Fluorescent display

US9989681B2 · kind B2 · utility

Assignee

• Kuraray Europe GmbH · DE

Inventors

• Marco Greb · Hattersheim, DE
• Philipp Lellig · Troisdorf, DE
• Uwe Keller · Avon, FR

Key dates

• Filing date: Apr 16, 2015
• Grant date: Jun 5, 2018
• Expiry date: Nov 22, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2605/006
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Fluorescent displays are manufactured by lamination of at least one film A containing a polyvinyl acetal PA and, optionally, a plasticizer WA and at least one film B containing a polyvinyl acetal PB and at least one plasticizer WB between two glass panes, wherein prior to lamination, film A contains less than 22 wt. % plasticizer WA and contains 0.001 to 5 wt. % fluorophores, and film B contains at least 22 wt. % plasticizer WB and contains 0.005-5 wt. % UV absorber, each before lamination.