Thermoset polyurethane prepared from a polypropylene ether triol

Details Thermoset polyurethane prepared from a polypropylene ether triol Thermoset polyurethane prepared from a polypropylene ether triol

1979-07-20

1980-12-30

Welsh, Maurice J.

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...

C08G 1848

Patent

active

042424909

ABSTRACT:
A thermoset, segmented and elastomeric polypropylene ether urethane is made by reacting together tolylene diisocyanate, ethylene glycol and a polypropylene ether triol having an average molecular weight of from 7,000 to 14,000, in certain ratios. The resulting polyurethane exhibits a temperature retraction TR-10 of less than about -35.degree. C. and a Goodyear-Healy rebound of greater than about 55%.

REFERENCES:
patent: 3746692 (1973-07-01), Olstowski et al.
patent: 3829505 (1974-08-01), Herold
patent: 3993576 (1976-11-01), Barron
patent: 4119594 (1978-10-01), Iobst et al.

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