Transfer band

US6284396A · kind A · utility

Assignee

• GIESECKE & DEVRIENT GMBH · DE

Inventors

• Wittich Kaule · Grafing, DE
• Gregor Grauvogl · Hersbruck, DE

Key dates

• Filing date: Jun 10, 1997
• Grant date: Sep 4, 2001
• Expiry date: Jun 10, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31667
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a multilayer foil, in particular a transfer foil. The transfer foil consists of a carrier. foil, a one- or multilayer transfer layer containing an optically variable structure, and an intermediate layer located between the carrier foil and the transfer layer, the intermediate layer being a metal oxide or semiconductor oxide layer.