Foam and process for producing a carbon dioxide blowing agent

Details Foam and process for producing a carbon dioxide blowing agent Foam and process for producing a carbon dioxide blowing agent

1997-11-12

1999-11-30

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 79, 521 81, 521 97, 521146, 521154, C08J 908

Patent

active

059944200

ABSTRACT:
The present invention provides a process for producing thermoplastic foam, including:
(a) melting a thermoplastic polymer to produce a polymer melt;
(b) introducing a carbon dioxide blowing agent into the polymer melt;
(c) adding to the polymer melt one or more additives selected from the group consisting of

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