Photoinitiator blends

US6103453A · kind A · utility

Assignee

• BASF SE

Inventors

• Bernhard Prantl · Worms, DE
• Erich Beck · Ladenburg, DE
• Matthias Lokai · Enkenbach-Alsenborn, DE
• Christof Kandzia · Monsheim, DE

Key dates

• Filing date: Mar 17, 1999
• Grant date: Aug 15, 2000
• Expiry date: Mar 17, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S522/908
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A photoinitiator blend, containing a) at least one monoacylphosphine oxide of formula I ##STR1## in which R.sup.1 denotes C.sub.1 -C.sub.18 alkyl; C.sub.1 -C.sub.4 alkyl, C.sub.5 -C.sub.8 cycloalkyl, C.sub.7 -C.sub.9 phenylalkyl, phenyl, naphthyl, biphenyl, all substituted by halogen or C.sub.1 -C.sub.6 alkoxy; phenyl, naphthyl or biphenylyl, all mono- or poly-substituted by halogen, C.sub.1 -C.sub.12 alkyl and/or C.sub.1 -C.sub.12 alkoxy; or a monovalent N--, O--, or S--containing 5-membered or 6-membered heterocyclic radical, PA1 R.sup.2 denotes phenyl, naphthyl, biphenylyl; phenyl, naphthyl or biphenylyl, all mono- or poly-substituted by halogen, C.sub.1 -C.sub.12 alkyl and/or C.sub.1 -C.sub.12 alkoxy; a monovalent N--, O--, or S--containing 5-membered or 6-membered heterocyclic radical, C.sub.1 -C.sub.18 alkoxy, phenoxy; phenoxy substituted by halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy; benzyloxy, cyclohexyloxy or R.sup.2 and R.sup.1 form a ring together with the phosphorus atom, PA1 R.sup.3 denotes C.sub.1 -C.sub.18 alkyl; C.sub.1 -C.sub.4 alkyl, C.sub.5 -C.sub.8 cycloalkyl, C.sub.7 -C.sub.9 phenylalkyl, phenyl, naphthyl, biphenylyl, all substituted by halogen …