Polyolefins as nucleating agent for foamed engineering polymers

Details Polyolefins as nucleating agent for foamed engineering polymers Polyolefins as nucleating agent for foamed engineering polymers

1998-12-23

2000-09-05

Foelak, Morton

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Including surface treatment of porous body

2643281, 2643284, 521 79, 521 81, 521134, 521138, 521139, C08J 900, B29B 700

Patent

active

061138223

ABSTRACT:
A process for producing structural thermoplastic foam is provided which involves gas expansion of a melted thermoplastic resin composition containing an amount of a polyolefin resin effective as a nucleating agent. The thermoplastic resin compositions provided exhibit an improved uniformity of cell structure in the resultant structural thermoplastic foam as a result of the incorporation of the polyolefin nucleating agent. The process and compositions are useful in the production of structural thermoplastic foam articles.

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