Imageable colloidal metal/mercaptan elements

Details Imageable colloidal metal/mercaptan elements Imageable colloidal metal/mercaptan elements

1984-07-27

1986-04-01

Louie, Won H.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430275, 430277, 430321, 430495, 430524, 430 4, 430269, 430430, 430428, 430279, G03C 524

Patent

active

045798087

ABSTRACT:
Photosensitive element for forming a lithographic negative which comprises a support bearing a dry photosensitive layer consisting essentially of an intimate mixture of colloidal metal particles, e.g., silver, etc., colloid binder, free radical producing compound, and mercaptan compound, e.g., 2-mercaptobenzoxazole. A two layer photosensitive element embodiment comprises on a support a lower dry colloidal layer having dispersed colloidal metal particles and an upper dry layer consisting essentially of free-radical producing compound and a mercaptan compound. The elements are exposed imagewise, bleached, rinsed, and optionally fixed.

REFERENCES:
patent: 4029509 (1977-06-01), Blake
patent: 4047956 (1977-09-01), Blake
patent: 4052211 (1977-10-01), Inoue et al.
patent: 4188214 (1980-02-01), Kido et al.
patent: 4271256 (1981-06-01), Kido et al.

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