Polyurethane compositions

Details Polyurethane compositions Polyurethane compositions

1986-10-10

1987-11-03

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...

528 73, 528 83, C08G 1842

Patent

active

047044454

ABSTRACT:
Novel polyurethane compositions having excellent bond strength, thermal resistance and resistance to hot water are provided by a polymeric polyol and an organic polyisocyanate at a hydroxyl group/isocyanate group equivalent ratio (NCO/OH) of 1 to 10, wherein said polymeric polyol is a polyurethane polyol prepared from a polyester polyol and an organic diisocyanate, said polyurethane polyol having a number average molecular weight of 3,000 to 50,000, said polyester polyol being composed of the following structural unit

REFERENCES:
patent: 4483970 (1984-11-01), Huntjens et al.

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