Process for the production of documents which cannot be falsified

US4389472A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Karl-Friedrich Neuhaus · Krefeld, DE
• Hans J. Rosenkranz · Krefeld, DE
• Hermann Perrey · Krefeld, DE

Key dates

• Filing date: Dec 16, 1980
• Grant date: Jun 21, 1983
• Expiry date: Dec 16, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31928
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

The process relates to the production of tamperproof documents by laminating an information carrier on one or both sides with foils which have an adhesive layer which is hardened by radical cross-linking.