Process for the production of lithographic printing forms...

Details Process for the production of lithographic printing forms... Process for the production of lithographic printing forms...

G - Physics

03

F

96/2, 96/266

G03F 7/021 (2006.01)

Patent

CA 1172492

Hoe 81/K 045 Abstract of the Disclosure According to the process of this invention, it is possible to produce negative-working, heavy-duty lithographic printing forms which comprise, as the binder, a styrene-maleic acid de- rivative copolymer which is soluble in aqueous alkaline solutions. The light-sensitive component is a polycondensation product of units of an aromatic diazonium salt which is capable of conden- sation and other units which are not light-sensitive and are derived from compounds which are capable of condensation, for example, aromatic amines, phenols, thiophenols, phenol ethers, aromatic thioethers, aromatic hydrocarbons, aromatic heterocycles and organic acid amides. After exposure in image configuration, these printing forms can be further processed with purely aqueous- alkaline solutions.

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