Powder-coated domestic appliances with a top coat based on epoxy silane

US6537672B1 · kind B1 · utility

Assignees

• INSTITUT FUR NEUE MATERIALIEN gem. GmbH. · DE
• BSH Bosch und Siemens Hausgeräte GmbH · DE

Inventors

• Carola Dittfurth · Riegelsberg, DE
• Stefan Sepeur · Wadgassen, DE
• Ralf Winkler · Wittislingen, DE
• Helmut Schmidt · Riegelsberg, DE
• Frank Joerdens · Traunreut, DE
• Gerhard Schmidmayer · Bad Endorf, DE

Key dates

• Filing date: May 22, 2001
• Grant date: Mar 25, 2003
• Expiry date: May 22, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31663
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to domestic appliances bearing on a powder-coated surface a scratch-resistant and abrasion-resistant topcoat of a coating material which comprises:a) condensates based on hydrolysable silanes containing at least one non-hydrolysable substituent, the hydrolysable silanes having an epoxide group on at least one non-hydrolysable substituent;b) a curing catalyst selected from Lewis bases and alkoxides of titanium, zirconium or aluminium;c) nanoscale particulate inorganic solids having a particle size in the range from 1 to 100 nm; andd) at least one organic monomer, oligomer or polymer containing at least one epoxide group.