EP0303244A2
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EP
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Process for preparation of rubber laminates
Assignee: Zeon Corp
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Filing: 1988-08-10
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Granted: —
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Expires: 2008-08-10
Abstract
Abstract Disclosed is a process for the preparation of rubber laminates, according to which a rubber laminate having a high bonding strength can be obtained by contacting an uncured composition A comprising a fluororubber and a metal oxide with an uncured composition B comprising an epichlorohydrin rubber and a phosphonium salt represented by the following general formula: wherein R₁, R₂, R₃ and R₄ each stand for a hydrocarbon residue having 1 to 20 carbon atoms, which may be substituted, with the proviso that up to three of R₁, R₂, R₃ and R₄ may be a primary, secondary or tertiary amino group or a fluoroalkyl group, and R₅ stands for a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and curing the uncured compositions.
Inventors
- 👤 Takashi C/O Nippon Zeon K.K. Nakagawa
- 👤 Osamu C/O Nippon Zeon K.K. Sugimoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 01:51
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/02; C08L71/03; C08J; C08J5/00; C08J5/12; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3472; C08K5/3475; C08K5/49; C08K5/50; C08L27/00; C08L27/02; C08L27/12; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1386; Y10T428/139; Y10T428/1393; Y10T428/31504; Y10T428/31511
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
111 words
A process for the preparation of rubber laminates, which comprises contacting an uncured composition A comprising a fluororubber and a metal oxide with an uncured composition B comprising an epichlorohydrin rubber and a phosphonium salt represented by the following general formula: wherein R₁, R₂, R₃ and R₄ each stand for a hydrocarbon residue having 1 to 20 carbon atoms, which may be substituted, with the proviso that up to three of R₁, R₂, R₃ and R₄ may be a primary, secondary or tertiary amino group or a fluoroalkyl group, and R₅ stands for a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and curing the uncured compositions.
Claim 2
Dependent Claim
111 words
A process for the preparation of rubber laminates, which comprises contacting an uncured composition A comprising a fluororubber and a metal oxide with an uncured composition B comprising an epichlorohydrin rubber and a phosphonium salt represented by the following general formula: wherein R₁, R₂, R₃ and R₄ each stand for a hydrocarbon residue having 1 to 20 carbon atoms, which may be substituted, with the proviso that up to three of R₁, R₂, R₃ and R₄ may be a primary, secondary or tertiary amino group or a fluoroalkyl group, and R₅ stands for a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and curing the uncured compositions.
Claim 3
Dependent Claim
49 words
A process for the preparation of rubber laminates according to claim 1, wherein the fluororubber is a rubber selected from the group consisting of homopolymer rubbers of fluorine-containing unsaturated monomers, copolymer rubbers of fluorine-containing unsaturated monomers and copolymer rubbers of fluorine-containing unsaturated monomers with other unsaturated monomers copolymerizable therewith.
Claim 4
Dependent Claim
33 words
A process for the preparation of rubber laminates according to claim 1, wherein the fluororubber is a rubber selected from the group consisting of vinylidene fluoride/hexafluoropropene binary copolymer rubbers and vinylidene fluoride/hexafluoropropene/tetrafluoroethylene terpolymers.
Claim 5
Dependent Claim
32 words
A process for the preparation of rubber laminates according to claim 1, wherein the metal oxide is a compound selected from the group consisting of CaO, MgO, PbO, Pb₃O₄, BaO and Aℓ₂0₃.
Claim 6
Dependent Claim
18 words
A process for the preparation of rubber laminates according to claim 1, wherein the metal oxide is MgO.
Claim 7
Dependent Claim
41 words
A process for the preparation of rubber laminates according to claim 1, wherein the metal oxide is incorporated in the uncured composition A in an amount of 1 to 30 parts by weight per 100 parts by weight of the fluororubber.
Claim 8
Dependent Claim
36 words
A process for the preparation of rubber laminates according to claim 1, wherein the epichlorohydrin rubber is a rubber selected from the group consisting of epichlorohydrin homopolymer rubbers and copolymer rubbers of epichlorohydrin with other epoxides.
Claim 9
Dependent Claim
50 words
A process for the preparation of rubber laminates according to claim 7, wherein the copolymer rubber of epichlorohydrin with other epoxide is a copolymer rubber selected from the group consisting of an epichlorohydrin/ethylene oxide copolymer rubber, an epichlorohydrin/allyl glycidyl ether copolymer rubber and an epichlorohydrin/ethylene oxide/allyl glycidyl ether terpolymer rubber.
Claim 10
Dependent Claim
53 words
A process for the preparation of rubber laminates according to claim 7, wherein the copolymer rubber of epichlorohydrin with other epoxide is a copolymer rubber selected from the group consisting of an epichlorohydrin/propylene oxide copolymer rubber, an epichlorohydrin/propylene oxide/allyl glycidyl ether terpolymer rubber and an epichlorohydrin/propylene oxide/ethylene oxide/allyl glycidyl ether quaternary copolymer rubber.
Claim 11
Dependent Claim
37 words
A process for the preparation of rubber laminates according to claim 1, wherein the hydrocarbon residue is a group selected from the group consisting of alkyl groups, cycloalkyl groups, aralkyl groups, aryl groups and substituted aryl groups.
Claim 12
Dependent Claim
41 words
A process for the preparation of rubber laminates according to claim 1, wherein the secondary and tertiary amino groups in the primary, secondary and tertiary amino groups are selected from the group consisting of methylamino, ethylamino, anilino, dimethylamino and diethylamino groups.
Claim 13
Dependent Claim
28 words
A process for the preparation of rubber laminates according to claim 1, wherein the fluoroalkyl group is selected from the group consisting of trifluoromethyl, tetrafluoropropyl and octafluoropentyl groups.
Claim 14
Dependent Claim
31 words
A process for the preparation of rubber laminates according to claim 1, wherein R₅ is an alkyl group selected from the group consisting of methyl, ethyl, butyl, ethylhexyl and dodecyl groups.
Claim 15
Dependent Claim
42 words
A process for the preparation of rubber laminates according to claim 1, wherein the phosphonium salt is incorporated in the uncured composition B in an amount of 0.5 to 10 parts by weight per 100 parts by weight of the epichlorohydrin rubber.
Claim 16
Dependent Claim
24 words
A process for the preparation of rubber laminates according to claim 1, wherein the metal oxide is further incorporated in the uncured composition B.
Claim 17
Dependent Claim
18 words
A process for the preparation of rubber laminates according to claim 15, wherein the metal oxide is MgO.
References Cited (Backward Citations)
No citation records indexed.
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