4-Quinazolone compounds

US4908448A · kind A · utility

Assignee

• BASF SE

Inventors

• Reinhard Aldag · Ludwigshafen, DE
• Peter Neumann · Wiesloch, DE
• Andreas Boettcher · Leimen, DE
• Thomas Bluemel · Erpolzheim, DE
• Friedrich Seitz · Friedelsheim, DE

Key dates

• Filing date: Aug 4, 1989
• Grant date: Mar 13, 1990
• Expiry date: Aug 4, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/121
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Novel photopolymerizable recording materials suitable in particular for producing photoresist layers and lithographic printing plates are composed of one or more photopolymerizable, olefinically unsaturated organic compounds, optionally a polymeric binder, a photopolymerization initiator, a color-forming system composed of a color former and a photooxidant, novel 4-quinazolone compounds as sensitizers and optionally further additive and/or auxiliary substances.