Reaction product, preparation thereof and radiation-sensitive material obtained therewith

US5176985A · kind A · utility

Assignee

• BASF SE

Inventors

• Friedrich Seitz · Friedelsheim, DE
• Erich Beck · Ladenburg, DE
• Joachim Roser · Dessel, BE
• Guenther Schulz · Bad Dürkheim, DE
• Eleonore Bueschges · Mannheim, DE
• Thomas Zwez · Karlsruhe, DE

Key dates

• Filing date: Aug 2, 1990
• Grant date: Jan 5, 1993
• Expiry date: Aug 2, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/671
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A reaction product useful for preparing radiation-sensitive materials, in particular materials whose solubility in water or aqueous alkali increases on irradiation, contains urea and urethane groups and also carboxyl groups and is obtained by reaction of PA1 i) an ethylenically monounsaturated or polyunsaturated mono- or polyalcohol with PA1 ii) a di- or polyisocyanate, PA1 iii) at least one amino compound and PA1 iv) at least one anhydride of an at least dibasic carboxylic acid, the number of NCO and anhydride groups in ii) and iv) being equal to or less than the number of groups in i) and iii) which are reactive therewith.