Process for the preparation of crystalline copolyesters

Details Process for the preparation of crystalline copolyesters Process for the preparation of crystalline copolyesters

1991-04-18

1993-02-16

Nutter, Nathan M.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524262, 524601, 524730, 528272, 528282, 528283, C08L 6702

Patent

active

051872161

ABSTRACT:
Disclosed is a process for the preparation of crystalline copolyesters from substantially amorphous, diethylene glycol-containing copolyesters wherein the a zeolite is incorporated in the substantially amorphous copolyester to promote crystallization upon heating a particulate form of the resulting copolyester at crystallizing effective temperatures.

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patent: 5041525 (1991-08-01), Jackson

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