Process for preparing additive concentrates for carbonate polyme

Details Process for preparing additive concentrates for carbonate polyme Process for preparing additive concentrates for carbonate polyme

1982-12-17

1984-08-07

Lilling, Herbert J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

524413, 524508, 525146, 525147, 525148, 523351, C08K 300, C08K 310, C08L 6900

Patent

active

044644876

ABSTRACT:
Carbonate polymer compositions comprise a carbonate polymer having dispersed therein a concentrate consisting essentially of a copolymer of an alkenyl-aromatic monomer and an .alpha.,.beta.-olefinically unsaturated nitrile monomer and a powdered or crystalline additive. The concentrates allow for good dispersion of additives in the carbonate polymer, provide for clean and efficient use of additives, and are easily processable. The copolymeric base resin does not deleteriously affect the good physical properties of the carbonate polymer with which it is blended at typical additive let down levels.

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