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

1990-12-11

1991-08-27

Foelak, Morton

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

521 57, 521 76, 523220, 523223, B32B 516, B32B 900

Patent

active

050432184

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.

REFERENCES:
patent: 3887754 (1975-06-01), Walter
patent: 4086191 (1978-04-01), Hinselmann et al.
patent: 4272583 (1981-06-01), Hahn et al.
patent: 4287258 (1981-09-01), Hahn et al.
patent: 4369227 (1983-01-01), Hahn et al.
patent: 4520136 (1985-05-01), Schwarz
patent: 4548956 (1985-10-01), Schwarz
patent: 4980382 (1990-12-01), Sonnenberg et al.

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