Hydroxy group containing diesters of acrylic acid

US4002669A · kind A · utility

Assignee

• KULZER GMBH · DE

Inventors

• Albert Gross
• Roland Schaefer · Friedrichsdorf, DE

Key dates

• Filing date: Jan 27, 1975
• Grant date: Jan 11, 1977
• Expiry date: Jan 27, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2603/68
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Polymerizable hydroxy-group-containing diesters of acrylic acids for dental material are prepared by reacting 3-(3,4-epoxycyclohexyl)-8,9-epoxy-2,4-dioxaspiro(5,5) undecane or a bis-epoxide of formula (A) ##STR1## or a bis-epoxide of formula (B) ##STR2## with a hydroxyalkylacrylate or hydroxyalkylmethacrylate containing 2 to 10 carbon atoms in the alkyl portion, n being 0 or 1 in formula (A) with the proviso that when PA1 n is 0, PA2 X is --0-- and PA2 R.sup.1 is --H; and when PA1 n is 1, PA2 X is selected from the group of alkylene with 1 to 10 carbon atoms, C.sub.1-3 -alkyl substituted alkylene with 1 to 10 carbon atoms, --O--(CH.sub.2).sub.m --O-- where m is 1 to 10, --CH.sub.2 --OCO--(CH.sub.2).sub.p --COO--CH.sub.2 where p is 1 to 6, and --CH.sub.2 --OCO--, and PA2 R.sup.1 is --H or --CH.sub.3, and in formula (B) ##STR3## or tricyclo-[5.2.1.0.sup.2,6 ]-decylene.