Patent EP0105445A1 successfully refreshed from Google Patents.
EP0105445A1
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EP
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Perfluoroelastomer blends
Assignee: EIDP Inc
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Filing: 1983-09-27
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Granted: —
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Expires: 2003-09-27
Abstract
Abstract Co-vulcanizable fluoroelastomer blends of tetrafluoroethylene/perfluoro-(methylvinyl-ether)/cure-site monomer terpolymer and hexafluoropropylene oxide/cure-site monomer dipolymer.
Inventors
- 👤 Carl Albert Aufdermarsh, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 23:40
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/18
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
65 words
A co-vulcanizable fluoroelastomer blend consisting essentially of (a) 50-95 weight percent of at least one tetrafluoroethylene/perfluoro-(methylvinyl ether)/cure-site monomer terpolymer and (b) 5-50 weight percent of at least one hexafluoropropylene oxide/cure-site monomer dipolymer, wherein the reactive functional group of the cure-site monomer in the terpolymer is the same as in the dipolymer and is selected from the group consisting of -C 6 F 5 and -CN.
Claim 2
Dependent Claim
65 words
A co-vulcanizable fluoroelastomer blend consisting essentially of (a) 50-95 weight percent of at least one tetrafluoroethylene/perfluoro-(methylvinyl ether)/cure-site monomer terpolymer and (b) 5-50 weight percent of at least one hexafluoropropylene oxide/cure-site monomer dipolymer, wherein the reactive functional group of the cure-site monomer in the terpolymer is the same as in the dipolymer and is selected from the group consisting of -C 6 F 5 and -CN.
Claim 3
Dependent Claim
22 words
The blend of Claim 1 wherein the terpolymer comprises 65-80 weight percent of the blend and the dipolymer comprises 20-35 weight percent.
Claim 4
Dependent Claim
12 words
The blend of Claim 1 wherein the terpolymer cure-site monomer is perfluoro-(8-cyano-5-methyl-3,6-dioxa-l-octene).
Claim 5
Dependent Claim
18 words
The blend of Claim 1 wherein the number average molecular weight of the dipolymer is greater than 15,000.
Claim 6
Dependent Claim
14 words
The blend of Claim 1 wherein the terpolymer cure-site monomer is perfluoro-(2-phenoxypropyl vinyl ether).
Claim 7
Dependent Claim
13 words
The blend of Claim 1 wherein the dipolymer cure-site monomer is perfluoro-(6,7-epoxy-4-oxaheptane nitrile).
Claim 8
Dependent Claim
13 words
The blend of Claim 1 wherein the dipolymer cure-site monomer is perfluoro-(phenyl-2,3-epoxypropyl ether).
Claim 9
Dependent Claim
16 words
The blend of Claim 1 wherein the terpolymer has an inherent viscosity of at least 0.4.
References Cited (Backward Citations)
FR1471652A
Cited
EP0011853A2
Cited
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