Foamable thermoplastic compositions, foamed articles and foaming

Details Foamable thermoplastic compositions, foamed articles and foaming Foamable thermoplastic compositions, foamed articles and foaming

1984-12-28

1987-07-28

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 455, 264 54, 521 79, 521 81, 521 92, 521 95, 521134, 521138, 521139, C08J 912

Patent

active

046832475

ABSTRACT:
Foamable thermoplastic compositions are described which are based on pre-compounded concentrated blends of an inorganic non-fibrous particulate foaming agent and a carrier polymer. The foamable thermoplastic polymer is selected from among aromatic polycarbonates alone or with acrylonitrile-butadiene-styrene copolymers polyesters, poly(ester-carbonates), and polyetherimides. The foaming agent may optionally be added as part of the concentrate.

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patent: 4174432 (1979-11-01), Niznik
patent: 4243575 (1981-01-01), Myers et al.
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patent: 4351911 (1978-06-01), Fox
patent: 4543368 (1985-09-01), Smearing et al.
patent: 4544677 (1985-10-01), Allen et al.

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