Aminoplast/polyurethane wear layer for PVC support surface

Details Aminoplast/polyurethane wear layer for PVC support surface Aminoplast/polyurethane wear layer for PVC support surface

1994-09-15

1997-07-01

Nakarani, D. S.

Stock material or miscellaneous articles

Composite

Of polyamidoester

428413, 428502, 4289088, B32B 2730, B32B 2738, B32B 2740, B32B 2742

Patent

active

056436777

ABSTRACT:
A resilient surface covering has a wear layer including a crosslinked aminoplast/polyurethane which is directly adhered to a vinyl support surface. The adhesion between the wear layer and support surface is improved by including at least 20% polyurethane by weight based on the total amount of aminoplast, polyurethane and epoxy resin in the wear layer composition, or by applying the wear layer composition to a gelled, but unfused vinyl support surface by fusing the vinyl support surface and curing the wear layer in a single step.

REFERENCES:
patent: 4017556 (1977-04-01), Wang
patent: 4059709 (1977-11-01), Conger et al.
patent: 4119762 (1978-10-01), Anderson et al.
patent: 4197392 (1980-04-01), Moore
patent: 4278578 (1981-07-01), Carpenter
patent: 4404248 (1983-09-01), Spinelli et al.
patent: 4425466 (1984-01-01), Santer et al.
patent: 4528344 (1985-07-01), Chang
patent: 4781987 (1988-11-01), Bolgiano et al.
Albert S. Tyskwicz "Innovative Room Temperature Thermosetting Water-Borne Urethane Polymer Systems" Feb. 1987.

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