WO2016098305A1 - 硬化性オルガノポリシロキサン組成物、その硬化物、および硬化皮膜の形成方法 - Google Patents
硬化性オルガノポリシロキサン組成物、その硬化物、および硬化皮膜の形成方法 Download PDFInfo
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- WO2016098305A1 WO2016098305A1 PCT/JP2015/006050 JP2015006050W WO2016098305A1 WO 2016098305 A1 WO2016098305 A1 WO 2016098305A1 JP 2015006050 W JP2015006050 W JP 2015006050W WO 2016098305 A1 WO2016098305 A1 WO 2016098305A1
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- sio
- carbon atoms
- curable organopolysiloxane
- organopolysiloxane composition
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- 125000001827 mesitylenyl group Chemical group [H]C1=C(C(*)=C(C([H])=C1C([H])([H])[H])C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- VMGSQCIDWAUGLQ-UHFFFAOYSA-N n',n'-bis[2-(dimethylamino)ethyl]-n,n-dimethylethane-1,2-diamine Chemical compound CN(C)CCN(CCN(C)C)CCN(C)C VMGSQCIDWAUGLQ-UHFFFAOYSA-N 0.000 description 1
- CIXSDMKDSYXUMJ-UHFFFAOYSA-N n,n-diethylcyclohexanamine Chemical compound CCN(CC)C1CCCCC1 CIXSDMKDSYXUMJ-UHFFFAOYSA-N 0.000 description 1
- DIAIBWNEUYXDNL-UHFFFAOYSA-N n,n-dihexylhexan-1-amine Chemical compound CCCCCCN(CCCCCC)CCCCCC DIAIBWNEUYXDNL-UHFFFAOYSA-N 0.000 description 1
- XTAZYLNFDRKIHJ-UHFFFAOYSA-N n,n-dioctyloctan-1-amine Chemical compound CCCCCCCCN(CCCCCCCC)CCCCCCCC XTAZYLNFDRKIHJ-UHFFFAOYSA-N 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- 125000006606 n-butoxy group Chemical group 0.000 description 1
- 125000003506 n-propoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 125000005187 nonenyl group Chemical group C(=CCCCCCCC)* 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- DLRJIFUOBPOJNS-UHFFFAOYSA-N phenetole Chemical compound CCOC1=CC=CC=C1 DLRJIFUOBPOJNS-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000005054 phenyltrichlorosilane Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- SBYHFKPVCBCYGV-UHFFFAOYSA-N quinuclidine Chemical compound C1CC2CCN1CC2 SBYHFKPVCBCYGV-UHFFFAOYSA-N 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007763 reverse roll coating Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 125000005920 sec-butoxy group Chemical group 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 125000004213 tert-butoxy group Chemical group [H]C([H])([H])C(O*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- TUQOTMZNTHZOKS-UHFFFAOYSA-N tributylphosphine Chemical compound CCCCP(CCCC)CCCC TUQOTMZNTHZOKS-UHFFFAOYSA-N 0.000 description 1
- ORVMIVQULIKXCP-UHFFFAOYSA-N trichloro(phenyl)silane Chemical compound Cl[Si](Cl)(Cl)C1=CC=CC=C1 ORVMIVQULIKXCP-UHFFFAOYSA-N 0.000 description 1
- WLPUWLXVBWGYMZ-UHFFFAOYSA-N tricyclohexylphosphine Chemical compound C1CCCCC1P(C1CCCCC1)C1CCCCC1 WLPUWLXVBWGYMZ-UHFFFAOYSA-N 0.000 description 1
- UMFJXASDGBJDEB-UHFFFAOYSA-N triethoxy(prop-2-enyl)silane Chemical compound CCO[Si](CC=C)(OCC)OCC UMFJXASDGBJDEB-UHFFFAOYSA-N 0.000 description 1
- RXJKFRMDXUJTEX-UHFFFAOYSA-N triethylphosphine Chemical compound CCP(CC)CC RXJKFRMDXUJTEX-UHFFFAOYSA-N 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- FPZZZGJWXOHLDJ-UHFFFAOYSA-N trihexylphosphane Chemical compound CCCCCCP(CCCCCC)CCCCCC FPZZZGJWXOHLDJ-UHFFFAOYSA-N 0.000 description 1
- LFRDHGNFBLIJIY-UHFFFAOYSA-N trimethoxy(prop-2-enyl)silane Chemical compound CO[Si](OC)(OC)CC=C LFRDHGNFBLIJIY-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- RMZAYIKUYWXQPB-UHFFFAOYSA-N trioctylphosphane Chemical compound CCCCCCCCP(CCCCCCCC)CCCCCCCC RMZAYIKUYWXQPB-UHFFFAOYSA-N 0.000 description 1
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- KCTAHLRCZMOTKM-UHFFFAOYSA-N tripropylphosphane Chemical compound CCCP(CCC)CCC KCTAHLRCZMOTKM-UHFFFAOYSA-N 0.000 description 1
- COIOYMYWGDAQPM-UHFFFAOYSA-N tris(2-methylphenyl)phosphane Chemical compound CC1=CC=CC=C1P(C=1C(=CC=CC=1)C)C1=CC=CC=C1C COIOYMYWGDAQPM-UHFFFAOYSA-N 0.000 description 1
- UYUUAUOYLFIRJG-UHFFFAOYSA-N tris(4-methoxyphenyl)phosphane Chemical compound C1=CC(OC)=CC=C1P(C=1C=CC(OC)=CC=1)C1=CC=C(OC)C=C1 UYUUAUOYLFIRJG-UHFFFAOYSA-N 0.000 description 1
- WXAZIUYTQHYBFW-UHFFFAOYSA-N tris(4-methylphenyl)phosphane Chemical compound C1=CC(C)=CC=C1P(C=1C=CC(C)=CC=1)C1=CC=C(C)C=C1 WXAZIUYTQHYBFW-UHFFFAOYSA-N 0.000 description 1
- 125000005065 undecenyl group Chemical group C(=CCCCCCCCCC)* 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- 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
- 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
- C08G59/40—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 curing agents used
- C08G59/66—Mercaptans
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08L83/04—Polysiloxanes
- C08L83/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08L83/04—Polysiloxanes
- C08L83/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
-
- C—CHEMISTRY; METALLURGY
- 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
- 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
- C09D183/04—Polysiloxanes
- C09D183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- C—CHEMISTRY; METALLURGY
- 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
- 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
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
-
- C—CHEMISTRY; METALLURGY
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
-
- 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
- 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
- C08G77/04—Polysiloxanes
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- 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
- 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
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/28—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen sulfur-containing groups
Definitions
- the present invention relates to a curable organopolysiloxane composition, a cured product thereof, and a method for forming a cured film using the composition.
- Patent Document 1 proposes a curable organopolysiloxane composition comprising an epoxy group-containing organopolysiloxane, a curing agent or a curing catalyst
- Patent Document 2 discloses an epoxy group-containing organopolysiloxane, a phenolic compound.
- a curable organopolysiloxane composition comprising a linear organopolysiloxane having at least two hydroxyl groups and a curing accelerator has been proposed.
- such a curable organopolysiloxane composition must be cured by heating to 150 ° C., and it is difficult to quickly cure at a relatively low temperature of 30 ° C. or less.
- An object of the present invention is to provide a curable organopolysiloxane composition that has a good curability even at a relatively low temperature of 30 ° C. or less and that forms a cured film having excellent adhesion to the coating, and the coating It is in providing the hardened
- Another object of the present invention is to provide a method for forming a cured film at a relatively low temperature.
- the curable organopolysiloxane composition of the present invention comprises (A) Average composition formula: X a R 1 b SiO (4-ab) / 2 (In the formula, X is at least one epoxy group selected from the group consisting of a glycidoxyalkyl group, an epoxycycloalkylalkyl group, and an epoxyalkyl group, and R 1 is a hydrogen atom having 1 to 12 carbon atoms.
- An epoxy group-containing organopolysiloxane represented by: (B) Compound having at least two mercapto groups in one molecule ⁇ Amount of mercapto group in component (B) from 0.3 to 3 moles per mole of epoxy group in component (A) ⁇ And (C) an amine compound having no NH bond and / or a phosphine compound having no PH bond ⁇ 0.01 to 10 with respect to the total amount of the components (A) to (C) Amount to be mass%
- the cured product of the present invention is characterized by curing the above curable organopolysiloxane composition.
- the method for forming a cured film of the present invention is characterized in that the curable organopolysiloxane composition is applied to an object to be coated and cured at ⁇ 5 to 30 ° C.
- the curable organopolysiloxane composition of the present invention is characterized in that it has good curability at a relatively low temperature and can form a cured film having excellent adhesion to an object to be coated. Further, the method for forming a cured film of the present invention is characterized in that the curable organopolysiloxane composition can be rapidly cured at a relatively low temperature.
- the epoxy group-containing organopolysiloxane (A) is the main component of the present composition, and the average composition formula: X a R 1 b SiO (4-ab) / 2 It is represented by
- X is at least one epoxy group selected from the group consisting of a glycidoxyalkyl group, an epoxycycloalkylalkyl group, and an epoxyalkyl group.
- the glycidoxyalkyl group include a 2-glycidoxyethyl group, a 3-glycidoxypropyl group, and a 4-glycidoxybutyl group.
- the epoxycycloalkylalkyl group include a 2- (3,4-epoxycyclohexyl) ethyl group and a 3- (3,4-epoxycyclohexyl) propyl group.
- the epoxyalkyl group include 2,3-epoxypropyl group, 3,4-epoxybutyl group, and 4,5-epoxypentyl group.
- the component (A) has at least two epoxy groups (X) in one molecule.
- R 1 is a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, a hydroxyl group, or An alkoxy group having 1 to 6 carbon atoms.
- alkyl group examples include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, and a dodecyl group. From the viewpoint, a methyl group is preferable.
- alkenyl group examples include vinyl group, allyl group, butenyl group, pentenyl group, hexenyl group, heptenyl group, octenyl group, nonenyl group, decenyl group, undecenyl group, and dodecenyl group.
- a vinyl group, an allyl group, a hexenyl group, and an octenyl group are preferred.
- aryl group examples include a phenyl group, a tolyl group, a xylyl group, a naphthyl group, a biphenyl group, and a phenoxyphenyl group, and a phenyl group, a tolyl group, and a naphthyl group are preferable from the viewpoint of economy.
- an aryl group, particularly a phenyl group, into the organopolysiloxane of the component (A) the compatibility with the component (B) is improved, and the weather resistance of the resulting cured product tends to be improved. .
- aralkyl group examples include a benzyl group, a phenethyl group, and a methylphenylmethyl group. Furthermore, groups in which some or all of the hydrogen atoms bonded to these alkyl groups, alkenyl groups, aryl groups, or aralkyl groups are substituted with halogen atoms such as chlorine atoms and bromine atoms are also exemplified.
- alkoxy group include a methoxy group, an ethoxy group, an n-propoxy group, an i-propoxy group, an n-butoxy group, a sec-butoxy group, and a tert-butoxy group.
- R 1 may have two or more of these groups.
- a is a number satisfying 0 ⁇ a ⁇ 1, preferably 0 ⁇ a ⁇ 0.6, or 0 ⁇ a ⁇ 0.4, indicating the ratio of epoxy groups to silicon atoms.
- b is a hydrogen atom relative to a silicon atom, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, a hydroxyl group Or a number satisfying 0 ⁇ b ⁇ 3 indicating the proportion of the alkoxy group having 1 to 6 carbon atoms.
- the sum of a and b is a number satisfying 0.8 ⁇ a + b ⁇ 3, preferably 1 ⁇ a + b ⁇ 2.2 or 1 ⁇ a + b ⁇ 2.0.
- a is a number within the above range
- the resulting curable organopolysiloxane composition has good curability at relatively low temperatures, and the resulting cured product has good mechanical strength. It is.
- cured material improves that b is a number within the said range.
- the sum of a and b is within the above range, the resulting curable organopolysiloxane composition has good curability at a relatively low temperature, and the resulting cured product has good mechanical strength. Because.
- the molecular weight of the component (A) is not particularly limited, but the weight average molecular weight measured by gel permeation chromatography is preferably 1,000 or more and 50,000 or less.
- the weight average molecular weight of the component (A) is not less than the lower limit of the above range, the resulting cured product has good mechanical properties, and on the other hand, when it is not more than the upper limit of the above range, the resulting curable organo This is because the curing rate of the polysiloxane composition is improved.
- Examples of the component (A) include one or a mixture of two or more organopolysiloxanes represented by the following average unit formula.
- Me, Ph, Vi, Ep, and Ep ′ represent a methyl group, a phenyl group, a vinyl group, a 3-glycidoxypropyl group, and a 2- (3,4-epoxycyclohexyl) ethyl group, respectively.
- x1, x2, x3, and x4 are positive numbers, respectively, and the sum of x1, x2, x3, and x4 is 1 in one molecule.
- the compound of a component is a component for reacting with the epoxy group in (A) component and hardening this composition.
- the component (B) is not particularly limited as long as it has at least two mercapto groups in one molecule.
- (B1) average composition formula: Y c R 2 d SiO (4-cd) / 2 Or (B2) a thiol compound having at least two mercapto groups in one molecule.
- Y is at least one mercapto group selected from the group consisting of a mercaptoalkyl group and a mercaptoaryl group.
- the mercaptoalkyl group include a 3-mercaptopropyl group, a 4-mercaptobutyl group, and a 6-mercaptohexyl group.
- mercaptoaryl include a 4-mercaptophenyl group, a 4-mercaptomethylphenyl group, and a 4- (2-mercaptoethyl) phenyl group.
- the component (B1) has at least two mercapto groups (Y) in one molecule.
- R 2 is a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, a hydroxyl group, or An alkoxy group having 1 to 6 carbon atoms.
- the alkyl group include the same groups as those described above for R 1, and a methyl group is preferable from the viewpoints of economy and heat resistance.
- Examples of the alkenyl group include the same groups as those described above for R 1, and a vinyl group, an allyl group, a hexenyl group, and an octenyl group are preferable from the viewpoint of economy and reactivity.
- Examples of the aryl group include the same groups as those described above for R 1, and a phenyl group, a tolyl group, and a naphthyl group are preferable from the viewpoint of economy.
- Examples of the aralkyl group include the same groups as those described above for R 1 .
- alkyl groups groups in which some or all of the hydrogen atoms bonded to these alkyl groups, alkenyl groups, aryl groups, or aralkyl groups are substituted with halogen atoms such as chlorine atoms and bromine atoms are also exemplified.
- alkoxy group examples include the same groups as those described above for R 1 .
- R 2 may have two or more of these groups.
- c is a number satisfying 0 ⁇ c ⁇ 1, preferably 0 ⁇ c ⁇ 0.6, or 0 ⁇ c ⁇ 0.4, indicating the ratio of mercapto groups to silicon atoms.
- d is a hydrogen atom relative to a silicon atom, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, a hydroxyl group Or a number satisfying 0 ⁇ d ⁇ 3 indicating the proportion of the alkoxy group having 1 to 6 carbon atoms.
- the sum of c and d is a number satisfying 0.8 ⁇ c + d ⁇ 3, preferably 1 ⁇ c + d ⁇ 2.5, or 1 ⁇ c + d ⁇ 2.3.
- c is a number within the above range
- the resulting curable organopolysiloxane composition has good curability at a relatively low temperature, and the resulting cured product has good mechanical strength. It is.
- cured material improves that d is a number within the said range.
- the total of c and d is within the above range, the resulting curable organopolysiloxane composition has good curability at a relatively low temperature, and the resulting cured product has good mechanical strength. Because.
- the molecular weight of the component (B1) is not particularly limited, but the weight average molecular weight measured by gel permeation chromatography is preferably 500 or more and 50,000 or less.
- the weight average molecular weight of the component (B1) is not less than the lower limit of the above range, the resulting cured product has good mechanical properties, and on the other hand, if it is not more than the upper limit of the above range, the resulting curable organo This is because the curing rate of the polysiloxane composition is improved.
- Examples of the component (B1) include one or a mixture of two or more organopolysiloxanes represented by the following average unit formula.
- Me, Ph, Vi, and Thi each represent a methyl group, a phenyl group, a vinyl group, and a 3-mercaptopropyl group, and y1, y2, y3, and y4 are positive numbers, respectively, , Y1, y2, y3, y4 is 1.
- the thiol compound (B2) is not particularly limited as long as it has at least two mercapto groups in one molecule, and is trimethylolpropane-tris (3-mercaptopropionate), trimethylolpropane-tris.
- the molecular weight of the thiol compound is not particularly limited, but is preferably in the range of 200 to 2,000, in the range of 300 to 1,500, or in the range of 400 to 1,500. This is because if the molecular weight is equal to or higher than the lower limit of the above range, the volatility of the thiol compound itself decreases, and the problem of odor is reduced. On the other hand, if the molecular weight is equal to or lower than the upper limit of the above range, This is because the solubility is improved.
- the content of the component (B) is such that the mercapto group in the component is within the range of 0.3 to 3 mol with respect to 1 mol of the epoxy group in the component (A).
- the amount is preferably in the range of 0.5 to 2 mol, or in the range of 0.8 to 1.5 mol. This is because when the content of the component (B) is not less than the lower limit of the above range, the resulting curable organopolysiloxane composition is sufficiently cured, and on the other hand, it is not greater than the upper limit of the above range. This is because the mechanical strength of the cured product is improved.
- Component (C) is a component for accelerating curing of the composition at low temperature, and is an amine compound having no NH bond and / or a phosphine compound having no PH bond.
- Examples of the amine compound include triethylamine, tri-n-propylamine, tri-n-butylamine, tri-i-butylamine, tri-n-hexylamine, tri-n-octylamine, triphenylamine, and N, N-dimethyl.
- Examples of the phosphine compound include triphenylphosphine, triorthotolylphosphine, triparatolylphosphine, tris (paramethoxyphenyl) phosphine, diphenylcyclohexylphosphine, tricyclohexylphosphine, triethylphosphine, tripropylphosphine, tri-n-butylphosphine, Examples include tri-t-butylphosphine, tri-n-hexylphosphine, and tri-n-octylphosphine.
- tertiary amine compounds are preferable, and these may be used alone or in combination of at least two.
- the bath life of the curable organopolysiloxane composition of the present invention can be adjusted.
- the content of component (C) is in the range of 0.01 to 10% by mass with respect to the total amount of components (A) to (C). This is because the curing reaction of the resulting composition is promoted when the content of the component (C) is at least the lower limit of the above range, and the cured product obtained when the content is below the upper limit of the above range. This is because coloring becomes difficult even by aging.
- the bath life of the present composition can be adjusted by appropriately adjusting the content of the component (C).
- This composition can be used in the absence of a solvent. However, if it is desired to lower the viscosity of this composition or form a cured product on a thin film, it contains (D) an organic solvent as necessary. Also good.
- the organic solvent is not particularly limited as long as it does not inhibit the curing of the composition and can uniformly dissolve the entire composition.
- the organic solvent preferably has a boiling point of 70 ° C.
- the content of the organic solvent is not particularly limited, but is in the range of 0 to 3,000 parts by mass, or 0 to 1,000 parts per 100 parts by mass in total of the components (A) to (C). It is preferably within the range of 000 parts by mass.
- the viscosity at 25 ° C. of the composition is not particularly limited, but is preferably in the range of 10 to 100,000 mPa ⁇ s, or in the range of 10 to 10,000 mPa ⁇ s.
- an organic solvent can be added to this composition, and it can also adjust to the said viscosity range.
- components other than the above as necessary include fumed silica, crystalline silica, fused silica, wet silica, titanium oxide, zinc oxide, iron oxide, and the like.
- Metal oxide fine powders Adhesive agents such as vinyltriethoxysilane, allyltrimethoxysilane, allyltriethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-methacryloxypropyltrimethoxysilane; other nitrides
- conventionally known additives such as inorganic fillers such as sulfides, pigments, heat resistance improvers and the like can be contained.
- This composition can be prepared by uniformly mixing the components (A) to (C) and, if necessary, any other components.
- any composition that can be mixed at room temperature using various stirrers or kneaders and does not easily cure during mixing may be mixed under heating.
- the curing of the composition proceeds even at a relatively low temperature of -5 to 30 ° C.
- hardening can also be accelerated
- the time required for the curing reaction depends on the types of the components (A) to (C), but is generally within 24 hours at a relatively low temperature.
- the cured product of the present invention is characterized by curing the above curable organopolysiloxane composition.
- the shape of the cured product is not particularly limited, and examples thereof include a sheet shape, a film shape, and a tape shape.
- the composition can be applied to a film-like substrate, a tape-like substrate, or a sheet-like substrate and then cured at ⁇ 5 to 30 ° C. to form a cured film on the surface of the substrate.
- the thickness of the cured film is not particularly limited, but is preferably 10 to 500 ⁇ m and 50 to 100 ⁇ m.
- This composition can be applied to a coating of a substrate having poor heat resistance because curing proceeds even at a relatively low temperature.
- the coating method of the present composition include gravure coating, offset coating, offset gravure, roll coating, reverse roll coating, air knife coating, curtain coating, and comma coating.
- Such base materials include paperboard, cardboard paper, clay coated paper, polyolefin laminated paper, especially polyethylene laminated paper, synthetic resin film / sheet / coating film, natural fiber cloth, synthetic fiber cloth, and artificial leather cloth. Examples thereof include metal foil, metal plate and concrete.
- a synthetic resin film / sheet / coating film is preferable.
- the present composition is generally applied on a coating film made of an epoxy resin, an acrylic resin, a urethane resin or the like.
- Weight average molecular weight The weight average molecular weight in terms of standard polystyrene was determined by gel permeation chromatography using an RI detector.
- epoxy equivalent, mercapto equivalent From the structure identified by nuclear magnetic resonance spectrum analysis, the epoxy equivalent (g / mol) or mercapto equivalent (g / mol) of organopolysiloxane was determined.
- This liquid has a weight average molecular weight of 4,100, an epoxy equivalent of 530 g / mol, and an average unit formula by 13 C-nuclear magnetic resonance spectrum analysis: (Me 3 SiO 1/2 ) 0.12 (Me 2 SiO 2/2 ) 0.45 (EpMeSiO 2/2 ) 0.21 (PhSiO 3/2 ) 0.22
- the solid content was filtered to obtain a colorless and transparent liquid having a viscosity of 560 mPa ⁇ s.
- This liquid has a weight average molecular weight of 4,000 and a mercapto equivalent weight of 260 g / mol.
- the average unit formula is: (Me 2 SiO 2/2 ) 0.65 (ThiSiO 3/2 ) 0.35
- (A-1) Epoxy group-containing organopolysiloxane prepared in Synthesis Example 1
- component (B) As the component (B), the following components were used.
- C As the component (C), the following components were used.
- C-1) 2,4,6-tris (dimethylaminomethyl) phenol
- c-2) 2,6-dimethyl-2,6-diazaheptane
- c-3) 1,8-diazabicyclo [5, 4,0] undecene
- c-4) 1,4-diazabicyclo [2,2,2] octane
- c-5) 1- (2-dimethylaminoethyl) -4-methylpiperazine
- c-6) 2,6,10-trimethyl-2,6,10-triazaundecane
- the curable organopolysiloxane composition was evaluated as follows.
- Examples 10 and 11, Comparative Example 4 A solvent-type curable organopolysiloxane composition having the composition shown in Table 3 was prepared using the above components and the following components. In addition, in the curable organopolysiloxane composition, the mercapto group in the component (B) was adjusted to 1 mol with respect to 1 mol of the epoxy group in the component (A).
- (D) As the component (D), the following components were used.
- the curable organopolysiloxane composition was evaluated as follows.
- the curable organopolysiloxane composition was applied by flow coating onto a glass plate, dried and cured at room temperature for 1 day, and further dried and cured at 70 ° C. for 2 hours.
- the adhesion of the cured film on the glass plate was evaluated by a cross cut test (JIS K5400). As a result of the evaluation, “ ⁇ ” indicates that the cured film does not peel off, and “ ⁇ ” indicates that the cured film is peeled off.
- the curable organopolysiloxane composition of the present invention has a good curability even at a relatively low temperature and forms a cured film having excellent adhesion to an object to be coated, It is suitable for coating of a poor object to be coated or a structure coating which is difficult to use a heating means.
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Abstract
Description
(A)平均組成式:
XaR1 bSiO(4-a-b)/2
(式中、Xはグリシドキシアルキル基、エポキシシクロアルキルアルキル基、およびエポキシアルキル基からなる群より選択される少なくとも1種のエポキシ基であり、R1は水素原子、炭素数1~12のアルキル基、炭素数2~12のアルケニル基、炭素数6~20のアリール基、炭素数7~20のアラルキル基、水酸基、または炭素数1~6のアルコキシ基であり、但し、一分子中、少なくとも2個のXを有し、aおよびbは、0<a<1、0<b<3、0.8<a+b<3を満たす数である。)
で表されるエポキシ基含有オルガノポリシロキサン、
(B)一分子中に少なくとも2個のメルカプト基を有する化合物{(A)成分中のエポキシ基1モルに対して、(B)成分中のメルカプト基が0.3~3モルとなる量}、および
(C)N-H結合を有さないアミン化合物および/またはP-H結合を有さないホスフィン化合物{(A)成分~(C)成分の合計量に対して、0.01~10質量%となる量}
から少なくともなることを特徴とする。
XaR1 bSiO(4-a-b)/2
で表される。
(Me3SiO1/2)x1(Me2SiO2/2)x2(MeEpSiO2/2)x3(PhSiO3/2)x4
(Me2ViSiO1/2)x1(Me2SiO2/2)x2(MeEpSiO2/2)x3(PhSiO3/2)x4
(Me3SiO1/2)x1(Me2SiO2/2)x2(MeEpSiO2/2)x3(MeSiO3/2)x4
(Me3SiO1/2)x1(MeEpSiO2/2)x2(PhSiO3/2)x3
(Me3SiO1/2)x1(MeEpSiO2/2)x2(MeSiO3/2)x3(PhSiO3/2)x4
(Me3SiO1/2)x1(Me2SiO2/2)x2(MeEpSiO2/2)x3
(Me3SiO1/2)x1(Me2SiO2/2)x2(MePhSiO2/2)x3(MeEpSiO2/2)x4
(Me3SiO1/2)x1(MePhSiO2/2)x2(MeEpSiO2/2)x3
(Me3SiO1/2)x1(Ph2SiO2/2)x2(MeEpSiO2/2)x3
(Me2SiO2/2)x1(MeEpSiO2/2)x2(PhSiO3/2)x3
(MeEpSiO2/2)x1(PhSiO3/2)x2
(Me2SiO2/2)x1(EpSiO3/2)x2
(Me3SiO1/2)x1(Me2SiO2/2)x2(EpSiO3/2)x3(MeSiO3/2)x4
(Me3SiO1/2)x1(Me2SiO2/2)x2(EpSiO3/2)x3(PhSiO3/2)x4
(Me3SiO1/2)x1(EpSiO3/2)x2(MeSiO3/2)x3
(Me3SiO1/2)x1(EpSiO3/2)x2(PhSiO3/2)x3
(Me2ViSiO1/2)x1(EpSiO3/2)x2(PhSiO3/2)x3
(Me3SiO1/2)x1(EpSiO3/2)x2
(Me2ViSiO1/2)x1(EpSiO3/2)x2
(Me3SiO1/2)x1(Me2SiO2/2)x2(MeEpSiO2/2)x3(SiO4/2)x4
(Me3SiO1/2)x1(MeEpSiO2/2)x2(SiO4/2)x3
(Me3SiO1/2)x1(Me2SiO2/2)x2(EpSiO3/2)x3(SiO4/2)x4
(Me3SiO1/2)x1(Me2SiO2/2)x2(MeEp’SiO2/2)x3(PhSiO3/2)x4
(Me2ViSiO1/2)x1(Me2SiO2/2)x2(MeEp’SiO2/2)x3(PhSiO3/2)x4
(Me3SiO1/2)x1(Me2SiO2/2)x2(MeEp’SiO2/2)x3(MeSiO3/2)x4
(Me3SiO1/2)x1(MeEp’SiO2/2)x2(PhSiO3/2)x3
(Me3SiO1/2)x1(MeEp’SiO2/2)x2(MeSiO3/2)x3(PhSiO3/2)x4
(Me3SiO1/2)x1(Me2SiO2/2)x2(MeEp’SiO2/2)x3
(Me3SiO1/2)x1(Me2SiO2/2)x2(MePhSiO2/2)x3(MeEp’SiO2/2)x4
(Me3SiO1/2)x1(MePhSiO2/2)x2(MeEp’SiO2/2)x3
(Me3SiO1/2)x1(Ph2SiO2/2)x2(MeEp’SiO2/2)x3
(Me2SiO2/2)x1(MeEp’SiO2/2)x2(PhSiO3/2)x3
(MeEp’SiO2/2)x1(PhSiO3/2)x2
(Me2SiO2/2)x1(Ep’SiO3/2)x2
(Me3SiO1/2)x1(Me2SiO2/2)x2(Ep’SiO3/2)x3(MeSiO3/2)x4
(Me3SiO1/2)x1(Me2SiO2/2)x2(Ep’SiO3/2)x3(PhSiO3/2)x4
(Me3SiO1/2)x1(Ep’SiO3/2)x2(MeSiO3/2)x3
(Me3SiO1/2)x1(Ep’SiO3/2)x2(PhSiO3/2)x3
(Me2ViSiO1/2)x1(Ep’SiO3/2)x2(PhSiO3/2)x3
(Me3SiO1/2)x1(Ep’SiO3/2)x2
(Me2ViSiO1/2)x1(Ep’SiO3/2)x2
(Me3SiO1/2)x1(Me2SiO2/2)x2(MeEp’SiO2/2)x3(SiO4/2)x4
(Me3SiO1/2)x1(MeEp’SiO2/2)x2(SiO4/2)x3
(Me3SiO1/2)x1(Me2SiO2/2)x2(Ep’SiO3/2)x3(SiO4/2)x4
YcR2 dSiO(4-c-d)/2
で表されるメルカプト基含有オルガノポリシロキサンおよび/または(B2)一分子中に少なくとも2個のメルカプト基を有するチオール化合物である。
(Me3SiO1/2)y1(Me2SiO2/2)y2(MeThiSiO2/2)y3(PhSiO3/2)y4
(Me2ViSiO1/2)y1(Me2SiO2/2)y2(MeThiSiO2/2)y3(PhSiO3/2)y4
(Me3SiO1/2)y1(Me2SiO2/2)y2(MeThiSiO2/2)y3(MeSiO3/2)y4
(Me3SiO1/2)y1(MeThiSiO2/2)y2(PhSiO3/2)y3
(Me3SiO1/2)y1(MeThiSiO2/2)y2(MeSiO3/2)y3(PhSiO3/2)y4
(Me3SiO1/2)y1(Me2SiO2/2)y2(MeThiSiO2/2)y3
(Me3SiO1/2)y1(Me2SiO2/2)y2(MePhSiO2/2)y3(MeThiSiO2/2)y4
(Me3SiO1/2)y1(MePhSiO2/2)y2(MeThiSiO2/2)y3
(Me3SiO1/2)y1(Ph2SiO2/2)y2(MeThiSiO2/2)y3
(Me2SiO2/2)y1(MeThiSiO2/2)y2(PhSiO3/2)y3
(Me2SiO2/2)y1(ThiSiO3/2)y2
(Me3SiO1/2)y1(Me2SiO2/2)y2(ThiSiO3/2)y3(MeSiO3/2)y4
(Me3SiO1/2)y1(Me2SiO2/2)y2(ThiSiO3/2)y3(PhSiO3/2)y4
(Me3SiO1/2)y1(ThiSiO3/2)y2(MeSiO3/2)y3
(Me3SiO1/2)y1(ThiSiO3/2)y2(PhSiO3/2)y3
(Me2ViSiO1/2)y1(ThiSiO3/2)y2(PhSiO3/2)y3
(Me3SiO1/2)y1(ThiSiO3/2)y2
(Me2ViSiO1/2)y1(ThiSiO3/2)y2
(Me3SiO1/2)y1(Me2SiO2/2)y2(MeThiSiO2/2)y3(SiO4/2)y4
(Me3SiO1/2)y1(MeThiSiO2/2)y2(SiO4/2)y3
(Me3SiO1/2)y1(Me2SiO2/2)y2(ThiSiO3/2)y3(SiO4/2)y4
芝浦システム株式会社製回転粘度計VG-DAを使用して、25℃における粘度を測定した。
RI検出器を用いたゲルパーミエーションクロマトグラフィーにより、標準ポリスチレン換算の重量平均分子量を求めた。
核磁気共鳴スペクトル分析により同定した構造から、オルガノポリシロキサンのエポキシ当量(g/mol)、またはメルカプト当量(g/mol)を求めた。
エポキシ基含有オルガノポリシロキサンの調製
撹拌装置、温度計、還流管、滴下漏斗を取り付けた反応器に、フェニルトリクロロシランの加水分解縮合物(重量平均分子量:1,000、シラノール基含有量:8.0重量%) 341g、3-グリシドキシプロピルメチルジメトキシシラン 528g、25℃における動粘度が5mm2/sの分子鎖両末端トリメチルシロキシ基封鎖ジメチルポリシロキサン 517g、およびトルエン 183gを仕込み、50℃まで加熱攪拌した。その後、水酸化セシウム 2.5gと水 43.2gの混合物を滴下漏斗から徐々に加えた。滴下終了後、加熱し、1時間還流した。生成したメタノールと過剰の水を共沸脱水により除去し、さらにトルエン還流下で8時間反応させた。冷却後、酢酸で中和し、トルエン、低沸分を減圧下で加熱留去した後、中和塩をろ過し、粘度270mPa・sの黄褐色透明な液体を得た。この液体は、重量平均分子量=4,100、エポキシ当量=530g/molであり、13C-核磁気共鳴スペクトル分析により、平均単位式:
(Me3SiO1/2)0.12(Me2SiO2/2)0.45(EpMeSiO2/2)0.21(PhSiO3/2)0.22
で表され、平均組成式:
Ep0.21Me1.47Ph0.22SiO1.05
で表されるエポキシ基含有オルガノポリシロキサンであることが確認された。水酸基又はメトキシ基等のアルコキシ基の含有量は1重量%未満であった。
メルカプト基含有オルガノポリシロキサンの調製
撹拌装置、温度計、還流管、滴下漏斗を取り付けた反応器に、3-メルカプトプロピルトリメトキシシラン 1,374g、ジメチルジメトキシシラン 1,680g、およびトリフルオロメタンスルホン酸 1.18gを仕込み攪拌した後、イオン交換水 882gを室温で滴下した。メタノール還流下で1時間攪拌した後、炭酸カルシウム、シクロヘキサンを加え、生成したメタノールおよび未反応の水を共沸脱水によりを除去した。残った低沸分を減圧下で留去したた後、固形分をろ過し、粘度560mPa・sの無色透明な液体を得た。この液体は、重量平均分子量=4,000、メルカプト当量=260g/molであり、13C-核磁気共鳴スペクトル分析により、平均単位式:
(Me2SiO2/2)0.65(ThiSiO3/2)0.35
で表され、平均組成式:
Thi0.35Me1.30SiO1.18
で表されるメルカプト基含有オルガノポリシロキサンであることが確認された。
下記の成分を用いて、表1、2に示す組成で無溶剤型の硬化性オルガノポリシロキサン組成物を調製した。なお、硬化性オルガノポリシロキサン組成物において、(A)成分中のエポキシ基1モルに対して、(B)成分中のメルカプト基を1モルとなる量に調整した。
(a-1):合成例1で調製したエポキシ基含有オルガノポリシロキサン
(b-1):合成例2で調製したメルカプト基含有オルガノポリシロキサン
(b-2):ペンタエリスリトール-テトラキス(3-メルカプトブチレート)(昭和電工株式会社製のカレンズMTRPE1)
(c-1):2,4,6-トリス(ジメチルアミノメチル)フェノール
(c-2):2,6-ジメチル-2,6-ジアザヘプタン
(c-3):1,8-ジアザビシクロ[5,4,0]ウンデセン
(c-4):1,4-ジアザビシクロ[2,2,2]オクタン
(c-5):1-(2-ジメチルアミノエチル)-4-メチルピペラジン
(c-6):2,6,10-トリメチル-2,6,10-トリアザウンデカン
(e-1):東レ・ダウコーニング株式会社製3055レジン(粘度3,000mPa・s、アミノ当量=500g/mol)
硬化性オルガノポリシロキサン組成物を調製後、その外観を目視により観察した。
硬化性オルガノポリシロキサン組成物をガラス瓶内またはアルミ皿上で25℃に保持し、流動性を失うか、または組成物が指に付かなくなるまでの時間(ゲル化時間)を求め、次のように硬化性を評価した。
☆☆☆:25℃でのゲル化時間が6時間以内
☆☆:25℃でのゲル化時間が6時間を超え、12時間以内
☆:25℃でのゲル化時間が12時間を超え、24時間以内
△:25℃でのゲル化時間が24時間を超え、48時間以内
×:25℃、48時間でも未硬化
25℃で24時間以内に硬化した組成物について、-2℃における硬化性を次のようにして評価した。
☆☆☆:-2℃でのゲル化時間が6時間以内
☆☆:-2℃でのゲル化時間が6時間を超え、12時間以内
☆:-2℃でのゲル化時間が12時間を超え、24時間以内
△:-2℃でのゲル化時間が24時間を超え、48時間以内
×:-2℃、48時間でも未硬化
上記の成分および下記の成分を用いて、表3に示す組成で溶剤型の硬化性オルガノポリシロキサン組成物を調製した。なお、硬化性オルガノポリシロキサン組成物において、(A)成分中のエポキシ基1モルに対する、(B)成分中のメルカプト基は1モルとなる量に調整した。
(d-1):酢酸エチル(和光純薬工業株式会社製)
硬化性オルガノポリシロキサン組成物の硬化性を上記と同様に評価した。
硬化性オルガノポリシロキサン組成物をガラス板に流し塗りで塗布し、室温で1日乾燥・硬化させた後、さらに70℃で2時間乾燥・硬化した。ガラス板上の硬化皮膜の密着性を碁盤目試験(JIS K5400)により評価した。評価の結果、硬化皮膜の剥がれがない場合を“○”、硬化皮膜の剥がれがある場合を“×”で示した。
Claims (7)
- (A)平均組成式:
XaR1 bSiO(4-a-b)/2
(式中、Xはグリシドキシアルキル基、エポキシシクロアルキルアルキル基、およびエポキシアルキル基からなる群より選択される少なくとも1種のエポキシ基であり、R1は水素原子、炭素数1~12のアルキル基、炭素数2~12のアルケニル基、炭素数6~20のアリール基、炭素数7~20のアラルキル基、水酸基、または炭素数1~6のアルコキシ基であり、但し、一分子中、少なくとも2個のXを有し、aおよびbは、0<a<1、0<b<3、0.8<a+b<3を満たす数である。)
で表されるエポキシ基含有オルガノポリシロキサン、
(B)一分子中に少なくとも2個のメルカプト基を有する化合物{(A)成分中のエポキシ基1モルに対して、(B)成分中のメルカプト基が0.3~3モルとなる量}、および
(C)N-H結合を有さないアミン化合物および/またはP-H結合を有さないホスフィン化合物{(A)成分~(C)成分の合計量に対して、0.01~10質量%となる量}
から少なくともなる硬化性オルガノポリシロキサン組成物。 - (B)成分が、(B1)平均組成式:
YcR2 dSiO(4-c-d)/2
(式中、Yはメルカプトアルキル基、およびメルカプトアリール基からなる群より選択される少なくとも1種のメルカプト基であり、R2は水素原子、炭素数1~12のアルキル基、炭素数2~12のアルケニル基、炭素数6~20のアリール基、炭素数7~20のアラルキル基、水酸基、または炭素数1~6のアルコキシ基であり、但し、一分子中、少なくとも2個のYを有し、cおよびdは、0<c<1、0<d<3、0.8<c+d<3を満たす数である。)
で表されるメルカプト基含有オルガノポリシロキサンおよび/または(B2)一分子中に少なくとも2個のメルカプト基を有するチオール化合物である、請求項1に記載の硬化性オルガノポリシロキサン組成物。 - (C)成分中のアミン化合物が三級アミン化合物である、請求項1または2に記載の硬化性オルガノポリシロキサン組成物。
- さらに、(D)有機溶剤を、(A)成分~(C)の合計100質量部に対して0~3,000質量部を含有する、請求項1乃至3のいずれか1項に記載の硬化性オルガノポリシロキサン組成物。
- コーティング組成物である、請求項1乃至4のいずれか1項に記載の硬化性オルガノポリシロキサン組成物。
- 請求項1乃至4のいずれか1項に記載の硬化性オルガノポリシロキサン組成物を硬化させてなる硬化物。
- 被塗物に請求項5に記載の硬化性オルガノポリシロキサン組成物を塗布し、-5~30℃で硬化させることを特徴とする、硬化皮膜の形成方法。
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EP15869514.8A EP3235846B1 (en) | 2014-12-18 | 2015-12-04 | Curable organopolysiloxane composition, cured product thereof, and method for forming cured film |
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CN201580069568.1A CN107108858B (zh) | 2014-12-18 | 2015-12-04 | 可固化有机聚硅氧烷组合物、其固化产物以及用于形成固化膜的方法 |
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JP2019089972A (ja) * | 2017-11-16 | 2019-06-13 | 三菱ケミカル株式会社 | 硬化性組成物、接着剤、コーティング層を有する物品、繊維強化複合材料、ポッティング剤および硬化性組成物キット |
JPWO2021167051A1 (ja) * | 2020-02-21 | 2021-08-26 | ||
JP2023127815A (ja) * | 2022-03-02 | 2023-09-14 | 味の素株式会社 | 硬化性組成物 |
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KR20200070356A (ko) * | 2017-11-07 | 2020-06-17 | 다우 도레이 캄파니 리미티드 | 오가노폴리실록산 조성물 |
KR102444443B1 (ko) * | 2021-08-25 | 2022-09-20 | 에스케이이노베이션 주식회사 | 플렉서블 윈도우 커버 필름용 하드코팅 조성물, 이로부터 얻어지는 하드코팅층 및 이를 포함하는 플렉서블 윈도우 커버 필름. |
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US10611877B2 (en) | 2020-04-07 |
KR20170095993A (ko) | 2017-08-23 |
KR102465006B1 (ko) | 2022-11-10 |
EP3235846A1 (en) | 2017-10-25 |
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