Method of making thermoplastic foamed articles using supercritic

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By mechanically introducing gas into material

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264 51, 264 53, B29C 4402

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active

056701020

ABSTRACT:
Foamed thermoplastic articles, both filled and unfilled foamed articles have a foamed density of greater than 0.03 grams per cubic centimeters (g/cm.sup.3), cell sizes in the range of 10 to 300 micrometers (.mu.m) with cell wall thicknesses of greater than 0.1 .mu.m but less than 2 .mu.m and a process for making the same.

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