Method and apparatus for extruding a low density thermoplastic f

Details Method and apparatus for extruding a low density thermoplastic f Method and apparatus for extruding a low density thermoplastic f

1994-06-07

1995-02-28

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 79, 521 81, 521139, 521140, C08J 900

Patent

active

053937961

ABSTRACT:
A process and apparatus are described for extruding a soft, low density elastomeric thermoplastic foam. A single screw extruder having a very large screw length to diameter ratio is provided to thoroughly mix the thermoplastic elastomer with a blowing agent. A thin, substantially taperless die is also provided to form extruded profiles. By using such a process and apparatus, a variety of complex-shaped extruded profiles may be easily produced.

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