Expandable polymeric composition and method

Details Expandable polymeric composition and method Expandable polymeric composition and method

1987-07-09

1988-03-29

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 53, 264 55, 264DIG5, 521 81, 521 85, 521 88, 521180, 521910, C08J 914, C08J 922

Patent

active

047344415

ABSTRACT:
An expandable alkenyl aromatic polymer composition and methods of preparation are provided. The composition is admixed with a volatile blowing agent and an expansion aid which includes a polyphenylene ether. The composition may be extruded and then expanded by exposure to steam or hot air or may be impregnated with blowing agent and then expanded.

REFERENCES:
patent: 4661302 (1987-04-01), Park
patent: 4705811 (1987-11-01), Park

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