Thermoplastic polyether urethane

Details Thermoplastic polyether urethane Thermoplastic polyether urethane

1997-06-10

1999-09-28

Gorr, Rachel

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 79, 528906, 428364, 4284231, 152151, 473351, C08G 1848

Patent

active

059590599

ABSTRACT:
A thermoplastic polyether polyurethane having good rebound resilience and low hysteresis properties is prepared by the reaction of a diisocyanate with a hydroxyl terminated polyether having a weight average molecular weight of at least 1,400 and a glycol chain extender. The polyether contains alkylene oxide repeat units having from 2 to 6 carbon atoms and the chain extender glycol has from 2 to 16 carbon atoms. The amount of the chain extender glycol is from about 0.25 to about 2 moles per mole of the polyether.

REFERENCES:
patent: 3016364 (1962-01-01), Muller et al.
patent: 4120850 (1978-10-01), Pechold
patent: 4202957 (1980-05-01), Bonk
patent: 4447590 (1984-05-01), Szycher
patent: 4877856 (1989-10-01), Hall et al.
patent: 5545706 (1996-08-01), Barksby et al.
Saunders & Frisch; Polyurethanes; pp. 284,285,294, 1962

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