WO2018212064A1 - 溶剤組成物およびその製造方法 - Google Patents
溶剤組成物およびその製造方法 Download PDFInfo
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- WO2018212064A1 WO2018212064A1 PCT/JP2018/018109 JP2018018109W WO2018212064A1 WO 2018212064 A1 WO2018212064 A1 WO 2018212064A1 JP 2018018109 W JP2018018109 W JP 2018018109W WO 2018212064 A1 WO2018212064 A1 WO 2018212064A1
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- resin
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
- C08J3/091—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids characterised by the chemical constitution of the organic liquid
- C08J3/095—Oxygen containing compounds
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- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
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- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- C08J5/241—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
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- C08L2207/53—Core-shell polymer
Definitions
- the present invention relates to a solvent composition containing core-shell polymer particles and a method for producing the same.
- Core-shell polymer particles are widely known as a material that improves the impact resistance of plastics.
- various insulating film forming materials such as printed wiring boards, copper-clad laminates, and resist materials, build-up materials, prepreg materials, and FPC adhesives that are used in them, they are also used in general paints. The utility value is increasing.
- Patent Document 1 discloses a master blend containing a solvent and a core-shell rubber.
- the solvent species for stably dispersing the core-shell rubber at a high concentration The combination of a certain type of solvent and the core-shell rubber has the disadvantage that the core-shell rubber swells excessively in the solvent and the master blend thickens, and the usable core-shell rubber is limited.
- An object of the present invention is to provide a low-viscosity solvent composition in which core-shell polymer particles are stably dispersed at a high concentration in an organic solvent, and a method for producing the same.
- the present inventors mixed an appropriate amount of a high-polar solvent to swell the core-shell polymer particles by a low / medium polar solvent, which is a solvent having a high affinity with the core-shell polymer particles, and thereby increase the viscosity.
- the present invention has been found to provide a solvent composition having a low viscosity while stably dispersing the core-shell polymer particles in a high concentration in an organic solvent. That is, the present invention includes the following 1) to 48).
- One or more organic solvents (B) satisfying the above conditions in a weight ratio of 15:85 to 95: 5 and one or more core-shell polymer particles, and the content of the core-shell polymer particles is a solvent composition.
- a solvent composition which is 20 to 40% by weight based on the total weight of the product.
- the organic solvent (A) is one or more solvents selected from the group consisting of toluene, xylene, ethyl acetate, propylene glycol monomethyl ether acetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone
- the organic solvent (B) is one or more solvents selected from the group consisting of butanol, methyl cellosolve, butyl cellosolve, propylene glycol monomethyl ether, dimethylformamide, dimethylacetamide, dimethyl sulfoxide, and N-methyl-2-pyrrolidone.
- the core layer of the core-shell polymer particles is (I) One or more monomers selected from the group consisting of diene monomers and (meth) acrylic acid ester monomers 50 wt% to 100 wt%, and other copolymerizable vinyls Rubber elastic body composed of less than 50% by weight of monomer, (Ii) a polysiloxane rubber-based elastic body, (Iii) a cross-linked aromatic vinyl, or (iv) a mixture of two or more of (i) to (iii) above,
- the other copolymerizable vinyl monomer is at least one selected from the group consisting of aromatic vinyl compounds, vinyl cyanide compounds, unsaturated carboxylic acid derivatives, (meth) acrylic acid amide derivatives, and maleimide derivatives.
- a step of mixing the resin with the solvent composition according to any one of 1) to 6), a step of impregnating fibers with the resin and the composition containing the core-shell polymer particles, and the resin A method for producing a prepreg, comprising a step of semi-curing.
- a step of mixing a resin and the solvent composition according to any one of 1) to 6) above, a step of impregnating a fiber with the composition containing the resin and the core-shell polymer particles, and semi-curing the resin A method for producing a copper clad laminate, comprising: a step of obtaining a prepreg, and a step of laminating and curing the prepreg with a copper foil.
- a step of mixing the resin with the solvent composition according to any one of 1) to 6) above, a step of impregnating a fiber with the composition containing the resin and the core-shell polymer particles, and semi-curing the resin A method for producing a printed wiring board, comprising: a step of obtaining a prepreg, a step of obtaining a copper-clad laminate by laminating and curing the prepreg with a copper foil, and a step of forming a circuit on the copper-clad laminate. 12) A method for producing a paint, comprising a step of mixing a resin and the solvent composition according to any one of 1) to 6).
- a method for producing an adhesive comprising a step of mixing a resin and the solvent composition according to any one of 1) to 6) above. 14) a step of mixing the resin with the solvent composition according to any one of 1) to 6), a step of combining the resin and the composition containing the core-shell polymer particles with an inorganic material, and the resin The manufacturing method of a composite material including the process of hardening
- the organic solvent (A) is one or more solvents selected from the group consisting of toluene, xylene, ethyl acetate, propylene glycol monomethyl ether acetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone
- the organic solvent (B) is one or more solvents selected from the group consisting of butanol, methyl cellosolve, butyl cellosolve, propylene glycol monomethyl ether, dimethylformamide, dimethylacetamide, dimethyl sulfoxide, and N-methyl-2-pyrrolidone. 20.
- aqueous medium dispersion in which core-shell polymer particles are dispersed in an aqueous medium, and one or more organic solvents (A) having a Hansen solubility parameter polar term ⁇ p of less than 11 and a hydrogen bond term ⁇ h of less than 10
- the manufacturing method of a varnish including the process of mixing resin and this solvent composition.
- a method for producing a resin composition comprising a step of evaporating the organic solvent (A) and / or the organic solvent (B) from the varnish after producing the varnish by the production method according to 24).
- a method for producing a prepreg comprising a step of producing a resin composition by the production method according to 25), a step of impregnating fibers with the resin composition or a dilution thereof, and a step of semi-curing the resin. .
- a method for producing a copper clad laminate comprising a step of producing a prepreg by the production method described in 26) above, and a step of laminating and curing the prepreg with a copper foil.
- a method for producing a printed wiring board comprising: a step of producing a copper-clad laminate by the production method described in 27); and a step of forming a circuit on the copper-clad laminate.
- a method for producing a paint comprising a step of producing a resin composition by the production method according to 25).
- the manufacturing method of an adhesive agent including the process of manufacturing a resin composition with the manufacturing method as described in said 25).
- the solvent composition of the present invention contains core-shell polymer particles stably dispersed at a high concentration in an organic solvent, and has a low viscosity and is easy to handle. Therefore, it is possible to easily disperse the core-shell polymer particles corresponding to the matrix resin and characteristics in each application without bringing excessive solvent into the varnish used in the production of printed wiring boards and paints. Higher toughness of plates and paints can be achieved.
- the solvent composition of the present invention comprises one or more organic solvents (A) having a Hansen solubility parameter with a polar term ⁇ p of less than 11 and a hydrogen bond term ⁇ h of less than 10, a polar term ⁇ p of 11 or more and a hydrogen bond term ⁇ h.
- organic solvent (B) satisfying at least one of 10 or more in a weight ratio of 15:85 to 95: 5, and one or more core-shell polymer particles, The content is 20 to 40% by weight based on the total weight of the solvent composition.
- the Hansen Solubility Parameter means a vector quantity parameter obtained by dividing the Hildebrand solubility parameter into three cohesive energy components of London dispersion force, dipole force and hydrogen bond force.
- the component corresponding to the London dispersion force of HSP is a dispersion term (hereinafter also referred to as “ ⁇ d”)
- the component corresponding to the force between dipoles is referred to as a polar term (hereinafter also referred to as “ ⁇ p”)
- hydrogen A component corresponding to the binding force is referred to as a hydrogen bond term (hereinafter also referred to as “ ⁇ h”). Since HSP is a vector quantity, it is known that there are almost no pure substances having exactly the same value.
- HSP Hansen Solubility Parameters in Practice
- the organic solvent (A) and the organic solvent (B) are selected so that they can be mixed without phase separation at a specific weight ratio within the above weight ratio range. Since it becomes easy to mix the organic solvent (A) and the organic solvent (B) without phase separation within the range of the above weight ratio, ⁇ p of the organic solvent (A) is preferably 1 or more, and preferably 3 or more. It is more preferable that it is 5 or more. Further, ⁇ h of the organic solvent (A) is preferably 3 or more, more preferably 4 or more, and further preferably 5 or more. For the same reason, ⁇ p of the organic solvent (B) is preferably 16 or less, more preferably 15 or less, and further preferably 14 or less. Further, ⁇ h of the organic solvent (B) is preferably 40 or less, more preferably 20 or less, and further preferably 15 or less.
- Organic solvent (A) corresponds to a low / medium polarity solvent
- organic solvent (B) corresponds to a high polarity solvent.
- the core layer is made of a nonpolar rubber or other crosslinked body
- the shell layer is made of a polymer having a higher polarity than the core layer.
- the solvent penetrates into the core layer, the core layer swells, and increases the viscosity due to an increase in the volume of the particles.
- the organic solvent (B) in addition to the organic solvent (A), the swelling of the core layer by the organic solvent is suppressed, and the affinity between the organic solvent and the shell layer is improved. It is considered that a solvent composition having a low viscosity can be realized while the core-shell polymer particles are stably dispersed at a high concentration in an organic solvent.
- the organic solvent (A) includes aromatic hydrocarbons such as toluene and xylene; esters such as ethyl acetate and propylene glycol monomethyl ether acetate; and acetone, methyl ethyl ketone, methyl isobutyl ketone, One or more solvents selected from the group consisting of ketones such as cyclohexanone are preferred.
- the organic solvent (B) is one or more solvents selected from the group consisting of butanol, methyl cellosolve, butyl cellosolve, propylene glycol monomethyl ether, dimethylformamide, dimethylacetamide, dimethyl sulfoxide, and N-methyl-2-pyrrolidone. Is preferred.
- the organic solvent (A) is toluene, xylene, propylene glycol monomethyl ether acetate, methyl ethyl ketone, and / or methyl isobutyl ketone because of low toxicity and easy handling with a boiling point of 150 ° C. or lower.
- the organic solvent (A) is toluene, xylene, and / or methyl ethyl ketone
- the organic solvent (B) is methyl cellosolve and / or propylene glycol monomethyl ether.
- the weight ratio of the organic solvent (A) to the organic solvent (B) in the organic solvent in that a solvent composition having a low viscosity and easy to handle can be obtained while stably dispersing the core-shell polymer particles at a high concentration of 20% by weight or more.
- the organic solvent (A) or the organic solvent (B) is in excess of the weight ratio of 15:85 to 95: 5, thickening of the solvent composition or aggregation of the core-shell polymer particles occurs.
- the water content in the solvent composition of the present invention is preferably 1% by weight or less in 100% by weight of the solvent composition. If it exceeds 1% by weight, it may cause surface roughness, fish eyes, and foaming of the prepreg or the coating film obtained from the paint in the production process of the printed wiring board.
- the content of the core-shell polymer particles in the solvent composition of the present invention is 20 to 40% by weight, preferably 22 to 38% by weight, more preferably 24 to 36% by weight, based on the total weight of the solvent composition. is there.
- the amount is less than 20% by weight, a solvent is excessively brought into the varnish used in the production of a printed wiring board or a paint, which causes a problem in workability.
- the content is higher than 40% by weight, the solvent composition is thickened and the handleability is deteriorated.
- the total content of the organic solvent in the solvent composition of the present invention is preferably 60 to 80% by weight, more preferably 62 to 78% by weight based on the total weight of the solvent composition for the same reason as described above. More preferably, it is 64 to 76% by weight.
- the solvent composition of the present invention may contain a small amount of a curable resin (hereinafter also referred to as other curable resin). Specifically, it is usually 0 to 300 parts by weight, preferably 0 to 200 parts by weight, more preferably 0 to 100 parts by weight, still more preferably 0 to 50 parts by weight, particularly preferably 100 parts by weight of the core-shell polymer particles. May contain 0 to 10 parts by mass of another curable resin. However, it is most preferable that the solvent composition of the present invention does not contain other curable resins. For solvent compositions that do not contain other curable resins, varnishes for various applications can be produced by blending a matrix resin suitable for various applications. Therefore, the solvent composition containing no other curable resin has an advantage that it can be used for varnish production for a wide range of uses.
- a curable resin hereinafter also referred to as other curable resin.
- the core-shell polymer particles are preferably present in the solvent composition at a volume average particle diameter of 10 nm to 500 nm.
- the volume average particle diameter is more preferably 30 nm to 350 nm, further preferably 60 nm to 250 nm, and most preferably 80 nm to 150 nm. If the volume average particle diameter is within the above range, aggregates of core-shell polymer particles may be present in the solvent composition, but the core-shell polymer particles are dispersed in the solvent composition in the form of primary particles. It is preferable.
- the volume average particle diameter is less than 10 nm or larger than 500 nm, the toughening effect by the core-shell polymer particles may be reduced.
- the volume average particle diameter of the core-shell polymer particles is more preferably 250 nm or less, and further preferably 150 nm or less.
- the volume average particle diameter can be measured using, for example, Microtrac UPA (manufactured by Nikkiso Co., Ltd.).
- the core-shell polymer particles are dispersed in the state of primary particles by, for example, the value of volume average particle diameter (Mv) / number average particle diameter (Mn) being 3 or less. This value is preferably 2.5 or less, more preferably 2 or less, and even more preferably 1.5 or less. When the value of the volume average particle diameter (Mv) / number average particle diameter (Mn) exceeds 3, it indicates that the core-shell polymer particles form secondary aggregates.
- the volume average particle diameter (Mv) / number average particle diameter (Mn) is the volume average particle diameter (Mv) and the number average particle diameter of the particles in the composition using Microtrac UPA (Nikkiso Co., Ltd.). Mn) can be measured, and the volume average particle diameter (Mv) can be determined by dividing the volume average particle diameter (Mv) by the number average particle diameter (Mn).
- the primary particle diameter of the core-shell polymer particles is preferably 10 nm to 500 nm, more preferably 30 nm to 400 nm, and even more preferably 60 nm to 300 nm, from the viewpoint that the dispersion diameter in the solvent composition can be easily secured. Preferably, it is 80 nm to 200 nm. As long as the average primary particle diameter is equal to or smaller than the volume average particle diameter (Mv) / number average particle diameter (Mn), the value of the volume average particle diameter can be used as it is.
- the core-shell polymer particles used in the present invention are core-shell polymer particles in which a shell portion is formed by graft polymerization of a graft copolymerizable monomer (a monomer for shell formation) to a crosslinked polymer serving as a core layer.
- the structure has a core layer made of a cross-linked polymer existing inside and at least one shell layer that is graft-polymerized on the surface of the core layer and covers the periphery or part of the cross-linked polymer. From the point that the viscosity of the solvent composition of the present invention is kept low and easy to handle, the core-shell polymer particles are stably dispersed in the solvent composition, and the toughening effect that is the purpose of the solvent composition is increased.
- the weight ratio of the core layer to the shell layer is preferably in the range of 50/50 to 99/1 in terms of the value of core layer / shell layer (weight ratio of monomers forming the polymer of each layer) / 40 to 95/5 is more preferable, and 70/30 to 90/10 is still more preferable.
- the core layer is preferably composed of a crosslinked polymer and does not substantially dissolve in the solvent. Therefore, the gel content of the core layer is preferably 60% by weight or more, more preferably 80% by weight or more, further preferably 90% by weight or more, and particularly preferably 95% by weight or more.
- the core layer comprises (i) one or more monomers selected from the group consisting of a diene monomer and a (meth) acrylic acid ester monomer, and 50% by weight or more and 100% by weight or less.
- a rubber elastic body comprising less than 50% by weight of a polymerizable vinyl monomer, (ii) a polysiloxane rubber-based elastic body, (iii) a cross-linked aromatic vinyl, or (iv) the above (i) to (iii) It is preferable that it consists of 2 or more types of mixtures among these.
- the other copolymerizable vinyl monomer is selected from the group consisting of an aromatic vinyl compound, a vinyl cyanide compound, an unsaturated carboxylic acid derivative, a (meth) acrylic acid amide derivative, and a maleimide derivative. It is preferable that it is a seed or more.
- (meth) acryl means acryl and / or methacryl.
- diene monomer examples include butadiene, isoprene, chloroprene and the like, and butadiene is particularly preferable.
- (meth) acrylic acid ester monomer examples include butyl acrylate, 2-ethylhexyl acrylate, lauryl methacrylate, and the like, and butyl acrylate and 2-ethylhexyl acrylate are particularly preferable. These may be used alone or in combination of two or more.
- the amount of one or more monomers selected from the group consisting of diene monomers and (meth) acrylic acid ester monomers is preferably 50% by weight or more based on the total weight of the core layer. Preferably it is 60 weight% or more. When the usage-amount of this monomer is less than 50 weight%, the toughening effect by a core-shell polymer particle may fall.
- the core layer may be a homopolymer or a copolymer obtained by polymerizing one or more monomers selected from the group consisting of a diene monomer and a (meth) acrylic acid ester monomer. However, it may be a copolymer of a diene monomer and / or a (meth) acrylate monomer and a vinyl monomer copolymerizable therewith.
- a copolymerizable vinyl monomer one kind selected from the group consisting of aromatic vinyl compounds, vinyl cyanide compounds, unsaturated carboxylic acid derivatives, (meth) acrylic acid amide derivatives, and maleimide derivatives. The above monomers are mentioned.
- Examples of the aromatic vinyl compound include styrene, ⁇ -methylstyrene, and vinyl naphthalene.
- Examples of the vinyl cyanide compound include (meth) acrylonitrile and substituted acrylonitrile.
- Examples of the unsaturated carboxylic acid derivative include (meth) acrylic acid, itaconic acid, crotonic acid, maleic anhydride and the like.
- Examples of the (meth) acrylamide derivative include (meth) acrylamide (including N-substituted product).
- Examples of the maleimide derivative include maleic imide (including N-substituted product). These may be used alone or in combination of two or more.
- the amount of these copolymerizable vinyl monomers used is preferably less than 50% by weight, more preferably less than 40% by weight, based on the weight of the entire core layer.
- the core layer is preferably a styrene-butadiene rubber from the viewpoint that the dielectric loss tangent of the core-shell polymer particles can be reduced and the electrical properties of the copper-clad laminate can be improved.
- the core layer may be a cross-linked aromatic vinyl.
- the crosslinked body include a copolymer of an aromatic vinyl compound and a crosslinking monomer.
- the aromatic vinyl compound include unsubstituted vinyl aromatic compounds such as styrene and 2-vinylnaphthalene; substituted vinyl aromatic compounds such as ⁇ -methylstyrene; 3-methylstyrene, 4-methylstyrene, 2,4 -Ring alkylated vinyl aromatic compounds such as dimethyl styrene, 2,5-dimethyl styrene, 3,5-dimethyl styrene, 2,4,6-trimethyl styrene; ring alkoxyl such as 4-methoxy styrene and 4-ethoxy styrene Vinyl aromatic compounds; ring halogenated aromatic compounds such as 2-chlorostyrene and 3-chlorostyrene; ring ester-substituted vinyl aromatic compounds such as 4-acetoxystyrene;
- the core layer contains (i) a rubber elastic body or (iii) an aromatic vinyl crosslinked body, in order to adjust the degree of crosslinking as a component constituting the core layer, or by coating the core layer and using a solvent core layer
- a crosslinkable monomer may be used.
- the crosslinkable monomer include divinylbenzene, butanediol di (meth) acrylate, triallyl (iso) cyanurate, allyl (meth) acrylate, diallyl itaconate, diallyl phthalate, and the like.
- the amount of the crosslinkable monomer used is preferably 0.2 to 7% by weight, more preferably 0.5 to 5% by weight, and further preferably 1 to 3% by weight in 100% by weight of the core-shell polymer particles. If the amount used exceeds 7% by weight, the toughening effect of the core-shell polymer particles may be reduced.
- the coating of the core layer with the crosslinkable monomer is effective in suppressing the fusion between the core-shell polymer particles, and therefore, when the solvent composition of the present invention is produced, the core-shell polymer particle stirring tank It is suitable for suppressing sticking to a wall or the like.
- a chain transfer agent may be used in the polymerization of the core layer in order to adjust the molecular weight and the degree of crosslinking of the polymer constituting the core layer.
- examples of the chain transfer agent that can be used include alkyl mercaptans having 5 to 20 carbon atoms.
- the amount of the chain transfer agent used is preferably 5% by weight or less, more preferably 3% by weight or less, in 100% by weight of the core layer. When the amount of the chain transfer agent used exceeds 5% by weight, the amount of uncrosslinked components contained in the core layer increases, the viscosity of the solvent composition of the present invention increases, and handling becomes difficult.
- the core layer may include a polysiloxane rubber-based elastic body.
- a polysiloxane rubber-based elastic body for example, a polysiloxane rubber composed of alkyl or aryl disubstituted silyloxy units such as dimethylsilyloxy, methylphenylsilyloxy, diphenylsilyloxy and the like can be used.
- the polysiloxane rubber-based elastic body may be crosslinked by using a polyfunctional alkoxysilane compound partly at the time of polymerization, or by radically reacting a silane compound having a vinyl reactive group, if necessary. What introduced the structure is more preferable.
- the type of polymer constituting the shell layer is not particularly limited.
- the polymer constituting the shell layer is a (meth) acrylic acid ester monomer or aromatic vinyl monomer because of its high affinity with the matrix resin used for copper clad laminates and paints.
- (Co) polymers obtained by polymerizing at least one selected from vinyl cyanide monomers, unsaturated carboxylic acid derivatives, (meth) acrylamide derivatives, and maleimide derivatives are preferred.
- the polymer constituting the shell layer is composed of the above-mentioned (meth) acrylic acid ester monomer, aromatic vinyl monomer, cyanide.
- a functional group selected from the group consisting of vinyl monomers, unsaturated carboxylic acid derivatives, (meth) acrylamide derivatives, or maleimide derivatives, and epoxy groups, carboxyl groups, hydroxyl groups, amino groups, and carbon-carbon double bonds; More preferably, it is a copolymer obtained by copolymerizing one or more kinds of vinyl monomers.
- These functional groups may have reactivity with an epoxy resin, a curing agent, a curing catalyst, and the like.
- the core-shell polymer particles have the function of chemically reacting with them to form bonds under conditions where epoxy resin, etc. reacts and cures with the curing agent, so that the core-shell polymer particles re-aggregate and disperse under the curing conditions. It can suppress effectively that a state deteriorates.
- Examples of the (meth) acrylic acid ester monomers include (meth) acrylic such as methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, and the like. Examples include acid alkyl esters. Examples of aromatic vinyl monomers include alkyl-substituted styrenes such as styrene and ⁇ -methylstyrene, and halogen-substituted styrenes such as bromostyrene and chlorostyrene. Examples of the vinyl cyanide monomer include (meth) acrylonitrile and substituted (meth) acrylonitrile.
- Examples of the unsaturated carboxylic acid derivative include (meth) acrylic acid, itaconic acid, crotonic acid, maleic anhydride and the like.
- Examples of the (meth) acrylamide derivative include (meth) acrylamide (including N-substituted product).
- Examples of the maleimide derivative include maleic imide (including N-substituted product).
- Examples of the monomer having a reactive functional group include (meth) acrylic acid esters having a reactive side chain such as 2-hydroxyethyl (meth) acrylate, 2-aminoethyl (meth) acrylate, ( (Meth) glycidyl acrylate, etc .;
- Examples of vinyl ethers having a reactive functional group include glycidyl vinyl ether and allyl vinyl ether.
- the shell layer of the core-shell polymer particles is made of, for example, an aromatic vinyl monomer (especially styrene) 0 to 80% by mass (preferably 10 to 70% by mass), a vinyl cyanide monomer (especially acrylonitrile).
- (meth) acrylic acid ester monomer especially methyl methacrylate 0-50% by mass (preferably 5 45% by mass) and a monomer having a reactive functional group (particularly glycidyl methacrylate) 0 to 50% by mass (preferably 5 to 30% by mass, more preferably 10 to 25% by mass) to form a shell layer
- (meth) acrylic acid ester monomer especially methyl methacrylate
- a monomer having a reactive functional group particularly glycidyl methacrylate
- a polymer of monomers for use total 100% by mass.
- the core-shell polymer particle is composed of styrene, more preferably 40% by weight or more, in that the dielectric loss tangent of the core-shell polymer particle can be reduced and the electrical properties of the copper clad laminate can be improved.
- 50% by weight or more is more preferable.
- the core-shell polymer particles having a high styrene content easily swell with an organic solvent, and there has been a problem that the solvent composition has been thickened conventionally, but the use of the solvent composition of the present invention causes swelling. It is suppressed and a low-viscosity solvent composition can be obtained. Therefore, it is significant to use the core-shell polymer particles having a high styrene content in the present invention.
- the production method of the core-shell polymer particles is not particularly limited, and can be produced by a known method such as emulsion polymerization, suspension polymerization, microsuspension polymerization, and the like. Among these, the production method by multistage emulsion polymerization is particularly preferable.
- emulsifying (dispersing) agents used in emulsion polymerization include alkyl or aryl sulfonic acids such as dioctyl sulfosuccinic acid and dodecylbenzene sulfonic acid, alkyl or aryl ether sulfonic acids, alkyl or aryl sulfuric acids such as dodecyl sulfuric acid, Alkyl or aryl ether sulfuric acid, alkyl or aryl substituted phosphoric acid, alkyl or aryl ether substituted phosphoric acid, N-alkyl or aryl sarcosine acid such as dodecyl sarcosine acid, alkyl or aryl carboxylic acid such as oleic acid or stearic acid, alkyl or aryl Alkali metal salts or ammonium salts of various acids such as ether carboxylic acids; Nonionic emulsifiers or dispersants such as alkyl or
- the emulsifier is preferably an anionic emulsifier from the viewpoint of polymerization stability, more preferably an anionic emulsifier of an alkali metal salt, and still more preferably an anionic emulsifier of a sodium salt and / or a potassium salt.
- emulsifying (dispersing) agents are used as little as possible within the range that does not hinder the dispersion stability in the preparation process of the aqueous medium dispersion containing the core-shell polymer particles. May be.
- the solvent composition may be extracted and removed to a residual amount that does not affect the physical properties of the application in which the solvent composition is used. For this reason, it is more preferable that the emulsifying (dispersing) agent has water solubility.
- the method for producing a solvent composition is, in order, a first step of obtaining a core-shell polymer particle loose aggregate from an aqueous medium dispersion containing core-shell polymer particles (preferably an aqueous latex obtained by emulsion polymerization).
- it may include a third step of evaporating water.
- an aqueous medium dispersion in which the core-shell polymer particles are dispersed in an aqueous medium is mixed with an organic solvent (A), and then mixed with water to obtain core-shell polymer particles.
- a third step of mixing the particle dispersion with the organic solvent (B) and evaporating the organic solvent and / or water from the resulting mixture are preferable because of its excellent handling properties.
- the first step includes an operation of mixing an aqueous medium dispersion in which core-shell polymer particles are dispersed in an aqueous medium with an organic solvent (A).
- organic solvent (A) By mixing with the organic solvent (A), phase separation occurs due to the addition of water, which will be described later, and it is possible to form a core-shell polymer particle loose aggregate in a moderately aggregated state that can be redispersed.
- the organic solvent (A) preferably has a specific gravity lighter than water from the viewpoint of facilitating separation from the liquid phase (mainly the aqueous phase) in the second step described later.
- the amount of the organic solvent (A) mixed with the aqueous medium dispersion is preferably 50 parts by mass or more and more preferably 60 parts by mass or more with respect to 100 parts by mass of the aqueous medium dispersion. Moreover, it is preferable that it is 250 mass parts or less, and it is more preferable that it is 150 mass parts or less.
- the mixing amount of the organic solvent (A) is less than 50 parts by mass, it may be difficult to produce a core-shell polymer particle loose aggregate.
- the mixing amount of the organic solvent (A) exceeds 250 parts by mass, the required amount of water to be added to obtain the core-shell polymer particle loose aggregate may increase, and the production efficiency may decrease.
- a known apparatus can be used for the mixing operation of the aqueous medium dispersion and the organic solvent (A).
- a general apparatus such as a stirring tank with a stirring blade may be used, or a static mixer (static mixer), a line mixer (a system in which a stirring apparatus is incorporated in a part of piping), or the like may be used.
- the first step includes an operation of adding and mixing water after the operation of mixing the aqueous medium dispersion and the organic solvent (A).
- phase separation occurs, and a core-shell polymer particle loose aggregate in a moderately aggregated state capable of redispersion can be formed in the liquid phase.
- electrolyte such as a water-soluble emulsifier or dispersant, a water-soluble polymerization initiator, or a reducing agent that is used in the preparation of the aqueous medium dispersion and may be contained in the aqueous medium dispersion is used in the aqueous phase. Can also be eluted.
- the amount of water mixed is preferably 40 parts by mass or more and 100 parts by mass or more with respect to 100 parts by mass of the organic solvent (A) used for mixing with the aqueous medium dispersion. More preferred. Moreover, it is preferable that it is 300 mass parts or less, and it is more preferable that it is 250 mass parts or less. When the amount of water mixed is less than 40 parts by mass, it may be difficult to obtain the core-shell polymer particles as a loose aggregate.
- the concentration of the organic solvent in the core-shell polymer particle slow aggregate is lowered in the second step described later, and therefore the core-shell polymer particle slow aggregate and the organic solvent (A)
- the dispersibility of the core-shell polymer particles may be lowered, for example, the time required for re-dispersing the core-shell polymer particles in the organic solvent (A) may be prolonged.
- the second step includes an operation for separating and recovering the core-shell polymer particle loose aggregate obtained in the first step from the liquid phase.
- water-soluble impurities such as an emulsifier can be separated and removed from the core-shell polymer particles.
- the core-shell polymer particle slow aggregate is generally floatable with respect to the liquid phase. And a method of discharging the liquid phase (mainly aqueous phase) from the bottom of the stirring tank, and a method of filtering the core-shell polymer particle loose agglomerates using a filter paper, a filter cloth, or a metal screen having a relatively coarse opening.
- the amount of the organic solvent (A) contained in the obtained core-shell polymer particle loose aggregate is preferably 30% by mass or more and more preferably 35% by mass or more in 100% by mass of the core-shell polymer particles. . Moreover, it is preferable that it is 75 mass% or less, and it is more preferable that it is 70 mass% or less.
- the content of the organic solvent (A) contained in the loose agglomerates is less than 30% by mass, the time required for redispersion of the core-shell polymer particles described later into the organic solvent (A) is prolonged or cannot be redispersed. Inconveniences such as the fact that aggregates that have been aggregated to a certain degree are likely to remain may occur. Further, when the content of the organic solvent (A) exceeds 75% by mass, a large amount of water dissolves in the organic solvent and remains in the loose agglomerates. May cause aggregation.
- the amount of the organic solvent contained in the core-shell polymer particle slow aggregate is determined by drying the core-shell polymer particle slow aggregate at 120 ° C. for 15 minutes after precise weighing, and reducing the mass reduced thereby. It can obtain
- the second step further includes an operation of obtaining the core-shell polymer particle dispersion by mixing the core-shell polymer particle loose aggregate obtained as described above with the organic solvent (A).
- the core-shell polymer particle loose aggregate since the core-shell polymer particles are aggregated in a loose state, the core-shell polymer particles can be easily mixed with the organic solvent (A) in the state of primary particles in the organic solvent (A). Can be redispersed.
- the organic solvent used in the second step is the organic solvent (A) similarly to the organic solvent used in the first step.
- the organic solvent can be azeotroped with water when the organic solvent is evaporated and removed in the third step to be described later, and the water contained in the solvent composition can be removed.
- the organic solvent (A) used in the second step may be of a different type from the organic solvent (A) used in the first step, but more reliably redisperse the core-shell polymer particles in the second step. From this point of view, the organic solvent (A) used in the first step is preferably the same.
- the amount of the organic solvent (A) used in the second step is preferably 40 parts by mass or more and more preferably 200 parts by mass or more with respect to 100 parts by mass of the core-shell polymer particle loose aggregate. Moreover, it is preferable that it is 1400 mass parts or less, and it is more preferable that it is 1000 mass parts or less.
- the mixing amount of the organic solvent (A) is less than 40 parts by mass, it becomes difficult to uniformly disperse the core-shell polymer particles in the organic solvent, and the agglomerated core-shell polymer particles remain as lumps or the viscosity increases, making handling difficult. Sometimes.
- the amount of the organic solvent (A) exceeds 1400 parts by mass, a large amount of energy and a large-scale apparatus are required for evaporating and distilling off the solvent in the third step described later, which is uneconomical.
- the core-shell polymer particle aggregate obtained in the first step is separated and recovered from the liquid phase, mixed with the organic solvent (A), And the operation of obtaining a loose aggregate of core-shell polymer particles may be performed once or more. Thereby, the residual amount of water-soluble impurities, such as an emulsifier, contained in the core-shell polymer particle loose aggregate can be further reduced.
- the third step includes an operation of mixing the organic solvent (B) with the core-shell polymer particle dispersion obtained in the second step and an operation of evaporating the organic solvent and / or water. Removal of water contained in the core-shell polymer particle dispersion by the evaporation, adjustment of particle concentration in the final solvent composition, a part of the organic solvent (A) used in the first step and the second step, The organic solvent (B) to be contained in the final solvent composition can be replaced.
- the solvent composition of the present invention having a low viscosity can be obtained while the core-shell polymer particles are stably dispersed at a high concentration.
- the mixing amount of the organic solvent (B) used in the third step is not particularly limited, but may be, for example, about 50 to 1000 parts by mass with respect to 100 parts by mass of the core-shell polymer particles.
- the method for evaporating water and / or the organic solvent from the mixture obtained by mixing the organic solvent (B) is not particularly limited, and a known method can be applied.
- a method of charging the mixture of the core-shell polymer particle dispersion and the organic solvent (B) in a tank and distilling the mixture under heating under reduced pressure, a method of bringing a dry gas and the mixture into countercurrent contact in the tank, thin film evaporation Examples include a continuous method using a machine, a method using an extruder equipped with a devolatilization mechanism or a continuous stirring tank, and the like. Conditions such as temperature and time required for distilling off the solvent can be appropriately selected within a range that does not impair the quality of the obtained solvent composition.
- the solvent composition of the present invention can be mixed with a resin and used to produce a varnish. That is, the solvent composition of the present invention can be used as a raw material for varnish.
- the varnish of the present invention is a mixture of the solvent composition of the present invention and a resin.
- the resin that is a component of the varnish of the present invention include a curable or polymerizable monomer, a curable or polymerizable oligomer, a resin obtained by curing these, and a thermoplastic polymer. These may use 1 type and may use it in combination of 2 or more type.
- the resin is one or more selected from the group consisting of a curable or polymerizable monomer and a curable or polymerizable oligomer, and is a liquid at room temperature, these are cured or polymerized.
- the cured product having excellent toughness is particularly preferable because it can be obtained in various shapes.
- the curable or polymerizable monomer or the curable or polymerizable oligomer is preferably an organic compound having a functional group having a polymerizable or curable reactivity.
- the functional group having polymerizable or curing reactivity include an epoxy group, an oxetane group, a hydroxyl group, a carbon-carbon double bond, an amino group, an imide group, a carboxylic acid group, a carboxylic anhydride group, a cyclic ester, and a cyclic amide.
- One selected from the group consisting of benzoxazine groups and cyanate ester groups is preferred.
- an epoxy group, an oxetane group, a phenolic hydroxyl group, a cyclic ester, a cyanate ester group, a benzoxazine group, and / or a compound having a carbon-carbon double bond may be used as a polymerizable or curable resin.
- a compound having an epoxy group a so-called epoxy resin is particularly preferable.
- the epoxy resin has a glycidyl ether substituted compound of a compound having a basic skeleton such as a bisphenol compound, a hydrogenated bisphenol compound, phenol or o-cresol novolak, an aromatic amine, a polycyclic aliphatic or aromatic compound, and a cyclohexene oxide skeleton.
- a compound having a basic skeleton such as a bisphenol compound, a hydrogenated bisphenol compound, phenol or o-cresol novolak, an aromatic amine, a polycyclic aliphatic or aromatic compound, and a cyclohexene oxide skeleton.
- a typical example is bisphenol A diglycidyl ether or a condensate thereof, so-called bisphenol A type epoxy resin.
- the varnish of the present invention can further contain a curing agent, a hardener, a catalyst, a flame retardant, a synergist, an additive, an inert filler, and the like.
- the varnish of the present invention is a molding material, an adhesive, a fiber or filler reinforced composite material, a sealing material, a casting material, an insulating material, a coating material, a filler, a photomolding material, an optical component, ink, toner, or these It can be suitably used as a raw material.
- examples of methods that can be used to mold the varnish of the present invention include transfer molding, injection molding, cast molding, coating baking, and rotation. Molding method, photo molding method, hand lay-up molding method combined with carbon fiber, glass fiber, prepreg molding method, pultrusion molding method, filament winding molding method, press molding method, resin transfer molding (RTM, VaRTM) molding method , SMC molding methods and the like, but are not limited thereto.
- a resin composition having a small volatile content By evaporating the organic solvent (A) and / or the organic solvent (B) from the varnish of the present invention, a resin composition having a small volatile content can be produced.
- the resin composition having a small amount of volatile matter for example, a resin composition having a total amount of volatile matter in the resin composition of 5000 ppm or less is preferable.
- the resin composition having a total amount of volatile components of 5000 ppm or less in the present invention contains 10 ppm or more of an organic solvent (A) having a polar term ⁇ p of a Hansen solubility parameter of less than 11 and a hydrogen bond term ⁇ h of less than 10, and a polar term
- the organic solvent (B) satisfying at least one of ⁇ p of 11 or more and hydrogen bond term ⁇ h of 10 or more is preferably contained at 10 ppm or more.
- the resin composition having a low volatile content in the present invention contains 100 parts by weight of the resin and 5 to 70 parts by weight of the core-shell polymer particles, the total amount of volatiles in the resin composition is 5000 ppm or less, and the organic solvent (A)
- a resin composition containing 10 ppm or more and 10 ppm or more of the organic solvent (B) (hereinafter referred to as a trace solvent mixed resin composition) is preferable.
- the lower limit of the amount of the organic solvent (A) contained in the trace solvent mixed resin composition is 10 ppm, preferably 50 ppm, and the upper limit of the amount of the organic solvent (A) is preferably 2000 ppm. Preferably it is 1500 ppm.
- the lower limit of the amount of the organic solvent (B) contained in the trace solvent mixed resin composition is 10 ppm, preferably 50 ppm, and the upper limit of the amount of the organic solvent (B) is preferably 4000 ppm. Preferably it is 3000 ppm, More preferably, it is 2000 ppm.
- the trace solvent mixed resin composition of the present invention contains the same resin as that contained in the varnish of the present invention.
- the resin include a curable or polymerizable monomer, a curable or polymerizable oligomer, a resin obtained by curing these, and a thermoplastic polymer. These may use 1 type and may use it in combination of 2 or more type.
- the resin is one or more selected from the group consisting of a curable or polymerizable monomer and a curable or polymerizable oligomer, and is a liquid at room temperature, these are cured or polymerized.
- the cured product having excellent toughness is particularly preferable because it can be obtained in various shapes.
- the curable or polymerizable monomer or the curable or polymerizable oligomer is preferably an organic compound having a functional group having a polymerizable or curable reactivity.
- the functional group having polymerizable or curing reactivity include an epoxy group, an oxetane group, a hydroxyl group, a carbon-carbon double bond, an amino group, an imide group, a carboxylic acid group, a carboxylic anhydride group, a cyclic ester, and a cyclic amide.
- One selected from the group consisting of benzoxazine groups and cyanate ester groups is preferred.
- an epoxy group, an oxetane group, a phenolic hydroxyl group, a cyclic ester, a cyanate ester group, a benzoxazine group, and / or a compound having a carbon-carbon double bond may be used as a polymerizable or curable resin.
- a compound having an epoxy group a so-called epoxy resin is particularly preferable.
- the epoxy resin has a glycidyl ether substituted compound of a compound having a basic skeleton such as a bisphenol compound, a hydrogenated bisphenol compound, phenol or o-cresol novolak, an aromatic amine, a polycyclic aliphatic or aromatic compound, and a cyclohexene oxide skeleton.
- a compound having a basic skeleton such as a bisphenol compound, a hydrogenated bisphenol compound, phenol or o-cresol novolak, an aromatic amine, a polycyclic aliphatic or aromatic compound, and a cyclohexene oxide skeleton.
- a typical example is bisphenol A diglycidyl ether or a condensate thereof, so-called bisphenol A type epoxy resin.
- the amount of the core-shell polymer particles with respect to 100 parts by weight of the resin is 5 to 70 parts by weight, preferably 20 to 65 parts by weight, more preferably 25 parts by weight to 60 parts by weight.
- the water concentration in the trace solvent mixed resin composition of the present invention is usually 1% by weight or less, more preferably 0.5% by weight or less, and particularly preferably 0.3% by weight or less.
- the organic solvent (A) in the trace solvent mixed resin composition of the present invention includes aromatic hydrocarbons such as toluene and xylene; esters such as ethyl acetate and propylene glycol monomethyl ether acetate; and acetone, methyl ethyl ketone, and methyl isobutyl ketone.
- aromatic hydrocarbons such as toluene and xylene
- esters such as ethyl acetate and propylene glycol monomethyl ether acetate
- acetone, methyl ethyl ketone, and methyl isobutyl ketone One or more solvents selected from the group consisting of ketones such as cyclohexanone are preferred.
- the organic solvent (B) is one or more solvents selected from the group consisting of butanol, methyl cellosolve, butyl cellosolve, propylene glycol monomethyl ether, dimethylformamide, dimethylacetamide, dimethyl sulfoxide, and N-methyl-2-pyrrolidone. Is preferred. Further, the volume average particle diameter of the core-shell polymer particles in the trace solvent mixed resin composition of the present invention is preferably 10 nm to 500 nm.
- the trace solvent mixed resin composition of the present invention can further contain a curing agent, a hardener, a catalyst, a flame retardant, a synergist, an additive, an inert filler, and the like.
- the trace solvent mixed resin composition of the present invention can be produced by evaporating the organic solvent (A) and / or the organic solvent (B) from the varnish of the present invention.
- the method for evaporating the solvent is not particularly limited, and examples thereof include a method of distilling off under heating and reduced pressure, and the conditions of 70 ° C. or more and 100 torr or less are preferable in that the solvent can be evaporated in a short time. At this time, an evaporator, an evaporator having a stirring blade and a heating jacket, a thin film evaporator, or the like can be used.
- the trace solvent mixed resin composition of the present invention comprises a molding material, an adhesive, a fiber or filler reinforced composite material, a sealing material, a casting material, an insulating material, a coating material, a filler, a photomolding material, an optical component, an ink, It can be suitably used as a toner. Moreover, the dilution obtained by adding an organic solvent with respect to the trace solvent mixed resin composition of this invention can also be used for the same use.
- examples of methods that can be used to mold the trace solvent mixed resin composition of the present invention or a dilution thereof include, for example, transfer molding, injection molding, Mold molding method, coating baking method, rotational molding method, photo molding method, hand lay-up molding method combined with carbon fiber, glass fiber, prepreg molding method, pultrusion molding method, filament winding molding method, press molding method Resin transfer molding (RTM, VaRTM) molding method, SMC molding method and the like, but are not limited thereto.
- the present invention is also a cured product of a trace solvent mixed resin composition.
- the cured product is obtained by dispersing core-shell polymer particles in a matrix made of a cured resin.
- the solvent composition, varnish, and low volatile resin composition or trace solvent mixed resin composition of the present invention are prepregs, copper-clad laminates, printed wiring boards, paints (both solvent-containing paints and solvent-free paints). Good), composite materials, castings, adhesives (which may be solvent-containing or solvent-free adhesives), other molding materials, sealing materials, insulating materials, fillers It can also be used as a raw material for photomolding materials, optical components, inks and toners.
- the casting here is not limited to a metal product, but mainly means a molded body whose matrix is a resin. In particular, it is suitably used for an outermost layer (solder resist) of a printed wiring board, an inner layer (build-up material, prepreg material) of a multilayer printed wiring board, or an FPC adhesive (FPC: flexible wiring board).
- a raw material for solder resist material When used as a raw material for solder resist material, it can be used as a raw material for printed wiring boards (single-sided, double-sided or multilayer), COF, or TAB.
- a raw material for a thermosetting buildup material When used as a raw material for a thermosetting buildup material, it can be used as a raw material for a buildup multilayer wiring board.
- a raw material for a prepreg material it can be used as a raw material for a build-up multilayer wiring board, a printed wiring board (single-sided, double-sided or multilayer), or a multilayer FPC.
- FPC adhesive When used as a raw material for an FPC adhesive, it can be used as a raw material for an adhesive for a three-layer FCCL (Flexible Copper Clad Laminate) or an adhesive for a coverlay, and as a raw material for an FPC (single side, double side or multilayer) Can be used.
- FCCL Flexible Copper Clad Laminate
- FPC single side, double side or multilayer
- a resin composition with a low volatile content or a trace solvent mixed resin composition, or a diluted product thereof the resin contained therein is semi-cured. That's fine.
- the obtained prepreg can be further laminated with a copper foil and cured to produce a copper-clad laminate.
- a printed wiring board can be manufactured by forming a circuit on the obtained copper-clad laminate.
- a resin composition with a low volatile content or a trace solvent mixed resin composition, or a diluted product thereof is combined with an inorganic material, and then the resin contained therein is added. What is necessary is just to harden.
- a resin composition with a low volatile content or a trace solvent mixed resin composition, or a diluted product thereof may be cured into a predetermined shape.
- the cured product of the epoxy resin composition in the copper clad laminate of the present invention contains 1 ppm or more of the organic solvent (A) and 1 ppm or more of the organic solvent (B), and further has a total volatile content of 100 ppm or less.
- a cured product is preferred.
- the cured product preferably contains 3 ppm or more of the organic solvent (A) and 3 ppm or more of the organic solvent (B), and more preferably contains 5 ppm or more of the organic solvent (A) and 5 ppm or more of the organic solvent (B). .
- the cured product of the epoxy resin composition in the printed wiring board of the present invention contains 1 ppm or more of the organic solvent (A) and 1 ppm or more of the organic solvent (B), and further has a total volatile content of 100 ppm or less. It is preferable that it is a thing.
- the cured product preferably contains 3 ppm or more of the organic solvent (A) and 3 ppm or more of the organic solvent (B), and more preferably contains 5 ppm or more of the organic solvent (A) and 5 ppm or more of the organic solvent (B). .
- the method for producing the solvent composition of the present invention containing the organic solvent (A) and the organic solvent (B) in a weight ratio of 15:85 to 95: 5 comprises any two or more of the following steps: However, it is preferable that all steps are included.
- aqueous medium dispersion in which core-shell polymer particles are dispersed in an aqueous medium is mixed with one or more organic solvents (A) having a polar term ⁇ p of a Hansen solubility parameter of less than 11 and a hydrogen bond term ⁇ h of less than 10.
- Table 1 shows the Hansen solubility parameters of the solvents used in the examples.
- volume average particle diameter of core-shell polymer particles in the solvent composition The volume average particle diameter of the core-shell polymer particles contained in the solvent composition was measured using a particle diameter measuring device (Microtrac UPA manufactured by Nikkiso Co., Ltd.). However, a solvent composition diluted with methyl ethyl ketone was used as a measurement sample. Measurement is performed by inputting the refractive index of methyl ethyl ketone and the refractive index of each core-shell polymer particle, and adjusting the sample concentration so that the measurement time is 600 seconds and the Signal Level is in the range of 0.6 to 0.8. It was.
- Amount of solvent in epoxy resin composition The amount of solvent in the epoxy resin composition was measured by gas chromatography (GC-2014, manufactured by Shimadzu Corporation).
- PPP paramentane hydroperoxide
- SSS sodium formaldehyde sulfoxylate
- EDTA 0.003 parts by weight of ferrous sulfate heptahydrate
- the residual monomer was removed by devolatilization under reduced pressure to complete the polymerization, and a polybutadiene rubber latex (R-1) containing polybutadiene rubber as a main component was obtained.
- the volume average particle diameter of the polybutadiene rubber particles contained in the obtained latex was 80 nm.
- Polymerization was initiated by adding 0.015 parts by weight of paramentane hydroperoxide, followed by 0.04 parts by weight of sodium formaldehyde sulfoxylate. Four hours after the start of polymerization, 0.01 part by weight of paramentane hydroperoxide, 0.0015 part by weight of ethylenediaminetetraacetic acid and 0.001 part by weight of ferrous sulfate were added. At 10 hours from the start of the polymerization, the residual monomer was removed by devolatilization under reduced pressure to complete the polymerization. The resulting styrene-butadiene rubber latex (R-3) had a volume average particle size of 100 nm.
- EDTA EDTA
- ferrous sulfate and heptahydrate EDTA
- SFS 2 parts by weight of triallyl isocyanurate (TAIC) and cumene hydroperoxide (CHP)
- TAIC triallyl isocyanurate
- CHP cumene hydroperoxide
- a mixture of 11.7 parts by weight, 4.3 parts by weight of AN, 4 parts by weight of GMA and 0.08 parts by weight of TBP was continuously added over 110 minutes.
- 0.04 part by weight of TBP was added, and stirring was further continued for 1 hour to complete the polymerization to obtain an aqueous latex (L-4) containing core-shell polymer particles.
- the volume average particle size of the core-shell polymer particles contained in the obtained aqueous latex was 110 nm.
- aqueous latex (R-4) containing a crosslinked polymer layer of polymer fine particles was obtained.
- a mixture of 20 parts by weight of MMA, 5 parts by weight of GMA, and 0.05 parts by weight of CHP was continuously added thereto over 200 minutes.
- 0.04 part by weight of CHP was added, and stirring was further continued for 1 hour to complete the polymerization, thereby obtaining an aqueous latex (L-5) containing core-shell polymer particles.
- the volume average particle size of the core-shell polymer particles contained in the obtained aqueous latex was 122 nm.
- Example 1 126 parts by weight of methyl ethyl ketone (MEK) was charged into a 1 L mixing tank at 30 ° C., and 126 parts by weight of an aqueous latex (L-1) of core-shell polymer particles was charged while stirring. After mixing uniformly, 200 parts by weight of water was added at a feed rate of 80 parts by weight / min. After completion of the supply, the stirring was immediately stopped to obtain a slurry liquid containing floating core-shell polymer particle loose aggregates.
- MEK methyl ethyl ketone
- the core-shell polymer particle loose aggregate was left in the tank, and 350 parts by weight of the liquid phase was discharged from the discharge port at the bottom of the tank.
- 150 parts by weight of MEK was added to and mixed with the obtained core-shell polymer particle loose aggregates to obtain a MEK dispersion in which the core-shell polymer particles were dispersed.
- This MEK dispersion was transferred to a 1 L tank with a jacket and a stirrer (a stirrer equipped with an anchor blade having an inner diameter of 100 mm and an airfoil of 90 mm), and dimethylformamide (DMF) had a core / shell polymer particle / DMF ratio of 30/70. And uniformly mixed.
- a stirrer a stirrer equipped with an anchor blade having an inner diameter of 100 mm and an airfoil of 90 mm
- DMF dimethylformamide
- the jacket temperature was set to 70 ° C. and the degree of vacuum was set to 200 torr, and MEK and water were distilled off until the content of the core-shell polymer particles reached 28% by weight. At this time, a small amount of DMF was also azeotroped.
- the jacket temperature is set to 70 ° C. and the degree of vacuum is set to 200 torr, and the content of the core-shell polymer particle concentration reaches 30% by weight.
- MEK, water and a small amount of DMF were distilled off. Nitrogen gas was introduced into the tank to return the internal pressure to atmospheric pressure, and a mixed solvent (MEK / DMF) composition of core-shell polymer particles was obtained.
- Table 2 shows the composition, viscosity, and particle diameter of the core-shell polymer particles of the obtained solvent composition.
- Example 2 A mixed solvent (MEK / DMF) composition of core-shell polymer particles was obtained in the same manner as in Example 1 except that the aqueous latex (L-1) in Example 1 was changed to (L-2).
- the dielectric loss tangent of the core-shell polymer particles contained in the aqueous latex (L-2) was 0.011.
- Table 2 shows the composition, viscosity, and particle diameter of the core-shell polymer particles of the obtained solvent composition.
- Example 3 Except that the aqueous latex (L-1) of Example 1 was changed to (L-3) and DMF was changed to propylene glycol monomethyl ether (PM), the core-shell polymer particle concentration of the final solvent composition was changed to 38% by weight.
- a mixed solvent (MEK / PM) composition of core-shell polymer particles was obtained.
- the dielectric loss tangent of the core-shell polymer particles contained in the aqueous latex (L-3) was 0.009.
- Table 2 shows the composition, viscosity, and particle diameter of the core-shell polymer particles of the obtained solvent composition.
- Example 4 Except that the aqueous latex (L-1) of Example 1 was changed to (L-4) and DMF was changed to propylene glycol monomethyl ether (PM), the core-shell polymer particle concentration of the final solvent composition was changed to 38% by weight.
- a mixed solvent (MEK / PM) composition of core-shell polymer particles was obtained.
- the dielectric loss tangent of the core-shell polymer particles contained in the aqueous latex (L-4) was 0.007.
- Table 2 shows the composition, viscosity, and particle diameter of the core-shell polymer particles of the obtained solvent composition.
- Example 5 A mixed solvent of core-shell polymer particles (MEK / PM) was used in the same manner as in Example 1 except that the aqueous latex (L-1) of Example 1 was changed to (L-5) and DMF was changed to propylene glycol monomethyl ether (PM). ) A composition was obtained. The dielectric loss tangent of the core-shell polymer particles contained in the aqueous latex (L-5) was 0.005. Table 2 shows the composition, viscosity, and particle diameter of the core-shell polymer particles of the obtained solvent composition.
- PMA propylene glycol monomethyl ether acetate
- Example 8 A mixed solvent (MEK / DMF) composition of core-shell polymer particles was obtained in the same manner as in Example 1 except that the concentration of the core-shell polymer particles in the final solvent composition was 35% by weight. Table 3 shows the composition, viscosity, and particle diameter of the core-shell polymer particles of the obtained solvent composition.
- Example 1 A mixed solvent (MEK / DMF) composition of core-shell polymer particles was obtained in the same manner as in Example 1 except that the concentration of the core-shell polymer particles in the final solvent composition was 41% by weight.
- Table 4 shows the composition, viscosity, and particle diameter of the core-shell polymer particles of the obtained solvent composition.
- Example 2 The solvent (MEK) composition of the core-shell polymer particles in the same manner as in Example 1 except that the DMF of Example 1 was changed to MEK, the degree of vacuum was changed to 350 torr, and the core-shell polymer particle concentration of the final solvent composition was 27% by weight. I got a thing.
- Table 4 shows the composition, viscosity, and particle diameter of the core-shell polymer particles of the obtained solvent composition.
- Example 3 A mixed solvent (MEK, PMA) composition of core-shell polymer particles was obtained in the same manner as in Example 1 except that the DMF in Example 1 was changed to PMA. Both the solvents in the mixed solvent composition correspond to the organic solvent (A). Table 4 shows the composition, viscosity, and particle diameter of the core-shell polymer particles of the obtained solvent composition.
- the core-shell polymer particle loose aggregate was left in the tank, and 350 parts by weight of the liquid phase was discharged from the discharge port at the bottom of the tank. 150 parts by weight of MEK was added to and mixed with the obtained core-shell polymer particle loose aggregate to obtain a dispersion in which the core-shell polymer particles were dispersed.
- This dispersion was transferred to a 1 L tank with a jacket and a stirrer (a stirrer equipped with an anchor blade having an inner diameter of 100 mm and an airfoil of 90 mm), and PM was added so that the core-shell polymer particles / PM would be 30/70 weight ratio. Mixed.
- the jacket temperature is set to 70 ° C.
- the degree of vacuum is set to 200 torr
- the content of the core-shell polymer particle concentration reaches 30% by weight.
- MEK, water and a small amount of PM were distilled off. Nitrogen gas was introduced into the tank to return the internal pressure to atmospheric pressure, and a mixed solvent (MEK / PM) composition of core-shell polymer particles was obtained.
- Table 4 shows the composition, viscosity, and particle diameter of the core-shell polymer particles of the obtained solvent composition.
- the solvent composition of Comparative Example 1 had a core-shell polymer particle concentration exceeding 40% by weight, had a high viscosity, and was difficult to handle.
- the solvent compositions of Comparative Examples 2 and 3 do not contain the organic solvent (B), and it can be seen that the viscosity is high even when the particle concentration is low, as compared with Examples 1 and 8.
- the solvent composition of Comparative Example 4 contains a large amount of the organic solvent (B) as the solvent, and the organic solvent (B) has a low affinity with the core-shell polymer particles. The viscosity becomes so high that it does not flow even when tilted.
- Table 5 shows the evaluation results of the interlaminar fracture toughness G1c and the flexural modulus of the copper-clad laminate obtained by using the solvent composition obtained in Example 4 or 5 or without using the solvent composition. .
- Example 9 the interlaminar fracture toughness of the copper clad laminate was improved as compared with Comparative Example 5.
- the improvement in the interlaminar fracture toughness can contribute to the suppression of defects such as cracks and delamination, and the suppression of wear and breakage of the drill bit in drilling for forming a through hole in the laminate.
- the flexural modulus was slightly decreased as compared with Comparative Example 5, whereas in Example 10 containing the core-shell polymer particles of the hard core layer, the interlaminar fracture was maintained while keeping the flexural modulus high. It can be seen that the toughness has improved.
- Example 11 Liquid bisphenol A type epoxy resin “jER828EL” (trade name, manufactured by Mitsubishi Chemical Corporation) was added to the solvent composition obtained in Example 1 so that the core-shell polymer particles / epoxy resin was in a 25/75 weight ratio. After mixing, the organic solvent was distilled off under reduced pressure at 80 ° C. and 1 torr to obtain an epoxy resin composition. The amount of volatile components in the epoxy resin composition was 4700 ppm, and the remaining MEK and DMF were 200 ppm and 3500 ppm, respectively.
- Example 12 An epoxy resin composition was obtained in the same manner as in Example 11 except that the solvent composition obtained in Example 4 was used instead of the solvent composition obtained in Example 1.
- the amount of volatile components in the epoxy resin composition was 2800 ppm, and the remaining MEK and PM were 300 ppm and 650 ppm, respectively.
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Abstract
Description
1) ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)と、極性項δpが11以上及び水素結合項δhが10以上の少なくとも一方を満たす1種以上の有機溶剤(B)とを15:85~95:5の重量比で含む有機溶剤と、1種以上のコアシェルポリマー粒子とを含み、前記コアシェルポリマー粒子の含有率が溶剤組成物の総重量に対し20~40重量%である、溶剤組成物。
2) 前記有機溶剤(A)が、トルエン、キシレン、酢酸エチル、プロピレングリコールモノメチルエーテルアセテート、アセトン、メチルエチルケトン、メチルイソブチルケトン、及びシクロヘキサノンからなる群より選択される1種以上の溶剤であり、
前記有機溶剤(B)が、ブタノール、メチルセロソルブ、ブチルセロソルブ、プロピレングリコールモノメチルエーテル、ジメチルホルムアミド、ジメチルアセトアミド、ジメチルスルホキシド、及びN-メチル-2-ピロリドンからなる群より選択される1種以上の溶剤である、前記1)に記載の溶剤組成物。
3) 前記溶剤組成物中の前記コアシェルポリマー粒子の体積平均粒子径が、10nm~500nmである、前記1)または2)に記載の溶剤組成物。
4) 前記コアシェルポリマー粒子のコア層が、
(i)ジエン系単量体及び(メタ)アクリル酸エステル系単量体からなる群より選ばれる1種以上の単量体50重量%以上100重量%以下、及び、他の共重合可能なビニル単量体50重量%未満から構成されるゴム弾性体、
(ii)ポリシロキサンゴム系弾性体、
(iii)芳香族ビニル架橋体、または
(iv)前記(i)~(iii)のうち2種以上の混合物からなり、
前記他の共重合可能なビニル単量体が、芳香族ビニル化合物、シアン化ビニル化合物、不飽和カルボン酸誘導体、(メタ)アクリル酸アミド誘導体、及び、マレイミド誘導体からなる群より選ばれる1種以上である、前記1~3のいずれか1項に記載の溶剤組成物。
5) 前記コアシェルポリマー粒子の30重量%以上がスチレンから構成される、前記1)~4)のいずれかに記載の溶剤組成物。
6) 前記コアシェルポリマー粒子が、前記コアシェルポリマー粒子100重量%中、架橋性単量体0.2~7重量%で共重合されている、前記1)~5)のいずれか1項に記載の溶剤組成物。
7) 樹脂と、前記1)~6)のいずれか1項に記載の溶剤組成物を含む、ワニス。
8) 樹脂と、前記1)~6)のいずれか1項に記載の溶剤組成物を混合する工程を含む、ワニスの製造方法。
9) 樹脂と、前記1)~6)のいずれか1項に記載の溶剤組成物を混合する工程、該樹脂と前記コアシェルポリマー粒子を含む組成物を繊維に含浸させる工程、及び、該樹脂を半硬化させる工程を含む、プリプレグの製造方法。
10) 樹脂と、前記1)~6)のいずれか1項に記載の溶剤組成物を混合する工程、該樹脂と前記コアシェルポリマー粒子を含む組成物を繊維に含浸させる工程、該樹脂を半硬化させてプリプレグを得る工程、及び、該プリプレグを銅箔と積層し硬化させる工程を含む、銅張積層板の製造方法。
11) 樹脂と、前記1)~6)のいずれか1項に記載の溶剤組成物を混合する工程、該樹脂と前記コアシェルポリマー粒子を含む組成物を繊維に含浸させる工程、該樹脂を半硬化させてプリプレグを得る工程、該プリプレグを銅箔と積層し硬化させて銅張積層板を得る工程、及び、該銅張積層板に回路を形成する工程を含む、プリント配線板の製造方法。
12) 樹脂と、前記1)~6)のいずれか1項に記載の溶剤組成物を混合する工程を含む、塗料の製造方法。
13) 樹脂と、前記1)~6)のいずれか1項に記載の溶剤組成物を混合する工程を含む、接着剤の製造方法。
14) 樹脂と、前記1)~6)のいずれか1項に記載の溶剤組成物を混合する工程、該樹脂と前記コアシェルポリマー粒子を含む組成物を無機材料と複合させる工程、及び、該樹脂を硬化させる工程を含む、複合材料の製造方法。
15) 樹脂と、前記1)~6)のいずれか1項に記載の溶剤組成物を混合する工程、及び、該樹脂を硬化させる工程を含む、鋳物の製造方法。
16) 前記7)に記載のワニスから前記有機溶剤(A)および/または前記有機溶剤(B)を蒸発させる工程を含む、樹脂組成物の製造方法。
17) 樹脂100重量部およびコアシェルポリマー粒子5~70重量部を含有する樹脂組成物であって、
前記樹脂組成物中の揮発分量が合計5000ppm以下であり、
ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)を10ppm以上含み、かつ、極性項δpが11以上及び水素結合項δhが10以上の少なくとも一方を満たす1種以上の有機溶剤(B)を10ppm以上含む、樹脂組成物。
18) 樹脂が熱硬化性樹脂である、前記17)に記載の樹脂組成物。
19) 樹脂がエポキシ樹脂である、前記17)に記載の樹脂組成物。
20) 前記有機溶剤(A)が、トルエン、キシレン、酢酸エチル、プロピレングリコールモノメチルエーテルアセテート、アセトン、メチルエチルケトン、メチルイソブチルケトン、及びシクロヘキサノンからなる群より選択される1種以上の溶剤であり、
前記有機溶剤(B)が、ブタノール、メチルセロソルブ、ブチルセロソルブ、プロピレングリコールモノメチルエーテル、ジメチルホルムアミド、ジメチルアセトアミド、ジメチルスルホキシド、及びN-メチル-2-ピロリドンからなる群より選択される1種以上の溶剤である、前記17)~19)のいずれか1項に記載の樹脂組成物。
21) 前記樹脂組成物中の前記コアシェルポリマー粒子の体積平均粒子径が、10nm~500nmである、前記17)~20)のいずれか1項に記載の樹脂組成物。
22) 前記17)~21)のいずれか1項に記載の樹脂組成物の硬化物。
23) コアシェルポリマー粒子が水媒体中に分散されてなる水媒体分散液を、ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)と混合する工程、
前記水媒体分散液と前記有機溶剤(A)との混合物と、水を混合して、粒子緩凝集体を得る工程、
前記粒子緩凝集体を液相から分離し、回収する工程、
前記粒子緩凝集体と、ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)を混合して粒子分散液を得る工程、
該粒子分散液を、極性項δpが11以上及び水素結合項δhが10以上の少なくとも一方を満たす1種以上の有機溶剤(B)と混合する工程、
得られた混合物中の、有機溶剤(A)、有機溶剤(B)および水からなる群より選択される一種以上の物質を蒸発させる工程、
とを含む、
有機溶剤(A)と有機溶剤(B)とを15:85~95:5の重量比で含み、前記コアシェルポリマー粒子の含有率が溶剤組成物の総重量に対し20~40重量%である溶剤組成物の製造方法。
24) 前記23)に記載の製造方法によって溶剤組成物を製造した後、樹脂と該溶剤組成物を混合する工程を含む、ワニスの製造方法。
25) 前記24)に記載の製造方法によってワニスを製造した後、該ワニスから前記有機溶剤(A)および/または前記有機溶剤(B)を蒸発させる工程を含む、樹脂組成物の製造方法。
26) 前記25)に記載の製造方法によって樹脂組成物を製造する工程、該樹脂組成物またはその希釈物を繊維に含浸させる工程、及び、該樹脂を半硬化させる工程を含む、プリプレグの製造方法。
27) 前記26)に記載の製造方法によってプリプレグを製造する工程、及び、該プリプレグを銅箔と積層し硬化させる工程を含む、銅張積層板の製造方法。
28) 前記27)に記載の製造方法によって銅張積層板を製造する工程、及び、該銅張積層板に回路を形成する工程を含む、プリント配線板の製造方法。
29) 前記25)に記載の製造方法によって樹脂組成物を製造する工程を含む、塗料の製造方法。
30) 前記25)に記載の製造方法によって樹脂組成物を製造する工程を含む、接着剤の製造方法。
31) 前記25)に記載の製造方法によって樹脂組成物を製造する工程、該樹脂組成物またはその希釈物を無機材料と複合させる工程、及び、該樹脂を硬化させる工程を含む、複合材料の製造方法。
32) 前記25)に記載の製造方法によって樹脂組成物を製造する工程、及び、該樹脂を硬化させる工程を含む、鋳物の製造方法。
33)前記17)の樹脂組成物を含有する無溶剤型塗料。
34)前記17)の樹脂組成物を含有する無溶剤型接着剤。
35)前記17)の樹脂組成物を含有するプリプレグ。
36)前記17)の樹脂組成物の硬化物を含有するプリプレグ。
37)前記17)の樹脂組成物を含有する複合材料。
38)前記17)の樹脂組成物の硬化物を含有する複合材料。
39)前記17)の樹脂組成物の硬化物を含有する銅張積層板。
40)前記17)の樹脂組成物の硬化物を含有するプリント配線板。
41)ワニスの原料である、前記1)~6)のいずれかに記載の溶剤組成物。
42)プリプレグの原料である、前記1)~6)のいずれかに記載の溶剤組成物。
43)銅張積層板の原料である、前記1)~6)のいずれかに記載の溶剤組成物。
44)プリント配線板の原料である、前記1)~6)のいずれかに記載の溶剤組成物。
45)塗料の原料である、前記1)~6)のいずれかに記載の溶剤組成物。
46)複合材料の原料である、前記1)~6)のいずれかに記載の溶剤組成物。
47)鋳物の原料である、前記1)~6)のいずれかに記載の溶剤組成物。
48)接着剤の原料である、前記1)~6)のいずれかに記載の溶剤組成物。
49)エポキシ樹脂組成物の硬化物を含有する銅張積層板であって、該硬化物は、ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)を1ppm以上含み、かつ、極性項δpが11以上及び水素結合項δhが10以上の少なくとも一方を満たす1種以上の有機溶剤(B)を1ppm以上含み、さらに、前記硬化物中の揮発分量が合計100ppm以下である、銅張積層板。
50)エポキシ樹脂組成物の硬化物を含有するプリント配線板であって、該硬化物は、ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)を1ppm以上含み、かつ、極性項δpが11以上及び水素結合項δhが10以上の少なくとも一方を満たす1種以上の有機溶剤(B)を1ppm以上含み、さらに、前記硬化物中の揮発分量が合計100ppm以下である、プリント配線板。
本発明の溶剤組成物は、ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)と、極性項δpが11以上及び水素結合項δhが10以上の少なくとも一方を満たす1種以上の有機溶剤(B)とを15:85~95:5の重量比で含む有機溶剤と、1種以上のコアシェルポリマー粒子とを含み、コアシェルポリマー粒子の含有率が溶剤組成物の総重量に対し20~40重量%であることを特徴とする。
本発明の溶剤組成物は、溶剤組成物中にコアシェルポリマー粒子が体積平均粒子径として10nm~500nmで存在することが好ましい。該体積平均粒子径は、30nm~350nmであることがより好ましく、60nm~250nmであることがさらに好ましく、80nm~150nmであることが最も好ましい。体積平均粒子径が上記範囲内であれば、コアシェルポリマー粒子の凝集体が溶剤組成物中に存在していてもよいが、コアシェルポリマー粒子は、1次粒子の状態で溶剤組成物中に分散していることが好ましい。体積平均粒子径が10nm未満、または500nmよりも大きい場合は、コアシェルポリマー粒子による高靭化効果が小さくなる場合がある。プリント配線板や塗料の色調への影響を抑制できる観点から、コアシェルポリマー粒子の体積平均粒子径は、250nm以下であることがより好ましく、150nm以下であることがさらに好ましい。体積平均粒子径は、例えばマイクロトラックUPA(日機装社製)を用いて測定することができる。
本発明の溶剤組成物を製造するための方法は特に限定されないが、以下に、該製造方法の一実施形態を具体的に説明する。本実施形態によると、溶剤組成物の製造方法は、順に、コアシェルポリマー粒子を含む水媒体分散液(好ましくは、乳化重合により得られた水性ラテックス)からコアシェルポリマー粒子緩凝集体を得る第1工程、前記コアシェルポリマー粒子緩凝集体から、前記コアシェルポリマー粒子と有機溶剤(A)を含む粒子分散液を得る第2工程、前記粒子分散液を有機溶剤(B)と混合した後、有機溶剤及び/又は水を蒸発させる第3工程を含むものであってよい。
第1工程は、コアシェルポリマー粒子が水媒体中に分散されてなる水媒体分散液を、有機溶剤(A)と混合する操作を含む。有機溶剤(A)と混合することによって、後述する水の添加によって相分離が生じて、再分散が可能な程度の緩やかな凝集状態のコアシェルポリマー粒子緩凝集体を形成することが可能となる。
第2工程は、第1工程で得たコアシェルポリマー粒子緩凝集体を液相から分離、回収する操作を含む。かかる操作によって、コアシェルポリマー粒子から乳化剤等の水溶性の夾雑物を分離、除去することができる。
第3工程は、第2工程で得たコアシェルポリマー粒子分散液に、有機溶剤(B)を混合する操作と、有機溶剤及び/又は水を蒸発させる操作を含む。該蒸発によって、前記コアシェルポリマー粒子分散液に含まれていた水の除去、最終の溶剤組成物における粒子濃度の調整、第1工程および第2工程で使用した有機溶剤(A)の一部の、最終の溶剤組成物に含まれるべき有機溶剤(B)への置換などを行なうことができる。このような第3工程によって、コアシェルポリマー粒子が高濃度で安定に分散しながら、低粘度である本発明の溶剤組成物を得ることができる。
本発明のワニスは、本発明の溶剤組成物と樹脂との混合物である。本発明のワニスの成分となる樹脂としては、例えば、硬化性または重合性モノマー、硬化性または重合性オリゴマー、これらを硬化させてなる樹脂、熱可塑性ポリマー等が挙げられる。これらは1種を使用してもよいし、2種以上を組み合わせて使用してもよい。前記樹脂が、硬化性または重合性モノマー、及び硬化性または重合性オリゴマーからなる群より選択される1種以上であり、かつ、常温で液体である場合には、これらが硬化または重合することで、優れた靭性を有する硬化物が種々の形状で得られるので特に好ましい。
本発明のワニスから、有機溶剤(A)および/または有機溶剤(B)を蒸発させることにより、揮発分の少ない樹脂組成物を製造することができる。揮発分の少ない樹脂組成物としては、例えば、樹脂組成物中の揮発分量が合計5000ppm以下である樹脂組成物が好ましい。本発明における揮発分量が合計5000ppm以下である樹脂組成物は、ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である有機溶剤(A)を10ppm以上含み、かつ、極性項δpが11以上及び水素結合項δhが10以上の少なくとも一方を満たす有機溶剤(B)を10ppm以上含むものであることが好ましい。
本発明の溶剤組成物、ワニス、及び、揮発分の少ない樹脂組成物または微量溶剤ミックス樹脂組成物は、プリプレグ、銅張積層板、プリント配線板、塗料(溶剤を含む塗料でも無溶剤型塗料でもよい)、複合材料、鋳物、接着剤(溶剤を含む接着剤でも無溶剤型接着剤でもよい)の原料として好適に使用することができ、その他の成形材料、封止材料、絶縁材料、充填材、光造型材料、光学部品、インキ、トナーの原料としても使用することができる。なお、ここでいう鋳物は金属製品に限定されず、主としてマトリックスが樹脂である成形体を意味している。特に、プリント配線板の最外層(ソルダーレジスト)、多層プリント配線板の内層(ビルドアップ材料、プリプレグ材料)、又は、FPC用接着剤(FPC:フレキシブル配線板)に好適に使用される。
・コアシェルポリマー粒子が水媒体中に分散されてなる水媒体分散液を、ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)と混合する工程、
・前記水媒体分散液と前記有機溶剤(A)との混合物と、水を混合して、粒子緩凝集体を得る工程、
・前記粒子緩凝集体を液相から分離し、回収する工程、
・前記粒子緩凝集体に、ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)を混合して粒子分散液を得る工程、
・該粒子分散液を、極性項δpが11以上及び水素結合項δhが10以上の少なくとも一方を満たす1種以上の有機溶剤(B)と混合する工程、
・得られた混合物中の、有機溶剤(A)、有機溶剤(B)および水からなる群より選択される一種以上の物質を蒸発させる工程。
溶剤組成物約1gを精秤した後、熱風乾燥機内にて設定温度120℃で30分間加熱し、溶剤揮発後の質量を測定した。溶剤揮発後の質量をコアシェルポリマー粒子の質量として、これを溶剤組成物の質量で除して、溶剤組成物中のコアシェルポリマー粒子濃度を算出した。
粒子径測定装置(日機装製Microtrac UPA)を用いて、溶剤組成物に含まれるコアシェルポリマー粒子の体積平均粒子径を測定した。ただし、溶剤組成物をメチルエチルケトンで希釈したものを測定試料として用いた。測定は、メチルエチルケトンの屈折率、及びそれぞれのコアシェルポリマー粒子の屈折率を入力し、計測時間600秒、Signal Levelが0.6~0.8の範囲内になるように試料濃度を調整して行った。
ガスクロマトグラフィー(島津製作所製GC-2014)で溶剤組成物中の溶剤比率を測定した。
溶剤組成物が入っている容器を傾けて、溶剤組成物が流動するものについて、BROOKFIELD社製デジタル粘度計DV-II+Pro型を用いて、スピンドルCPE-41、測定温度25℃、Shear Rateが1(1/s)時の粘度を測定した。容器を傾けても溶剤組成物が流動しないものは高粘度と評価した。
溶剤組成物を乾燥して得たコアシェルポリマー粒子残渣を熱プレスして縦100mm×横2mm×厚み1mmの評価シートを作製し、空洞共振機装置(関東電子応用開発製)を用いて、周波数10GHzでの誘電正接を測定した。
エポキシ樹脂組成物を170℃、20分の条件で加熱し、加熱前後の重量を比較することでエポキシ樹脂組成物中の揮発分量を測定した。
ガスクロマトグラフィー(島津製作所製GC-2014)でエポキシ樹脂組成物中の溶剤量を測定した。
耐圧重合機中に、水200重量部、リン酸三カリウム0.03重量部、エチレンジアミン四酢酸二ナトリウム(EDTA)0.002重量部、硫酸第一鉄・7水和塩0.001重量部、及び、ドデシルベンゼンスルホン酸ナトリウム(SDBS)1.55重量部を投入し、撹拌しつつ十分に窒素置換を行なって酸素を除いた後、ブタジエン(Bd)100重量部を系中に投入し、45℃に昇温した。パラメンタンハイドロパーオキサイド(PHP)0.03重量部、続いてナトリウムホルムアルデヒドスルホキシレート(SFS)0.10重量部を投入し重合を開始した。重合開始から3、5、7時間目それぞれに、パラメンタンハイドロパーオキサイド(PHP)0.025重量部を投入した。また、重合開始から4、6、8時間目それぞれに、EDTA0.0006重量部、及び硫酸第一鉄・7水和塩0.003重量部を投入した。重合開始から15時間目に減圧下残存モノマーを脱揮除去して重合を終了し、ポリブタジエンゴムを主成分とするポリブタジエンゴムラテックス(R-1)を得た。得られたラテックスに含まれるポリブタジエンゴム粒子の体積平均粒子径は80nmであった。
100L耐圧重合機中に、水200重量部、リン酸三カリウム0.03重量部、リン酸二水素カリウム0.25重量部、エチレンジアミン4酢酸0.002重量部、硫酸第一鉄0.001重量部およびドデシルベンゼンスルホン酸ナトリウム1.5重量部を投入し、攪拌しつつ十分に窒素置換を行なって酸素を除いた後、ブタジエン75重量部およびスチレン25重量部を系中に投入し、45℃に昇温した。パラメンタンハイドロパーオキサイド0.015重量部、続いてナトリウムホルムアルデヒドスルホキシレート0.04重量部を投入し重合を開始した。重合開始から4時間目に、パラメンタンハイドロパーオキサイド0.01重量部、エチレンジアミン4酢酸0.0015重量部および硫酸第一鉄0.001重量部を投入した。重合開始から10時間目に減圧下残存モノマーを脱揮除去し、重合を終了した。得られたスチレン-ブタジエンゴムラテックス(R-3)の体積平均粒径は100nmであった。
温度計、撹拌機、還流冷却器、窒素流入口、及びモノマーの添加装置を有するガラス製反応器に、前記スチレン-ブタジエンゴムラテックス(R-3)241重量部(スチレン-ブタジエンゴム粒子80重量部を含む)、及び、水65重量部を仕込み、窒素置換を行いながら60℃で撹拌した。EDTA0.004重量部、硫酸第一鉄・7水和塩0.001重量部、及びSFS0.2重量部を加えた後、St11.7重量部、AN4.3重量部、GMA4重量部およびTBP0.08重量部の混合物を110分間かけて連続的に添加した。TBP0.04重量部を添加し、さらに1時間撹拌を続けて重合を完結させ、コアシェルポリマー粒子を含む水性ラテックス(L-3)を得た。得られた水性ラテックスに含まれるコアシェルポリマー粒子の体積平均粒子径は110nmであった。
温度計、撹拌機、還流冷却器、窒素流入口、及びモノマーの添加装置を有するガラス製反応器に、前記スチレン-ブタジエンゴムラテックス(R-3)241重量部(スチレン-ブタジエンゴム粒子80重量部を含む)、及び、水65重量部を仕込み、窒素置換を行いながら60℃で撹拌した。EDTA0.004重量部、硫酸第一鉄・7水和塩0.001重量部、及びSFS0.2重量部を加えた後、イソシアヌル酸トリアリル(TAIC)2重量部、及び、クメンハイドロパーオキシド(CHP)0.07重量部を添加し60分間攪拌した。St11.7重量部、AN4.3重量部、GMA4重量部およびTBP0.08重量部の混合物を110分間かけて連続的に添加した。TBP0.04重量部を添加し、さらに1時間撹拌を続けて重合を完結させ、コアシェルポリマー粒子を含む水性ラテックス(L-4)を得た。得られた水性ラテックスに含まれるコアシェルポリマー粒子の体積平均粒子径は110nmであった。
温度計、撹拌機、還流冷却器、窒素流入口、及び、モノマーと乳化剤の添加装置を有するガラス製反応器に、脱イオン水182重量部、EDTA0.006重量部、硫酸第一鉄・7水和塩0.0015重量部、SFS0.2重量部、及びSDBS0.15重量部を仕込み、窒素気流中で撹拌しながら60℃に昇温した。次に、そこに、St75重量部、アリルメタクリレート(ALMA)1.56重量部、及びCHP0.024重量部の混合物を、200分間かけて連続的に滴下した。前記混合物添加終了から0.5時間撹拌を続けて重合を完結し、ポリマー微粒子の架橋ポリマー層を含む水性ラテックス(R-4)を得た。引き続き、そこに、MMA20重量部、GMA5重量部、及びCHP0.05重量部の混合物を200分間かけて連続的に添加した。添加終了後、CHP0.04重量部を添加し、さらに1時間撹拌を続けて重合を完結させ、コアシェルポリマー粒子を含む水性ラテックス(L-5)を得た。得られた水性ラテックスに含まれるコアシェルポリマー粒子の体積平均粒子径は122nmであった。
30℃の1L混合槽にメチルエチルケトン(MEK)126重量部を仕込み、撹拌しながら、コアシェルポリマー粒子の水性ラテックス(L-1)を126重量部投入した。均一に混合後、水200重量部を80重量部/分の供給速度で投入した。供給終了後、速やかに撹拌を停止し、浮上性のコアシェルポリマー粒子緩凝集体を含むスラリー液を得た。
実施例1の水性ラテックス(L-1)を(L-2)に変更した以外は実施例1と同様にしてコアシェルポリマー粒子の混合溶剤(MEK/DMF)組成物を得た。水性ラテックス(L-2)に含まれるコアシェルポリマー粒子の誘電正接は0.011であった。得られた溶剤組成物の組成、粘度、及び、コアシェルポリマー粒子の粒子径を表2に示す。
実施例1の水性ラテックス(L-1)を(L-3)に、DMFをプロピレングリコールモノメチルエーテル(PM)に変更し、最終溶剤組成物のコアシェルポリマー粒子濃度を38重量%とした以外は実施例1と同様にしてコアシェルポリマー粒子の混合溶剤(MEK/PM)組成物を得た。水性ラテックス(L-3)に含まれるコアシェルポリマー粒子の誘電正接は0.009であった。得られた溶剤組成物の組成、粘度、及び、コアシェルポリマー粒子の粒子径を表2に示す。
実施例1の水性ラテックス(L-1)を(L-4)に、DMFをプロピレングリコールモノメチルエーテル(PM)に変更し、最終溶剤組成物のコアシェルポリマー粒子濃度を38重量%とした以外は実施例1と同様にしてコアシェルポリマー粒子の混合溶剤(MEK/PM)組成物を得た。水性ラテックス(L-4)に含まれるコアシェルポリマー粒子の誘電正接は0.007であった。得られた溶剤組成物の組成、粘度、及び、コアシェルポリマー粒子の粒子径を表2に示す。
実施例1の水性ラテックス(L-1)を(L-5)に、DMFをプロピレングリコールモノメチルエーテル(PM)に変更した以外は実施例1と同様にしてコアシェルポリマー粒子の混合溶剤(MEK/PM)組成物を得た。水性ラテックス(L-5)に含まれるコアシェルポリマー粒子の誘電正接はそれぞれ0.005であった。得られた溶剤組成物の組成、粘度、及び、コアシェルポリマー粒子の粒子径を表2に示す。
実施例4のPMをキシレン/PM=50/50重量比の混合溶剤に変更し、最終溶剤組成物のコアシェルポリマー粒子濃度を30重量%とした以外は実施例4と同様にしてコアシェルポリマー粒子の混合溶剤(MEK,キシレン/PM)組成物を得た。得られた溶剤組成物の組成、粘度、及び、コアシェルポリマー粒子の粒子径を表3に示す。
実施例4のPMをプロピレングリコールモノメチルエーテルアセテート(PMA)/PM=70/30重量比の混合溶剤に変更し、最終溶剤組成物のコアシェルポリマー粒子濃度を30重量%とした以外は実施例4と同様にしてコアシェルポリマー粒子の混合溶剤(MEK,PMA/PM)組成物を得た。得られた溶剤組成物の組成、粘度、及び、コアシェルポリマー粒子の粒子径を表3に示す。
最終溶剤組成物のコアシェルポリマー粒子濃度を35重量%とした以外は実施例1と同様にしてコアシェルポリマー粒子の混合溶剤(MEK/DMF)組成物を得た。得られた溶剤組成物の組成、粘度、及び、コアシェルポリマー粒子の粒子径を表3に示す。
最終溶剤組成物のコアシェルポリマー粒子濃度を41重量%とした以外は実施例1と同様にしてコアシェルポリマー粒子の混合溶剤(MEK/DMF)組成物を得た。得られた溶剤組成物の組成、粘度、及び、コアシェルポリマー粒子の粒子径を表4に示す。
実施例1のDMFをMEKに、減圧度を350torrに変更し、最終溶剤組成物のコアシェルポリマー粒子濃度を27重量%とした以外は実施例1と同様にしてコアシェルポリマー粒子の溶剤(MEK)組成物を得た。得られた溶剤組成物の組成、粘度、及び、コアシェルポリマー粒子の粒子径を表4に示す。
実施例1のDMFをPMAに変更した以外は実施例1と同様にしてコアシェルポリマー粒子の混合溶剤(MEK,PMA)組成物を得た。なお、該混合溶剤組成物中の両溶剤は共に、有機溶剤(A)に該当する。得られた溶剤組成物の組成、粘度、及び、コアシェルポリマー粒子の粒子径を表4に示す。
30℃の1L混合槽にメチルエチルケトン(MEK)126重量部を仕込み、撹拌しながら、コアシェルポリマー粒子の水性ラテックス(L-3)を126重量部投入した。均一に混合後、水200重量部を80重量部/分の供給速度で投入した。供給終了後、速やかに撹拌を停止し、浮上性のコアシェルポリマー粒子緩凝集体を含むスラリー液を得た。
(7)銅張積層板の靭性評価
エポキシ樹脂(DIC製エピクロン153-60M)、硬化剤(DIC製フェノライトTD-2090-60M)、硬化促進剤(四国化成製キュアゾール2E4MZ)、実施例4または5で得られた溶剤組成物、及び、溶融シリカ(アドマテックス製アドマファイン1.5μm)を表5に記載した配合割合で混合してワニスを得た。このワニスを7628E-ガラスのガラスクロスに含浸し、140℃、5分で乾燥し、プリプレグを得た。このプリプレグを8枚重ね、35μm厚の銅箔を上下に配置し、プリプレグ4枚目上の隅に2cm長さで50μm厚のテフロン(登録商標)シートを挟んだものを、圧力3MPa、190℃で60分プレスして、幅20mm、長さ100mm、厚み1.7mmの銅張積層板を得た。靭性評価として、JIS K 7628に従って、銅張積層板の層間破壊靭性G1cを測定した。
上記銅張積層板を使用し、JIS K 7017に従って銅張積層板の曲げ弾性率を測定した。
実施例4または5で得られた溶剤組成物を使用し、または溶剤組成物を使用せずに得られた銅張積層板について、層間破壊靱性G1cおよび曲げ弾性率の評価結果を表5に示す。
実施例1で得られた溶剤組成物に、液状ビスフェノールA型エポキシ樹脂「jER828EL」(商品名、三菱化学株式会社製)を、コアシェルポリマー粒子/エポキシ樹脂が25/75重量比となるように添加、混合した後、80℃、1torrの条件で有機溶剤を減圧留去し、エポキシ樹脂組成物を得た。該エポキシ樹脂組成物中の揮発分量は4700ppm、残存するMEKおよびDMFはそれぞれ200ppm、3500ppmであった。
実施例1で得られた溶剤組成物の代わりに実施例4で得られた溶剤組成物を使用した以外は実施例11と同様にしてエポキシ樹脂組成物を得た。該エポキシ樹脂組成物中の揮発分量は2800ppm、残存するMEKおよびPMはそれぞれ300ppm、650ppmであった。
Claims (32)
- ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)と、極性項δpが11以上及び水素結合項δhが10以上の少なくとも一方を満たす1種以上の有機溶剤(B)とを15:85~95:5の重量比で含む有機溶剤と、1種以上のコアシェルポリマー粒子とを含み、前記コアシェルポリマー粒子の含有率が溶剤組成物の総重量に対し20~40重量%である、溶剤組成物。
- 前記有機溶剤(A)が、トルエン、キシレン、酢酸エチル、プロピレングリコールモノメチルエーテルアセテート、アセトン、メチルエチルケトン、メチルイソブチルケトン、及びシクロヘキサノンからなる群より選択される1種以上の溶剤であり、
前記有機溶剤(B)が、ブタノール、メチルセロソルブ、ブチルセロソルブ、プロピレングリコールモノメチルエーテル、ジメチルホルムアミド、ジメチルアセトアミド、ジメチルスルホキシド、及びN-メチル-2-ピロリドンからなる群より選択される1種以上の溶剤である、請求項1に記載の溶剤組成物。 - 前記溶剤組成物中の前記コアシェルポリマー粒子の体積平均粒子径が、10nm~500nmである、請求項1または2に記載の溶剤組成物。
- 前記コアシェルポリマー粒子のコア層が、
(i)ジエン系単量体及び(メタ)アクリル酸エステル系単量体からなる群より選ばれる1種以上の単量体50重量%以上100重量%以下、及び、他の共重合可能なビニル単量体50重量%未満から構成されるゴム弾性体、
(ii)ポリシロキサンゴム系弾性体、
(iii)芳香族ビニル架橋体、または
(iv)前記(i)~(iii)のうち2種以上の混合物からなり、
前記他の共重合可能なビニル単量体が、芳香族ビニル化合物、シアン化ビニル化合物、不飽和カルボン酸誘導体、(メタ)アクリル酸アミド誘導体、及び、マレイミド誘導体からなる群より選ばれる1種以上である、請求項1~3のいずれか1項に記載の溶剤組成物。 - 前記コアシェルポリマー粒子の30重量%以上がスチレンから構成される、請求項1~4のいずれかに記載の溶剤組成物。
- 前記コアシェルポリマー粒子が、前記コアシェルポリマー粒子100重量%中、架橋性単量体0.2~7重量%で共重合されている、請求項1~5のいずれか1項に記載の溶剤組成物。
- 樹脂と、請求項1~6のいずれか1項に記載の溶剤組成物を含む、ワニス。
- 樹脂と、請求項1~6のいずれか1項に記載の溶剤組成物を混合する工程を含む、ワニスの製造方法。
- 樹脂と、請求項1~6のいずれか1項に記載の溶剤組成物を混合する工程、該樹脂と前記コアシェルポリマー粒子を含む組成物を繊維に含浸させる工程、及び、該樹脂を半硬化させる工程を含む、プリプレグの製造方法。
- 樹脂と、請求項1~6のいずれか1項に記載の溶剤組成物を混合する工程、該樹脂と前記コアシェルポリマー粒子を含む組成物を繊維に含浸させる工程、該樹脂を半硬化させてプリプレグを得る工程、及び、該プリプレグを銅箔と積層し硬化させる工程を含む、銅張積層板の製造方法。
- 樹脂と、請求項1~6のいずれか1項に記載の溶剤組成物を混合する工程、該樹脂と前記コアシェルポリマー粒子を含む組成物を繊維に含浸させる工程、該樹脂を半硬化させてプリプレグを得る工程、該プリプレグを銅箔と積層し硬化させて銅張積層板を得る工程、及び、該銅張積層板に回路を形成する工程を含む、プリント配線板の製造方法。
- 樹脂と、請求項1~6のいずれか1項に記載の溶剤組成物を混合する工程を含む、塗料の製造方法。
- 樹脂と、請求項1~6のいずれか1項に記載の溶剤組成物を混合する工程を含む、接着剤の製造方法。
- 樹脂と、請求項1~6のいずれか1項に記載の溶剤組成物を混合する工程、該樹脂と前記コアシェルポリマー粒子を含む組成物を無機材料と複合させる工程、及び、該樹脂を硬化させる工程を含む、複合材料の製造方法。
- 樹脂と、請求項1~6のいずれか1項に記載の溶剤組成物を混合する工程、及び、該樹脂を硬化させる工程を含む、鋳物の製造方法。
- 請求項7に記載のワニスから前記有機溶剤(A)および/または前記有機溶剤(B)を蒸発させる工程を含む、樹脂組成物の製造方法。
- 樹脂100重量部およびコアシェルポリマー粒子5~70重量部を含有する樹脂組成物であって、
前記樹脂組成物中の揮発分量が合計5000ppm以下であり、
ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)を10ppm以上含み、かつ、極性項δpが11以上及び水素結合項δhが10以上の少なくとも一方を満たす1種以上の有機溶剤(B)を10ppm以上含む、樹脂組成物。 - 樹脂が熱硬化性樹脂である、請求項17に記載の樹脂組成物。
- 樹脂がエポキシ樹脂である、請求項17に記載の樹脂組成物。
- 前記有機溶剤(A)が、トルエン、キシレン、酢酸エチル、プロピレングリコールモノメチルエーテルアセテート、アセトン、メチルエチルケトン、メチルイソブチルケトン、及びシクロヘキサノンからなる群より選択される1種以上の溶剤であり、
前記有機溶剤(B)が、ブタノール、メチルセロソルブ、ブチルセロソルブ、プロピレングリコールモノメチルエーテル、ジメチルホルムアミド、ジメチルアセトアミド、ジメチルスルホキシド、及びN-メチル-2-ピロリドンからなる群より選択される1種以上の溶剤である、請求項17~19のいずれか1項に記載の樹脂組成物。 - 前記樹脂組成物中の前記コアシェルポリマー粒子の体積平均粒子径が、10nm~500nmである、請求項17~20のいずれか1項に記載の樹脂組成物。
- 請求項17~21のいずれか1項に記載の樹脂組成物の硬化物。
- コアシェルポリマー粒子が水媒体中に分散されてなる水媒体分散液を、ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)と混合する工程、
前記水媒体分散液と前記有機溶剤(A)との混合物と、水を混合して、粒子緩凝集体を得る工程、
前記粒子緩凝集体を液相から分離し、回収する工程、
前記粒子緩凝集体と、ハンセン溶解度パラメータの極性項δpが11未満かつ水素結合項δhが10未満である1種以上の有機溶剤(A)を混合して粒子分散液を得る工程、
該粒子分散液を、極性項δpが11以上及び水素結合項δhが10以上の少なくとも一方を満たす1種以上の有機溶剤(B)と混合する工程、
得られた混合物中の、有機溶剤(A)、有機溶剤(B)および水からなる群より選択される一種以上の物質を蒸発させる工程、
とを含む、
有機溶剤(A)と有機溶剤(B)とを15:85~95:5の重量比で含み、前記コアシェルポリマー粒子の含有率が溶剤組成物の総重量に対し20~40重量%である溶剤組成物の製造方法。 - 請求項23に記載の製造方法によって溶剤組成物を製造した後、樹脂と該溶剤組成物を混合する工程を含む、ワニスの製造方法。
- 請求項24に記載の製造方法によってワニスを製造した後、該ワニスから前記有機溶剤(A)および/または前記有機溶剤(B)を蒸発させる工程を含む、樹脂組成物の製造方法。
- 請求項25に記載の製造方法によって樹脂組成物を製造する工程、該樹脂組成物またはその希釈物を繊維に含浸させる工程、及び、該樹脂を半硬化させる工程を含む、プリプレグの製造方法。
- 請求項26に記載の製造方法によってプリプレグを製造する工程、及び、該プリプレグを銅箔と積層し硬化させる工程を含む、銅張積層板の製造方法。
- 請求項27に記載の製造方法によって銅張積層板を製造する工程、及び、該銅張積層板に回路を形成する工程を含む、プリント配線板の製造方法。
- 請求項25に記載の製造方法によって樹脂組成物を製造する工程を含む、塗料の製造方法。
- 請求項25に記載の製造方法によって樹脂組成物を製造する工程を含む、接着剤の製造方法。
- 請求項25に記載の製造方法によって樹脂組成物を製造する工程、該樹脂組成物またはその希釈物を無機材料と複合させる工程、及び、該樹脂を硬化させる工程を含む、複合材料の製造方法。
- 請求項25に記載の製造方法によって樹脂組成物を製造する工程、及び、該樹脂を硬化させる工程を含む、鋳物の製造方法。
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| CN201880032862.9A CN110637061B (zh) | 2017-05-19 | 2018-05-10 | 溶剂组合物及其制造方法 |
| JP2019518734A JP7164520B2 (ja) | 2017-05-19 | 2018-05-10 | 溶剤組成物およびその製造方法 |
| EP18802416.0A EP3626777B1 (en) | 2017-05-19 | 2018-05-10 | Solvent composition and production method therefor |
| US16/688,209 US11629237B2 (en) | 2017-05-19 | 2019-11-19 | Solvent composition and production method therefor |
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| WO2023053846A1 (ja) * | 2021-09-29 | 2023-04-06 | 株式会社カネカ | 金属張積層板、プリント配線板およびその製造方法 |
| US11680174B1 (en) | 2022-02-04 | 2023-06-20 | Mazda Motor Corporation | Coating composition, coating film forming method, and engine component |
| WO2025004687A1 (ja) * | 2023-06-28 | 2025-01-02 | 株式会社カネカ | エポキシ樹脂組成物、シートモールディングコンパウンド、及び成形体 |
| US12398221B2 (en) | 2018-12-27 | 2025-08-26 | Kaneka Corporation | Resin composition and use for same |
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| EP3967802B1 (en) * | 2020-09-11 | 2023-03-29 | Basf Se | Consolidated nonwoven |
| CN114317009A (zh) * | 2021-12-27 | 2022-04-12 | 山东国瓷功能材料股份有限公司 | 氧化锆分散液溶剂的选择方法 |
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Also Published As
| Publication number | Publication date |
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| TW201900760A (zh) | 2019-01-01 |
| EP3626777A4 (en) | 2021-04-07 |
| JPWO2018212064A1 (ja) | 2020-03-19 |
| CN110637061B (zh) | 2022-02-22 |
| US20200095385A1 (en) | 2020-03-26 |
| TWI761514B (zh) | 2022-04-21 |
| EP3626777A1 (en) | 2020-03-25 |
| US11629237B2 (en) | 2023-04-18 |
| EP3626777B1 (en) | 2025-04-16 |
| JP7164520B2 (ja) | 2022-11-01 |
| CN110637061A (zh) | 2019-12-31 |
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