Method of manufacturing thermoplastic polyester resin foam by ex

Details Method of manufacturing thermoplastic polyester resin foam by ex Method of manufacturing thermoplastic polyester resin foam by ex

1995-12-27

1999-09-28

Crispino, Richard

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 94, 15624411, 15624418, 264 3732, 264 459, 264 51, 264 54, 264101, 264146, 264151, 26421123, B29C 4706, B29C 4740, B29C 4750, B29C 4776

Patent

active

059581646

ABSTRACT:
A thermoplastic polyester resin is fed into a twin extruder, wherein a resin is heated for melting, thereby removing moisture in the resin by evacuating and sucking from a vent port thereof, injecting a foaming agent into the resin to which is pushed out as a foaming sheet and, after that, forming the foaming sheet which is divided into a forming body and a trimming loss, whereby the trimming loss is crushed to obtain crushed materials which are provided so as to put the materials into the twin extruder as collection materials and recycle them.

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