Fire retardant blend of interpolymer composition, chlorinated vi

Details Fire retardant blend of interpolymer composition, chlorinated vi Fire retardant blend of interpolymer composition, chlorinated vi

1978-08-28

1979-07-10

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...

260 4575B, 260 4575K, 528 85, C08L 3320

Patent

active

041607937

ABSTRACT:
Flame retardant blends having good impact resistance and a high heat deflection temperature which comprise: (1) an interpolymer comprising: (a) crosslinked (meth)acrylate; (b) crosslinked styrene-acrylonitrile; and (c) uncrosslinked styrene-acrylonitrile polymeric components; (2) a chlorinated vinyl chloride polymer; and (3) a vinyl chloride polymer. The blends have utility as an outdoor construction material for the construction industry, for example, for residential siding, gutter systems, shutters and the like. The amount of the interpolymer (1) which is present in the blend predominates over the respective weight amounts of either of the two other components (2) or (3).

REFERENCES:
patent: 3639526 (1972-02-01), Kameishi
patent: 3655826 (1972-04-01), Fellmann et al.
patent: 3944631 (1976-03-01), Yu et al.

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