Method for making patterned thin film

Details Method for making patterned thin film Method for making patterned thin film

1989-04-26

1991-10-22

Lawrence, Evan

Coating processes

Nonuniform coating

Applying superposed diverse coatings or coating a coated base

427 57, 427264, B05D 312, B05D 500

Patent

active

050594540

ABSTRACT:
Method for providing a patterned thin film on a flexible web-like substrate having at least one surface. A patterned release coating which carries the desired pattern is deposited on the surface and has openings therein through which the surface of the substrate is exposed. A thin film is deposited over the patterned release coat and onto the portions of the surface exposed through the openings. The patterned release coating is then removed mechanically along with the thin film portions carried thereby to provide a patterned thin film on the substrate. The mechanical removal may be accomplished by advancing the coated substrate through a solvent while brushing the substrate, subjecting the substrate to high velocity air, or contacting the substrate with the adhesive layer of a web.

REFERENCES:
patent: 3935334 (1976-01-01), Narui et al.
patent: 4040891 (1977-08-01), Chang et al.
patent: 4448636 (1984-05-01), Baber
patent: 4643912 (1987-02-01), Nakagawa et al.
patent: 4663192 (1987-05-01), Hatakeyawa et al.

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