Method of coating substrate surfaces with LCST polymers

US6686046B2 · kind B2 · utility

Assignee

• Forschungsinstitut fur Pigmente und Lacke e.V. · DE

Inventors

• Thadeus Schauer · Calw, DE
• Marc Entenmann · Fellbach, DE
• Claus D. Eisenbach · Sindelfingen, DE

Key dates

• Filing date: Aug 15, 2002
• Grant date: Feb 3, 2004
• Expiry date: Aug 15, 2022

Classification

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

Abstract

In order to make it possible to treat particles in such a manner that they are stabilized as disperse particles in liquid media, such as varnishes, a method of coating particles with LCST polymers is proposed which is characterized by the following steps: a) dissolution of an LCST polymers in a solvent at a temperature below the LCST; b) mixing the solution obtained in step a) with the particles to be coated; and c) increasing the temperature of the mixture obtained in step b) to or beyond the point at which the LCST polymer deposits onto the particle surfaces.