WO2021095688A1 - 不飽和ポリエステル樹脂組成物、成形材料および成形品 - Google Patents
不飽和ポリエステル樹脂組成物、成形材料および成形品 Download PDFInfo
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- WO2021095688A1 WO2021095688A1 PCT/JP2020/041744 JP2020041744W WO2021095688A1 WO 2021095688 A1 WO2021095688 A1 WO 2021095688A1 JP 2020041744 W JP2020041744 W JP 2020041744W WO 2021095688 A1 WO2021095688 A1 WO 2021095688A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/01—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to unsaturated polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/10—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers containing more than one epoxy radical per molecule
- C08F283/105—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers containing more than one epoxy radical per molecule on to unsaturated polymers containing more than one epoxy radical per molecule
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2351/08—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
Definitions
- the present invention relates to an unsaturated polyester resin composition, a molding material and a molded product. Specifically, the present invention relates to an unsaturated polyester resin composition, a molding material containing an unsaturated polyester resin composition, and a molded product containing a cured product of the molding material. Regarding.
- molded products made of molding materials containing unsaturated polyester resins have been used in various fields because they are excellent in appearance, mechanical properties, water resistance, corrosion resistance, and the like.
- a molding material for example, a molding material containing a crystalline unsaturated polyester resin, a vinyl ester resin, Softon 1200 (calcium carbonate) as a filler, and glass fiber has been proposed (for example, the following. See Example 1 of Patent Document 1).
- Patent Document 1 contains calcium carbonate, there is a problem that the molded product obtained by using this molding material is inferior in flame retardancy.
- such a molded product may be required to have low shrinkage in order to reduce warpage and deformation.
- An object of the present invention is an unsaturated polyester resin composition for obtaining a molded product having excellent flame retardancy and mechanical strength and low shrinkage, a molding material containing the unsaturated polyester resin composition, and molding thereof.
- An object of the present invention is to provide a molded product containing a cured product of a material.
- the present invention [1] contains an unsaturated polyester, a vinyl ester, a polymerizable monomer, and aluminum hydroxide, and the vinyl ester is a reaction product of an epoxy resin and an unsaturated monobasic acid.
- the compounding ratio of the vinyl ester is 5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the unsaturated polyester, and the compounding ratio of the aluminum hydroxide to the vinyl ester (aluminum hydroxide / vinyl ester).
- the epoxy resin is a bisphenol type epoxy resin, and the epoxy equivalent of the epoxy resin is 250 g / eq or more and 350 g / eq or less.
- the epoxy resin contains the unsaturated polyester resin composition according to the above [2], which is a bisphenol A type epoxy resin.
- the present invention [4] further includes the unsaturated polyester resin composition according to any one of the above [1] to [3], which further contains a flame retardant.
- the present invention [5] includes a molding material containing the unsaturated polyester resin composition according to the above [1] to [4] and reinforcing fibers.
- the present invention [6] includes a molded product containing a cured product of the molding material according to the above [5].
- the blending ratio of the vinyl ester is a predetermined ratio with respect to the unsaturated polyester.
- the molded product obtained by using this unsaturated polyester resin composition has excellent mechanical characteristics (bending characteristics, tensile characteristics) and low shrinkage.
- the compounding ratio of aluminum hydroxide to vinyl ester is a predetermined ratio.
- the molded product obtained by using this unsaturated polyester resin composition is excellent in flame retardancy and mechanical properties (bending property, tensile property).
- the molding material of the present invention contains the unsaturated polyester resin composition of the present invention, the molded product obtained by using this molding material is excellent in flame retardancy and mechanical strength (bending property, tensile property) and low. Has contractility.
- the molded product of the present invention contains a cured product of the molding material of the present invention, it is excellent in flame retardancy and mechanical strength (bending property, tensile property) and has low shrinkage.
- the unsaturated polyester resin composition of the present invention contains an unsaturated polyester, a vinyl ester, a polymerizable monomer, and aluminum hydroxide.
- Unsaturated polyester is a polymerization product of a polybasic acid and a polyhydric alcohol.
- the polybasic acid is a polybasic acid having an ethylenically unsaturated double bond as an essential component (hereinafter referred to as a polybasic acid containing an ethylenically unsaturated bond) and an ethylenically unsaturated double bond as an optional component.
- a polybasic acid containing an ethylenically unsaturated bond an essential component
- ethylenically unsaturated bond-free polybasic acids includes polybasic acids that do not have (hereinafter referred to as ethylenically unsaturated bond-free polybasic acids).
- ethylenically unsaturated bond-containing polybasic acid examples include ethylenically unsaturated aliphatic dibasic acids such as maleic acid, fumaric acid, itaconic acid, and dihydromuconic acid, and halides of these acids, for example, these. Examples include alkyl esters of acids.
- the ethylenically unsaturated bond-containing polybasic acid includes an acid anhydride derived from the above-mentioned ethylenically unsaturated aliphatic dibasic acid, for example, maleic anhydride and the like.
- Preferred examples of the ethylenically unsaturated bond-containing polybasic acid include maleic anhydride and fumaric acid.
- ethylenically unsaturated bond-free polybasic acids include saturated aliphatic polybasic acids, saturated alicyclic polybasic acids, aromatic polybasic acids, halides of these acids, and alkyl esters of these acids. Can be mentioned.
- saturated aliphatic polybasic acids examples include oxalic acid, malonic acid, succinic acid, methyl succinic acid, 2,2-dimethylsuccinic acid, 2,3-dimethylsuccinic acid, hexyl succinic acid, glutaric acid, and 2-methylglutaric acid.
- Saturated aliphatic dibasic acids such as acid, 3-methylglutaric acid, 2,2-dimethylglutaric acid, 3,3-dimethylsuccinic acid, adipic acid, pimeric acid, suberic acid, azelaic acid, and sebacic acid can be mentioned.
- the saturated aliphatic polybasic acid includes an acid anhydride derived from the above saturated aliphatic dibasic acid, for example, oxalic anhydride, succinic anhydride and the like.
- saturated alicyclic polybasic acid examples include het acid, 1,2-hexahydrophthalic acid, 1,1-cyclobutanedicarboxylic acid, and 1,4-cyclohexanedicarboxylic acid (cis- or trans-1,4-cyclohexane).
- the saturated alicyclic polybasic acid includes an acid anhydride derived from the above saturated alicyclic dibasic acid, for example, hetic anhydride.
- aromatic dibasic acid examples include aromatic dibasic acids such as phthalic acid (orthophthalic acid, isophthalic acid, terephthalic acid), trimellitic acid, and pyromellitic acid.
- the aromatic polybasic acid includes an acid anhydride derived from the above aromatic dibasic acid, for example, phthalic anhydride and the like.
- the ethylenically unsaturated bond-free polybasic acid is preferably an aromatic polybasic acid, more preferably an aromatic dibasic acid, still more preferably a phthalic acid, and particularly preferably an isophthalic acid. Be done.
- Polybasic acid can be used alone or in combination of two or more.
- the polybasic acid preferably contains only an ethylenically unsaturated bond-containing polybasic acid.
- polyhydric alcohol examples include ethylene glycol, propylene glycol (1,2- or 1,3-propanediol or a mixture thereof), butylene glycol (1,2- or 1,3- or 1,4-butylene glycol or a mixture thereof).
- the mixture 1,5-pentanediol, 1,6-hexanediol, neopentyl glycol, 2-methyl-1,3-propanediol, 2-butyl-2-ethyl-1,3-propanediol, 3- Alcan diols such as methyl-1,5-pentanediol, 2,2,2-trimethylpentanediol, 3,3-dimethylol heptane, and aliphatics such as ether diols such as diethylene glycol, triethylene glycol, and dipropylene glycol.
- Diols such as cyclohexanediol (1,2- or 1,3- or 1,4-cyclohexanediol or a mixture thereof), cyclohexanedimethanol (1,2- or 1,3- or 1,4-cyclohexanedimethanol or Diolates thereof), cyclohexanediethanol (1,2- or 1,3- or 1,4-cyclohexanediethanol or mixtures thereof), alicyclic diols such as hydride bisphenol A, eg, ethylene oxide adducts of bisphenol A, bisphenol A.
- Dihydric alcohols such as aromatic diols such as propylene oxide adducts of bisphenol A, trivalent alcohols such as glycerin, trimethylolpropane, triisopropanolamine, eg tetramethylolmethane (pentaerythritol), diglycerin and the like.
- Examples thereof include tetravalent alcohols, for example, pentavalent alcohols such as xylitol, for example, hexavalent alcohols such as sorbitol, mannitol, alitol, igitol, darsitol, altritor, inositol, dipentaerythritol, and the like, preferably dihydric alcohols. More preferably, aliphatic diols, more preferably alcan diols, and particularly preferably propylene glycol and neopentyl glycol are mentioned.
- the polyhydric alcohol can be used alone or in combination of two or more, and the polyhydric alcohol preferably contains propylene glycol and neopentyl glycol.
- Unsaturated polyester is obtained by polycondensation (condensation polymerization) with a polybasic acid and a polyhydric alcohol.
- the equivalent ratio of the polyhydric alcohol to the polybasic acid is, for example, The mixture is blended so as to be 0.9 or more, preferably 0.95 or more, and for example, 1.2 or less, preferably 1.1 or less, and stirred under a normal pressure and nitrogen atmosphere.
- the reaction temperature is, for example, 150 ° C. or higher, preferably 190 ° C. or higher, and for example, 250 ° C. or lower, preferably 230 ° C. or lower.
- the reaction time is, for example, 8 hours or more, and for example, 30 hours or less.
- the acid value of unsaturated polyester is, for example, 20 mgKOH / g or more, preferably 25 mgKOH / g or more, and for example, less than 40 mgKOH / g, preferably. It is 30 mgKOH / g or less.
- the weight average molecular weight of the unsaturated polyester is, for example, 4000 or more, preferably 6000 or more, and for example, 25000 or less, preferably 20000 or less.
- the weight average molecular weight is a polystyrene-equivalent weight average molecular weight by GPC (gel permeation chromatography), and can be obtained by measuring unsaturated polyester by GPC.
- the blending ratio of the unsaturated polyester is, for example, 30 parts by mass or more, and for example, 60 parts by mass or less, based on 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. is there.
- Vinyl ester is a reaction product of epoxy resin and unsaturated monobasic acid.
- epoxy resin examples include bisphenol type epoxy resin and novolak type epoxy resin.
- the bisphenol type epoxy resin is a reaction product of a phenol component such as a bisphenol compound (for example, bisphenol A) and an epoxy component such as a bisphenol A type epoxy compound.
- a phenol component such as a bisphenol compound (for example, bisphenol A)
- an epoxy component such as a bisphenol A type epoxy compound.
- the bisphenol type epoxy resin is represented by the following general formula (1).
- a bisphenol type epoxy resin examples include a bisphenol A type epoxy resin, a bisphenol F type epoxy resin, a bisphenol S type epoxy resin, and the like, and a bisphenol A type epoxy resin is preferable.
- the mechanical strength (tensile property (tensile strength)) of the molded product (described later) obtained by using this unsaturated polyester resin composition can be improved.
- the epoxy equivalent of the bisphenol type epoxy resin is, for example, 100 g / eq or more, preferably 250 g / eq or more, and for example, 800 g / eq or less, preferably 400 g / eq or less, more preferably 350 g / eq. It is as follows.
- the mechanical strength (bending property, tensile property) of the molded product (described later) obtained by using this unsaturated polyester resin composition can be improved.
- the mechanical strength (bending property, tensile property) of the molded product (described later) obtained by using this unsaturated polyester resin composition can be improved.
- the above epoxy equivalents are obtained by multiplying the epoxy equivalent of each bisphenol type epoxy resin by the mass ratio of each bisphenol type epoxy resin to the total amount of the bisphenol type epoxy resins. Is the total epoxy equivalent of all bisphenol type epoxy resins.
- the bisphenol type epoxy resin is a reaction product of a phenol component and an epoxy component, but the bisphenol type epoxy resin is not limited to this, and the bisphenol type epoxy resin may be a reaction product of a phenol component and epichlorohydrin. Good.
- the bisphenol type epoxy resin is a reaction product of a phenol component and an epoxy component.
- the novolak type epoxy resin is, for example, a reaction product of a reaction product of novolak and epichlorohydrin.
- the novolak type epoxy resin is represented by the following general formula (2).
- R indicates any of -H and -CH 3 , and n indicates an integer of 0 to 5.
- a novolak type epoxy resin for example, a phenol novolac type epoxy resin ( In the above general formula (2), R indicates ⁇ H) and cresol novolac type epoxy resin (in the above general formula (2), R indicates ⁇ CH 3 ), and phenol novolac type is preferable.
- Epoxy resin can be mentioned.
- the epoxy equivalent of the novolak type epoxy resin is, for example, 100 g / eq or more, and for example, 800 g / eq or less, preferably 400 g / eq or less, more preferably 350 g / eq or less, still more preferably. It is 200 g / eq or less.
- epoxy resin can be used.
- an epoxy resin in which a chain is extended with a phenol compound can also be used.
- Unsaturated monobasic acids include, for example, monocarboxylic acids such as (meth) acrylic acid, crotonic acid, silicic acid, and sorbic acid, such as dibasic acid anhydride, and at least one unsaturated group in the molecule. Examples thereof include a reaction product with an alcohol having. Note that (meth) acrylic is synonymous with methacrylic and / or acrylic.
- dibasic acid anhydride examples include maleic anhydride, succinic anhydride, phthalic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride and the like.
- alcohols having an unsaturated group examples include hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate, pentaerythritol tri (meth) acrylate, glycerindi (meth) acrylate and the like. ..
- Unsaturated monobasic acid can be used alone or in combination of two or more.
- the unsaturated monobasic acid is preferably a monocarboxylic acid, more preferably a (meth) acrylic acid, and even more preferably a methacrylic acid.
- the epoxy resin is reacted with an unsaturated monobasic acid.
- the equivalent of the carboxyl group of the unsaturated monobasic acid to the epoxy group of the epoxy resin is, for example, 0.8 or more, preferably 1.0 or more, and for example, 1.5 or less. , Preferably 1.2 or less.
- the catalyst examples include amines such as triethylamine and benzyldimethylamine, for example, ammonium salts such as tetramethylammonium chloride and triethylbenzylammonium chloride, and imidazoles such as 2-ethyl-4-imidazole, for example, amides.
- amines such as triethylamine and benzyldimethylamine
- ammonium salts such as tetramethylammonium chloride and triethylbenzylammonium chloride
- imidazoles such as 2-ethyl-4-imidazole, for example, amides.
- pyridines for example, phosphines such as triphenylphosphine, for example, phosphonium salts such as tetraphenylphosphonium bromide, ethyltriphenylphosphonium bromide, for example, sulfonium salts, for example, sulf
- the mixing ratio of the catalyst is, for example, 0.01 part by mass or more, preferably 0.05 part by mass or more, and for example, 0.5 part by mass or less, preferably 0.5 part by mass or more, based on 100 parts by mass of the epoxy resin. It is 0.1 parts by mass or less.
- a polymerization inhibitor (described later) (preferably hydroquinone) can be added if necessary.
- the compounding ratio of the polymerization inhibitor is, for example, 0.01 part by mass or more, preferably 0.05 part by mass or more, and for example, 0.5 part by mass or less, preferably 0.5 part by mass or more, based on 100 parts by mass of the epoxy resin. Is 0.1 parts by mass or less.
- reaction temperature is, for example, 80 ° C. or higher, preferably 100 ° C. or higher, and for example, 150 ° C. or lower, preferably 130 ° C. or lower
- reaction time is, for example, 1. Time or more, preferably 2 hours or more, and for example, 10 hours or less.
- the above reaction can also be carried out following the above-mentioned reaction between the phenol component and the epoxy component.
- the acid value of vinyl ester is, for example, 1 mgKOH / g or more, 20 mgKOH / g or less, preferably 10 mgKOH / g or less.
- the blending ratio of the vinyl ester is, for example, 5 parts by mass or more, preferably 20 parts by mass or less, based on 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. Is 10 parts by mass or less.
- the blending ratio of the vinyl ester is 5 parts by mass or more, preferably 10 parts by mass or more, and for example, 20 parts by mass or less with respect to 100 parts by mass of the unsaturated polyester.
- the mechanical strength (bending property, tensile property) of the molded product (described later) obtained by using this unsaturated polyester resin composition can be improved.
- the mechanical strength (bending property, tensile property) of the molded product (described later) obtained by using this unsaturated polyester resin composition is lowered.
- the compounding ratio of the vinyl ester is not more than the above upper limit, the molded product (described later) obtained by using this unsaturated polyester resin composition has low shrinkage.
- the polymerizable monomer is a solvent for dissolving the unsaturated polyester, and is a crosslinkable monomer (reactive diluent) that can be crosslinked with the unsaturated polyester when the unsaturated polyester resin (described later) is cured.
- styrene-based monomers such as styrene, ⁇ -methylstyrene, ⁇ -ethylstyrene, vinyltoluene, t-butylstyrene, and chlorostyrene, for example, methyl (meth) acrylate, ethyl (meth) acrylate, and the like.
- (Meta) Acrylic Acid Hydroxyalkyl Esters such as (meth) Acrylic Acid 2-methoxyethyl, (Meta) Acrylic Acid 2-ethoxyethyl, etc.
- (Meta) acrylic acid aminoalkyl esters such as ethyl, (meth) acrylic acid diethylaminoethyl and their chloride salts, (meth) acrylic acid trifluoroethyl (meth) acrylic acid, (meth) acrylic acid such as (meth) acrylate heptadecafluorodecyl
- acrylic acid ester-based monomers such as fluoroalkyl esters, such as ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, trimethylpropanthry (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipenta Polyfunctional (meth) acrylic acid esters such as erythritol hexa (meth
- the polymerizable monomer can be used alone or in combination of two or more.
- the blending ratio of the polymerizable monomer is, for example, 30 parts by mass or more, preferably 40 parts by mass or more, based on 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. Also, for example, it is 60 parts by mass or less.
- the mixing ratio of the polymerizable monomer is, for example, 50 parts by mass or more, preferably 100 parts by mass or more, and for example, 200 parts by mass or less, preferably 200 parts by mass or more, based on 100 parts by mass of the unsaturated polyester. , 130 parts by mass or less.
- the mixing ratio of the polymerizable monomer is, for example, 500 parts by mass or more, preferably 700 parts by mass or more, and for example, 1000 parts by mass or less, preferably 1000 parts by mass, based on 100 parts by mass of the vinyl ester. It is 800 parts by mass or less.
- Aluminum hydroxide is added to impart flame retardancy to a molded product (described later) obtained by using an unsaturated polyester resin composition, and to impart transparency and depth.
- the average particle size of aluminum hydroxide is, for example, 1 ⁇ m or more, and for example, 50 ⁇ m or less, preferably 25 ⁇ m or less.
- the average particle size of aluminum hydroxide can be obtained by creating a particle size distribution curve with a laser diffraction / scattering type particle size distribution measuring device and calculating a particle size equivalent to 50% by mass.
- aluminum hydroxide two or more types of aluminum hydroxide, which can be used alone or have different average particle sizes, and aluminum hydroxide having different sodium oxide contents can be used in combination.
- the blending ratio of aluminum hydroxide is, for example, 100 parts by mass or more, preferably 150 parts by mass or more, based on 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. For example, it is 300 parts by mass or less, preferably 250 parts by mass or less.
- the mixing ratio of aluminum hydroxide is, for example, 300 parts by mass or more, preferably 400 parts by mass or more, and for example, 700 parts by mass or less, preferably 600 parts by mass, based on 100 parts by mass of unsaturated polyester. It is less than a part by mass.
- the compounding ratio of aluminum hydroxide to vinyl ester is 22 or more, and 45 or less, preferably 30 or less.
- the flame retardancy of the molded product (described later) obtained by using this unsaturated polyester resin composition can be improved.
- the mechanical strength (bending property, tensile property) of the molded product (described later) obtained by using this unsaturated polyester resin composition can be improved.
- the mechanical strength (bending property, tensile property) of the molded product (described later) obtained by using this unsaturated polyester resin composition decreases. Further, the coefficient of linear expansion of the molded product (described later) becomes low, and when this molded product is used in combination with a light metal, the coefficient of linear expansion of the molded product (described later) is between the coefficient of linear expansion of the light metal (for example, aluminum). Due to the difference between the two, the dimensional stability is reduced.
- the unsaturated polyester resin composition can be obtained by blending the unsaturated polyester, the vinyl ester, the polymerizable monomer, and the aluminum hydroxide in the above-mentioned blending ratio.
- an unsaturated polyester resin composition can be obtained.
- the blending ratio of the unsaturated polyester is, for example, 5% by mass or more, preferably 10% by mass or more, and, for example, the unsaturated polyester resin composition. It is 20% by mass or less.
- the blending ratio of the vinyl ester is, for example, 1% by mass or more, and for example, 10% by mass or less, preferably 5% by mass or less, based on the unsaturated polyester resin composition.
- the mixing ratio of the polymerizable monomer is, for example, 10% by mass or more, and for example, 30% by mass or less, preferably 20% by mass or less, based on the unsaturated polyester resin composition.
- the blending ratio of aluminum hydroxide is, for example, 50% by mass or more, and for example, 70% by mass or less, based on the unsaturated polyester resin composition.
- the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer is, for example, 20% by mass or more, preferably 30% by mass or more, based on the unsaturated polyester resin composition. For example, it is 50% by mass or less, preferably 40% by mass or less.
- the total amount of the unsaturated polyester, the vinyl ester, the polymerizable monomer, and the aluminum hydroxide is, for example, 60% by mass or more, preferably 70% by mass or more, based on the unsaturated polyester resin composition. More preferably, it is 80% by mass or more, and for example, 99.9% by mass or less.
- a flame retardant can be added to the unsaturated polyester resin composition, if necessary.
- the unsaturated polyester resin composition contains a flame retardant
- flame retardancy can be imparted to a molded product (described later) obtained by using the unsaturated polyester resin composition.
- the flame retardant examples include halogen-based flame retardants such as brominated flame retardants, for example, phosphorus-based flame retardants, inorganic flame retardants, non-halogen flame retardants such as nitrogen compound flame retardants, and are preferable.
- halogen-based flame retardants such as brominated flame retardants, for example, phosphorus-based flame retardants, inorganic flame retardants, non-halogen flame retardants such as nitrogen compound flame retardants, and are preferable.
- halogen-based flame retardants more preferably phosphorus-based flame retardants.
- Exolit AP series specifically, Exolit AP422 (ammonium polyphosphate)
- OP series specifically, Exolit OP1230 (specifically, Exolit OP1230). Phosphate metal salt)
- RP series manufactured by Clariant Chemicals
- FP series specifically, FP-2500S phosphate type
- the blending ratio of the flame retardant is, for example, 1 part by mass or more, preferably 5 parts by mass or more, based on 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. For example, it is 50 parts by mass or less, preferably 20 parts by mass or less.
- the unsaturated polyester resin composition contains additives such as a low shrinkage agent, a polymerization inhibitor, a curing agent, a mold release agent, a colorant, a filler, a wet dispersant, and a thickener, if necessary. be able to.
- additives such as a low shrinkage agent, a polymerization inhibitor, a curing agent, a mold release agent, a colorant, a filler, a wet dispersant, and a thickener, if necessary. be able to.
- additives can be used alone or in combination of two or more.
- the low shrinkage agent is added to suppress curing shrinkage and heat shrinkage of the molded product (described later) when a molded product (described later) obtained by using the unsaturated polyester resin composition is obtained.
- low shrinkage agent examples include polyethylene, polystyrene, styrene-based thermoplastic elastomer, crosslinked polystyrene, polyvinyl acetate-polystyrene block copolymer, polyvinyl acetate, polymethyl methacrylate, saturated polyester resin and the like, and preferred examples thereof.
- polyethylene, polystyrene, polyvinyl acetate and saturated polyester resin are mentioned.
- the saturated polyester resin is obtained by dissolving saturated polyester in the above-mentioned polymerizable monomer.
- Saturated polyester is a polymerization product of the above-mentioned ethylenically unsaturated bond-free polybasic acid and the above-mentioned polyhydric alcohol.
- the ethylenically unsaturated bond-free polybasic acid is preferably a saturated aliphatic dibasic acid or an aromatic polybasic acid, more preferably a saturated aliphatic dibasic acid or an aromatic dibasic acid, and even more preferably.
- Examples include adipic acid and isophthalic acid.
- Ethylene unsaturated bond-free polybasic acid can be used alone or in combination of two or more.
- the polyhydric alcohol is preferably a dihydric alcohol, more preferably neopentyl glycol or the like.
- Multivalent alcohol can be used alone or in combination of two or more.
- Saturated polyester is obtained by polycondensation (condensation polymerization) with an ethylenically unsaturated bond-free polybasic acid and a polyhydric alcohol.
- the equivalent ratio of the polyhydric alcohol to the polybasic acid is, for example, 0.9 or more, preferably 0.95 or more, and for example, 1.2 or less, preferably 1.1 or less.
- the reaction temperature is, for example, 150 ° C. or higher, preferably 190 ° C. or higher, and for example, 250 ° C. or lower, preferably 230 ° C. or lower.
- the reaction time is, for example, 8 hours or more, and for example, 30 hours or less.
- the acid value of saturated polyester (measurement method: based on JIS K6901 (2008)) is, for example, 5 mgKOH / g or more and less than 40 mgKOH / g.
- this saturated polyester is dissolved in the above-mentioned polymerizable monomer (preferably styrene), and if necessary, an additive (polymerization inhibitor (described later) (preferably hydroquinone)) is added to saturate the polyester.
- an additive polymerization inhibitor (described later) (preferably hydroquinone)
- polyester resin preferably hydroquinone
- the compounding ratio of the polymerizable monomer is, for example, 35 parts by mass or more and, for example, 150 parts by mass or less with respect to 100 parts by mass of the saturated polyester, and is a polymerization inhibitor. Is, for example, 0.001 part by mass or more, preferably 0.005 part by mass or more, and for example, 0.1 part by mass or less, preferably 0, based on 100 parts by mass of saturated polyester. It is 0.05 parts by mass or less.
- the low shrinkage agent can be used alone or in combination of two or more.
- the blending ratio of the low shrinkage agent is 5 parts by mass or more, preferably 10 parts by mass or more, based on 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. For example, it is 30 parts by mass or less, preferably 20 parts by mass or less.
- the polymerization inhibitor is formulated to adjust the pot life and the curing reaction, for example, a hydroquinone compound such as hydroquinone, methylhydroquinone, t-butylhydroquinone, for example, a benzoquinone compound such as p-benzoquinone, methyl-p-benzoquinone, etc.
- a catechol compound such as t-butylcatechol, for example, a phenol compound such as 2,6-di-t-butyl-4-methylphenol, 4-methoxyphenol, for example, 1-oxyl-2,2,6.
- 6-Tetramethylpiperidin 1-oxyl-2,2,6,6-tetramethylpiperidine-4-ol, 4-hydroxy-2,2,6,6-tetrapiperidin-1-oxyl, 4-methoxy-2 , 2,6,6-tetramethylpiperidine-1-oxyl, 1-oxyl-2,2,6,6-tetramethylpiperidine-4-yl-acetate, 1-oxyl-2,2,6,6-tetra Methylpiperidin-4-yl-2-ethylhexanoate, 1-oxyl-2,2,6,6-tetramethylpiperidin-4-yl-stearate, 1-oxyl-2,2,6,6-tetra Methylpiperidin-4-yl-4-t-butylbenzoate, bis (1-oxyl-2,2,6,6-tetramethylpiperidine-4-yl) succinic acid ester, bis (1-oxyl-2,2,2) 6,6-Tetramethylpiperidin-4-yl) adipic acid ester, bis (1-
- the compounding ratio of the polymerization inhibitor is, for example, 0.01 parts by mass or more, and for example, 0.1 parts by mass, based on 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. It is less than a part by mass.
- the polymerization inhibitor can be used alone or in combination of two or more.
- curing agent examples include benzoyl peroxide, t-butylperoxyisopropyl monocarbonate, t-amylperoxyisopropyl monocarbonate, t-hexylperoxyisopropyl monocarbonate, and 1,1-bis (t-butylperoxy).
- peroxides such as oxybenzoate and t-hexyl peroxyacetate, preferably t-butylperoxyisopropyl monocarbonate, t-amylperoxyisopropyl monocarbonate, and t-hexyl peroxy, which are peroxyisopropyl monocarbonates.
- examples thereof include isopropyl monocarbonate and t-butylperoxybenzoate.
- the blending ratio of the curing agent is, for example, 0.5 parts by mass or more, preferably 1 part by mass or more, based on 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. Further, for example, it is 10 parts by mass or less, preferably 3 parts by mass or less.
- the curing agent can be used alone or in combination of two or more.
- the release agent examples include fatty acids such as stearic acid and lauric acid, and fatty acid metal salts such as zinc stearate and calcium stearate, such as paraffin, liquid wax, fluoropolymer, and silicon-based polymer, which are preferable. Is a fatty acid metal salt, more preferably zinc stearate.
- the mixing ratio of the release agent is, for example, 1 part by mass or more, preferably 3 parts by mass or more, based on 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. For example, it is 10 parts by mass or less.
- the release agent can be used alone or in combination of two or more.
- the colorant is not particularly limited, and examples thereof include titanium oxide and polyester toner (titanium oxide and / or carbon black-containing polyester colorant), and polyester toner is preferable.
- the mixing ratio of the colorant is, for example, 1 part by mass or more, preferably 5 parts by mass or more, based on 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. For example, it is 20 parts by mass or less.
- the colorant can be used alone or in combination of two or more.
- the filler examples include oxides such as alumina and titania, hydroxides such as magnesium hydroxide (excluding aluminum hydroxide), carbonates such as calcium carbonate, sulfates such as barium sulfate, and silica.
- hydroxides such as magnesium hydroxide (excluding aluminum hydroxide)
- carbonates such as calcium carbonate
- sulfates such as barium sulfate
- silica for example, glass powder, for example, hollow fillers such as glass balloons, silica balloons, alumina balloons, for example, silica sand, diatomaceous earth, mica, etc.
- silicates such as clay, kaolin and talc
- fluorides such as firefly stones
- phosphates such as calcium phosphate
- inorganic fillers such as clay minerals such as smectite.
- the blending ratio of the filler is, for example, 1 part by mass or more, preferably 3 parts by mass or more, based on 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. For example, it is 50 parts by mass or less, preferably 30 parts by mass or less.
- the filler can be used alone or in combination of two or more.
- the wet dispersant is blended to reduce the unsaturated polyester resin composition to a viscosity suitable for heat compression molding, and examples thereof include known wet dispersants such as polyester phosphate.
- a commercially available product can be used, and specifically, BYK-W996 (manufactured by Big Chemie) or the like is used.
- the blending ratio of the wet dispersant is, for example, 0.5 parts by mass or more, preferably 1 part by mass or more, based on 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. Also, for example, it is 10 parts by mass or less, preferably 3 parts by mass or less.
- the wet dispersant can be used alone or in combination of two or more.
- the thickener is compounded to thicken the unsaturated polyester resin composition to a viscosity suitable for heat compression molding, preferably before impregnating the reinforcing fibers (described later) with the unsaturated polyester resin composition (preferably).
- examples thereof include alkaline earth metal oxides such as magnesium oxide, and alkaline earth metal hydroxides such as magnesium hydroxide and calcium hydroxide, and alkaline earth metals are preferable. Oxides, more preferably magnesium oxide.
- the blending ratio of the thickener is, for example, 0.5 parts by mass or more, and for example, 10 parts by mass with respect to 100 parts by mass of the total amount of the unsaturated polyester, the vinyl ester, and the polymerizable monomer. Hereinafter, it is preferably 3 parts by mass or less.
- the thickener can be used alone or in combination of two or more.
- the unsaturated polyester resin composition is provided with, for example, a pattern material, an antibacterial agent, a hydrophilic agent, a photocatalyst, an ultraviolet absorber, an ultraviolet stabilizer, a separation inhibitor, a silane coupling agent, an antistatic agent, and a thixo.
- Additives such as agents, thixo stabilizers, and polymerization accelerators can be blended as long as the effects of the present invention are not impaired. These additives can be used alone or in combination of two or more.
- the unsaturated polyester, the vinyl ester, the polymerizable monomer, the aluminum hydroxide, the flame retardant to be blended if necessary, and the additive to be blended if necessary are blended, and the mixture is not used.
- a saturated polyester resin composition was obtained. First, an unsaturated polyester resin was prepared by dissolving the unsaturated polyester in a polymerizable monomer, and then the obtained unsaturated polyester resin, vinyl ester, and the like were used. It is also possible to blend a polymerizable monomer, aluminum hydroxide, a flame retardant to be blended if necessary, and an additive to be blended if necessary.
- the unsaturated polyester and the polymerizable monomer can be blended, and if necessary, the above additives (for example, a polymerization inhibitor) can be blended.
- the above additives for example, a polymerization inhibitor
- the blending ratio of the polymerizable monomer is, for example, 35 parts by mass or more and, for example, 150 parts by mass or less, with respect to 100 parts by mass of the unsaturated polyester.
- the blending ratio of the banning agent is, for example, 0.001 part by mass or more, preferably 0.005 part by mass or more, and for example, 0.1 part by mass or less, preferably 0.1 part by mass or more, based on 100 parts by mass of the unsaturated polyester. Is 0.05 parts by mass or less.
- a vinyl ester resin is prepared by dissolving the vinyl ester in the polymerizable monomer, and then the obtained vinyl ester resin, unsaturated polyester, polymerizable monomer, aluminum hydroxide, and the like. It is also possible to blend a flame retardant to be blended as needed and an additive to be blended as needed.
- an unsaturated polyester and a polymerizable monomer can be blended, and if necessary, the above additives can be blended.
- the compounding ratio of the polymerizable monomer is, for example, 35 parts by mass or more and, for example, 150 parts by mass or less with respect to 100 parts by mass of the vinyl ester.
- an unsaturated polyester resin and a vinyl ester resin are first prepared by the above method, and then the obtained unsaturated polyester resin, the obtained vinyl ester resin, the polymerizable monomer, and aluminum hydroxide are prepared. It is also possible to blend a flame retardant to be blended as needed and an additive to be blended as needed.
- the blending ratio of the vinyl ester is a predetermined ratio with respect to the unsaturated polyester.
- the molded product (described later) obtained by using this unsaturated polyester resin composition has excellent mechanical characteristics (bending characteristics, tensile characteristics) and low shrinkage.
- the compounding ratio of aluminum hydroxide to vinyl ester is a predetermined ratio.
- the molded product (described later) obtained by using this unsaturated polyester resin composition is excellent in flame retardancy and mechanical properties (bending characteristics, tensile characteristics).
- the unsaturated polyester resin composition contains a predetermined ratio of vinyl ester and a predetermined ratio of aluminum hydroxide.
- the molded product (described later) obtained by using this unsaturated polyester resin composition has excellent flame retardancy and mechanical strength, and also has low shrinkage.
- a molding material can be prepared by blending reinforcing fibers with such an unsaturated polyester resin composition. Then, a molded product can be obtained from such a molding material by a known method.
- the reinforcing fiber examples include inorganic fibers such as glass fiber, carbon fiber, metal fiber and ceramic fiber, and organic fiber such as polyvinyl alcohol fiber, polyester fiber, polyamide fiber, fluororesin fiber and phenol fiber.
- inorganic fibers such as glass fiber, carbon fiber, metal fiber and ceramic fiber
- organic fiber such as polyvinyl alcohol fiber, polyester fiber, polyamide fiber, fluororesin fiber and phenol fiber.
- natural fibers such as hemp and kenaf are mentioned, preferably inorganic fibers, more preferably carbon fibers, glass fibers, and even more preferably glass fibers.
- the shape of these reinforcing fibers is, for example, a cross shape such as a roving cloth, for example, a mat shape such as a chopped strand mat, a preformable mat, a continuance strand mat, a surfaced mat, and a strand shape such as a chopped strand.
- a roving shape for example, a non-woven fabric shape, for example, a paper shape, etc. can be mentioned, and a chopped strand is preferably mentioned.
- chopped glass strands obtained by bundling glass fibers and cutting them to a predetermined length can be mentioned.
- the length of the reinforcing fiber is not particularly limited, and is, for example, 0.1 mm or more, preferably 1.5 mm or more, more preferably 5 mm or more, still more preferably 15 mm or more, and for example, 80 mm or less. It is preferably 40 mm or less.
- the molding material can be obtained as, for example, a sheet-shaped molding material by impregnating the reinforcing fibers with the unsaturated polyester resin composition.
- the blending ratio of the reinforcing fibers is, for example, 5% by mass with respect to the total amount of the unsaturated polyester resin composition and the reinforcing fibers.
- the above is preferably 10% by mass or more, more preferably 20% by mass or more, and for example, 50% by mass or less, preferably 40% by mass or less.
- Examples of the method for preparing the molding material include known methods, such as SMC (Sheet Molding Compound), TMC (Sick Molding Compound), BMC (Bulk Molding Compound), and preferably SMC. ..
- the filler-excluded components are polymerized with respect to the molding material, excluding aluminum hydroxide and a filler to be blended if necessary.
- the total amount (volume content) of the sex monomer, the flame retardant compounded if necessary, and the additives other than the filler compounded if necessary)) is preferably, for example, 40% by volume or more. Is 45% by volume or more, and is, for example, 70% by volume or less, preferably 60% by volume or less.
- volume content of aluminum hydroxide with respect to the molding material is, for example, 10% by volume or more, preferably 20% by volume or more, and for example, 30% by volume or less.
- the volume content of the reinforcing fibers with respect to the molding material is, for example, 15% by volume or more, preferably 20% by volume or more, and for example, 40% by volume or less, preferably 30% by volume or less. is there.
- this molding material contains the above-mentioned unsaturated polyester resin composition, the molded product (described later) obtained by using this molding material has excellent flame retardancy and mechanical strength, and also has low shrinkage.
- the molding material is retained in a sheet shape, for example. That is, the molding material has a sheet shape.
- the molded product is obtained by heat-compressing the molding material by a known method.
- the conditions for heat compression molding are appropriately set according to the purpose and application.
- the molding temperature is, for example, 100 ° C. or higher
- the molding pressure is, for example, 200 ° C. or lower
- the molding pressure is, for example. , 0.1 MPa or more, preferably 1 MPa or more, more preferably 5 MPa or more, and for example, 20 MPa or less, preferably 15 MPa or less.
- the molding material is cured and the molding material is molded.
- this molded product contains a cured product of the above-mentioned molding material, it has excellent flame retardancy and mechanical strength, and also has low shrinkage.
- Such molded products can be widely used for building materials, housings, casting materials, mechanical parts (for example, battery pack housings for electric vehicles), electronic / electrical parts, vehicles, ships, aircraft, and the like. ..
- the battery pack housing of an electric vehicle may be required to have excellent flame retardancy due to the delay in the spread of fire in the event of a vehicle fire.
- the battery pack housing of an electric vehicle may be required to have excellent mechanical strength and low shrinkage in order to reduce warpage and deformation.
- this molded product has excellent flame retardancy and mechanical strength, and also has low shrinkage, so that it can be suitably used for a battery pack housing of an electric vehicle.
- Synthesis example 4 In the same reaction vessel as in Synthesis Example 3, 1850 parts by mass (10.0 equivalents) of bisphenol A type epoxy compound (epoxy equivalent 185 g / eq), 477 parts by mass (4.18 equivalents) of bisphenol A, and triethylbenzylammonium as a catalyst. 0.5 parts by mass of chloride was charged and reacted at 150 ° C. for 5 hours while blowing nitrogen to obtain an epoxy resin having an epoxy equivalent of 395 g / eq.
- bisphenol A type epoxy compound epoxy equivalent 185 g / eq
- 477 parts by mass (4.18 equivalents) of bisphenol A and triethylbenzylammonium as a catalyst.
- 0.5 parts by mass of chloride was charged and reacted at 150 ° C. for 5 hours while blowing nitrogen to obtain an epoxy resin having an epoxy equivalent of 395 g / eq.
- Synthesis example 5 In the same reaction vessel as in Synthesis Example 3, 1800 parts by mass (10.0 equivalents) of phenol novolac type epoxy resin (epoxy equivalent 180 g / eq, average number of functional groups 3.6), and 2.0 parts by mass of hydroquinone as a polymerization inhibitor. , 2.0 parts by mass of triethylbenzylammonium chloride and 882 parts by mass (10.3 equivalent) of methacrylic acid were added as a catalyst, and the mixture was reacted at 110 ° C. for 8 hours while blowing air to vinyl having an acid value of 10.5 mgKOH / g. I got an ester.
- a glass chop obtained by adding 0.8 parts by mass of magnesium oxide as a thickener to this unsaturated polyester resin composition and then continuously cutting glass roving to 25 mm as a reinforcing fiber has a glass content of 20.7 mass.
- SMC molding material
- Examples 2 to 9 and Comparative Examples 1 to 8 A molding material was obtained by treating in the same manner as in Example 1 except that the compounding formulation was changed according to the description in Tables 1 and 2.
- Example 9 a metal phosphinic acid salt (OP1230 (trade name, Exolit OP1230, manufactured by Clariant Chemicals, Inc., phosphorus content 23%)) was used as a flame retardant.
- OP1230 trade name, Exolit OP1230, manufactured by Clariant Chemicals, Inc., phosphorus content 23%)
- Comparative Example 5 and Comparative Example 8 calcium carbonate having an average particle size of about 3 ⁇ m was used as the filler. 5. Evaluation (molding shrinkage rate) The molding materials of each Example and each Comparative Example were heat-compressed using a 300 mm ⁇ 300 mm flat plate gold plate to obtain a flat plate-shaped molded product having a thickness of 4 mm.
- Molding was carried out under the conditions that the mold temperature was 140 ° C. on both the product surface and the back surface, the molding pressure was 10 MPa, and the holding time in the mold was 420 seconds. Then, the molded product was removed from the mold and immediately sandwiched between iron plates and cooled. Then, the molded product was left at 25 ° C. for 24 hours, the dimensions of the four sides of the molded product at 25 ° C. were measured, and the shrinkage ratio was measured by the ratio with the dimensions of the flat plate mold described above. The results are shown in Tables 3 and 4.
- the shrinkage rate was less than 0.00.
- ⁇ The shrinkage rate was 0.00 or more and less than 0.10.
- X The shrinkage rate was 0.10 or more.
- the unsaturated polyester resin composition, molding material and molded product of the present invention include building materials, housings, casting materials, mechanical parts (for example, battery pack housings for electric vehicles), electronic / electrical parts, vehicles, ships, aircraft and the like. It is preferably used in each member of the above.
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Abstract
Description
このようなビスフェノール型エポキシ樹脂として、例えば、ビスフェノールA型エポキシ樹脂、ビスフェノールF型エポキシ樹脂、ビスフェノールS型エポキシ樹脂などが挙げられ、好ましくは、ビスフェノールA型エポキシ樹脂が挙げられる。
1.不飽和ポリエステル樹脂の調製
合成例1
温度計、窒素ガス導入管、還流冷却器および攪拌機を備えたフラスコに、無水マレイン酸10.0モル、プロピレングリコール6.5モル、ネオペンチルグリコール4.0モルを仕込み、窒素ガス雰囲気下で撹拌しながら200℃~210℃で重縮合反応させ、酸価が26.5mgKOH/gの不飽和ポリエステルを得た。なお、酸価の測定方法は、JIS K6901(2008年)に準拠した。得られた不飽和ポリエステル100質量部に対し、重合禁止剤としてハイドロキノンを0.01質量部、スチレンを66.7質量部添加し、これらを均一に混合して、不飽和ポリエステル樹脂(スチレン含有量40%)を得た。
2.飽和ポリエステル樹脂の調製
合成例2
温度計、窒素ガス導入管、還流冷却器および攪拌機を備えたフラスコに、イソフタル酸4.0モル、ネオペンチルグリコール10.5モルを仕込み、窒素ガス雰囲気下で撹拌しながら200℃~210℃で重縮合反応させた。その後、反応生成物の酸価が10mgKOH/gになった時点で150℃まで冷却し、アジピン酸6.0モルを仕込み、再び210℃~220℃で反応させ、酸価9.5mgKOH/gの飽和ポリエステルを得た。得られた飽和ポリエステル100質量部に対し、重合禁止剤としてハイドロキノンを0.01質量部、スチレンを66.7質量部添加し、これらを均一に混合して、飽和ポリエステル樹脂(スチレン含有率40%)を得た。
3.ビニルエステル樹脂の調製
合成例3
攪拌機、還流冷却器、ガス導入管を備えた反応容器(フラスコ)に、ビスフェノールA型エポキシ化合物(エポキシ当量185g/eq)1850質量部(10.0当量)、ビスフェノールA 317質量部(2.78当量)、触媒として、トリエチルベンジルアンモニウムクロライド 0.5質量部を仕込み、窒素を吹き込みながら、150℃で5時間反応させて、エポキシ当量が298g/eqのエポキシ樹脂を得た。120℃まで冷却後、重合禁止剤としてハイドロキノン 2.0質量部、触媒として、トリエチルベンジルアンモニウムクロライド2.0質量部、メタクリル酸636質量部(7.40当量)を添加し、空気を吹き込みながら110℃で8時間反応させ、酸価8.0mgKOH/gのビニルエステルを得た。次いで、このビニルエステルにスチレン 1869質量部(ビニルエステル100質量部に対して、66.7質量部)を加えることによりスチレン40質量%含有のビニルエステル樹脂を得た。
合成例3と同様の反応容器に、ビスフェノールA型エポキシ化合物(エポキシ当量185g/eq)1850質量部(10.0当量)、ビスフェノールA 477質量部(4.18当量)、触媒として、トリエチルベンジルアンモニウムクロライド0.5質量部を仕込み、窒素を吹き込みながら、150℃で5時間反応させて、エポキシ当量が395g/eqのエポキシ樹脂を得た。120℃まで冷却後、重合禁止剤としてハイドロキノン2.0質量部、触媒として、トリエチルベンジルアンモニウムクロライド2.0質量部、メタクリル酸513質量部(5.97当量)を添加し、空気を吹き込みながら110℃で8時間反応させ、酸価8.5mgKOH/gのビニルエステルを得た。次いで、このビニルエステルにスチレン1893質量部(ビニルエステル100質量部に対して、66.7質量部)を加えることによりスチレン40質量%含有のビニルエステル樹脂を得た。
合成例3と同様の反応容器に、フェノールノボラック型エポキシ樹脂(エポキシ当量180g/eq、平均官能基数3.6)1800質量部(10.0当量)、重合禁止剤として、ハイドロキノン2.0質量部、触媒として、トリエチルベンジルアンモニウムクロライド2.0質量部、メタクリル酸882質量部(10.3当量)を添加し、空気を吹き込みながら110℃で8時間反応させ、酸価10.5mgKOH/gのビニルエステルを得た。次いで、このビニルエステルにスチレン1788質量部(ビニルエステル100質量部に対して、66.7質量部)を加えることによりスチレン40質量%含有のビニルエステル樹脂を得た。
4.不飽和ポリエステル樹脂組成物および成形材料の調製
実施例1
合成例1の不飽和ポリエステル樹脂60質量部(不飽和ポリエステル36質量部、スチレン24質量部)、合成例3のビニルエステル樹脂10質量部(ビニルエステル6質量部、スチレン4質量部)、重合性単量体として、スチレン10質量部、水酸化アルミニウム(平均粒子径8μm)150質量部、低収縮化剤として、ポリスチレン溶液(重量平均分子量が約250000のポリスチレンの35%スチレン溶液)15質量部、ポリエチレン粉末5質量部、重合禁止剤として、p-ベンゾキノン0.05質量部、硬化剤として、t-ブチルパーオキシベンゾエート1質量部、離型剤として、ステアリン酸亜鉛5質量部、着色剤として、黒色ポリエステルトナー(カーボンブラックをポリエステル樹脂に分散させたもの)10質量部、湿潤分散剤として、リン酸ポリエステル1質量部を混合して、不飽和ポリエステル樹脂組成物を得た。
配合処方を、表1および表2の記載に従って変更した以外は、実施例1と同様に処理して、成形材料を得た。
5.評価
(成形収縮率)
各実施例および各比較例の成形材料を、300mm×300mm平板金板を用いて、加熱圧縮成型して、厚み4mmの平板状の成形品を得た。
評価基準:
◎:収縮率が、0.00未満であった。
○:収縮率が、0.00以上、0.10未満であった。
×:収縮率が、0.10以上であった。
成形収縮率測定で用いた平板状の成形品から、試験片を切削加工し、UL規格(Underwriters Laboratories Inc.)のUL94規格(プラスチック材料燃焼性試験)に準拠して燃焼試験を実施した。詳しくは、厚さ4mm、厚さ3mm、厚さ2.5mmのそれぞれの試験片でV-0基準を満たすか評価した。その結果を表3および表4に示す。
評価基準:
◎:V-0基準(厚み2mm)に適合した。
○:V-0基準(厚み3mm)に適合した。
×:V-0基準(厚み4mm)に適合しなかった。
(線膨張係数)
成形収縮率測定で用いた平板状の成形品(厚み4mm)から、試験片(4mm×4mm×5mm)を切削加工し、熱機械分析装置(日立ハイテクサイエンス社製、EXSTAR TMA SS7100)で圧縮・膨張プローブを使用し、成形品の水平方向の線膨張係数を測定した。5℃/分の昇温速度で室温より100℃まで昇温し、50℃から80℃の範囲の線膨張係数を測定した。その結果を表3および表4に示す。
○:アルミニウムの線膨張係数との差の絶対値が、0以上4.5未満
△:アルミニウムの線膨張係数との差の絶対値が、4.5以上6未満
×:アルミニウムの線膨張係数との差の絶対値が、6以上
(発煙性)
上記難燃性試験で、厚み3mm試験片を使用した際のV-0判定試験において、燃焼時に黒煙が発生するか目視で観察した。
○:黒煙が発生しなかった。
×:黒煙が発生した。
成形収縮率測定で用いた平板状の成形品(厚み4mm)から、試験片を切り出し、JIS K6911(1995年)に準拠し、密度を測定した。その結果を表3および表4に示す。
成形収縮率測定で用いた平板状の成形品(厚み4mm)から、試験片(長さ80mm、幅10mm)を切り出し、JIS K7017(1999年)に準拠し、23℃および90℃において曲げ強さ、曲げ弾性率を測定した。その結果を表3および表4に示す。
(引張特性)
成形収縮率測定で用いた平板状の成形品(厚み4mm)から、試験片を切り出し、JIS K7164(2005年)に準拠し、23℃において引張強さ、引張弾性率を測定した。その結果を表3および表4に示す。
Claims (6)
- 不飽和ポリエステルと、ビニルエステルと、重合性単量体と、水酸化アルミニウムとを含み、
前記ビニルエステルは、エポキシ樹脂と不飽和一塩基酸との反応生成物であり、
前記ビニルエステルの配合割合は、前記不飽和ポリエステル100質量部に対して、5質量部以上20質量部以下であり、
前記ビニルエステルに対する前記水酸化アルミニウムの配合比(水酸化アルミニウム/ビニルエステル)が22以上45以下であることを特徴とする、不飽和ポリエステル樹脂組成物。 - 前記エポキシ樹脂は、ビスフェノール型エポキシ樹脂であり、
前記エポキシ樹脂のエポキシ当量は、250g/eq以上350g/eq以下であることを特徴とする、請求項1に記載の不飽和ポリエステル樹脂組成物。 - 前記エポキシ樹脂は、ビスフェノールA型エポキシ樹脂であることを特徴とする、請求項2に記載の不飽和ポリエステル樹脂組成物。
- さらに、難燃剤を含むことを特徴とする、請求項1に記載の不飽和ポリエステル樹脂組成物。
- 請求項1に記載の不飽和ポリエステル樹脂組成物と、強化繊維とを含むことを特徴とする、成形材料。
- 請求項5に記載の成形材料の硬化物を含むことを特徴とする、成形品。
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| CN202080067434.7A CN114555664B (zh) | 2019-11-12 | 2020-11-09 | 不饱和聚酯树脂组合物、成型材料及成型品 |
| US17/773,086 US12435173B2 (en) | 2019-11-12 | 2020-11-09 | Unsaturated polyester resin composition, molding material, and molded article |
| JP2021556083A JP7692835B2 (ja) | 2019-11-12 | 2020-11-09 | 不飽和ポリエステル樹脂組成物、成形材料および成形品 |
| JP2023184052A JP2023181331A (ja) | 2019-11-12 | 2023-10-26 | 不飽和ポリエステル樹脂組成物、成形材料および成形品 |
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| JP2023119908A (ja) * | 2022-02-17 | 2023-08-29 | 株式会社レゾナック | 硬化性樹脂組成物及び電気電子部品 |
| WO2025004979A1 (ja) * | 2023-06-29 | 2025-01-02 | ジャパンコンポジット株式会社 | 不飽和ポリエステル樹脂組成物、成形材料、および、成形品 |
| JP7806543B2 (ja) | 2022-02-17 | 2026-01-27 | 株式会社レゾナック | 硬化性樹脂組成物及び電気電子部品 |
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| TWI882493B (zh) * | 2023-10-25 | 2025-05-01 | 明泰科技股份有限公司 | 可切換式水平面半功率波束寬之天線系統 |
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| JP7692835B2 (ja) | 2025-06-16 |
| JP2023181331A (ja) | 2023-12-21 |
| CN114555664B (zh) | 2025-01-03 |
| US20240141090A1 (en) | 2024-05-02 |
| US12435173B2 (en) | 2025-10-07 |
| CN114555664A (zh) | 2022-05-27 |
| JPWO2021095688A1 (ja) | 2021-05-20 |
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