Mixture of raw materials with improved processing properties, a process for their preparation and their use

US5134100A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Bernhard Freudenberg · Coburg, DE
• Peter Thometzek · Bensberg, DE

Key dates

• Filing date: Apr 26, 1990
• Grant date: Jul 28, 1992
• Expiry date: Apr 26, 2010

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2991
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A ceramic raw material mixture with improved processing properties comprising at least two chemically different raw material components, wherein at least two of the raw material components have the same type of cation on the surface thereof, at least one of the raw material components being coated with said type of cation and the coating, calculated as cation oxide, amounting to 0.01 to 6% by weight, based on the coated component, and all the raw material components having a surface with an isoelectric point of .ltoreq.pH 7.