Salts of polyalkyl vinyl ether maleic anhydride and dental prosthesis adhesive produced therefrom

US5204414A · kind A · utility

Assignee

• Giulini Chemie GmbH · DE

Inventors

• Zvi Pelah · Savyon, IL
• Ernst Urmann · Ludwigshafen, DE
• Werner Kopp · Speyer, DE

Key dates

• Filing date: Jul 5, 1990
• Grant date: Apr 20, 1993
• Expiry date: Jul 5, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F8/44
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Salts of lower alkyl vinyl ether/maleic anhydride are described as active components in dental adhesives. A process for the preparation of these salts is described. The salts are partially neutralized mixed salts of lower alkyl vinyl ether/maleic anhydride copolymers. The neutralization of the copolymer is effected with aluminum, and calcium and/or sodium.