Copolyesters derived from aromatic polyesters and glycol polyest

Details Copolyesters derived from aromatic polyesters and glycol polyest Copolyesters derived from aromatic polyesters and glycol polyest

1979-12-26

1981-09-01

Welsh, Maurice J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08L 6702

Patent

active

042873258

ABSTRACT:
Thermoplastic copolyester compositions prepared from combination of a bisphenol A polyester and a copolyester of poly(ethylene terephthalate) modified with 1,4-cyclohexanedimethanol. The compositions are characterized by excellent melt processability, high impact strength, and flexural modulus that is higher than that of either of the polymers used in the preparation of the thermoplastic copolyester compositions.

REFERENCES:
patent: 3651172 (1972-03-01), Barkey et al.
patent: 3946091 (1976-03-01), Sakata et al.
patent: 4031165 (1977-06-01), Saiki et al.

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