Isocyanate capped urethane-containing prepolymer prepared from p

Details Isocyanate capped urethane-containing prepolymer prepared from p Isocyanate capped urethane-containing prepolymer prepared from p

1979-12-13

1981-06-16

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...

521159, C08G 1810

Patent

active

042739136

ABSTRACT:
The invention disclosed is for novel polyols and a method of making said polyols which comprises interconnecting polyols with epihalohydrin in the presence of substantially an equimolar amount of base based on the epihalohydrin thereby forming an extended polyol with terminal hydroxyl groups and at least one hydroxyl group attached directly to the backbone chain internally. These resultant polyols can be used to make polyurethane foams having high resiliency.

REFERENCES:
patent: 3222300 (1965-12-01), Loew
patent: 3322698 (1967-05-01), Wiles et al.
patent: 3374204 (1968-03-01), Masters et al.
patent: 3415902 (1968-12-01), Hickner et al.
patent: 3576906 (1971-04-01), Hickner et al.
patent: 3746692 (1973-07-01), Olstowski et al.
patent: 3784601 (1974-01-01), Jellinek et al.
patent: 3828005 (1974-08-01), Pittman

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