Photopolymerizable dental compositions

US4437836A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Robert Schmitz-Josten · Cologne, DE
• Carlhans Suling · Odenthal, DE
• Wolfgang Podszun · Neunburg vorm Wald, DE
• Bruno Bomer · Bensberg, DE
• Manfred Borgardt · Wuppertal, DE
• Michael Walkowiak · Leverkusen, DE

Key dates

• Filing date: Sep 1, 1982
• Grant date: Mar 20, 1984
• Expiry date: Sep 1, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/12
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

In a photopolymerizable composition comprising PA0 (a) at least one ethylenically unsaturated photopolymerizable monomer. PA0 (b) at least one photoinitiator selected from organic mono- and/or di-carbonyl compounds and PA0 (c) a photoactivator, the improvement which comprises employing as said photoactivator at least one alkylaminoarylsulphonyl compound of the formula ##STR1## in which R.sub.1 and R.sub.2 each independently is a hydrogen atom or an alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl, aralkyl or alkaryl group which has 1 to 11 carbon atoms and is optionally substituted by at least one hydroxyl, amino, epoxy, urethane, urea, ether of ether group, or R.sub.1 and R.sub.2 together form a 3- to 6-membered ring, which optionally contains nitrogen, oxygen or sulphur as a hetero-atom, PA0 R.sub.3 independently of R.sub.1, has any of the meanings given for R.sub.1 or is a group of the formula ##STR2## R.sub.4 and R.sub.5 each independently is a hydrogen atom, an alkyl or alkenyl group which has 1 to 10 carbon atoms and is optionally substituted by halogen, or a halogen atom, or PA0 R.sub.4 and R.sub.5 are in ortho-positions relative to one another and, together with the aromatic …