Heat-stabilized/non-yellowing chloropolymers

Details Heat-stabilized/non-yellowing chloropolymers Heat-stabilized/non-yellowing chloropolymers

1990-04-04

1991-12-03

Hoke, Veronica P.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524114, 524147, 524151, 524399, 524400, C08K 5526, C08K 515, C08K 509

Patent

active

050701282

ABSTRACT:
Heat-stabilized, non-yellowing chlorinated polymers having extended working ranges, notably PVC polymers and copolymers, contain effective stabilizing amounts of (a) at least one organozinc compound, (b) at least one organic calcium, barium, magnesium or strontium compound, and (c) at least one sodium .beta.-diketonate.

REFERENCES:
patent: 4427816 (1984-01-01), Aoki et al.
patent: 4751261 (1988-06-01), Miyata et al.
patent: 4950704 (1990-08-01), Croce et al.
Patent Abstracts of Japan, vol. 6, No. 257 (C-140) [1135], Dec. 16, 1982.
Chemical Abstracts, vol. 98, 1982, p. 41., Resume No. 108345d.

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