Process for production of vinyl film-cellulosic laminates and la

Details Process for production of vinyl film-cellulosic laminates and la Process for production of vinyl film-cellulosic laminates and la

1980-04-25

1981-10-20

Gallagher, John J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 90, 1563075, 156315, 156320, 156334, 427303, 427408, 4284244, 4284251, 428514, 428520, C09J 504

Patent

active

042959101

ABSTRACT:
A lamination process is provided for the lamination of a vinyl film to a cellulosic substrate, such as a wood product, e.g., particleboard, wherein grain swelling of the substrate is avoided. The process involves coating the wood product substrate with an organic polyisocyanate having at least two active isocyanate groups per molecule as a primer coat, and thereafter applying a vinyl acetate-ethylene copolymer emulsion adhesive to the primed substrate to form an interlaminate adhesive layer. A vinyl polymeric film is then applied to the adhesive-coated substrate to form a permanently bonded laminate of the substrate and the film. The lamination process of the present invention is particularly suitable for use in a continuous hot-line heat reactivated laminating procedure.

REFERENCES:
patent: 2384269 (1945-09-01), Bake
patent: 2430479 (1947-11-01), Pratt et al.
patent: 2728703 (1955-12-01), Kiernan et al.
patent: 2804400 (1957-08-01), Kelly et al.
patent: 3661696 (1972-05-01), Knutson
patent: 3725124 (1973-04-01), Gorton
patent: 4152313 (1979-05-01), Fogle et al.

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