Making thermoplastic items

Details Making thermoplastic items Making thermoplastic items

1984-11-26

1986-01-07

Flint, Jr., J. Howard

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Forming continuous work followed by cutting

264160, 264178R, 264237, 264322, 2642971, 2642975, 2642976, 425 71, 425325, 425335, 425363, 425371, 15624424, 15624427, B29C 1700, B29D 702

Patent

active

045633207

ABSTRACT:
An extruder delivers an extrudate at a temperature in the low end of the extruding range between 250.degree. and 550.degree. F. between opposed rollers carrying mating dies. The dies are sprayed with mold release agent when away from the extrudate. The extrudate is cooled after leaving the region between a pair of rollers and may enter the region between other similar pairs of rollers. Cold plastic inserts may be inserted into molded items.

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