Method for joining a metal foil with a foil of a synthetic mater

Details Method for joining a metal foil with a foil of a synthetic mater Method for joining a metal foil with a foil of a synthetic mater

1997-04-29

1999-09-14

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156269, 1562726, 1562757, 156324, 156544, 433 39, B32B 3108

Patent

active

059518014

ABSTRACT:
The method for joining a metal foil with a synthetic material foil comprises unwinding both materials from a supply roll each, and subjecting the synthetics foil, prior to the application of an adhesive, to a corona discharge on a narrow border region. The metal foil and the synthetic material foil are then pressed together and irradiated by ultraviolet radiation causing polymerization of the adhesive. The composite foil material thus obtained is transferred to a further processing station. There the dental matrix can be punched out of such a composite sheet material, having a high tensile strength, whose metal portion can easily be inserted between two adjacent teeth whereas the transparent synthetic material part allows light curing of the dental filling material.

REFERENCES:
patent: 1410879 (1922-03-01), Bither
patent: 3660190 (1972-05-01), Stroszynski
patent: 3776798 (1973-12-01), Milano
patent: 4119479 (1978-10-01), Williams et al.
patent: 4496417 (1985-01-01), Haake et al.
patent: 4523909 (1985-06-01), Lazarus
patent: 5330353 (1994-07-01), Wavrin
patent: 5393818 (1995-02-01), Masse et al.
Database WPI, Section Ch, Week 8035, Derwent Publications Ltd., London, GB; Class A32, AN80-61592C XP002021462 & JP 55 095 565 A (Matsushita Elec Works), Jul. 20, 1980, Zusammenfassung.

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