One-component polyurethane type adhesive, and use thereof

Details One-component polyurethane type adhesive, and use thereof One-component polyurethane type adhesive, and use thereof

1993-08-19

1995-04-25

Kight, III, John

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 45, 528 67, 528905, G08G 1879

Patent

active

054100119

ABSTRACT:
A one-component type polyurethane adhesive: comprising, as a main component, a polyurethane precursor prepared by reaction of a polyisocyanate component (a) containing one or more polyisocyanate compounds (a-1) mention below and optionally one or more polyisocyanates (a-2) mention below with an active hydrogen compound (b) having a molecular weight of from 18 to 20,000 and having two or more active hydrogen groups in the molecule, at an equivalent ratio of the active hydrogen group of the active hydrogen compound component (b) to the isocyanate group of the polyisocyanate component (a) of more than 1.0; the polyurethane precursor containing a uretdione group and the active hydrogen group at an equivalent ratio of the uretdione group to the active hydrogen groups of from 0.25 to 1.0,
(a-1): a polyisocyanate compound having at least a uretdione group in the molecule thereof, and
(a-2): a polyisocyanate having two or more isocyanate groups in the molecule thereof.

REFERENCES:
patent: 4044171 (1977-08-01), Muller et al.
patent: 4430474 (1984-02-01), Schnurbusch et al.
patent: 4442280 (1984-04-01), Grogler et al.
patent: 4463154 (1984-07-01), Disteldorf et al.
patent: 4520186 (1985-05-01), Hess et al.
patent: 4801663 (1989-01-01), Ueyanagi et al.
patent: 5143994 (1992-09-01), Laas et al.

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