Sealant composition comprising moisture curable isocyanurate con

Details Sealant composition comprising moisture curable isocyanurate con Sealant composition comprising moisture curable isocyanurate con

1991-06-13

1993-04-27

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 48, 528 49, 528 50, 528 51, 528 53, 528 54, 528 55, 528 56, 528 57, 528 58, 528 59, 528905, 525452, C08G 1818

Patent

active

052063313

ABSTRACT:
At least some of the isocyanate groups in the cured polyurethane sealant of this invention have the isocyanurate structure. A moisture-curing sealant composition of the invention comprises an active isocyanato-terminated isocyanate prepolymer containing a polyol component with a molecular weight of 2,000 to 20,000 and an isocyanurating agent. The sealant composition of the present invention is particularly excellent in initial bond strength due to sharp viscosity buildup.

REFERENCES:
patent: 3786030 (1974-01-01), Rice
patent: 4880845 (1989-11-01), Moss et al.

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