Expandable styrene polymers

Details Expandable styrene polymers Expandable styrene polymers

1995-05-12

1996-06-11

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 56, 521 60, 521149, 521150, C08J 916, C08J 920

Patent

active

055256376

ABSTRACT:
The invention relates to expandable styrene polymers for elastic polystyrene foams, comprising
a) from 50 to 90% by weight of polystyrene and/or a styrene copolymer containing at least 50% by weight of copolymerized styrene,
b) from 5 to 30% by weight of at least one styrene-soluble elastomer,
c) from 5 to 20% by weight of at least one block copolymer containing styrene as one component,
d) from 1 to 15% by weight, based on the sum of a), b) and c), of a low-boiling blowing agent, and, if desired,
e) conventional additives in effective amounts,

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patent: 5272182 (1993-12-01), Burnell
H. G. Elias, Markomolekule, Huthig-Verlag, Heidelberg 1971, S. 52-64.
Echte, Rubber-Toughened Stryene Plymers, Advances in Chemistry Series No. 222, 1989.

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