Novel matting agent and its use

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

1986-08-22

1990-12-18

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...

524527, 5263443, C08F 1406, C08L 2706

Patent

active

049787187

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
patent: 4208499 (1980-06-01), Maruhashi
patent: 4340530 (1982-07-01), Higashiguchi
patent: 4456735 (1984-06-01), Engelmann
patent: 4567217 (1986-01-01), Yamazaki

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