Hydrolysis-stable monomers with acid groups

US7582686B2 · kind B2 · utility

Assignee

• HERAEUS KULZER GMBH · DE

Inventors

• Marcus Hoffmann · Usingen, DE
• Albert Erdrich · Bad Nauheim, DE

Key dates

• Filing date: Jan 10, 2006
• Grant date: Sep 1, 2009
• Expiry date: May 19, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C69/736
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Compounds of the formula IR1—O—CO—C(═CHR)—Y—O-Q(AH)n  (I)whereA stands for a —CO2— or —SO3— group which together with H+ yields AH,Q represents C1-12alkylene, C4-12alkylene interrupted by —O—, >N—, or —S—, or, in given cases, C6-15arylene substituted with C1-4alkyl, C1-4alkoxy or halogen, where in the case of arylene the aryl groups can carry additional acid groups A,Y stands for C1-12alkylene or C4-12alkylene interrupted by —O—, >N—, or —S—,R represents methyl or H,R1 is C1-6alkyl, andn assumes the values 1, 2, or 3are particularly suitable for the production of self-etching dental adhesives.