Patent · US Expired

Substrate comprising an abrasion-resistant diffusion barrier layer system

US6855396B1 · kind B1 · utility

24Cited by

14References

32Claims

0Family size

Assignee

Institut fuer Neue Materialien gemeinnuetzige GmbH · DE

Inventors

Martin Mennig · Idar-Oberstein, DE
Peter W. Oliveira · Riegelsberg, DE
Helmut Schmidt · Riegelsberg, DE

Key dates

Filing date	Oct 27, 2000
Grant date	Feb 15, 2005
Priority date	—
Expiry date	Mar 28, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/254
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A substrate has an abrasion-resistant diffusion barrier layer system having: a hard base layer including a coating composition based on a polymer containing reactive surface groups; and a nanostructured topcoat obtained by applying a nanoscale composition comprising sol particles and/or particulate solids to the basecoat and then curing it. The system features good abrasion resistance and diffusion barrier effect, and is particularly suitable as a protective coat for plastic substrates.

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