Blend of polyvinyl chloride, chlorinated or chlorosulfonated pol

Details Blend of polyvinyl chloride, chlorinated or chlorosulfonated pol Blend of polyvinyl chloride, chlorinated or chlorosulfonated pol

1987-05-26

1988-10-18

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...

525189, 525192, 525239, C08L 2328, C08L 2706, C08L 2308

Patent

active

047788569

ABSTRACT:
A polymer composition comprising (a) 35-65 parts by weight polyvinyl chloride, (b) 10-55 parts by weight chlorinated polyethylene or chlorosulfonated polyethylene elastomer or mixtures thereof containing 24-40 weight percent chlorine, (c) 10-55 parts by weight of a chlorinated polyethylene or chlorosulfonated polyethylene elastomer or mixtures thereof containing 40-52 weight percent chlorine with the proviso that the chlorine level of the elastomers (b) and (c) differ by at least 5 weight percent, and (d) 1-30 parts by weight per 100 parts by weight of total chlorinated polymers (a), (b) and (c) of an ethylene terpolymer containing 48-74 weight percent ethylene, 20-40 weight percent vinyl acetate or alkyl acrylate wherein the alkyl group contains 1-10 carbon atoms, and 6-14 weight percent carbon monoxide. Such compositions are useful as pond liners, roofing membranes, wire and cable covering, and window profiles.

REFERENCES:
patent: 3845166 (1974-10-01), Betts et al.
patent: 4280940 (1981-07-01), Klug et al.
patent: 4489193 (1984-12-01), Goswami
patent: 4556694 (1985-12-01), Wallace
patent: 4677163 (1987-06-01), Tada et al.
Elvaloy.RTM. Resin Modifiers, Du Pont Company, Polymer Products Department, Wilmington, Del. 19898.

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