Thermoplastic copolyetherester elastomers

Details Thermoplastic copolyetherester elastomers Thermoplastic copolyetherester elastomers

1988-08-05

1990-03-06

Foelak, Morton

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

Synthetic resins

From carboxylic acid or derivative thereof

528298, 528300, 528302, 528308, 5283081, C08G 6302

Patent

active

049067290

ABSTRACT:
A segmented thermoplastic copolyetherester having soft segments formed from a long chain polyalkyleneether glycol containing 80 to 97 mole percent of copolymerized tetrahydrofuran and 3 to 20 mole percent of a copolymerized cyclic alkylene oxide, preferably copolymerized 3-methyltetrahydrofuran, provides fibers and films with an improved combination of high tenacity, high unload power, high melting temperatures and low set.

REFERENCES:
patent: 3896078 (1975-07-01), Hoeschele
patent: 3904706 (1975-09-01), Hoeschele
patent: 3907926 (1975-09-01), Brown et al.
patent: 4013624 (1977-03-01), Hoeschele
patent: 4221703 (1980-09-01), Hoeschele
patent: 4250280 (1981-02-01), Tanaka et al.
patent: 4725481 (1988-02-01), Ostapchenko
patent: 4778855 (1988-10-01), Boutni et al.

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