Cured elastomers with improved high temperature tear strength

Details Cured elastomers with improved high temperature tear strength Cured elastomers with improved high temperature tear strength

1984-01-06

1985-03-05

Seccuro, Carman J.

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

Synthetic resins

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

525194, 525196, 525240, 525193, C08L 2326, C08L 2328

Patent

active

045031924

ABSTRACT:
Blends of elastomers of chlorinated or chlorosulfonated polyethylene and ultra high molecular weight, i.e. at least one million, when cured with conventional curing systems for the chlorinated or chlorosulfonated polyethylene have higher tear strengths at temperatures of about 150.degree. C. than do the unblended elastomers. The amount of polyethylene in the blend is 5 to 50 parts by weight per 100 parts by weight of elastomer. The blend, thus produced has a modulus (M.sub.100) of greater than 1000 psi prior to curing.

REFERENCES:
patent: 3641216 (1972-02-01), Schnebelen et al.
patent: 4141878 (1979-02-01), Coran et al.

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