Method for modifying the surface of finely divided particles by the application of organofunctional polysiloxanes

US5387467A · kind A · utility

Assignee

• Th. Goldschmidt. AG · DE

Inventors

• Werner Hohner · Velbert, DE
• Dietmar Schaefer · Hattingen, DE

Key dates

• Filing date: Dec 3, 1992
• Grant date: Feb 7, 1995
• Expiry date: Dec 3, 2012

Classification

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

Abstract

A method for modifying the surface of finely divided particles, such as pigments and filler or glass fiber, is described. The method utilizes organopolysiloxanes with ester groups and long-chain alkyl groups, which are linked over carbon atoms to silicon atoms.