Bismuth catalyst system for preparing polyurethane elastomers

Details Bismuth catalyst system for preparing polyurethane elastomers Bismuth catalyst system for preparing polyurethane elastomers

1985-02-27

1986-04-22

Cockeram, Herbert S.

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...

521123, 521124, C08G 1814, C08G 1822

Patent

active

045843627

ABSTRACT:
Processes are provided for preparing polyurethane elastomers by reacting a polyether or polyester polyol with a polyisocyanate in the presence of a catalytic amount of a bismuth salt of a carboxylic acid having from 2 to 20 carbon atoms. The catalysts of these processes are relatively non-toxic, yet they promote rapid polymerization for a wide variety of polyurethane elastomeric applications.

REFERENCES:
patent: 3203932 (1965-08-01), Frisch et al.
patent: 3245957 (1966-04-01), Henderman et al.
patent: 3714077 (1973-01-01), Cobbledick et al.
patent: 3799898 (1974-03-01), Lamplugh et al.
patent: 4284751 (1981-08-01), Hutt et al.
patent: 4468478 (1984-08-01), Dexheimer et al.

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