Curative for a two component isocyanate adhesive and said adhesi

Details Curative for a two component isocyanate adhesive and said adhesi Curative for a two component isocyanate adhesive and said adhesi

1981-11-16

1983-02-08

Cockeram, H. 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...

252182, 528 44, 528 76, 528 77, C08G 1832

Patent

active

043730825

ABSTRACT:
A curative for a two component isocyanate or polyurethane adhesive composed of a prepolymer component having about 3 to 15 percent free isocyanate, said curative comprising at least one polyol of about 400 to 6000 molecular weight and a polyamine with at least part of said polyol and said diamine being reacted with an organic polyisocyanate to form micelles that exhibit upon NMR examination strong urea peaks and weak urethane peaks. The curative is useful to make an adhesive that is particularly useful for adhering to metals and polyesters.

REFERENCES:
patent: 3663513 (1972-05-01), Kazama et al.
patent: 3666835 (1972-05-01), Schloss
patent: 3812003 (1974-05-01), Larson et al.
patent: 3935051 (1976-01-01), Bender et al.

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