Method of forming a contoured laminate

Details Method of forming a contoured laminate Method of forming a contoured laminate

1975-11-13

1977-10-04

Van Horn, Charles E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156285, 264 92, 264278, 296137A, 427207R, B29C 1704

Patent

active

040522415

ABSTRACT:
A method of bonding a flexible superstrate, such as a flexible finish sheet, to a contoured substrate, such as a contoured fiberboard, particularly in mass production. The disclosed method includes supporting the contoured substrate in a downwardly facing cavity of a female die. The substrate may be coated with adhesive before receipt in the die cavity. A flexible superstrate is then positioned beneath the die cavity on a flexible sealing sheet. The die is then closed and a vacuum is drawn through the die cavity and contoured substrate to draw the sealing sheet into the die cavity. The flexible superstrate or finish sheet is thus drawn in face-to-face contact with the contoured face of the substrate, bonding the finish sheet to the substrate.

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patent: 3554834 (1971-01-01), Bennett et al.
patent: 3556315 (1971-01-01), Berger
patent: 3589967 (1971-06-01), Shirakawa
patent: 3654012 (1902-04-01), Schlager
patent: 3654019 (1972-04-01), Cusick
patent: 3657044 (1972-04-01), Singer

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