Chlorinated EPDM with superior stability

Details Chlorinated EPDM with superior stability Chlorinated EPDM with superior stability

1990-07-19

1991-09-03

Lipman, Bernard

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253317, 5253591, 5253592, C08F 820, C08F 822

Patent

active

050456032

ABSTRACT:
A chlorinated ethylene-alpha olefin-nonconjugated diolefin terpolymer having a chlorine content of from about 0.5 to 14 percent by weight characterized by superior viscosity stability on storage or exposure to elevated temperatures is obtained by chlorinating an ethylene-alpha olefin-nonconjugated diolefin terpolymer wherein said nonconjugated diolefin is an acyclic nonconjugated diolefin characterized in that one olefinic bond is monosubstituted and terminal and the other olefinic bond is trisubstituted. A vulcanizable rubber composition comprising said chlorinated ethylene-alpha olefin-nonconjugated diolefin terpolymer and cure active agents is also provided.

REFERENCES:
patent: 3524826 (1970-08-01), Kresge et al.
patent: 3896095 (1975-07-01), Morrissey
patent: 3936430 (1976-02-01), Schoen et al.
patent: 3956247 (1976-05-01), Landi et al.
patent: 4548995 (1985-10-01), Kawalski et al.
patent: 4652616 (1987-03-01), Kamiya et al.
patent: 4814390 (1989-03-01), Tojo et al.

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