Patent EP0270020A2 successfully refreshed from Google Patents.
EP0270020A2
Expired / Lapsed
EP
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Resin cure
Assignee: Polysar Ltd
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Filing: 1987-11-27
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Granted: —
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Expires: 2007-11-27
Abstract
Abstract The invention relates to a vulcanizable composition containing a partially hydrogenated nitrile polymer and a resin vulcanization system.
Inventors
- 👤 John Jarwick Ridland
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 08:56
CPC Classifications
C; C08; C08L; C08L15/00; C08L15/005; C08K; C08K3/00; C08K3/16; C08L11/00; C08L23/00; C08L23/26; C08L23/28; C08L23/283; C08L61/00; C08L61/04; C08L61/06; Y; Y10; Y10S; Y10S525/00; Y10S525/94
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
69 words
A vulcanizable polymer composition comprising (i) a copolymer of a C 4-6 conjugated diene and a C 3-5 α,β-unsaturated nitrile, the carbon-carbon double bond unsaturation of said copolymer having been selectively hydrogenated such that the remaining carbon-carbon double bond unsaturation is from less than 5 to 0.05 mole percent and (ii) a vulcanization system comprising a reactive phenol-formaldehyde resin, a Lewis acid activator, and (iii) other conventional compounding ingredients.
Claim 2
Dependent Claim
69 words
A vulcanizable polymer composition comprising (i) a copolymer of a C 4-6 conjugated diene and a C 3-5 α,β-unsaturated nitrile, the carbon-carbon double bond unsaturation of said copolymer having been selectively hydrogenated such that the remaining carbon-carbon double bond unsaturation is from less than 5 to 0.05 mole percent and (ii) a vulcanization system comprising a reactive phenol-formaldehyde resin, a Lewis acid activator, and (iii) other conventional compounding ingredients.
Claim 3
Dependent Claim
17 words
The composition according to Claim 1 wherein said conjugated diene is butadiene and said nitrile is acrylonitrile.
Claim 4
Dependent Claim
14 words
The composition according to Claim 1 wherein said Lewis acid activator is stannous chloride.
Claim 5
Dependent Claim
20 words
The composition according to Claim 1 wherein said Lewis acid activator is selected from polychlorobutadiene polymer and brominated isoprene-isobutylene elastomer.
Claim 6
Dependent Claim
73 words
A process for preparing a vulcanizable polymer composition comprising admixing (i) a copolymer of a C 4-6 conjugated diene and a C 3-5 α,β-unsaturated nitrile, the carbon-carbon double bond unsaturation of said copolymer having been selectively hydrogenated such that the remaining carbon-carbon double bond unsaturation is from less than 5 to 0.05 mole percent, (ii) a vulcanization system comprising a reactive phenol-formaldehyde resin, a Lewis acid activator, and (iii) other conventional compounding ingredients.
Claim 7
Dependent Claim
73 words
A process for preparing a vulcanizable polymer composition comprising admixing (i) a copolymer of a C 4-6 conjugated diene and a C 3-5 α,β-unsaturated nitrile, the carbon-carbon double bond unsaturation of said copolymer having been selectively hydrogenated such that the remaining carbon-carbon double bond unsaturation is from less than 5 to 0.05 mole percent, (ii) a vulcanization system comprising a reactive phenol-formaldehyde resin, a Lewis acid activator, and (iii) other conventional compounding ingredients.
Claim 8
Dependent Claim
17 words
The process according to Claim 5 wherein said conjugated diene is butadiene and said nitrile is acrylonitrile.
Claim 9
Dependent Claim
14 words
The process according to Claim 5 wherein said Lewis acid activator is stannous chloride.
Claim 10
Dependent Claim
20 words
The process according to Claim 5 wherein said Lewis acid activator is selected from polychlorobutadiene polymer and brominated isoprene-isobutylene elastomer.
Claim 11
Dependent Claim
69 words
A vulcanizate prepared by vulcanizing an admixture of (i) a C 4-6 conjugated diene and a C 3-5 α,β-unsaturated nitrile, the carbon-carbon double bond unsaturation of said copolymer having been selectively hydrogenated such that the remaining carbon-carbon double bond unsaturation is from less than 5 to 0.05 mole percent, (ii) a vulcanization system comprising a reactive phenol-formaldehyde resin and a Lewis acid activator and (iii) other conventional compounding ingredients.
Claim 12
Dependent Claim
69 words
A vulcanizate prepared by vulcanizing an admixture of (i) a C 4-6 conjugated diene and a C 3-5 α,β-unsaturated nitrile, the carbon-carbon double bond unsaturation of said copolymer having been selectively hydrogenated such that the remaining carbon-carbon double bond unsaturation is from less than 5 to 0.05 mole percent, (ii) a vulcanization system comprising a reactive phenol-formaldehyde resin and a Lewis acid activator and (iii) other conventional compounding ingredients.
References Cited (Backward Citations)
No citation records indexed.
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