Water-based vacuum forming laminating adhesive

Details Water-based vacuum forming laminating adhesive Water-based vacuum forming laminating adhesive

1991-07-11

1995-07-04

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524591, 524840, 528 53, C08J 300, C08K 320, C08L 7500

Patent

active

054300940

ABSTRACT:
A water-based vacuum forming laminating adhesive is disclosed. The adhesive includes a vinyl acetate polymer, an ionic water-dispersed polyurethane, and an aziridine. The composition is also substantially free of potentiometrically titratable acid. Also disclosed is a process for adhering a thermoplastic material to a rigid substrate. This process includes applying the above-described adhesive composition to the substrate, drying the composition, heating the thermoplastic material, contacting the thermoplastic material to the dry composition, and applying a vacuum to the thermoplastic material and the substrate for at least about; 10 seconds so as to adhere the thermoplastic material to the substrate. The composition of the present invention is particularly stable and can be used as a one component adhesive for up to 90 days.

REFERENCES:
patent: 4013480 (1977-03-01), Chumbley et al.
patent: 4762880 (1988-08-01), Leung
patent: 4853061 (1989-08-01), Leung
patent: 4992507 (1991-02-01), Coogan et al.

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