Adhesive, bonding method employing same, and product produced th

Details Adhesive, bonding method employing same, and product produced th Adhesive, bonding method employing same, and product produced th

1987-07-29

1988-11-01

Gallagher, John J.

Stock material or miscellaneous articles

Composite

Of polyamidoester

1563317, 524315, 528 54, 528 67, B32B 2700, C09J 314

Patent

active

047819863

ABSTRACT:
Disclosed is a method of making an adhesive comprising forming a first composition of a polyesterether glycol having the general formula ##STR1## where R.sub.1 and R.sub.2 are each independently selected from alkylidene from C.sub.1 to C.sub.10, and n is about 1 to about 5 about 0.01 to about 1% by weight (based on the weight of the polyesterether glycol) of a catalyst, and sufficient solvent for said adhesive to have at least 50% solids, forming a second composition of about 0.85 to about 0.95 mole % of a diisocyanate and about 0.15 to about 0.05 mole % of a polyisocyanate, and mixing the first and second compositions together. The adhesive is applied to a first substrate, the solvent is evaporated, and a second substrate is pressed against the adhesive on the first substrate to form a flexible laminate.

REFERENCES:
patent: 3487050 (1969-12-01), Castro et al.
patent: 3490987 (1970-01-01), Bauriedel
patent: 3706710 (1972-12-01), Camilleri et al.

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