Method of producing laminated sheets using laminated pouch suppo

Details Method of producing laminated sheets using laminated pouch suppo Method of producing laminated sheets using laminated pouch suppo

1977-09-26

1979-06-19

Goolkasian, John T.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

40 22, 156226, 156239, 156306, 156323, 156227, 156247, 156309, 206491, 283 7, 283 9R, 428 40, 428124, 428349, 428 76, 428202, B32B 3116

Patent

active

041585879

ABSTRACT:
A method and apparatus is disclosed for producing a laminated sheet wherein a thin film laminate is provided which is formed of a thin film laminating or substrate sheet with a heat reactivatible adhesive layer on one side thereof to produce a combined thickness of 11/2 to 3 mils. On the other side of the laminating or substrate sheet a paper carrier sheet is adhesively attached for stiffening the thin film laminating sheet. The thin film laminate or substrate is folded to form a pouch and the sheet to be laminated is placed therebetween. The pouch is then processed in an oven-type laminator to produce the laminated sheet with attached carrier sheet. Finally, the carrier sheet is stripped away to produce the final product. By use of an integral carrier sheet, the relatively thin film laminating sheets may be conveniently used in conventional oven laminators without the need for special supporting techniques.

REFERENCES:
patent: 2030135 (1936-02-01), Carpenter
patent: 2746893 (1956-05-01), Matthes
patent: 3257228 (1966-06-01), Reed
patent: 3401439 (1968-09-01), Staats et al.
patent: 3684635 (1972-08-01), Staats
patent: 3711355 (1973-01-01), Staats et al.
patent: 3836414 (1974-09-01), Staats
patent: 3943031 (1976-03-01), Krueger et al.

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