Flame-retardant additive for foamed polystyrene

Details Flame-retardant additive for foamed polystyrene Flame-retardant additive for foamed polystyrene

1978-06-09

1980-01-08

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252 81, 521 79, 521 85, 521 92, 521 97, 521146, 521907, 264 50, 264211, 264DIG5, C08J 900, C08J 914, C09K 328

Patent

active

041827996

ABSTRACT:
A flame-retarding additive for foamed polystyrene is composed of 40 to 56 weight percent of halogenated hydrocarbon, 9 to 15 weight percent of antimony oxide, 14 to 22 weight percent of zinc borate, and 16 to 28 weight percent of hydrated alumina.

REFERENCES:
patent: 2611694 (1952-09-01), Becker
patent: 2676927 (1954-04-01), McCurdy et al.
patent: 3635850 (1972-01-01), Birkner et al.
patent: 3639299 (1972-02-01), McDowall
patent: 3874889 (1975-04-01), Geppert et al.

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