Electrochrome polymer systems

US6569361B1 · kind B1 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Horst Berneth · Leverkusen, DE
• Uwe Claussen · Leverkusen, DE
• Helmut-Werner Heuer · Krefeld, DE
• Serguei Kostromine · Rheinbach, DE

Key dates

• Filing date: Feb 1, 2000
• Grant date: May 27, 2003
• Expiry date: Feb 1, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2001/15145
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Electrochromic systems containing soluble electrochromic polymers which are accessible by polymerization, polycondensation or polyaddition from electrochromic monomers are used in devices for variable transparency to electromagnetic radiation.