Photosensitive crosslinkable 1-carbonyloxy-1H-naphthalene-2-one polymers and process for their preparation

US3985566A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Gerhard Buhr · Königstein, DE
• Hartmut Steppan · Wiesbaden, DE

Key dates

• Filing date: Feb 12, 1975
• Grant date: Oct 12, 1976
• Expiry date: Feb 12, 1995

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S522/904
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polymers capable of being cross-linked by light, which comprise units having lateral substituted 1-carbonyloxy-1H-naphthalene-2-one groups of the formula ##SPC1## Where R is hydrogen or methyl; R.sub.1 is a streight-chain or branched, saturated or unsaturated hydrocarbon radical having from 1 to 3 carbon atoms, in which a hydrogen atom may be substituted by cyano, (C.sub.1 to C.sub.2) alkoxy, carbo-(C.sub.1 to C.sub.2)-alkoxy, (C.sub.1 to C.sub.2)acyl or (C.sub.1 to C.sub.2)acyloxy and R.sub.2 and R.sub.3, independently, each are (C.sub.1 to C.sub.4)alkyl or chlorine; and R.sub.4 is (C.sub.1 to C.sub.4)alkyl, nitro, chlorine or bromine, are provided.