Polymer pelletization process and apparatus

Details Polymer pelletization process and apparatus Polymer pelletization process and apparatus

2004-07-20

2010-02-09

Wollschlager, Jeffrey (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

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

To form particulate product

C264S141000, C264S143000, C264S145000, C264S151000, C425S067000, C425S068000, C425S069000, C425S310000, C425S311000, C425S313000

Reexamination Certificate

active

07658874

ABSTRACT:
An improved process for the pelletization of polymers is disclosed, using a die in which the die holes incorporate a reverse taper along at least a portion of the length thereof. Conditions for operation of an under melt cutter incorporating this die are also disclosed.

REFERENCES:
patent: 3516120 (1970-06-01), Braun et al.
patent: 4678423 (1987-07-01), Bertolotti
patent: 4728276 (1988-03-01), Pauley et al.
patent: 5948336 (1999-09-01), Yoshida et al.
patent: 05-253997 (1993-05-01), None
Japanese Abstract JP 5-253997, Mitsubishi Kasei Corp.

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