Process for preparing polyester elastomers

Details Process for preparing polyester elastomers Process for preparing polyester elastomers

1984-07-11

1985-06-04

Phynes, Lucille M.

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

Synthetic resins

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

525418, 528300, 528301, 528302, 528308, C08G 6376

Patent

active

045215715

ABSTRACT:
A process for preparing polyester elastomers from a dicarboxylic acid, mainly an aromatic dicarboxylic acid, or an ester-forming derivative thereof, a low molecular weight glycol, mainly 1,4-butanediol, and a polyoxyalkylene glycol is provided. This process is characterized in that at least 10 wt. % of the polyoxyalkylene glycol comprises a poly(oxy-2-methyl-3,3-propylene)diol. The obtained polyester elastomers have excellent low-temperature properties and elastic recovery.

REFERENCES:
patent: 3595937 (1971-07-01), Weisseruel et al.
patent: 4122073 (1978-10-01), Georgoudis
patent: 4251652 (1981-02-01), Tanaka et al.
patent: 4328333 (1982-05-01), Barbee et al.
patent: 4381379 (1983-04-01), Toga et al.
patent: 4387213 (1983-06-01), Horlbeck et al.

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