Process for producing polyoxyalkylene glycol modified polyesters

Details Process for producing polyoxyalkylene glycol modified polyesters Process for producing polyoxyalkylene glycol modified polyesters

1979-12-12

1981-03-03

Seccuro, Carman J.

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

Synthetic resins

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

528279, 528281, 528283, 528285, 528301, C08L 6702, C08L 7102

Patent

active

042542413

ABSTRACT:
Improved process for producing polyesters and copolyesters modified with certain polyoxyalkylene glycols employs coordination complex catalysts of (I) a metal halide compound and certain silicon compounds or (II) a mixture of said coordination complex catalyst of said compounds with antimony diglycollate.

REFERENCES:
patent: 3416952 (1968-12-01), McIntyre et al.
patent: 4049621 (1977-09-01), Gilkey et al.
patent: 4077944 (1978-03-01), Weinberg et al.
patent: 4116942 (1978-09-01), Weinberg et al.
patent: 4143057 (1979-03-01), Weinberg et al.
patent: 4156072 (1979-05-01), Weinberg et al.
D. Coleman-Block Copolymers: Copolymerization of Ethylene Terephthalate and Polyoxyethylene Glycols-J.P.S. vol XIV pp. 15-28 (1954).

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