Polyurethane elastomers from hindered aliphatic diisocyanates

Details Polyurethane elastomers from hindered aliphatic diisocyanates Polyurethane elastomers from hindered aliphatic diisocyanates

1982-12-17

1983-12-13

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...

252182, 252431C, 502170, C08G 1832

Patent

active

044206003

ABSTRACT:
A curvature composition for curing polyurethane prepolymers prepared from hindered aliphatic diisocyanates, comprising (a) a C.sub.2 -C.sub.10 diol, (b) a C.sub.3 -C.sub.10 aminodiol and (c) a catalytically effective amount of a curing catalyst, and containing 50-99 equivalents of hydroxyl from the diol (a) and 1-50 equivalents of hydroxyl and amino groups from the aminodiol (b) per 100 equivalents of isocyanate groups of the polyurethane prepolymer.

REFERENCES:
patent: 2723265 (1955-11-01), Stallmann
patent: 3290350 (1966-12-01), Hoover
patent: 3823118 (1974-07-01), Matsunuga et al.

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