Thermoplastic copolyester compositions modified with epoxide com

Details Thermoplastic copolyester compositions modified with epoxide com Thermoplastic copolyester compositions modified with epoxide com

1999-06-11

2000-02-22

Acquah, Sam

Stock material or miscellaneous articles

Composite

Of polyester

528275, 528286, 528300, 528301, 528302, 528308, 5283086, 525437, 525438, 428480, B32B 2710, C08F 2000

Patent

active

060278188

ABSTRACT:
Copolyether ester elastomers are provided which contain epoxide compounds. The compositions show improved bloom resistance in the presence of diamines with minimum increase in melt viscosity. Also disclosed are methods to improve appearance and eliminate bloom from finished products comprising thermoplastic copolyesters by lowering the level of acid terminated oligomers in the thermoplastic copolyesters with epoxide compounds.

REFERENCES:
patent: 3723568 (1973-03-01), Hoeschele
patent: 3723569 (1973-03-01), Hoeschele
patent: 5541258 (1996-07-01), Aonuma et al.

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