Process for coloring building materials

US5199986A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Bernd Krockert · Wesel, DE
• Gunter Linde · Krefeld, DE
• Manfred Eitel · Kempen, DE
• Kurt Schafer · Rübhausen, DE
• Klaus Rohbock · Kempen, DE

Key dates

• Filing date: Jan 27, 1992
• Grant date: Apr 6, 1993
• Expiry date: Jan 27, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Colored building materials are produced by incorporating into the building materials inorganic pigments in the form of granulates which are free-flowing and not dust forming wherein the pigments are produced from spray dried granulates by after-granulating.