Rewriteable optical recording material having good solubility

US7214451B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Horst Berneth · Leverkusen, DE
• Thomas Bieringer · Odenthal, DE
• Rainer Hagen · Leverkusen, DE
• Serguei Kostromine · Rheinbach, DE

Key dates

• Filing date: Sep 23, 2002
• Grant date: May 8, 2007
• Expiry date: Apr 11, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/146
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polymeric material suitable for the preparation of optical recording media for volume data storage is disclosed. The molecular structure of the material contains a main chain derived from any of poly(meth)acrylate, poly(meth)acrylamide, polysiloxane, polyurea, polyurethane, polyester, polystyrene and cellulose, and the side chains contain a) azobenzene dye, b) form anisotropic grouping, and c) at least one monomer selected from the group consisting ofwhere R=H or methyl,R′ and R″ independently denote CnH2n+1 or CnH2n-OH and R′″ denotes —CnH2N—OH.