Process of extruding lightly crosslinked polyolefin foam

Details Process of extruding lightly crosslinked polyolefin foam Process of extruding lightly crosslinked polyolefin foam

1994-09-30

1996-12-31

Seidleck, James J.

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, 521 79, 521182, 521184, 521189, 264 50, 264 51, 264 54, C08J 918

Patent

active

055895190

ABSTRACT:
A method and apparatus for producing a lightly crosslinked polyolefin foam and articles made therefrom is disclosed. According to the method, a polyolefin resin is lightly crosslinked, mixed with a blowing agent, forwarded as a molten gel admixture through an extruder, cooled, and expelled from a die into a zone of lower pressure, e.g., the atmosphere or a controlled pressure zone, to produce a uniform fine celled expanded shape.

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