Novel matting agent and its use

Details Novel matting agent and its use Novel matting agent and its use

1985-08-15

1990-04-03

Henderson, Christopher

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

524515, 525222, 525239, 5263232, 526344, 5263443, C08L 5100, C08L 2706, C08F 1406

Patent

active

049141546

ABSTRACT:
A matting agent for plastic compositions comprising either a high molecular weight, gel-containing vinyl chloride polymer with a gel content of 10 to 99% by weight, a maximum mercury porosity of 0.2 cm.sup.3 /g, a maximum plasticizer absorption of 15%, a particle size parameter d' of 10 to 80 .mu.m and a coefficient of uniformity n greater than 3, or a high molecular weight, gel containing copolymer of vinyl chloride and 1 to 40% by weight of comonomer with a gel content of 10 to 99% by weight, a maximum mercury porosity of 0.10 cm.sup.3 /g, a maximum plasticizer absorption of 10%, a particle size parameter d' of 10 to 80 .mu.m and a coefficient of uniformity n greater than 3, plastic articles containing said matting agent and a method of imparting a matt to the surface of plastic articles.

REFERENCES:
patent: 3538067 (1970-11-01), Bognar
patent: 3706705 (1972-12-01), Koyanagi
patent: 3753966 (1973-08-01), Koyanagi
patent: 3767637 (1973-10-01), Egli
patent: 3956251 (1976-05-01), Feiler
patent: 4058495 (1977-11-01), Serratore
patent: 4206298 (1980-06-01), Reichert

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