High pressure laminate structure

Details High pressure laminate structure High pressure laminate structure

1992-07-21

1995-06-20

Sluby, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428288, 428290, 428297, 4283124, 428323, 428530, 428531, 428525, 1563074, B32B 516, B32B 2708, B32B 3112

Patent

active

054259860

ABSTRACT:
This invention is directed to a high pressure process for preparing a laminate structure comprised of a fiber cementboard core having laminated to at least one surface thereof at least one intermediate resin impregnated paper sheet or lamina and a decorative resin impregnated paper sheet or lamina. The process comprises forming an assembly comprised of a fiber cementboard core having superimposed on at least one surface thereof at least one intermediate resin impregnated paper sheet and a decorative resin impregnated paper sheet, and subjecting said assembly to a temperature of at least about 100.degree. C. and a pressure of at least about 500 psi for a time effective to laminate said assembly.

REFERENCES:
patent: 3548559 (1970-12-01), Levine
patent: 4505974 (1985-03-01), Hosler
patent: 4625491 (1986-12-01), Gibson
patent: 4636443 (1987-01-01), Jaisle et al.
patent: 4645717 (1987-02-01), Berbeco
patent: 4657798 (1987-04-01), Guilhem
patent: 4689102 (1987-08-01), Prawdzik et al.
patent: 4789604 (1988-12-01), van den Hoeoen
patent: 4880689 (1989-11-01), Park et al.
patent: 5047282 (1991-09-01), Mier

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