Compositions for preparing elastomeric urethane/urea block copol

Details Compositions for preparing elastomeric urethane/urea block copol Compositions for preparing elastomeric urethane/urea block copol

1978-06-05

1979-08-28

Welsh, Maurice J.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

528 60, C08G 1832

Patent

active

041660420

ABSTRACT:
The curing time for articles prepared by reacting an isocyanate-terminated prepolymer with an aromatic diamine to form an elastomeric urethane/urea copolymer is significantly decreased using a tris(2,4,6-aminophenylthiomethyl)1,3,5-trihydrocarbyl substituted benzene as the crosslinking agent.

REFERENCES:
patent: 3817940 (1974-06-01), Blahak et al.
patent: 3920617 (1975-11-01), Hirosawa et al.
patent: 3940371 (1976-02-01), Case

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