Expanded thermoplastic resinous materials and process for produc

Details Expanded thermoplastic resinous materials and process for produc Expanded thermoplastic resinous materials and process for produc

1988-12-30

1990-06-26

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, 521139, 521146, C08J 918

Patent

active

049372726

ABSTRACT:
Expanded thermoplastic resinous materials are obtained by mixing styrene-based polymers having mainly a syndiotactic configuration or a thermoplastic resin composition containing said styrene-based polymer and a foaming agent, and then heating the resulting mixture. These expanded materials are excellent in heat resistance and are usefully employed in applications where high heat resistance is needed, e.g., as construction materials, buffer materials and so forth.

REFERENCES:
patent: 4680353 (1987-07-01), Ishihara et al.
patent: 4772441 (1988-09-01), Voss
patent: 4774301 (1988-09-01), Campbell, Jr. et al.
patent: 4778829 (1988-10-01), Ichimura et al.
patent: 4798749 (1989-01-01), Arch et al.
patent: 4808680 (1989-02-01), Schmidt et al.
patent: 4839396 (1989-06-01), Tusim

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