Apparatus for crystallizing polymer particles

Details Apparatus for crystallizing polymer particles Apparatus for crystallizing polymer particles

2009-02-23

2009-11-24

Truong, Duc (Department: 1796)

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

C264S013000, C264S345000, C528S308000, C528S491000, C528S501000, C528S50200C, C528S503000, C425S149000, C425S384000

Reexamination Certificate

active

07622061

ABSTRACT:
The present invention is a process and apparatus for conserving loss of heat while forming and crystallizing polymer particles in a liquid. The cooling liquid quenches the polymer during particle molding to facilitate shaping. The cooling liquid cools the polymer particles not below a temperature that allows adequate crystallization to occur. Cooling liquid is quickly switched with a warming liquid, so the temperature of the polymer is in the crystallization range and the heat of crystallization self-heats the polymer to a higher temperature.

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