Patent · US Expired

Powder-coated substrates with topcoat based on silanes containing epoxide groups

US6500534B1 · kind B1 · utility

8Cited by

4References

8Claims

0Family size

Assignee

Institut fuer Neue Materialien gemeinnuetzige GmbH · DE

Inventors

Carola Dittfurth · Riegelsberg, DE
Stefan Sepeur · Wadgassen, DE
Ralf Winkler · Wittislingen, DE
Helmut Schmidt · Riegelsberg, DE

Key dates

Filing date	Nov 21, 2000
Grant date	Dec 31, 2002
Priority date	—
Expiry date	Nov 21, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2998
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to powder-coated substrates bearing on a powder-coated surface a scratch-resistant and abrasion-resistant topcoat of a coating material which comprises:a) condensates based on hydrolyzable silanes containing at least one non-hydrolyzable substituent, the hydrolyzable silanes having an epoxide group on at least one non-hydrolyzable 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.