Composite polymeric film and method for its use in installing a

Details Composite polymeric film and method for its use in installing a Composite polymeric film and method for its use in installing a

1982-04-26

1984-05-15

Lesmes, George F.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156230, 156655, 156668, 428213, 428501, 428503, 428507, 428508, 428515, 428520, 428524, 428526, 428534, 428914, B32B 3100, B32B 2742

Patent

active

044486227

ABSTRACT:
A composite polymeric film and a method for its use in forming and installing a very thin (<10 .mu.m) polymeric film are disclosed. The composite film consists of a thin film layer and a backing layer. The backing layer is soluble in a solvent in which the thin film layer is not soluble. In accordance with the method, the composite film is installed in a device in the same position in which it is sought to finally emplace the thin film. The backing layer is then selectively dissolved in the solvent to leave the insoluble thin film layer as an unbacked film. The method permits a very thin film to be successfully installed in devices where the fragility of the film would preclude handling and installation by conventional methods.

REFERENCES:
patent: 3484409 (1969-12-01), Ashikaga et al.
patent: 3505264 (1970-04-01), Thoese et al.
patent: 3859125 (1975-01-01), Miller et al.
patent: 4119604 (1978-10-01), Wysong
patent: 4372311 (1983-02-01), Potts
patent: 4379805 (1983-04-01), Downing et al.

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