Radiation-curable acrylates with built-in photoinitiators

US5741829A · kind A · utility

Assignee

• BASF SE

Inventors

• Wolfgang Reich · Frankenthal (Pfalz), DE
• Erich Beck · Ladenburg, DE
• Ulrich Jager · Lichtenfels, DE
• Reinhold Schwalm · Monsheim, DE

Key dates

• Filing date: Jul 3, 1996
• Grant date: Apr 21, 1998
• Expiry date: Jul 3, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S522/905
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Radiation-curable (meth)acrylates obtainable by reacting compounds of the formula ##STR1## in which R is C.sub.1 -C.sub.4 -alkyl, aryl or R.sup.1 and R.sup.1 is ##STR2## in which R.sup.2 to R.sup.6 independently of one another are H, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, OH, phenyl, SH, SCH.sub.3, SC.sub.2 H.sub.5, F, Cl, Br, CN, COOH, COO--(C.sub.1 -C.sub.17 -alkyl), COO--(C.sub.5 -C.sub.10 -aryl), CF.sub.3, N(alkyl).sub.2, N(alkyl)(aryl), N(aryl).sub.2, N.sup..sym. (alkyl).sub.3 A.sup..crclbar., N.sup..sym. H(alkyl).sub.2 A.sup..crclbar., A.sup..crclbar. is the anion of an acid, and alkyl or aryl, unless indicated otherwise, is C.sub.1 -C.sub.10 -alkyl or C.sub.5 -C.sub.10 -aryl, respectively, and at least one but not more than 3 of R.sup.2 to R.sup.6 are ##STR3## with hydroxy(meth)acrylates containing at least 1 free hydroxyl group and at least 2 (meth)acrylic groups in the molecule.