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US4675362A
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Multi-component copolymer rubber, a process for producing the same and a rubber composition containing the multi-component copolymer rubber
Assignee: JSR Corp
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Filing: 1986-04-03
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Granted: 1987-06-23
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Expires: 2006-04-03
Abstract
Abstract A multi-component copolymer rubber consisting essentially of (A) 20 to 69.5% by weight of a cyano-substituted alkyl (meth)acrylate, (B) 30 to 79.5% by weight of an alkyl acrylate, (C) 0.5 to 10% by weight of a crosslinkable monomer and (D) 0 to 10% by weight of other ethylenically unsaturated monomer copolymerizable with (A), (B) and (C), excels in heat resistance, ozone resistance, sour gasoline resistance and sour gasohol resistance. There properties of said multi-component copolymer rubber can further be improved by incorporating into the copolymer rubber a crosslinking agent, a metal salt, a vinylidene fluoride polymer, a vinyl chloride resin or other multi-component copolymer rubber.
Inventors
- 👤 Toshio Miyabayashi
- 👤 Nobuyuki Sakabe
- 👤 Yoshiyuki Udagawa
- 👤 Hiroji Enyo
- 👤 Yasuhiko Takemura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:11
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/34; C08F220/12; F; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
96 words
A multi-component copolymer rubber composition consisting essentially of a multi-component copolymer rubber, consisting essentially of: (A) 10 to 69.5% by weight of a cyano-substituted alkyl (meth)acrylate of the formula: ##STR9## wherein R 1 is hydrogen or methyl and --R 2 --CN is a cyanoalkyl group of 2 to 12 carbon atoms, (B) 30 to 89.5% by weight of an alkyl acrylate, (C) 0.5 to 10% by weight of a cross-linkable monomer, and (D) 0 to 10% by weight of another ethylenically unsaturated monomer copolymerizable with the components (A), (B) and (C), and a vinyl chloride resin.
Claim 2
Dependent Claim
96 words
A multi-component copolymer rubber composition consisting essentially of a multi-component copolymer rubber, consisting essentially of: (A) 10 to 69.5% by weight of a cyano-substituted alkyl (meth)acrylate of the formula: ##STR9## wherein R 1 is hydrogen or methyl and --R 2 --CN is a cyanoalkyl group of 2 to 12 carbon atoms, (B) 30 to 89.5% by weight of an alkyl acrylate, (C) 0.5 to 10% by weight of a cross-linkable monomer, and (D) 0 to 10% by weight of another ethylenically unsaturated monomer copolymerizable with the components (A), (B) and (C), and a vinyl chloride resin.
Claim 3
Dependent Claim
65 words
The multi-component copolymer rubber composition according to claim 1, wherein the multi-component copolymer rubber consists essentially of (A) 20 to 69.5% by weight of said cyano-substituted alkyl (meth)acrylate, (B) 30 to 79.5% by weight of an alkyl acrylate, (C) 0.5 to 10% by weight of a crosslinkable monomer, (D) 0 to 10% by weight of another ethylenically unsaturated monomer copolymerizable with (A), (B) and (C).
Claim 4
Dependent Claim
94 words
A multi-component copolymer rubber composition consisting essentially of a multi-component copolymer rubber, consisting essentially of: (A) 10 to 69.5% by weight of a cyano-substituted alkyl (meth)acrylate of the formula: ##STR10## wherein R 1 is hydrogen or methyl and --R 2 --CN is a cyanoalkyl group of 2 to 12 carbon atoms, (B) 30 to 89.5% by weight of an alkyl acrylate, (C) 0.5 to 10% by weight of a cross-linkable monomer, and (D) 0 to 10% by weight of another ethylenically unsaturated monomer copolymerizable with (A), (B), and (C); and a vinylidene fluoride polymer.
Claim 5
Dependent Claim
94 words
A multi-component copolymer rubber composition consisting essentially of a multi-component copolymer rubber, consisting essentially of: (A) 10 to 69.5% by weight of a cyano-substituted alkyl (meth)acrylate of the formula: ##STR10## wherein R 1 is hydrogen or methyl and --R 2 --CN is a cyanoalkyl group of 2 to 12 carbon atoms, (B) 30 to 89.5% by weight of an alkyl acrylate, (C) 0.5 to 10% by weight of a cross-linkable monomer, and (D) 0 to 10% by weight of another ethylenically unsaturated monomer copolymerizable with (A), (B), and (C); and a vinylidene fluoride polymer.
Claim 6
Dependent Claim
66 words
The multi-component copolymer rubber composition according to claim 3, wherein the multi-component copolymer rubber consists essentially of (A) 20 to 69.5% by weight of said cyano-substituted alkyl (meth)acrylate, (B) 30 to 79.5% by weight of an alkyl acrylate, (C) 0.5 to 10% by weight of a crosslinkable monomer, and (D) 0 to 10% by weight of another ethylenically unsaturated monomer copolymerzable with (A), (B) and (C).
Claim 7
Dependent Claim
93 words
A multi-component copolymer rubber composition consisting essentially of a multi-component copolymer rubber, consisting essentially of: (A) 10 to 69.5% by weight of a cyano-substituted alkyl (meth)acrylate of the formula: ##STR11## wherein R 1 is hydrogen or methyl and --R 2 --CN is a cyanoalkyl group of 2 to 12 carbon atoms, (B) 30 to 89.5% by weight of an alkylacrylate, (C) 0.5 to 10% by weight of a crosslinkable monomer, and (D) 0 to 10% by weight of an another ethylenically unsaturated monomer copolymerizable with (A), (B) and (C), and a nitrile rubber.
Claim 8
Dependent Claim
93 words
A multi-component copolymer rubber composition consisting essentially of a multi-component copolymer rubber, consisting essentially of: (A) 10 to 69.5% by weight of a cyano-substituted alkyl (meth)acrylate of the formula: ##STR11## wherein R 1 is hydrogen or methyl and --R 2 --CN is a cyanoalkyl group of 2 to 12 carbon atoms, (B) 30 to 89.5% by weight of an alkylacrylate, (C) 0.5 to 10% by weight of a crosslinkable monomer, and (D) 0 to 10% by weight of an another ethylenically unsaturated monomer copolymerizable with (A), (B) and (C), and a nitrile rubber.
Claim 9
Dependent Claim
66 words
The multi-component copolymer rubber composition according to claim 5, wherein the multi-component copolymer rubber consists essentially of (A) 20 to 69.5% by weight of said cyano-substituted alkyl (meth)acrylate, (B) 30 to 79.5% by weight of an alkyl acrylate, (C) 0.5 to 10% by weight of a crosslinkable monomer, and (D) 0 to 10% by weight of another ethylenically unsaturated monomer copolymerizable with (A), (B) and (C).
Claim 10
Dependent Claim
72 words
The multi-component copolymer rubber composition according to claim 6, wherein the nitrile rubber is a copolymer or a hydrogenated product thereof, the copolymer consisting essentially of 20 to 90% by weight of a conjugated diene, 10 to 55% by weight of an α,β-unsaturated nitrile, 0 to 70% by weight of an α,β-unsaturated carboxylic acid ester and 0 to 20% by weight of a monomer containing a carboxyl, epoxy, hydroxyl or amino group.
Claim 11
Dependent Claim
177 words
A multi-component copolymer rubber composition, consisting essentially of; (i) a multi-component copolymer rubber, consisting essentially of: (A) 10 to 69.5% by weight of a cyano-substituted alkyl (meth)acrylate of the formula: ##STR12## wherein R 1 is hydrogen or methyl and --R 2 --CN is a cyanoalkyl group of 2 to 12 carbon atoms, (B) 30 to 89.5% by weight of an alkyl acrylate, (C) 0.5 to 10% by weight of a cross-linkable monomer, and (D) 0 to 10% by weight of another ethylenically unsaturated monomer copolymerizable with (A), (B), and (C), and (ii) an acrylic rubber which is a multi-component copolymer rubber consisting of: (A') 99.5 to 39.5% by weight of an alkylacrylate, (B') 0 to 60% by weight of an alkoxyalkyl acrylate, (C') 0.5 to 10% by weight of at least one compound selected from the group consisting of diene compounds, (meth)acrylic acid esters containing a dihydrodicyclopentadienyl group, epoxy group-containing ethylenically unsaturated compounds and active halogen-containing ethylenically unsaturated compounds, and (D') 0 to 10% by weight of another ethylenically unsaturated compound copolymerizable with (A'), (B') and (C').
Claim 12
Dependent Claim
177 words
A multi-component copolymer rubber composition, consisting essentially of; (i) a multi-component copolymer rubber, consisting essentially of: (A) 10 to 69.5% by weight of a cyano-substituted alkyl (meth)acrylate of the formula: ##STR12## wherein R 1 is hydrogen or methyl and --R 2 --CN is a cyanoalkyl group of 2 to 12 carbon atoms, (B) 30 to 89.5% by weight of an alkyl acrylate, (C) 0.5 to 10% by weight of a cross-linkable monomer, and (D) 0 to 10% by weight of another ethylenically unsaturated monomer copolymerizable with (A), (B), and (C), and (ii) an acrylic rubber which is a multi-component copolymer rubber consisting of: (A') 99.5 to 39.5% by weight of an alkylacrylate, (B') 0 to 60% by weight of an alkoxyalkyl acrylate, (C') 0.5 to 10% by weight of at least one compound selected from the group consisting of diene compounds, (meth)acrylic acid esters containing a dihydrodicyclopentadienyl group, epoxy group-containing ethylenically unsaturated compounds and active halogen-containing ethylenically unsaturated compounds, and (D') 0 to 10% by weight of another ethylenically unsaturated compound copolymerizable with (A'), (B') and (C').
Claim 13
Dependent Claim
66 words
The multi-component copolymer rubber composition according to claim 8, wherein the multi-component copolymer rubber consists essentially of (A) 20 to 69.5% by weight of said cyano-substituted alkyl (meth)acrylate, (B) 30 to 79.5% by weight of an alkyl acrylate, (C) 0.5 to 10% by weight of a crosslinkable monomer, and (D) 0 to 10% by weight of another ethylenically unsaturated monomer copolymerizable with (A), (B) and (C).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |