Light-sensitive recording material and process for the production of the material

Abstract From the Canadian patent

Disclosed is a light-sensitive recording material for use in the manufacture of planographic printing plates, which comprises in its light-sensitive layer, a condensation product comprising recurrent diazonium salt units and diazonium-group free units of compounds which are capable of condensation with an active carbonyl compound, and which especially include aromatic amines, phenols, phenol ethers aromatic, thioethers, aromatic hydrocarbons aromatic hetero-, cyclic compounds or organic acid amides and a binder, which includes a water-insoluble polymer which is soluble in aqueous-alkaline solutions. The recording material includes a covering layer on the lightsensitive layer which comprises …