EP0160399A2
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EP
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A mult-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: 1985-03-28
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Granted: —
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Expires: 2005-03-28
Abstract
Abstract A multi-component copolymer rubber consisting essentially of (A) 20 to 69.5% by weight of a cyanosubstituted 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. These 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
- 👤 Gosei Gomu Shataku 3-303 Nihon
- 👤 Nobuyuki Sakabe
- 👤 Yoshiyuki Udagawa
- 👤 Hiroji Enyo
- 👤 Yasuhiko Takemura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 13:26
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: 27
Claim 1
Independent Claim
56 words
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).
Claim 2
Dependent Claim
56 words
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).
Claim 3
Dependent Claim
22 words
A multi-component copolymer rubber according to Claim 1, wherein the cyano-substituted alkyl acrylate (A) is 2-cyanoethyl acrylate, 3-cyanopropyl acrylate or 4-cyanobutyl acrylate.
Claim 4
Dependent Claim
29 words
A multi-component copolymer rubber according to Claim 1, wherein the alkyl acrylate (B) is ethyl acrylate, propyl acrylate, n-butyl acrylate, n-pentyl acrylate, n-hexyl acrylate, 2-ethylhexyl acrylate or n-octyl acrylate.
Claim 5
Dependent Claim
62 words
A multi-component copolymer rubber according to Claim 1, wherein the crosslinkable monomer (C) is at least one compound selected from the group consisting of (C-I) a diene compound, (C-II) a (meth)acrylic acid ester containing a dihydrodicyclopentadienyl group, (C-III) an epoxy group-containing, ethylenically unsaturated compound, (C-IV) an active halogen-containing, ethylenically unsaturated compound, (C-V) an active hydrogen-containing monomer, and (C-VI) a carboxyl group-containing monomer.
Claim 6
Dependent Claim
52 words
A multi-component copolymer rubber according to Claim 1, wherein the crosslinkable monomer (C) is at least one compound selected from the group consisting of (C-I) a diene compound, (C-II) a (meth)acrylic acid ester containing a dihydrodicyclopentadienyl group, (C-III) an epoxy group-containing, ethylenically unsaturated compound, and (C-IV) an active halogen-containing, ethylenically unsaturated compound.
Claim 7
Dependent Claim
21 words
A multi-component copolymer rubber according to Claim 1, wherein the crosslinkable monomer (C) is an epoxy group-containing, ethylenically unsaturated compound (C-III).
Claim 8
Dependent Claim
25 words
A multi-component copolymer rubber according to Claim 6, wherein the epoxy group-containing, ethylenically unsaturated compound (C-III) is allyl glycidyl ether, glycidyl methacrylate or glycidyl acrylate.
Claim 9
Dependent Claim
42 words
A multi-component copolymer rubber according to Claim 1, wherein the proportions of the components (A), (B), (C) and (D) are 25 to 60% by weight, 35 to. 75% by weight, 0.5 to 5% by weight and 0 to 7% by weight, respectively.
Claim 10
Dependent Claim
78 words
A process for producting a multi-component copolymer rubber, which comprises subjecting a mixture of (A) 15 to 70% by weight of a cyano-substituted alkyl (meth)acrylate, (B) 30 to 84.5% by weight of an alkyl acrylate, (C) 0.5 to 15% by weight of a crosslinkable monomer and (D) 0 to 15% by weight of an ethylenically unsaturated monomer copolymerizable with (A), (B) and (C), to radical polymerization at 0° to 80°C by the use of a radical polymerization catalyst.
Claim 11
Dependent Claim
78 words
A process for producting a multi-component copolymer rubber, which comprises subjecting a mixture of (A) 15 to 70% by weight of a cyano-substituted alkyl (meth)acrylate, (B) 30 to 84.5% by weight of an alkyl acrylate, (C) 0.5 to 15% by weight of a crosslinkable monomer and (D) 0 to 15% by weight of an ethylenically unsaturated monomer copolymerizable with (A), (B) and (C), to radical polymerization at 0° to 80°C by the use of a radical polymerization catalyst.
Claim 12
Dependent Claim
19 words
A vulcanized rubber composition consisting essentially of a multi-component copolymer rubber according to Claim 1 and a crosslinking agent.
Claim 13
Dependent Claim
71 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, (B) 30 to 89.5% 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 the components (A), (B) and (C), and a vinyl chloride resin.
Claim 14
Dependent Claim
71 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, (B) 30 to 89.5% 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 the components (A), (B) and (C), and a vinyl chloride resin.
Claim 15
Dependent Claim
65 words
A multi-component copolymer rubber composition according to Claim 11, wherein the multi-component copolymer rubber consists 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, (D) 0 to 10% by weight of other ethylenically unsaturated monomer copolymerizable with (A), (B) and (C).
Claim 16
Dependent Claim
69 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, (B) 30 to 89.5% 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), and a vinylidene fluoride polymer.
Claim 17
Dependent Claim
69 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, (B) 30 to 89.5% 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), and a vinylidene fluoride polymer.
Claim 18
Dependent Claim
66 words
A multi-component copolymer rubber composition according to Claim 13, wherein the multi-component copolymer rubber consists 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 copolymerzable with (A), (B) and (C).
Claim 19
Dependent Claim
68 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, (B) 30 to 89.5% 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), and an acrylic rubber.
Claim 20
Dependent Claim
68 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, (B) 30 to 89.5% 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), and an acrylic rubber.
Claim 21
Dependent Claim
68 words
A multi-component copolymer rubber composition according to Claim 15, wherein the multi-component copolymer rubber consists 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 un- . saturated monomer copolymerizable with (A), (B) and (C).
Claim 22
Dependent Claim
67 words
A multi-component copolymer rubber composition according to Claim 16, wherein the acrylic rubber is a copolymer consisting essentially of 39.5% by weight of an alkyl acrylate, 0 to 60% by weight of an alkoxyalkyl acrylate, 0.5 to 10% by weight of a crosslinkable monomer and 0 to 10% by weight of other ethylenically unsaturated monomer copolymerizable with the alkyl acrylate, the alkoxyalkyl acrylate and the crosslinkable monomer.
Claim 23
Dependent Claim
68 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, (B) 30 to 89.5% 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), and a nitrile rubber.
Claim 24
Dependent Claim
68 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, (B) 30 to 89.5% 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), and a nitrile rubber.
Claim 25
Dependent Claim
66 words
A multi-component copolymer rubber composition according to Claim 18, wherein the multi-component copolymer rubber consists 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).
Claim 26
Dependent Claim
72 words
A multi-component copolymer rubber composition according to Claim 19, 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,8-unsaturated carboxylic acid ester and 0 to 20% by weight of a monomer containing a carboxyl, epoxy, hydroxyl or amino group.
Claim 27
Dependent Claim
21 words
A fuel hose having a layer of a multi-component copolymer rubber according to Claim 1 on the side contacting with fuel.
References Cited (Backward Citations)
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