Flame resistant, expandable styrene polymers and foams, and flam

Details Flame resistant, expandable styrene polymers and foams, and flam Flame resistant, expandable styrene polymers and foams, and flam

1990-08-10

1991-04-23

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 57, 521 59, 521 76, 521 841, 521 90, 521 98, 521136, 521138, 521139, 521907, C08J 920

Patent

active

050101110

ABSTRACT:
Flame-resistant, expandable styrene polymers containing a styrene (co)polymer, from 0.4 to 6% by weight of hexabromocyclododecane having a mean particle size of from 1 to 50 .mu.m, the particles being provided with a firm coating which has a thickness of from 1/100 to 1/10 of the particle diameter and is insoluble in water and styrene, from 1 to 10% by weight of a C.sub.3 - to C.sub.6 -hydrocarbon as blowing agent, and, if desired, customary additives, are distinguished by a reduced internal water content and can be processed to form foams which have an improved foam structure and high UV stability.

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patent: 4393146 (1983-07-01), Rigler et al.
patent: 4517314 (1985-05-01), Reese et al.
patent: 4761432 (1988-08-01), Sonnenberg et al.

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