Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...
Patent
1977-11-16
1979-12-18
Kelley, Mary F.
Radiation imagery chemistry: process, composition, or product th
Diazo reproduction, process, composition, or product
Composition or product which contains radiation sensitive...
430302, 430310, G03F 702, G03C 500, G03C 194, G03C 152
Patent
active
041792920
ABSTRACT:
This invention relates to an improvement in a negative-working light-sensitive copying composition comprising at least one condensation product of a diazonium salt, at least one water-soluble synthetic polymer and at least one acrylic resin which is soluble or at least swellable in an aqueous alkaline solution, the immprovement that the water-soluble synthetic polymer is a copolymer of a C.sub.3 to C.sub.16 alkyl acrylate and an N-vinyl-N-alkyl carboxylic acid amide, the alkyl and carboxylic acid groups of which contain 1 to 6 carbon atoms each. The invention also relates to a process for the preparation of a planographic printing foil using the novel light-sensitive composition.
REFERENCES:
patent: 3715210 (1973-02-01), Watkinson et al.
patent: 3751257 (1973-08-01), Dahlman
patent: 3790382 (1974-02-01), Dahlman
patent: 3817850 (1974-06-01), Feinberg
patent: 3840390 (1974-10-01), Kozu et al.
patent: 3849392 (1974-11-01), Steppan
patent: 3997344 (1976-12-01), Schlesinger
Klupfel Kurt-Walter
Sprengel Heide
Bryan James E.
Hoechst Aktiengesellschaft
Kelley Mary F.
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