Compatible blends of chlorinated polyvinyl chloride resins and s

Details Compatible blends of chlorinated polyvinyl chloride resins and s Compatible blends of chlorinated polyvinyl chloride resins and s

1981-08-17

1983-02-01

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...

525192, C08L 2508, C08L 2724

Patent

active

043716660

ABSTRACT:
A flame retardant blend of thermoplastic polymers comprises a blend of 1-99 percent by weight of a chlorinated polyvinyl chloride resin and 1-99 percent by weight of a copolymer of styrene and an ethylenically unsaturated dicarboxylic acid monomer, the blend having a heat distortion temperature in excess of 200.degree. F., and a single glass transition property. Such blends which contain at least 40 percent by weight of said chlorinated polyvinyl chloride resin and an oxygen index of at least 0.25 also exhibit flame retardant properties.

REFERENCES:
patent: 3626033 (1971-12-01), Keskkula et al.
patent: 3632839 (1972-01-01), Young et al.
patent: 3720734 (1973-03-01), Kopacki et al.
patent: 4151218 (1979-04-01), Lee

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