Photosensitive laminate having dual intermediate layers

Details Photosensitive laminate having dual intermediate layers Photosensitive laminate having dual intermediate layers

1992-04-07

1993-12-14

RoDee, Christopher

Radiation imagery chemistry: process, composition, or product th

Stripping process or element

Element

430271, 430273, G03C 1805

Patent

active

052701468

ABSTRACT:
In a dry film laminate useful in the printed circuit industry comprising a support sheet, a photoimageable composition layer and a protective sheet, a dual intermediate layer is interposed between the photoimageable composition layer and the support sheet. The intermediate layer consists of a water-soluble tie coat in contact with the photoimageable composition layer and a top coat in contact with the support sheet, the top coat being insoluble in neutral or acidic aqueous solution but soluble in dilute alkaline aqueous solution.

REFERENCES:
patent: 4239849 (1980-12-01), Lipson et al.
patent: 4318957 (1982-03-01), Kuznetsuv et al.
patent: 4530896 (1985-07-01), Christensen et al.
patent: 4789620 (1988-12-01), Sasaki et al.
patent: 4889790 (1989-12-01), Roos et al.
patent: 4987048 (1991-01-01), Shinozaki et al.
patent: 4992354 (1991-02-01), Ayon et al.

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