Process and apparatus for extruding a low density...

Details Process and apparatus for extruding a low density... Process and apparatus for extruding a low density...

E - Fixed Constructions

06

B

18/661

E06B 7/16 (2006.01) B29C 47/00 (2006.01) B29C 47/60 (2006.01) E06B 7/23 (2006.01)

Patent

CA 1327686

PROCESS AND APPARATUS FOR EXTRUDING A LOW DENSITY ELASTOMERIC THERMOPLASTIC FOAM ABSTRACT OF THE DISCLOSURE 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 pro- vided to thoroughly mix the thermoplastic elastomer with a blow- ing 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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