Fluoromodified polyesters having improved processability

Details Fluoromodified polyesters having improved processability Fluoromodified polyesters having improved processability

1994-12-02

1997-11-11

Short, Patricia A.

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...

524394, 524400, 525444, 528491, C08L 6702

Patent

active

056865228

ABSTRACT:
Thermoplastic polyester compositions comprising polyester resin modified by introducing perfluoropolyether blocks in the polymeric chain characterized by high crystallization rate of the melted mass and therefore by an improved processability. In particular the use of such compositions in a process for preparing molded thermoplastic articles allows working at lower temperatures of the mold and with shorter molding times. Process for preparing modified resins.

REFERENCES:
patent: 3761450 (1973-09-01), Herwig et al.
patent: 4212791 (1980-07-01), Avery et al.
patent: 4996269 (1991-02-01), Richeson
CA77(6):35694w American Chemical Society, Abstract of JP 46,029,977, Aug. 1971 (Showa).

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