Light-sensitive mixture and light-sensitive copying material pre

Details Light-sensitive mixture and light-sensitive copying material pre Light-sensitive mixture and light-sensitive copying material pre

1982-09-28

1984-07-03

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430189, 430192, 430193, 430270, 430292, 430343, 430344, 430280, G03C 160, G03C 154, G03C 1727

Patent

active

044580002

ABSTRACT:
Disclosed is a light-sensitive mixture comprising (a) a 1,2-quinonediazide or a mixture of (a.sup.1) a compound forming an acid on exposure and (a.sup.2) a compound having at least one C--O--C bond cleavable by acid; (b) a water-insoluble binder soluble in aqueous-alkaline solutions; (c) a photolytically cleavable organic halogen compound of one of the formulae ##STR1## in which R.sup.1 denotes an aromatic radical bonded directly or via a conjugated chain, and X denotes a halogen atom; and (d) an azo dyestuff containing at least one nitro group in the molecule. Also disclosed are light-sensitive copying materials produced from these mixtures.

REFERENCES:
patent: 3929488 (1975-12-01), Smith
patent: 3969118 (1976-07-01), Stahlhofen et al.
patent: 4160671 (1979-07-01), Stahlhofen
patent: 4163672 (1979-08-01), Stahlhofen
patent: 4189323 (1980-02-01), Buhr
patent: 4241166 (1980-12-01), Klupfel et al.
patent: 4247611 (1981-01-01), Sander et al.
patent: 4311782 (1982-01-01), Buhr et al.
patent: 4348471 (1982-09-01), Shelnut et al.
patent: 4387152 (1983-06-01), Stahlhofen

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