Patent EP0105433A1 successfully refreshed from Google Patents.
EP0105433A1
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EP
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Fluoroelastomere composition
Assignee: Daikin Industries Ltd
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Filing: 1983-09-24
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Granted: —
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Expires: 2003-09-24
Abstract
Abstract A fluoroelastomer composition comprising a fluoroeias- tomer and a thermoplastic fluoroelastomer, which has good roll retention and roll processability and a mixed compound of which has little self-adhesiveness.
Inventors
- 👤 Yutaka Ueta
- 👤 Shoji Kawachi
- 👤 Kazutaka Hosokawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 10:02
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L2205/00; C08L2205/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
10 words
A fluoroelastomer composition comprising a fluoroelastomer and a thermoplastic fluoroelastomer.
Claim 2
Dependent Claim
10 words
A fluoroelastomer composition comprising a fluoroelastomer and a thermoplastic fluoroelastomer.
Claim 3
Dependent Claim
39 words
A composition according to claim 1, wherein the thermoplastic fluoroelastomer comprises a polymeric chain comprising at least one elastomeric polymer segment and at least one non-elastomeric polymer segment, at least one of these segments being a fluorine-containing polymer segment.
Claim 4
Dependent Claim
28 words
A composition according to claim 2, wherein the'weight ratio of the elastomeric polymer segment and the non-elastomeric polymer segment is from 40 : 60 to 95 : 5.
Claim 5
Dependent Claim
238 words
A composition according to claim 1, wherein the thermoplastic fluoroelastomer comprises a polymeric chain comprising two or three polymer segments, at least one iodine atom liberated from an iodinated compound and bonded to a terminal carbon atom of the polymeric chain and a fragment of the iodinated compound excluding said liberated iodine atom therefrom; one polymer segment (when the polymeric chain comprises two polymer segments) or one or two polymer segments (when the polymeric chain comprises three polymer segments) being elastomeric polymer segment(s) having a molecular weight of from 30,000 to 1,200,000 selected from the group consisting of (1) a vinylidene fluoride/hexafluoropropylene or pentafluoropropylene/tetrafluoroethylene polymer in a molar ratio of 45-90 : 5-50 : 0-35 and (2) a perfluoro (C 1 -C 3 -alkyl vinyl ether) (including those having plural ether linkages)/tetrafluoroethylene/vinylidene fluoride polymer in a molar ratio of 15-75 : 0-85 : 0-85, other polymer segment(s) being a non-elastomeric polymer having a molecular weight of from 3,000 to 400,000 selected form the group consisting of (3) a vinylidene fluoride/tetrafluoroethylene polymer in a molar ratio of 0 : 100 to 100 : 0 and (4) a ethylene/tetrafluoroethylene/hexa- fluoropropylene, 3,3,3-trifluoropropylene-1, 2-trifluoromethyl-3,3,3-trifluoropropylene-l or perfluoro(C 1 -C 3 -alkyl vinyl ether) (including those having plural ether linkages) polymer in a molar ratio of 40-60 : 60-40 : 0-30, and the weight ratio of the elastomeric polymer segment and the non-elastomeric polymer segment being from 40 : 60 to 95 : 5.
Claim 6
Dependent Claim
18 words
A composition according to claim 1, which contains 20 to 95 % by weight of the thermoplastic fluoroelastomer.
Claim 7
Dependent Claim
18 words
A composition according to claim 1, which contains 30 to 90 % by weight of the thermoplastic fluoroelastomer.
Claim 8
Dependent Claim
12 words
A composition according to claim 1 which further comprises a cross-linking agent.
Claim 9
Dependent Claim
11 words
A formed article of a fluoroelastomer composition according to claim 1.
Claim 10
Dependent Claim
14 words
A formed article according to claim 8, which is a film or a sheet.
Claim 11
Dependent Claim
11 words
A formed article according to claim 8, which is an O-ring.
Claim 12
Dependent Claim
24 words
A process for preparing a fluoroelastomer composition of claim 1 comprising co-coagurating the fluoroelastomer and the thermoplastic fluoroelastomer from an aqueous dispersion containing them.
Claim 13
Dependent Claim
18 words
A process for preparing a fluoroelastomer composition of claim 1 comprising kneading the fluoroelastomer and the thermoplastic fluoroelastomer.
References Cited (Backward Citations)
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