Thermoplastic polyurethanes prepared by reacting polyisocyanate,

Details Thermoplastic polyurethanes prepared by reacting polyisocyanate, Thermoplastic polyurethanes prepared by reacting polyisocyanate,

1981-08-27

1983-07-12

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 1830

Patent

active

043931863

ABSTRACT:
Novel polyurethanes especially suited for applications requiring initial heat resistance in a non-alcohol, non-exotic solvent system such as methyl ethyl ketone and having peel strengths of at least 5 pounds per linear inch (pli) uncrosslinked at about 180.degree. to about 200.degree. F., optionally containing crosslinkers, and which are typically used in the automobile industry, are described. The new polyurethanes are substantially free of reactive isocyanate and hydroxyl groups and comprise the reaction product of

REFERENCES:
patent: 2871218 (1959-01-01), Schollenberger
patent: 3357954 (1967-12-01), Kirkaldy
patent: 3931113 (1976-01-01), Seeger et al.
patent: 4049590 (1977-09-01), Falkenstein et al.
patent: 4098772 (1978-07-01), Bonk et al.

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