Light-sensitive recording material including a diazonium...

Details Light-sensitive recording material including a diazonium... Light-sensitive recording material including a diazonium...

G - Physics

03

C

96/161

G03C 5/18 (2006.01) G03F 7/021 (2006.01)

Patent

CA 1149216

Hoe 78/K 030 LlGHT-SENSITIVE RECORDING MATERIAL AND PROCESS FOR THE PREPARATION OF RELIEF-TYPE RECORDINGS Abstract of the Disclosure This invention relates to an improvement in a light-sensitive recording material comprising a support and a light-sensitive layer including a diazonium salt polycondensation product composed of recurrent units of the general types (A-N2X) and (B) which are connected with each other by bivalent intermediate members derived from a condensable carbonyl compound and wherein A is the radical of a diazonium salt which comprises at least two isocyclic or heterocyclic aromatic rings and which in at least one position of its molecule is capable of condensation with formaldehyde in an acid medium, B is the radical of a compound free of diazonium groups which in at least one position of its molecule is capable of condensation-with formaldehyde in an acid medium, and X is the anion of the diazonium salt, the improvement that the light-sensitive layer additionally contains about 6 to 20 parts by weight of amine resin per part by weight of the polycondensation product.

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