Open-pored moldings, a process for their production and use thereof

US5147904A · kind A · utility

Assignee

• Thera Patent GmbH & Co. KG · DE

Inventors

• Peter Jochum · Meiningen, AT
• Oswald Gasser · Hanerau-Hademarschen, DE
• Manfred Holupirek · Fürstenfeldbruck, DE
• Erich Wanek · Kaufering, DE
• Rainer Guggenberger · Hanerau-Hademarschen, DE
• Klaus-Peter Stefan · Hanerau-Hademarschen, DE
• Klaus Ellrich · Herrsching am Ammersee, DE

Key dates

• Filing date: Aug 22, 1990
• Grant date: Sep 15, 1992
• Expiry date: Aug 22, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2111/00836
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Open-pored moldings containing the product of the foaming and setting of (a) an aluminum fluorosilicate glass, (b) at least one polycarboxylic acid with an average molecular weight of >500, (c) a foaming agent, other than carbonates and/or hydrogen-carbonates, (d) optionally a chelating agent and (e) water, are suitable in particular as bone substitute material. Production is carried out by homogeneously mixing (a), (b), (c), optionally (d), and (e), then foaming, shaping and setting.