Polyester composition with modifier hydroxyl compound

Details Polyester composition with modifier hydroxyl compound Polyester composition with modifier hydroxyl compound

2010-10-21

2011-10-18

Boykin, Terressa M (Department: 1765)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

C422S245100, C422S255000, C422S261000, C528S481000, C528S499000, C528S50200C

Reexamination Certificate

active

08039578

ABSTRACT:
A process for producing non-solid-stated polyester polymer particles having one or more properties similar to polyester polymer particles that have undergone solid-state processing. In one embodiment, the process comprises (a) forming polyester polymer particles from a polyester polymer melt; (b) quenching at least a portion of the particles, (c) drying at least a portion of the particles, (d) crystallizing at least a portion of the particles, (e) annealing at least a portion of the particles. At all points during and between steps (b) through (e), the average bulk temperature of the particles is maintained above 165° C.

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