EP0453262A2
Expired / Lapsed
EP
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Chlorinated ethylene-alpha-olefin copolymer rubber and composition thereof
Assignee: Mitsui Chemicals Inc
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Filing: 1991-04-17
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Granted: —
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Expires: 2011-04-17
Abstract
Abstract A chlorinated ethylene-α-olefin copolymer rubber having a content of chlorine bonded to a primary carbon atom of 0.6 % by weight or more and a content of chlorine bonded to a tertiary carbon atom of 1.6% by weight or less. This chlorinated ethylene-α-olefin copolymer rubber shows a high rate of vulcanization and high heat resistance.
Inventors
- 👤 Tetsuo C/O Mitsui Petrochem. Ind. Ltd. Tojo
- 👤 Keiji C/O Mitsui Petrochem. Ind. Ltd. Okada
- 👤 Yoshiharu C/O Mitsui Petrochem. Ind. Ltd Kikuchi
- 👤 Yasuhiko C/O Mitsui Petrochem. Ind. Ltd Otawa
- 👤 Katsuo C/O Mitsui Petrochem. Ind. Ltd. Okamoto
- 👤 Toshiyuki C/O Dupont-Mitsui Polychem. Co. Maeda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 17:26
CPC Classifications
C; C08; C08F; C08F212/00; G; G03; G03G; G03G7/00; G03G7/0053; C08F8/00; C08F8/18; C08F8/20; C08L; C08L23/00; C08L23/26; C08L23/28; G03G7/0006; G03G7/002; G03G7/0026; G03G7/0046
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
62 words
A chlorinated ethylene-α-olefin copolymer rubber having a total chlorine content from 20 to 40% by weight, a content of chlorine bonded directly to a primary carbon atom of 0.6 % by weight or more, a content of chlorine bonded directly to a tertiary carbon atom of 1.6% by weight or less, and a Mooney viscosity (ML l+4 (121°C)) of 10 to 190.
Claim 2
Dependent Claim
28 words
A chlorinated copolymer rubber according to claim 1 obtainable from an ethylene-α-olefin copolymer rubber having a molar ratio of ethylene units to α-olefin units from 85:15 to 95:5.
Claim 3
Dependent Claim
20 words
A chlorinated copolymer rubber according to claim 1 or 2 comprising α-olefin units containing from 3 to 20 carbon atoms.
Claim 4
Dependent Claim
23 words
A composition comprising a chlorinated copolymer rubber according to claim 1, 2 or 3, a vulcanizing agent, a reinforcing agent and a softener.
Claim 5
Dependent Claim
23 words
A composition according to claim 4 in which the vulcanizing agent is a triazine compound, an organic peroxide or a reactive phenolic resin.
Claim 6
Dependent Claim
33 words
A composition according to claim 4 or 5 comprising 300 weight parts or less of reinforcing agent and 200 weight parts or less of softner per 100 weight parts of chlorinated copolymer rubber.
Claim 7
Dependent Claim
34 words
A thermoplastic elastomer composition comprising a vulcanizate of a copolymer rubber according to claim 1, 2 or 3 or of a composition according to claim 4, 5 or 6 and a crystalline polyolefin resin.
Claim 8
Dependent Claim
32 words
A thermoplastic composition according to claim 7 comprising from 10 to 60 weight parts of crystalline polyolefin resin per 100 weight parts of invulcanized chlorinated ethylene-α-olefin copolymer rubber and crystalline polyolefin resin.
Claim 9
Dependent Claim
19 words
A thermoplastic composition according to claim 7 or 8 having a gel content of 45% by weight or more.
Claim 10
Dependent Claim
35 words
A shaped article comprising a chlorinated copolymer rubber according to claim 1, 2 or 3, a composition according to claim 4, 5 or 6 or a thermoplastic composition according to claim 7, 8 or 9.
References Cited (Backward Citations)
No citation records indexed.
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