Expandable styrene type resin particles and foamed articles from

Details Expandable styrene type resin particles and foamed articles from Expandable styrene type resin particles and foamed articles from

1994-07-28

1996-12-03

Le, H. Thi

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283055, 4283148, 4283157, 428327, 428402, 428521, 521 50, 521 56, 521 59, 521 60, 521131, B32B 326, C08J 900

Patent

active

055806490

ABSTRACT:
A foamed article of styrene type resin, in which base resin particles are styrene type resin particles obtainable by a graft polymerization of a cis-rich polybutadiene with a styrene type monomer, a blowing agent contains n-pentane as its main component and the foamed article shows a density of 0.015-0.040 g/cm.sup.3, an average foam diameter of 60-300 micrometers and a closed cell foam rate of not less than 50%.

REFERENCES:
patent: 3996311 (1976-12-01), Westphal et al.
patent: 4113672 (1978-09-01), Pillar
patent: 4255315 (1981-03-01), Anspon
patent: 4433099 (1984-02-01), K upper et al.
patent: 5206271 (1993-04-01), Hahn et al.
patent: 5290819 (1994-03-01), Witt et al.

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