Method of laminating plastic resin sheets

Details Method of laminating plastic resin sheets Method of laminating plastic resin sheets

1988-03-14

1989-01-17

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1563082, 156219, 1565802, 156581, 264 23, B29C 2708

Patent

active

047986395

ABSTRACT:
In a method of laminating three or more thermoplastic resin sheets successively by sonic bonding, the pressure face of ultrasonic horn is provided with projections, and thereby the pressed surface of the thermoplastic resin sheet is provided with recesses and projections to the extent suitable for later sonic bonding. Accordingly, only one thermoplastic resin sheet having an embossed surface is needed, and both surfaces of the remaining thermoplastic resin sheets may be all flat. That is, when n sheets of thermoplastic resin sheet are laminated, heretofore, n-1 sheets of thermoplastic resin sheet need to have an embossed surface. Whereas, in the method of the invention, only one embossed thermoplastic resin sheet is sufficient so that the cost for embossing is much lowered, and thus the cost of manufacturing a laminate of thermoplastic resin sheets can be saved.

REFERENCES:
patent: 3499808 (1970-03-01), Obeda
patent: 3602257 (1971-08-01), Berleyoung
patent: 3635609 (1972-01-01), Balamuth
patent: 4169751 (1979-10-01), Yen
patent: 4230757 (1980-10-01), Toner
patent: 4572753 (1986-02-01), Bach
patent: 4618516 (1986-10-01), Sager

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