Photopolymerizable laminating material

US5114831A · kind A · utility

Assignee

• BASF SE

Inventors

• Friedrich Seitz · Friedelsheim, DE
• Gerhard Hoffmann · Otterstadt, DE
• Gerhard Bauer · Düsseldorf, DE

Key dates

• Filing date: Aug 2, 1990
• Grant date: May 19, 1992
• Expiry date: Aug 2, 2010

Classification

• Technology area (CPC G): Physics
• CPC primary: G03F7/085
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

These photopolymerizable laminating materials consist of at least one film-forming polymer as a binder, at least one organic compound which is compatible with the binder, has at least two double bonds capable of addition polymerization and may be partially replaced by an organic compound having only one double bond capable of addition polymerization, a photoinitiator or photoinitiator system and an adhesion promoter, with or without conventional additives and assistants, the adhesion promoter used being a tricyclic heteroaromatic compound which is soluble in aqueous alkaline solutions. The said laminating materials are suitable for the production of printed circuits.