WO2018216406A1 - フルオロポリエーテル基含有ポリマー変性有機ケイ素化合物、表面処理剤及び物品 - Google Patents
フルオロポリエーテル基含有ポリマー変性有機ケイ素化合物、表面処理剤及び物品 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/002—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds
- C08G65/005—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds containing halogens
- C08G65/007—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds containing halogens containing fluorine
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- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/10—Block or graft copolymers containing polysiloxane sequences
- C09D183/12—Block or graft copolymers containing polysiloxane sequences containing polyether sequences
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- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
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- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/22—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring
- C08G65/223—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring containing halogens
- C08G65/226—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring containing halogens containing fluorine
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- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/336—Polymers modified by chemical after-treatment with organic compounds containing silicon
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- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/46—Block-or graft-polymers containing polysiloxane sequences containing polyether sequences
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino-carboxylic acids or of polyamines and polycarboxylic acids
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- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/10—Block- or graft-copolymers containing polysiloxane sequences
- C08L83/12—Block- or graft-copolymers containing polysiloxane sequences containing polyether sequences
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- C08G2150/00—Compositions for coatings
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
- C09D201/02—Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
- C09D201/04—Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing halogen atoms
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- C09D201/00—Coating compositions based on unspecified macromolecular compounds
- C09D201/02—Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
- C09D201/06—Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing oxygen atoms
Definitions
- the present invention relates to a fluoropolyether group-containing polymer-modified organosilicon compound, a surface treatment agent containing the organosilicon compound, and an article surface-treated with the surface treatment agent.
- the conventional water / oil repellent layer has high water / oil repellency and excellent dirt wiping property, but has a problem that the antifouling performance deteriorates during use.
- performance may vary depending on the coating method, and adhesion may be inferior depending on the substrate to be coated.
- many of the surface treatment agents used so far show good surface properties for glass, but surface properties such as adhesion, water and oil repellency, and wear resistance are sufficient for the resin surface. There was nothing to show.
- a fluoropolyether group-containing compound has water and oil repellency, chemical resistance, lubricity, releasability, antifouling property and the like because its surface free energy is very small. Utilizing its properties, it is widely used industrially for water and oil repellent and antifouling agents such as paper and fiber, lubricants for magnetic recording media, oil repellents for precision equipment, mold release agents, cosmetics, and protective films. ing. However, the property means that it is non-adhesive and non-adhesive to other substrates at the same time, and even if it can be applied to the surface of the substrate, it was difficult to make the film adhere to it. .
- a silane coupling agent is well known as a material for bonding a substrate surface such as glass or cloth and an organic compound, and is widely used as a coating agent for various substrate surfaces.
- the silane coupling agent has an organic functional group and a reactive silyl group (generally a hydrolyzable silyl group such as an alkoxysilyl group) in one molecule.
- the hydrolyzable silyl group causes a self-condensation reaction with moisture in the air to form a film.
- the coating becomes a strong coating having durability by chemically and physically bonding the hydrolyzable silyl group to the surface of glass or metal.
- Patent Documents 1 to 8 Japanese Patent Application Laid-Open No. 2003-238777, Japanese Patent No. 2860979, Patents) No. 4672095, JP-T 2008-534696, JP-T 2008-537557, JP 2012-072722, JP 2012-157856, JP 2013-136833).
- a film is formed on the substrate using various coating methods.
- the hydrolysis reaction is accelerated by a high temperature condition of 100 ° C. or higher or a condition under humidification.
- a cured film can be formed by reacting gradually with moisture in the air even at room temperature.
- the curing process has a problem that it may become a rate-limiting factor (delay factor) in manufacturing, such as requiring high-temperature humidification conditions and taking time when curing at room temperature.
- a film (water / oil repellent layer) cured in a short time under a mild condition such as room temperature curing has a problem that the anti-fouling performance deteriorates during wear resistance and use.
- Patent Document 9 Japanese Patent Laid-Open No. 2008-144144
- film formation is performed in a short time under mild conditions by adding a fluorinated carboxylic acid as a curing catalyst in the coating composition to promote curing.
- a fluorinated carboxylic acid as a curing catalyst
- the wear resistance is insufficient for substrates such as resins and metals.
- JP 2003-238777 A Japanese Patent No. 2860979 Japanese Patent No. 4672095 Special table 2008-534696 Special table 2008-537557 JP 2012-072272 A JP 2012-157856 A JP 2013-136833 A JP 2008-144144 A
- the present invention has been made in view of the above circumstances, and particularly on the resin surface, a fluoropolyether group capable of forming a water- and oil-repellent layer having excellent wear resistance even in a short time under mild conditions such as room temperature. It is an object of the present invention to provide a containing polymer-modified organosilicon compound, a surface treatment agent containing the organosilicon compound, and an article surface-treated with the surface treatment agent.
- the present inventors have obtained a surface treatment agent using a fluoropolyether group-containing polymer-modified organosilicon compound represented by the following general formula (1) or (2): It has been found that a water- and oil-repellent layer excellent in abrasion resistance can be formed under mild conditions such as room temperature without having a hydrolyzable group, and has led to the present invention.
- the present invention provides the following fluoropolyether group-containing polymer-modified organosilicon compound, surface treatment agent and article.
- Rf is a monovalent or divalent fluorooxyalkylene group-containing polymer residue
- Y 1 and Y 2 are each independently a single bond or a divalent hydrocarbon group
- Q is independently 2 to 2 Tetravalent, linear, branched or cyclic organosiloxane residues, silalkylene structures, silarylene structures, diorganosilylene groups, monoorganosilylene groups, silicon atoms, carbon atoms, or combinations thereof or alkylenes thereof
- X is independently a glycidoxy group, a glycidoxyalkyl group, an alicyclic epoxy group, or an alicyclic epoxy-containing alkyl group
- k is an integer of 0 to 2
- m is 1 to 5
- N is an integer of 1 to 3
- Z is independently a hydrogen
- g is an integer of 1 to 20, and j is an integer of 1 to 8.
- the fluoropolyether group-containing polymer-modified organosilicon compound according to any one of [1] to [5], wherein Z is at least one selected from a hydrogen atom and the following groups.
- g is an integer of 1 to 20.
- the fluoropolyether group-containing polymer-modified organic silicon compound represented by the general formula (1) or (2) is represented by any one of the following formulas: [1] to [6] A fluoropolyether group-containing polymer-modified organosilicon compound.
- a surface treating agent comprising the fluoropolyether group-containing polymer-modified organosilicon compound according to any one of [1] to [7].
- the surface treatment agent is further represented by the following general formula (5) (In the formula, A is a fluorine atom or a monovalent fluorine-containing group whose terminal is a —CF 3 group, and Rf ′ is a divalent fluorooxyalkylene group-containing polymer residue.)
- the film formed from the surface treatment agent containing the fluoropolyether group-containing polymer-modified organosilicon compound of the present invention has high water and oil repellency, and in particular, the film formed in a short time under mild conditions such as room temperature. Excellent wear resistance.
- excellent water and oil repellency, low dynamic friction and wear resistance are easily imparted to various articles in a short time. be able to.
- the fluoropolyether group-containing polymer-modified organosilicon compound of the present invention is represented by the following general formula (1) or (2).
- Rf is a monovalent or divalent fluorooxyalkylene group-containing polymer residue
- Y 1 and Y 2 are each independently a single bond or a divalent hydrocarbon group
- Q is independently 2 to 2 Tetravalent, linear, branched or cyclic organosiloxane residues, silalkylene structures, silarylene structures, diorganosilylene groups, monoorganosilylene groups, silicon atoms, carbon atoms, or combinations thereof or alkylenes thereof
- X is independently a glycidoxy group, a glycidoxyalkyl group, an alicyclic epoxy group, or an alicyclic epoxy-containing alkyl group
- k is an integer of 0 to 2
- m is 1 to 5
- N is an integer of 1 to 3
- Z is independently a hydrogen atom, the formula
- Rf is a monovalent fluorooxyalkyl group represented by the following general formula (3) (that is, a monovalent fluorooxyalkylene group-containing polymer) Residue) is preferred.
- Rf is a divalent fluorooxyalkylene group represented by the following general formula (4) (that is, a divalent fluorooxyalkylene group-containing polymer) Residue) is preferred.
- d is an integer of 1 to 3, preferably 1 or 2, and the unit (—C d F 2d —) may be linear or branched. Good.
- a film having a low dynamic friction coefficient can be formed.
- it has a fluoropolyether structure (monovalent fluorooxyalkylene group-containing polymer residue) in the main chain and an epoxy group at one end of the molecular chain, and these are siloxane bonds, silphenylene bonds or silalkylene bonds
- Containing polymer-modified organosilicon compound has a fluoropolyether structure (a divalent fluorooxyalkylene group-containing polymer residue) in the main chain and an epoxy group at both ends of the molecular chain, and these are siloxane bonds, Linear polymer linked by a silphenylene bond or a silalkylene bond
- Rf include the following. (Wherein p ′, q ′, r ′ and s ′ are each an integer of 1 or more, and the upper limit thereof is the same as the upper limit of p, q, r and s. U is an integer of 1 to 24, v is an integer of 1 to 24. Each repeating unit may be bonded at random.)
- Y 1 and Y 2 are each independently a single bond or a divalent hydrocarbon group, and Y 1 and Y 2 have 2 to 10 carbon atoms, particularly 2 to 8 carbon atoms.
- An alkylene group such as ethylene group, propylene group (trimethylene group, methylethylene group), butylene group (tetramethylene group, methylpropylene group), hexamethylene group, octamethylene group, etc. is preferable, and ethylene group, trimethylene are particularly preferable. It is a group.
- X represents a glycidoxy group, a glycidoxyalkyl group, an alicyclic epoxy group, or an alicyclic epoxy group-containing alkyl group (for example, glycidoxy group, 3,4-epoxycyclohexyl group) 2,3-epoxycyclohexyl group, ⁇ -glycidoxypropyl group, 3,4-epoxycyclohexylethyl group, 2,3-epoxycyclohexylethyl group, and the like.
- Q is independently a divalent to tetravalent, linear, branched or cyclic organosiloxane residue, silalkylene structure, silarylene structure, diorganosilylene group, mono An organosilylene group, a silicon atom, a carbon atom, or a combination thereof or a combination of these with an alkylene group.
- examples of the linear, branched, and cyclic organosiloxane residues, the silalkylene structure, and the silarylene structure include the following.
- R 1 is independently an alkyl group such as a methyl group having 1 to 4 carbon atoms, an ethyl group, a propyl group or a butyl group, or a phenyl group
- R 2 is a methylene group having 1 to 4 carbon atoms or an ethylene group.
- R 3 is a hydrogen atom or R 1
- g is an integer of 1 to 20, preferably 1 to 10 And more preferably an integer of 2 to 10
- j is an integer of 1 to 8, preferably an integer of 1 to 3.
- an alkylene group is a divalent group or a bivalent to tetravalent group in which the alkylene groups are bonded via a silalkylene structure or a silarylene structure.
- 2 -C 10 straight chain such as divalent to tetravalent radical which alkylene group is bonded and the like to bond branched organosiloxane residues.
- Q include the following groups. (In the formula, g1 is an integer of 2 to 20, preferably an integer of 2 to 10.)
- Z is independently a hydrogen atom, the following formula —SiR 3 (In the formula, each R is independently an alkyl group having 1 to 4 carbon atoms or a phenyl group.) Or a triorganosilyl group represented by the formula: -W 1 -Q'-W 2 -X ' Wherein X ′ is the same as X or SiR 3 (R is the same as above), and W 1 and W 2 are each independently a single bond or a divalent hydrocarbon group, and Q ′ Is a structure selected from a diorganosilylene group, an organosiloxane residue (wherein the terminal of the residue may be a silicon atom or an oxygen atom), a silalkylene structure, a silarylene structure, and combinations thereof.
- R is an alkyl group such as a methyl group having 1 to 4 carbon atoms, an ethyl group, a propyl group, or a butyl group, or a phenyl group. Among them, a methyl group or an ethyl group is preferable.
- W 1 and W 2 are each independently a single bond or a divalent hydrocarbon group, and the divalent hydrocarbon group includes 2 to 10, especially alkylene groups such as ethylene group having 2 to 8 carbon atoms, propylene group (trimethylene group, methylethylene group), butylene group (tetramethylene group, methylpropylene group), hexamethylene group, octamethylene group, W 1 and W 2 are preferably a single bond, an ethylene group or a trimethylene group.
- X ′ is the same as the above X (that is, a glycidoxy group, a glycidoxyalkyl group, an alicyclic epoxy group, or an alicyclic epoxy group-containing alkyl group), or —SiR 3 (R is the same as above)
- a cyclic or alicyclic epoxy group for example, glycidoxy group, 3,4-epoxycyclohexyl group, 2,3-epoxycyclohexyl group, ⁇ -glycidoxypropyl group, 3,4-epoxycyclohexylethyl group, 2,3-epoxycyclohexylethyl group and the like are preferred.
- Q ′ is a diorganosilylene group, an organosiloxane residue (wherein the terminal of the residue may be a silicon atom or an oxygen atom), a silalkylene structure, a silarylene structure, and combinations thereof.
- Q ′ include the following groups. (Wherein g1 is the same as above)
- Z include a hydrogen atom and those shown below. (Wherein g is the same as above)
- ⁇ is 1 or 2
- n is an integer of 1 to 3, preferably 1 or 2.
- k is an integer of 0 to 2, preferably 1 or 2
- m is an integer of 1 to 5, preferably 2 or 3.
- Examples of the fluoropolyether group-containing polymer-modified organosilicon compound represented by the above formula (1) or (2) include those represented by the following formula.
- each of the repeating units constituting the fluorooxyalkyl group (monovalent fluorooxyalkylene group-containing polymer residue) or fluorooxyalkylene group (divalent fluorooxyalkylene group-containing polymer residue) represented by Rf The number of repeating units (or degree of polymerization) can be any number satisfying the above formulas (3) and (4).
- Examples of the method for preparing the fluoropolyether group-containing polymer-modified organosilicon compound represented by the above formula (1) include the following methods. First, it has a fluoropolyether group-containing polymer having a reactive group such as an acid fluoride group, an acid halide group, an acid anhydride group, an ester group, a carboxylic acid group, and an amide group at the molecular chain end, and an olefin such as an alkenyl group.
- a reactive group such as an acid fluoride group, an acid halide group, an acid anhydride group, an ester group, a carboxylic acid group, and an amide group at the molecular chain end
- an olefin such as an alkenyl group.
- a nucleophilic agent and a fluorine-based organic solvent such as 1,3-bis (trifluoromethyl) benzene or tetrahydrofuran or a non-fluorine-based organic solvent as a solvent are mixed, and 0 to 80 ° C., preferably 50 to 70 ° C., More preferably, aging is performed at about 60 ° C. for 1 to 6 hours, preferably 3 to 5 hours, more preferably about 4 hours.
- fluoropolyether group-containing polymer having a reactive group at the molecular chain terminal include the following. (In the formula, Rf and ⁇ are the same as above.)
- nucleophile having an olefin such as an alkenyl group, allyl magnesium halide, 3-butenyl magnesium halide, 4-pentenyl magnesium halide, 5-hexenyl magnesium halide, and the like can be used. It is also possible to use a corresponding lithium reagent.
- the amount of the nucleophile used is 2 to 5 equivalents, more preferably 2.5 to 3.5, with respect to 1 equivalent of the reactive group of the fluoropolyether group-containing polymer having a reactive group at the molecular chain end. The equivalent amount, more preferably about 3 equivalents, can be used.
- an aqueous layer and an organic solvent layer are separated by a liquid separation operation.
- the obtained organic solvent layer is more preferably washed with a non-fluorine organic solvent, and the solvent is distilled off to obtain a fluoropolyester having a hydroxyl group and an olefin moiety at the molecular chain end represented by the following formula (a).
- An ether group-containing polymer is obtained. (In the formula, Rf and ⁇ are the same as above. U is a divalent hydrocarbon group.)
- U is a divalent hydrocarbon group, specifically, a methylene group, an ethylene group, a propylene group (trimethylene group, methylethylene group), a butylene group (tetramethylene group, methylpropylene group). ), An alkylene group having 1 to 8 carbon atoms such as a hexamethylene group or an octamethylene group, or an alkylene group containing an arylene group having 6 to 8 carbon atoms such as a phenylene group (for example, an alkylene / arylene group having 7 to 8 carbon atoms) ) And the like.
- U is preferably a linear alkylene group having 1 to 4 carbon atoms.
- the hydrogen atom of the hydroxyl group of the fluoropolyether group-containing polymer having a hydroxyl group and an olefin moiety at the molecular chain end represented by the formula (a) obtained above is substituted with another group.
- Examples of a method for substituting a hydrogen atom of a hydroxyl group with a silyl group represented by —SiR 3 include, for example, a fluoropolyether group-containing polymer having a hydroxyl group and an olefin moiety at the molecular chain end represented by the formula (a) and a silylating agent
- a solvent such as a fluorine-based organic solvent and a non-fluorine-based organic solvent is used if necessary, and 0 to 80 ° C., preferably 40 to 60 ° C., more preferably Aging is carried out at a temperature of about 50 ° C.
- the presence of a dehydrogenation catalyst such as a platinum group metal catalyst or a boron catalyst may be prepared by combining a fluoropolyether group-containing polymer having a hydroxyl group and an olefin moiety at the molecular chain end represented by formula (a) with hydrosilane. Then, using a solvent such as a fluorinated organic solvent and a non-fluorinated organic solvent, the temperature is 0 to 60 ° C., preferably 15 to 35 ° C., more preferably about 25 ° C., 10 minutes to 24 hours, preferably 30 minutes. The dehydrogenation reaction is performed for ⁇ 2 hours, more preferably about 1 hour.
- silylating agent for example, silyl halide, silyl triflate, and the like can be used, and specifically, trimethylsilyl chloride, triethylsilyl chloride, tert-butyldimethyl chloride, triisopropylsilyl chloride, triphenylsilyl chloride. , Trimethylsilyl bromide, trimethylsilyl triflate, triethylsilyl triflate, tert-butyldimethyl triflate, triisopropylsilyl triflate, etc.
- the amount used may be a full amount having a hydroxyl group and an olefin moiety at the molecular chain end represented by the formula (a).
- 1 to 10 equivalents On 1 equivalent of hydroxyl group of the Roporieteru group-containing polymer, 1 to 10 equivalents, more preferably 1 to 4 equivalents, can be used more preferably about 2 equivalents.
- hydrosilanes include trimethylsilane, triethylsilane, tert-butyldimethylsilane, triisopropylsilane, triphenylsilane, and the like, and the amount used thereof is a hydroxyl group and an olefin at the molecular chain end represented by the formula (a).
- 1 to 5 equivalents, more preferably 1.5 to 3 equivalents, and still more preferably about 2 equivalents can be used with respect to 1 equivalent of hydroxyl group of the fluoropolyether group-containing polymer having a moiety.
- an aqueous layer and an organic solvent layer are separated by a liquid separation operation.
- the obtained organic solvent layer is more preferably washed with a non-fluorine organic solvent, and the solvent is distilled off to obtain a fluoro having a silyl group and an olefin moiety at the molecular chain terminal represented by the following formula (b).
- a polyether group-containing polymer is obtained. (In the formula, Rf, R, U and ⁇ are the same as above.)
- a hydroxyl group and an olefin moiety are present at the molecular chain end represented by the formula (a).
- a fluoropolyether group-containing polymer and an organosilicon compound having a group represented by SiH group and —Q′—W 2 —X ′ are combined with a fluorine-based organic solvent and a non-fluorine-based compound in the presence of a dehydrogenation catalyst such as a boron catalyst.
- a solvent such as an organic solvent at a temperature of 0 to 60 ° C., preferably 15 to 35 ° C., more preferably about 25 ° C., for 10 minutes to 24 hours, preferably 30 minutes to 2 hours, more preferably about 1 hour.
- the dehydrogenation reaction is performed, or the hydroxyl group of the fluoropolyether group-containing polymer having a hydroxyl group and an olefin moiety at the molecular chain end represented by the formula (a), for example, both ends represented by HQ′-H Giorga Hydrogen silyl group (e.g., -Si (CH 3) 2 H, etc.) organosiloxane compound bifunctional being blocked by, a SiH group at one terminal of the organo sill alkylene compounds or organo sill arylene compound, and the The reaction is carried out under the same conditions to once convert the hydrogen atom of the hydroxyl group to —Q′—H, etc., and then the other terminal SiH group further has an alkenyl group and an X ′ group in the molecule.
- HQ′-H Giorga Hydrogen silyl group e.g., -Si (CH 3) 2 H, etc.
- organosiloxane compound bifunctional being blocked by
- an organosilicon compound having a SiH group and a group represented by —Q′—W 2 —X ′, and both ends represented by HQ′—H are blocked with a diorganohydrogensilyl group
- Examples of the bifunctional organosiloxane compound, organosilalkylene compound, and organosilarylene compound include those shown below. (In the formula, g is the same as above, e is an integer of 0 to 3, and c is an integer of 1 to 4.)
- the amount of these compounds used is 1 to 10 equivalents, more preferably 1.2 to 1 equivalent of the hydroxyl group of the fluoropolyether group-containing polymer having a hydroxyl group and an olefin moiety at the molecular chain end represented by the formula (a). Up to 5 equivalents can be used.
- Examples of the compound having an alkenyl group and an X ′ group in the molecule include allyl glycidyl ether, 1,2-epoxy-4-vinylcyclohexane, 1,2-epoxy-3-vinylcyclohexane, and the like.
- the amount used is that of a reaction product of a fluoropolyether group-containing polymer having a hydroxyl group and an olefin moiety at the molecular chain end represented by the formula (a) and a compound in which both ends are blocked with diorganohydrogensilyl groups.
- 1 to 10 equivalents, more preferably 1.1 to 4 equivalents, can be used with respect to 1 equivalent of the terminal SiH group.
- an aqueous layer and an organic solvent layer are separated by a liquid separation operation.
- the obtained organic solvent layer is more preferably washed with a non-fluorine organic solvent, and the solvent is distilled off, thereby having an olefin moiety at the molecular chain terminal represented by the following formula (c), and a hydroxyl group
- a fluoropolyether group-containing polymer in which is substituted with an organosilicon compound group is obtained.
- Examples of a method for substituting a hydrogen atom of a hydroxyl group with a terminal unsaturated group include, for example, a fluoropolyether group-containing polymer having a hydroxyl group and an olefin moiety at the molecular chain end represented by the formula (a), and an olefin introducing agent.
- use additives such as tetrabutylammonium halide and alkali metal halide, and solvents such as fluorinated organic solvents and non-fluorinated organic solvents.
- Aging is carried out at a temperature of 0 to 90 ° C., preferably 60 to 80 ° C., more preferably about 70 ° C. for 1 to 25 hours, preferably 3 to 10 hours, more preferably 5 to 8 hours.
- allyl halide and the like can be used as the olefin introducing agent.
- allyl chloride, allyl bromide, allyl iodide, 4-chloro-1-butene, 4-bromo-1-butene, 4 -Iodo-1-butene, 5-chloro-1-pentene, 5-bromo-1-pentene, 5-iodo-1-pentene, etc., and the amount used is a molecular chain represented by the formula (a) 1 to 10 equivalents, more preferably 2.5 to 6 equivalents, and still more preferably about 5 equivalents can be used per 1 equivalent of hydroxyl group of the fluoropolyether group-containing polymer having a hydroxyl group and an olefin moiety at the terminal.
- an aqueous layer and an organic solvent layer are separated by a liquid separation operation.
- the obtained organic solvent layer is more preferably washed with a non-fluorine organic solvent, and the solvent is distilled off to obtain a fluoropolyether group having an olefin moiety at the end of the molecular chain represented by the following formula (d).
- a containing polymer is obtained. (In the formula, Rf, U, and ⁇ are the same as above. V is a single bond or a divalent hydrocarbon group.)
- V is a single bond or a divalent hydrocarbon group.
- the divalent hydrocarbon group include a methylene group, an ethylene group, and a propylene group (trimethylene group, methylethylene group). ), Butylene groups (tetramethylene group, methylpropylene group), hexamethylene groups, octamethylene groups and other alkylene groups having 1 to 8 carbon atoms, and alkylene groups containing 6 to 8 carbon atoms arylene groups such as phenylene groups (for example, And an alkylene / arylene group having 7 to 8 carbon atoms).
- V is preferably a methylene group.
- any of the fluoropolyether group-containing polymer having an olefin moiety at the molecular chain end represented by the formulas (a) to (d) obtained above and an organosilicon compound having two or more SiH groups in the molecule In the presence of a hydrosilylation reaction catalyst such as a toluene solution of a chloroplatinic acid / vinylsiloxane complex at a temperature of 40 to 120 ° C., preferably 60 to 100 ° C., more preferably about 80 ° C., preferably 1 to 72 hours, preferably Aging is performed for 3 to 36 hours, more preferably 5 to 24 hours.
- a hydrosilylation reaction catalyst such as a toluene solution of a chloroplatinic acid / vinylsiloxane complex at a temperature of 40 to 120 ° C., preferably 60 to 100 ° C., more preferably about 80 ° C., preferably 1 to 72 hours, preferably Aging is performed for 3 to 36 hours, more
- the organic silicon compound having two or more SiH groups in the molecule is preferably a compound represented by the following formula. (Wherein R 1 , R 2 , g and j are the same as above, i is an integer of 2 to 4, preferably 2, and i + j is an integer of 3 to 10, preferably 3 to 5) .)
- organosilicon compounds having two or more SiH groups in the molecule include those shown below. (Wherein g1 is the same as above)
- the amount of the organosilicon compound having two or more SiH groups in the molecule is determined based on the terminal aliphatic group of the fluoropolyether group-containing polymer having an olefin moiety at the molecular chain end represented by the above formulas (a) to (d). 1 to 15 equivalents, more preferably 1.1 to 10 equivalents, and still more preferably 1.2 to 6 equivalents can be used per 1 equivalent of saturated group.
- a hydrosilylation reaction catalyst such as a toluene solution of a chloroplatinic acid / vinylsiloxane complex
- examples of the compound having an olefin moiety and an epoxy group at the molecular chain terminal include allyl glycidyl ether, 1,2-epoxy-4-vinylcyclohexane, 1,2-epoxy-3-vinylcyclohexane, and the like.
- the amount of the compound having an olefin moiety and an epoxy group at the molecular chain terminal is any of the fluoropolyether group-containing polymers having an olefin moiety at the molecular chain terminal represented by the formulas (a) to (d) obtained above. 1 to 15 equivalents, more preferably 1.1 to 10 equivalents, still more preferably 1.2 to 1 equivalent with respect to 1 equivalent of terminal SiH groups in the reaction product of the organosilicon compound having two or more SiH groups in the heel molecule. 6 equivalents can be used.
- the fluoropolyether group-containing polymer-modified organosilicon compound represented by the above formula (1) can be obtained by distilling off the solvent and unreacted substances under reduced pressure.
- the reaction mentioned above can be performed independently or continuously.
- the fluoropolyether group-containing polymer-modified organosilicon compound represented by the above formula (2) for example, the fluoropolyether group-containing polymer-modified organosilicon compound represented by the above formula (1)
- the surface treating agent of the present invention contains a fluoropolyether group-containing polymer-modified organosilicon compound represented by the above formula (1) or (2).
- the surface treatment agent of the present invention further includes the following general formula (5).
- A is a fluorine atom or a monovalent fluorine-containing group whose terminal is a —CF 3 group
- Rf ′ is a divalent fluorooxyalkylene group-containing polymer residue.
- the polymer may contain a fluoropolyether group-containing polymer (hereinafter referred to as a non-functional polymer).
- A is a fluorine atom or a monovalent fluorine-containing group whose terminal is a —CF 3 group, preferably a fluorine atom, a linear perfluoroalkyl group having 1 to 6 carbon atoms, Of these, —F, —CF 3 , —CF 2 CF 3 and —CF 2 CF 2 CF 3 are preferred.
- Rf ′ is a divalent fluorooxyalkylene group-containing polymer residue, and Rf ′ is preferably the following.
- p2 is an integer of 5 to 200, preferably 10 to 100
- q2 is an integer of 5 to 200, preferably 10 to 100
- r1 is an integer of 10 to 200, preferably 20 to 100
- t1 is an integer of 5 to 200, preferably an integer of 10 to 100
- t2 is an integer of 10 to 200, preferably 20 to 100
- t1 + p2 is an integer of 10 to 205, preferably 20 to 110
- q2 + p2 is 10 to 205, preferably 20 to 110 (Each repeating unit may be combined at random.)
- non-functional polymer represented by the formula (5) examples include the following. (In the formula, p2, q2, r1, t1, and t2 are the same as described above. Each repeating unit may be bonded at random.)
- the amount used when blending the non-functional polymer represented by the formula (5) is not particularly limited, but the mass of the fluoropolyether group-containing polymer-modified organosilicon compound represented by the formula (1) or (2) On the other hand, the range of 0.1 to 60% by mass, particularly 10 to 40% by mass is preferable, and if it is too much, an adhesion problem may occur.
- the surface treatment agent may contain a suitable solvent.
- suitable solvents include fluorine-modified aliphatic hydrocarbon solvents (perfluoroheptane, perfluorooctane, etc.), fluorine-modified aromatic hydrocarbon solvents (m-xylene hexafluoride (1,3-bis (trifluoro) Methyl) benzene), benzotrifluoride, etc.), fluorine-modified ether solvents (methyl perfluorobutyl ether, ethyl perfluorobutyl ether, perfluoro (2-butyltetrahydrofuran), etc.), fluorine-modified alkylamine solvents (perfluorotributylamine, Examples thereof include perfluorotripentylamine), hydrocarbon solvents (petroleum benzine, mineral spirits, toluene, xylene, etc.), and ketone solvents (acetone, methyl ethyl ketone,
- fluorine-modified solvents are desirable in terms of solubility and wettability, and in particular, m-xylene hexafluoride, perfluoro (2-butyltetrahydrofuran), perfluorotributylamine, ethyl perfluoro Butyl ether is preferred.
- the solvent may be a mixture of two or more thereof, but the fluoropolyether group-containing polymer-modified organosilicon compound represented by formula (1) or (2) and the non-functional polymer represented by formula (5) Is preferably dissolved uniformly.
- the optimum concentration of the fluorooxyalkylene group-containing polymer dissolved in the solvent varies depending on the treatment method, but is preferably 0.01 to 40% by mass, particularly 0.05 to 25% by mass in the surface treatment agent.
- the substrate to be treated with the surface treatment agent of the present invention is not particularly limited, and may be made of various materials such as paper, cloth, metal and oxide thereof, glass, plastic, ceramic, quartz and the like.
- the surface treating agent of the present invention can impart excellent water and oil repellency to the substrate. In particular, it exhibits excellent water and oil repellency for resin products such as resin films and eyeglass lenses.
- resin products such as resin films and eyeglass lenses.
- a resin product what consists of a thermoplastic resin is preferable, and specifically, the thermoplastic resin film (hard coat film) by which the hard coat process was carried out, it is more than pencil hardness 4H, and the hard coat is not given.
- thermoplastic resin film high hardness resin film
- thermoplastic resin film antireflection film
- it can also be applied to a metal substrate and exhibits good adhesion to duralumin and the like.
- the surface treatment agent of the present invention can be applied onto a substrate by a known method such as brushing, dipping, spraying, or vapor deposition.
- the heating method during the vapor deposition process may be either a resistance heating method or an electron beam heating method, and is not particularly limited.
- the post-treatment conditions vary depending on the post-treatment method. For example, when applied by vapor deposition or spray coating, when a resin film treated with SiO 2 is used as a base material, from room temperature (25 ° C.) The temperature can be in the range of 200 ° C. for 5 minutes to 36 hours, in particular 10 minutes to 24 hours, and may be post-treated under humidification. Particularly in the present invention, 10 minutes to 36 hours, particularly 30 minutes to 24 hours are sufficient even at room temperature.
- the thickness of the coating is appropriately selected depending on the type of substrate, but is usually 0.1 to 100 nm, particularly 1 to 25 nm.
- Articles to be treated with the surface treatment agent of the present invention include car navigation, mobile phones, digital cameras, digital video cameras, PDAs, portable audio players, car audio, game equipment, glasses lenses, camera lenses, lens filters, sunglasses , Medical equipment such as stomach cameras, copiers, PCs, liquid crystal displays, organic EL displays, plasma displays, touch panel displays, protective films, hard coat films, high-hardness resins, antireflection films, wearable terminals, etc.
- An optical article, a touch panel, an antireflection film, a quartz substrate, etc. used as a part are preferable.
- the surface treatment agent of the present invention can form a film on the article under mild conditions such as room temperature even for a short time, and the film exhibits excellent water and oil repellency and durability. It is useful as a water and oil repellent layer for eyeglass lenses, touch panel displays, hard coat films, high hardness resins, antireflection films, wearable terminals and the like.
- the high-hardness resin is, for example, a product obtained by molding a resin having a pencil hardness of 4H or higher, such as a product name Sylplus manufactured by Nippon Steel Chemical Co., Ltd., or a product name HD film manufactured by Gunze Co., which is promoted as a glass substitute film.
- it refers to a resin film obtained by molding the resin, but is not particularly limited to the above products.
- the article in which the antifouling surface layer is formed by the surface treatment agent containing the fluoropolyether group-containing polymer-modified organosilicon compound of the present invention can exhibit excellent wear durability.
- the resin in which the antifouling surface layer is formed by the surface treatment agent of the present invention can be suitably used particularly for applications requiring antifouling treatment on the surface, such as eyeglass lenses, sunglasses, touch panel displays, and antireflection films.
- the obtained compound 1 was confirmed by 1 H-NMR to have a structure represented by the following formula (D).
- the obtained compound 2 was confirmed by 1 H-NMR to have a structure represented by the following formula (G).
- 1 H-NMR ⁇ 0-0.5 (—OSi—C H 3 , —OSi (C H 3 ) 3 ) 45H ⁇ 0.5-0.9 (-CH 2 CH 2 C H 2 -Si-O -, - O-Si-C H 2 CH 2 CH 2 -) 8H ⁇ 1.5-2.0 (—C H 2 C H 2 CH 2 —Si—O—, —O—Si—CH 2 C H 2 CH 2 —) 12H ⁇ 2.5-4.0 (-CH 2 CH 2 C H 2 -O-C H 2 -C H -O-C H 2 -) 14H
- the obtained compound 3 was confirmed by 1 H-NMR to have a structure represented by the following formula (I).
- the obtained compound 4 was confirmed by 1 H-NMR to have a structure represented by the following formula (J).
- the fluoropolyether group-containing polymer represented by the following formula (K) was obtained by aging for time and distilling off the solvent and unreacted substances under reduced pressure.
- the obtained compound 5 was confirmed by 1 H-NMR to have a structure represented by the following formula (L).
- the obtained compound 6 was confirmed by 1 H-NMR to have a structure represented by the following formula (O).
- 1 H-NMR ⁇ 0-0.5 (-OSi (C H 3 ) 2 ) 18H ⁇ 0.5-0.9 (-CH 2 CH 2 C H 2 -Si-O -, - O-Si-C H 2 CH 2 -) 4H ⁇ 1.0-2.2 (—CH 2 —O—CH 2 C H 2 CH 2 —Si, —Si—CH 2 C H 2 —C H C H 2 CH—O—CHC H 2 C H 2 —) 11H ⁇ 2.8-3.0 (-C H -O-C H- ) 2H ⁇ 3.5-3.9 (—C H 2 —O—C H 2 CH 2 CH 2 —) 4H
- Examples 1 to 6, Comparative Examples 1 and 2 Preparation of surface treatment agent and formation of coating film
- the above-mentioned compounds 1 to 8 were dissolved in Novec 7200 (manufactured by 3M, ethyl perfluorobutyl ether) to a concentration of 20% by mass to prepare a surface treatment agent.
- the resin film (manufactured by Tygold) is washed by plasma treatment (Ar: 10 cc, O 2 : 80 cc, output: 250 W, time: 30 seconds), and 10 mg of the surface treatment agent is vacuumed thereon Vapor deposition was performed (processing conditions were pressure: 2.0 ⁇ 10 ⁇ 2 Pa, heating temperature: 700 ° C.), and a film having a thickness of 15 nm was formed after 24 hours in an atmosphere of 25 ° C. and humidity 50% RH.
- the resin film was made of polyethylene terephthalate, and the surface of the film was subjected to an acrylic hard coat treatment, and then the outermost surface was subjected to sputtering treatment with SiO 2 with a thickness of 100 nm.
- duralumin was vacuum-deposited under the same conditions as the resin film, and a film having a film thickness of 15 nm was formed after 30 minutes in an atmosphere at 80 ° C.
- the films formed using the compounds 1 to 6 were designated as Examples 1 to 6, and the films formed using the compounds 7 and 8 were designated as Comparative Examples 1 and 2.
- Example 1 to 6 and Comparative Examples 1 and 2 were evaluated by the following methods. All tests were performed at 25 ° C. and humidity 50% RH.
- the article surface-treated with the surface treating agent containing the fluoropolyether group-containing polymer-modified organosilicon compound of the present invention exhibits excellent wear durability.
- Articles that have been surface-treated with the surface treatment agent of the present invention are particularly effective as products that are assumed to be attached with oils and fats, such as touch panel displays, antireflection films, and eyeglass lenses.
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Abstract
Description
[1]
下記一般式(1)又は(2)
-SiR3
(式中、Rはそれぞれ独立に炭素数1~4のアルキル基又はフェニル基である。)
で表されるトリオルガノシリル基、又は下記式
-W1-Q’-W2-X’
(式中、X’はX又は-SiR3(Rは上記と同じ)であり、W1、W2はそれぞれ独立に単結合又は2価の炭化水素基であり、Q’はジオルガノシリレン基、オルガノシロキサン残基、シルアルキレン構造、シルアリーレン構造及びこれらの組合せから選ばれる構造を有する2価の基である。)
で表される基であり、αは1又は2である。]
で表されるフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物。
[2]
前記式(1)又は(2)において、αが1であり、Rfが下記一般式(3)で表される1価のフルオロオキシアルキレン基含有ポリマー残基である[1]記載のフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物。
[3]
前記式(1)又は(2)において、αが2であり、Rfが下記一般式(4)で表される2価のフルオロオキシアルキレン基含有ポリマー残基である[1]記載のフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物。
[4]
前記式(1)又は(2)において、Y1、Y2が、それぞれ独立に炭素数2~10のアルキレン基である[1]~[3]のいずれかに記載のフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物。
[5]
前記式(1)又は(2)において、Qが、下記式で示される基から選ばれる基である[1]~[4]のいずれかに記載のフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物。
[6]
前記式(1)において、Zが、水素原子、及び下記に示す基より選ばれる少なくとも1種である[1]~[5]のいずれかに記載のフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物。
[7]
上記一般式(1)又は(2)で表されるフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物が、下記式のいずれかで表されるものである[1]~[6]のいずれかに記載のフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物。
[8]
[1]~[7]のいずれかに記載のフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物を含む表面処理剤。
[9]
表面処理剤が、更に下記一般式(5)
で表されるフルオロポリエーテル基含有ポリマーを含有するものである[8]に記載の表面処理剤。
[10]
[9]記載の表面処理剤の硬化被膜を表面に有する物品。
-SiR3
(式中、Rはそれぞれ独立に炭素数1~4のアルキル基又はフェニル基である。)
で表されるトリオルガノシリル基、又は下記式
-W1-Q’-W2-X’
(式中、X’は上記Xと同じであるか、-SiR3(Rは上記と同じ)であり、W1、W2はそれぞれ独立に単結合又は2価の炭化水素基であり、Q’はジオルガノシリレン基、オルガノシロキサン残基、シルアルキレン構造、シルアリーレン構造及びこれらの組合せから選ばれる構造を有する2価の基である。)
で表される基であり、αは1又は2である。]
上記式(3),(4)において、dは1~3の整数であり、好ましくは1又は2であり、該単位(-CdF2d-)は直鎖状でも分岐状であってもよい。
また、主鎖にフルオロポリエーテル構造(1価のフルオロオキシアルキレン基含有ポリマー残基)を有し、分子鎖の片末端にエポキシ基を有し、これらがシロキサン結合、シルフェニレン結合又はシルアルキレン結合により連結された直鎖状ポリマー(αが1で、Rfが式(3)で表される1価のフルオロオキシアルキル基(1価のフルオロオキシアルキレン基含有ポリマー残基)であるフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物)は、主鎖にフルオロポリエーテル構造(2価のフルオロオキシアルキレン基含有ポリマー残基)を有し、分子鎖の両末端にエポキシ基を有し、これらがシロキサン結合、シルフェニレン結合又はシルアルキレン結合により連結された直鎖状ポリマー(αが2で、Rfが式(4)で表される2価のフルオロオキシアルキレン基(2価のフルオロオキシアルキレン基含有ポリマー残基)であるフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物)と比較して、得られる被膜に優れた耐摩耗性を付与することができる。
-SiR3
(式中、Rはそれぞれ独立に炭素数1~4のアルキル基又はフェニル基である。)
で表されるトリオルガノシリル基、又は下記式
-W1-Q’-W2-X’
(式中、X’は上記Xと同じであるか、SiR3(Rは上記と同じ)であり、W1、W2はそれぞれ独立に単結合又は2価の炭化水素基であり、Q’はジオルガノシリレン基、オルガノシロキサン残基(但し、該残基の末端はケイ素原子であっても酸素原子であってもよい)、シルアルキレン構造、シルアリーレン構造及びこれらの組合せから選ばれる構造を有する2価の基である。)
で表される基である。
X’は上記X(即ち、グリシドキシ基、グリシドキシアルキル基、脂環式エポキシ基、もしくは脂環式エポキシ基含有アルキル基)と同じであるか、-SiR3(Rは上記と同じ)と同じであり、環状又は脂環式エポキシ基(例えば、グリシドキシ基、3,4-エポキシシクロヘキシル基、2,3-エポキシシクロヘキシル基、γ-グリシドキシプロピル基、3,4-エポキシシクロヘキシルエチル基、2,3-エポキシシクロヘキシルエチル基など)が好ましい。
また、上記式(2)において、kは0~2の整数、好ましくは1又は2であり、mは1~5の整数、好ましくは2又は3である。
まず、分子鎖末端に酸フロライド基、酸ハライド基、酸無水物基、エステル基、カルボン酸基、アミド基などの反応性基を有するフルオロポリエーテル基含有ポリマーと、アルケニル基等のオレフィンを有する求核剤と、溶剤として例えば1,3-ビス(トリフルオロメチル)ベンゼン、テトラヒドロフランなどのフッ素系有機溶剤や非フッ素系有機溶剤を混合して、0~80℃、好ましくは50~70℃、より好ましくは約60℃で、1~6時間、好ましくは3~5時間、より好ましくは約4時間熟成する。
該求核剤の使用量は、上記分子鎖末端に反応性基を有するフルオロポリエーテル基含有ポリマーの反応性基1当量に対して、2~5当量、より好ましくは2.5~3.5当量、更に好ましくは約3当量用いることができる。
また、別法として、式(a)で表される分子鎖末端に水酸基及びオレフィン部位を有するフルオロポリエーテル基含有ポリマーとヒドロシランとを、白金族金属系触媒やホウ素触媒などの脱水素触媒の存在下、フッ素系有機溶剤及び非フッ素系有機溶剤などの溶剤を用いて0~60℃、好ましくは15~35℃、より好ましくは約25℃の温度で、10分~24時間、好ましくは30分~2時間、より好ましくは約1時間脱水素反応を行う。
また、ヒドロシランとしては、トリメチルシラン、トリエチルシラン、tert-ブチルジメチルシラン、トリイソプロピルシラン、トリフェニルシランなどが挙げられ、この使用量は、式(a)で表される分子鎖末端に水酸基及びオレフィン部位を有するフルオロポリエーテル基含有ポリマーの水酸基1当量に対して、1~5当量、より好ましくは1.5~3当量、更に好ましくは約2当量用いることができる。
この使用量は、式(a)で表される分子鎖末端に水酸基及びオレフィン部位を有するフルオロポリエーテル基含有ポリマーと両末端がジオルガノハイドロジェンシリル基で封鎖されている化合物との反応物の末端SiH基1当量に対して、1~10当量、より好ましくは1.1~4当量用いることができる。
水酸基の水素原子を末端不飽和基に置換する方法としては、例えば、式(a)で表される分子鎖末端に水酸基及びオレフィン部位を有するフルオロポリエーテル基含有ポリマーとオレフィン導入剤とを、アミン類やアルカリ金属系塩基などの塩基の存在下、必要によりテトラブチルアンモニウムハライド、アルカリ金属系ハライドなどの反応性を向上させる添加剤や、フッ素系有機溶剤及び非フッ素系有機溶剤などの溶剤を用い、0~90℃、好ましくは60~80℃、より好ましくは約70℃の温度で、1~25時間、好ましくは3~10時間、より好ましくは5~8時間熟成する。
で表されるフルオロポリエーテル基含有ポリマー(以下、無官能性ポリマーと称す)を含有してもよい。
また、Rf’は2価のフルオロオキシアルキレン基含有ポリマー残基であり、Rf’としては下記に示すものが好ましい。
上記溶剤はその2種以上を混合してもよいが、式(1)又は(2)で表されるフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物及び式(5)で表される無官能性ポリマーを均一に溶解させることが好ましい。なお、溶剤に溶解させるフルオロオキシアルキレン基含有ポリマーの最適濃度は、処理方法により異なるが、表面処理剤中0.01~40質量%、特に0.05~25質量%であることが好ましい。
本発明の表面処理剤は、前記基材に優れた撥水撥油性を付与することができる。特に樹脂フィルムやメガネレンズのような樹脂製品に対して、優れた撥水撥油性を示す。ここで、樹脂製品としては、熱可塑性樹脂からなるものが好ましく、具体的には、ハードコート処理された熱可塑性樹脂フィルム(ハードコートフィルム)、鉛筆硬度4H以上でありハードコートを施されていない熱可塑性樹脂フィルム(高硬度樹脂フィルム)又は反射防止層を備えた熱可塑性樹脂フィルム(反射防止フィルム)などが好ましく用いられる。
また、本発明においては、金属の基材にも塗工可能であり、ジュラルミン等に良好な密着性を示す。
実施例及び比較例は、下記合成例により得られる化合物を使用した。
反応容器に、テトラヒドロフラン150g、1,3-ビス(トリフルオロメチル)ベンゼン300gを混合し、0.7Mのアリルマグネシウムブロミド160mlを滴下した。続いて、下記式(A)
δ0-0.2(-Si(CH 3)2)24H
δ0.4-0.6(-CH2CH2CH 2-Si)4H
δ1.3-1.6(-CH2CH 2CH2-Si)4H
δ1.6-1.9(-CH 2CH2CH2-Si)4H
δ3.6-4.2(-SiH)2H
δ6.6-7.1(-C6 H 4)8H
1H-NMR
δ0-0.2(-Si(CH 3)2)24H
δ0.4-0.6(-CH2CH2CH 2-Si,-Si-CH 2CH2CH 2-)8H
δ0.9-1.3(-CH 2CH 2CH2-Si,-Si-CH2CH 2CH2-)12H
δ2.5-4.0(-CH2CH2CH 2 -O-CH 2 -CH-O-CH 2 -)14H
反応容器に、1,3-ビス(トリフルオロメチル)ベンゼン100g、DBU(ジアザビシクロウンデセン)8.2g(5.4×10-2mol)、下記式(B)
δ0-0.2(-OSi(CH 3)3)9H
δ2.4-2.6(-CH 2CH=CH2)4H
δ5.0-5.2(-CH2CH=CH 2)4H
δ5.7-5.9(-CH2CH=CH2)2H
δ0-0.2(-OSi(CH 3 )3,-OSi(CH 3 )2-)45H
δ0.3-0.6(-CH2CH2CH 2 -Si)4H
δ1.3-1.8(-CH 2 CH2CH2-Si,-CH2CH 2 CH2-Si)8H
δ3.3-3.6(-SiH)2H
δ0-0.5(-OSi-CH 3,-OSi(CH 3)3)45H
δ0.5-0.9(-CH2CH2CH 2-Si-O-,-O-Si-CH 2CH2CH2-)8H
δ1.5-2.0(-CH 2 CH 2 CH2-Si-O-,-O-Si-CH2CH 2 CH2-)12H
δ2.5-4.0(-CH2CH2CH 2 -O-CH 2 -CH-O-CH 2 -)14H
反応容器に、下記式(B)
δ0-0.2(-OSi(CH 3)2)36H
δ0.3-0.6(-CH2CH2CH 2-Si)4H
δ1.3-1.8(-CH 2CH2CH2-Si,-CH2CH 2CH2-Si)8H
δ3.3-3.6(-SiH)2H
δ0-0.5(-OSi(CH 3)2)36H
δ0.5-0.9(-CH2CH2CH 2-Si-O-,-O-Si-CH 2CH2-)8H
δ1.0-2.4(-CH 2 CH 2 CH2-Si-O-,-O-Si-CH2CH 2 -,-CH2CH 2 -CHCH 2 CH-O-CHCH 2 CH 2 -)26H
δ3.0-3.3(-CH-O-CH)4H
反応容器に、下記式(H)
δ0-0.5(-OSi(CH 3)2)36H
δ0.5-0.9(-CH2CH2CH 2-Si-O-,-O-Si-CH 2CH2CH2-)8H
δ1.5-2.0(-CH 2 CH 2 CH2-Si-O-,-O-Si-CH2CH 2 CH2-)12H
δ2.5-4.0(-CH2CH2CH 2 -O-CH 2 -CH-O-CH 2 -)14H
反応容器に、下記式(B)
δ0-0.4(-Si(CH 3)2,-Si-CH 2-Si)28H
δ0.4-0.8(-CH2CH2CH 2-Si)4H
δ1.2-2.0(-CH 2CH 2CH2-Si)8H
δ3.8-4.2(-SiH)2H
δ0-0.4(-Si(CH 3)2,-Si-CH 2-Si)28H
δ0.4-0.8(-CH2CH2CH 2-Si,-Si-CH 2 CH2CH2)8H
δ1.2-2.0(-CH 2CH 2CH2-Si,-Si-CH2CH 2CH)12H
δ2.5-4.0(-CH2CH2CH 2 -O-CH 2 -CH-O-CH 2 -)14H
反応容器に、下記式(M)
δ0-0.4(-OSi(CH 3)2-)18H
δ0.4-0.8(-CH2CH2CH 2 -Si)2H
δ1.3-1.8(-CH2CH 2 CH2-Si)2H
δ3.3-3.9(-CH 2 CH2CH2-Si)4H
δ4.6-4.9(-SiH)1H
δ0-0.5(-OSi(CH 3)2)18H
δ0.5-0.9(-CH2CH2CH 2-Si-O-,-O-Si-CH 2CH2-)4H
δ1.0-2.2(-CH2-O-CH2CH 2 CH2-Si,-Si-CH2CH 2 -CHCH 2 CH-O-CHCH 2 CH 2 -)11H
δ2.8-3.0(-CH-O-CH-)2H
δ3.5-3.9(-CH 2 -O-CH 2CH2CH2-)4H
表面処理剤の調製及び被膜の形成
上記化合物1~8を、濃度20質量%になるようにNovec 7200(3M社製、エチルパーフルオロブチルエーテル)に溶解させて表面処理剤を調製した。表面処理剤調製後、樹脂フィルム(タイゴールド社製)をプラズマ処理(Ar:10cc、O2:80cc、出力:250W、時間:30秒)で洗浄し、その上に上記表面処理剤10mgを真空蒸着し(処理条件は、圧力:2.0×10-2Pa、加熱温度:700℃)、25℃、湿度50%RHの雰囲気下で24時間後に膜厚15nmの被膜を形成した。なお、樹脂フィルムはポリエチレンテレフタレート製で、フィルム表面にアクリルハードコート処理を施した後、最表面にSiO2を100nmの厚さでスパッタ処理したものを用いた。
また、他の基材としてはジュラルミンを樹脂フィルムと同様の条件で、処理剤を真空蒸着し、80℃の雰囲気下で30分後に膜厚15nmの被膜を形成した。
化合物1~6を用いて形成された被膜を実施例1~6、化合物7,8を用いて形成された被膜を比較例1,2とした。
得られた被膜において、布(ベンコット(BEMCOT M-3II))に対する耐摩耗性を、トライボギアTYPE:30S(新東科学社製)を用いて測定した。
下記の試験条件により、水接触角が100°未満になった時点で試験終了とした。水接触角100°以上を保つ摩耗回数により耐摩耗性の評価とした。
接触面積:10mm×30mm
荷重:1.5kg
試験条件
布:BEMCOT M-3II(旭化成社製)
移動距離(片道):20mm
移動速度:1,800mm/分
荷重:0.5kg/cm2
また、水接触角は、接触角計DropMaster(協和界面科学社製)を用いて、被膜の水(液滴:2μl)に対する接触角を測定した。なお、水接触角は、2μlの液滴をサンプル表面に着滴させた後、1秒後に測定した。
Claims (10)
- 下記一般式(1)又は(2)
[式中、Rfは1価又は2価のフルオロオキシアルキレン基含有ポリマー残基であり、Y1、Y2はそれぞれ独立に単結合又は2価の炭化水素基であり、Qは独立に2~4価の、直鎖状、分岐鎖状もしくは環状オルガノシロキサン残基、シルアルキレン構造、シルアリーレン構造、ジオルガノシリレン基、モノオルガノシリレン基、ケイ素原子、炭素原子、又はこれらの組合せもしくはこれらとアルキレン基との組合せであり、Xは独立にグリシドキシ基、グリシドキシアルキル基、脂環式エポキシ基、もしくは脂環式エポキシ含有アルキル基であり、kは0~2の整数、mは1~5の整数、nは1~3の整数であり、Zは独立に、水素原子、下記式
-SiR3
(式中、Rはそれぞれ独立に炭素数1~4のアルキル基又はフェニル基である。)
で表されるトリオルガノシリル基、又は下記式
-W1-Q’-W2-X’
(式中、X’はX又は-SiR3(Rは上記と同じ)であり、W1、W2はそれぞれ独立に単結合又は2価の炭化水素基であり、Q’はジオルガノシリレン基、オルガノシロキサン残基、シルアルキレン構造、シルアリーレン構造及びこれらの組合せから選ばれる構造を有する2価の基である。)
で表される基であり、αは1又は2である。]
で表されるフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物。 - 前記式(1)又は(2)において、Y1、Y2が、それぞれ独立に炭素数2~10のアルキレン基である請求項1~3のいずれか1項に記載のフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物。
- 請求項1~7のいずれか1項に記載のフルオロポリエーテル基含有ポリマー変性有機ケイ素化合物を含む表面処理剤。
- 請求項9記載の表面処理剤の硬化被膜を表面に有する物品。
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| JP7239866B1 (ja) | 2021-10-08 | 2023-03-15 | ダイキン工業株式会社 | フルオロポリエーテル基含有エポキシ化合物 |
| WO2024262489A1 (ja) * | 2023-06-22 | 2024-12-26 | 信越化学工業株式会社 | フルオロポリエーテル系硬化性組成物及び硬化物並びに物品 |
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| JP2022174280A (ja) * | 2021-03-30 | 2022-11-22 | ダイキン工業株式会社 | フルオロポリエーテル基含有シラン化合物 |
| JP7440790B2 (ja) | 2021-03-30 | 2024-02-29 | ダイキン工業株式会社 | フルオロポリエーテル基含有シラン化合物 |
| JP7239866B1 (ja) | 2021-10-08 | 2023-03-15 | ダイキン工業株式会社 | フルオロポリエーテル基含有エポキシ化合物 |
| WO2023058419A1 (ja) * | 2021-10-08 | 2023-04-13 | ダイキン工業株式会社 | フルオロポリエーテル基含有エポキシ化合物 |
| JP2023057030A (ja) * | 2021-10-08 | 2023-04-20 | ダイキン工業株式会社 | フルオロポリエーテル基含有エポキシ化合物 |
| WO2024262489A1 (ja) * | 2023-06-22 | 2024-12-26 | 信越化学工業株式会社 | フルオロポリエーテル系硬化性組成物及び硬化物並びに物品 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6984656B2 (ja) | 2021-12-22 |
| US20210171799A1 (en) | 2021-06-10 |
| TWI787264B (zh) | 2022-12-21 |
| JPWO2018216406A1 (ja) | 2020-02-27 |
| US11820912B2 (en) | 2023-11-21 |
| KR20200013687A (ko) | 2020-02-07 |
| KR102565511B1 (ko) | 2023-08-10 |
| TW201906895A (zh) | 2019-02-16 |
| CN110678497B (zh) | 2022-09-16 |
| CN110678497A (zh) | 2020-01-10 |
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