Radiation-sensitive composition containing esterification product of (1,2-naphthoquinone-2-diazide)-sulfonic acid with 2,3,4,4'-tetrahydroxybenzophenone and a di- or tri-hydroxybenzophenone

US5358823A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Wolfgang Zahn
• Hans-Joachim Merrem · Walldorf, DE
• Fritz Erdmann · Eltville am Rhein, DE
• Axel Schmitt · Munich, DE

Key dates

• Filing date: Apr 1, 1992
• Grant date: Oct 25, 1994
• Expiry date: Apr 1, 2012

Classification

• Technology area (CPC G): Physics
• CPC primary: G03F7/022
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A radiation-sensitive composition is disclosed comprising a polymeric binder which is insoluble in water, but soluble or at least swellable in aqueous alkaline solution and a 2,3,4,4'-tetrahydroxybenzophenone which is partially esterified with (1,2-naphthoquinone 2-diazide)-4- and/or -5-sulfonic acid, which additionally contains either a dihydroxybenzophenone which is completely esterified with (1,2-naphthoquinone 2-diazide)-4- and/or -5-sulfonic acid or a trihydroxybenzophenone which is partially or completely esterified with (1,2-naphthoquinone 2-diazide)-4- and/or -5-sulfonic acid. The weight ratio of esterified 2,3,4,4'-tetrahydroxybenzophenone to esterified di- or trihydroxybenzophenone varies between about 4:6 and 7:3 and the esterified hydroxybenzophenones, as a whole, are present in a proportion of 5 to 40% by weight, based on the total weight of solids contained in the composition. Also disclosed is a radiation-sensitive recording material comprising a support and a layer containing this composition, which is present on the support.