Mixing liquid for silicate cements

US3986998A · kind A · utility

Assignee

• ESPE Fabrik Pharmazeutischer Praparate GmbH · DE

Inventors

• Werner Schmitt · Starnberg, DE
• Robert Purrmann · Starnberg, DE
• Peter Jochum · Meiningen, AT
• Wolf-Dieter Zahler · Hechendorf, DE
• Rainer Grimm-Lenz · Hanerau-Hademarschen, DE

Key dates

• Filing date: Oct 10, 1973
• Grant date: Oct 19, 1976
• Expiry date: Oct 10, 1993

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K3/34
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Dental cements are prepared by mixing a silicate powder with an aqueous solution of polymers of unsaturated alpha, beta-dicarboxylic acids.