Polyelectrolyte cement

US6719834B1 · kind B1 · utility

Assignee

• 3M ESPE AG · DE

Inventors

• Peter Braun · Landsberg am Lech, DE
• Jürgen Glaser · Steinebach, DE
• Hermann Nirschl · Hanerau-Hademarschen, DE
• Klaus-Peter Stefan · Hanerau-Hademarschen, DE

Key dates

• Filing date: Sep 28, 2001
• Grant date: Apr 13, 2004
• Expiry date: Sep 28, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2998
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to a single-component or multiple-component polyelectrolyte cement containing at least two reaction partners:(a) at least one metal-cation-releasing compound and(b) one or more polyelectrolytes capable of being converted into a solid state, wherein at least one of the polyelectrolytes is at least partially water soluble, and wherein at least a part of the reaction partner (a) and/or (b) is coated with an organic surface-coating agent.In one preferred embodiment, at least one part of the formulation constituents of the cement is present in granulated form, wherein at least a part of the reaction partner (b) serves as an essential granulation agent. The polyelectrolyte cement is particularly stable in storage and can be easily mixed.