Polyurethane from a copolyether of tetrahydrofuran and 3-alkyl t

Details Polyurethane from a copolyether of tetrahydrofuran and 3-alkyl t Polyurethane from a copolyether of tetrahydrofuran and 3-alkyl t

1988-03-24

1990-10-02

Kight, III, John

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 61, 528 65, 528 73, C08G 1832

Patent

active

049608495

ABSTRACT:
A polyurethane resin composition without handling trouble is obtained by a combination of a copolyether polyol obtained by copolymerization of tetrahydrofuran and a 3-alkyl tetrahydrofuran at a mixing molar ratio of 85/15-20/80, a polyisocyanate compound and an active hydrogen atom-containing compound. The 3-alkyl tetrahydrofuran is preferably 3-methyl tetrahydrofuran.

REFERENCES:
patent: 3358042 (1967-12-01), Dunlap et al.
patent: 3726905 (1971-07-01), Coates et al.
patent: 3859369 (1975-01-01), Copelin
patent: 4120850 (1978-10-01), Pechhold
patent: 4194035 (1980-03-01), Dieterich
patent: 4590285 (1986-05-01), Ernst
patent: 4739027 (1988-04-01), Mendelsohn et al.

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