Method for densifying a thermoplastic polymer

Details Method for densifying a thermoplastic polymer Method for densifying a thermoplastic polymer

1996-07-25

1997-09-16

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264 15, 264DIG69, B29C 6720

Patent

active

056677464

ABSTRACT:
A method and apparatus for densifying a thermoplastic polymer are disclosed. Particles of a thermoplastic polymer are introduced into a chamber, suspended with a fluid flow in the chamber, and while suspended, the particles are heated and softened to form pieces of densified thermoplastic polymer which are too dense to remain suspended in the fluid flow. The pieces of densified polymer are collected from the bottom of the chamber. A range of particle sizes can be efficiently and continuously densified without adjusting the apparatus.

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