Light-sensitive polycondensation product containing diazonium and dialdehyde groups, and light-sensitive recording material prepared therewith

US4492748A · kind A · utility

Inventors

• Walter Lutz · Wertheim, DE
• Hartmut Steppan · Wiesbaden, DE
• Fritz Erdmann · Eltville am Rhein, DE

Key dates

• Filing date: Sep 8, 1982
• Grant date: Jan 8, 1985
• Expiry date: Sep 8, 2002

Classification

• Technology area (CPC G): Physics
• CPC primary: G03F7/021
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A light-sensitive diazonium group-containing polycondensation product of a diazonium salt corresponding to the general formula ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 denote hydrogen atoms, halogen atoms, alkyl groups having 1 to 3 carbon atoms or alkoxy groups having 1 to 6 carbon atoms, and PA0 X denotes the anion of the diazonium salt, and an aldehyde selected from the group consisting of dialdehydes, acetals of dialdehyde hydrates, and esters of dialdehyde hydrates, a process for producing such a light-sensitive polycondensation product and a light-sensitive recording material comprising a layer support and a light-sensitive layer containing such a light-sensitive polycondensation product.