Light-sensitive copying composition containing the...

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G - Physics

03

C

96/167, 96/6

G03C 5/00 (2006.01) G03C 1/52 (2006.01) G03F 7/02 (1980.01)

Patent

CA 1097122

K-2506 LIGHT-SENSITIVE COPYING COMPOSITION Abstract of the Disclosure This invention relates to an improvement in a negative-working light-sensitive copying composition comprising at least one condensa- tion 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 improvement that the water-soluble synthetic polymer is a copolymer of a C3 to C16 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.

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