Uniform minimization of plastic foam cell size

Details Uniform minimization of plastic foam cell size Uniform minimization of plastic foam cell size

1985-05-06

1986-04-01

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 58, 521 59, 521139, 521910, C08J 916, C08J 918

Patent

active

045798729

ABSTRACT:
Expandable beads and the like of thermoplastic organic polymer material, advantageously lightly-crosslinked in preparation, which are imbibed with halocarbon and/or light hydrocarbon (including mixed) blowing agents are advantageously tempered to provide excellent quality, uniformly fine-celled expanded cellular products therefrom by a quick quench from imbibition temperature to below 10 or so .degree. C. within one minute.

REFERENCES:
patent: 3960784 (1976-06-01), Rubeus
patent: 4226942 (1980-10-01), Wei

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