Rear-projection film having a “day/night” effect

US9400420B2 · kind B2 · utility

Assignee

• Covestro Deutschland AG · DE

Inventors

• Heinz Pudleiner · Krefeld, DE
• Dirk Pophusen · Leverkusen, DE
• Roland Kuenzel · Leverkusen, DE
• Manfred Lindner · Pracht, DE
• Juergen Wojatschek · Eßlingen, DE
• Bernd Straub · Starzach, DE

Key dates

• Filing date: Jan 7, 2014
• Grant date: Jul 26, 2016
• Expiry date: Jan 7, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/10
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The present invention relates to rear-projection film with “day/night” effect comprising at least two layers, where the film comprises at least one grey layer comprising at least one thermoplastic with transmittance of from 10% to 70% in the visible wavelength range and at least one layer comprising at least one thermoplastic and scattering particles, and also to the use of the said films as rear-projection areas in the vehicle interior sector.