Electrophotographic recording material
AssigneeHoechst Aktiengesellschaft
InventorKarl-Friedrich Doessel
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Abstract
An electrophotographic recording material is described for preparing a printing form or a printed circuit, comprising a layer support and a photoconductive layer comprised of photoconductor, sensitizer and/or activator, if appropriate further additives which improve surface texture and/or adhesion and a high molecular weight binder which is soluble in an alkaline aqueous or alcoholic solution and the photoconductive layer of which recording material contains as binder the product of reacting a sulfonyl isocyanate of the general formula R--SO.sub.2 --NCO in which R is alkenyl having up to 4 carbon atoms or phenyl which can be substituted by alkyl having up to 3 carbon atoms, with a hydroxyl-containing polymer in a molar ratio within the range of (0.5 to 1):1.
Claims9
An electrophotographic recording material for preparing a printing form or a printed circuit, comprising a layer support and a photoconductive layer comprising a photoconductor, a sensitizer, and/or an activator, wherein said photoconductive layer further comprises a high molecular weight binder which is soluble in an alkaline-aqueous or alcoholic solution,
- said binder comprising the product of reacting a sulfonyl isocyanate of the formula
- R--SO.sub.2 --NCO,
- in which R is alkenyl having up to 4 carbon atoms, or phenyl which can be substituted by alkyl having up to 3 carbon atoms, with a hydroxyl-containing polymer in a molar ratio within the range of (0.5 to 1):1.
Dependencies are inferred from the claim text.