Plastic film with a multilayered interference coating

US8034435B2 · kind B2 · utility

Assignee

• Tomoegawa Corporation · JP

Inventors

• Andreas Zimmermann · Griesheim, DE
• Fumio Kita · Wiesbaden, DE
• Anette Berni · Homburg, DE
• Martin Mennig · Idar-Oberstein, DE
• Peter W. Oliveira · Riegelsberg, DE
• Helmut Schmidt · Riegelsberg, DE
• Takamasa Harada · Oberursel, DE

Key dates

• Filing date: Mar 14, 2003
• Grant date: Oct 11, 2011
• Expiry date: Feb 5, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/256
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a plastic film with an interference multilayer system applied thereon that comprises at least two layers. Said layers can be obtained by hardening and/or applying thermal treatment to a coating composition containing nanoscale inorganic solid particles having polymerizable and/or polycondensable organic surface groups, thereby forming a layer that is crosslinked by means of the polymerizable and/or polycondensable organic surface groups. The films can be used as an optical laminating film.