Rewriteable optical recording material having good solubility

Abstract

Polymeric material suitable for the preparation of optical recording media for binary and/or multibit and/or volume data storage is disclosed. The molecular structure of the material contains a main chain and side chains. The main chain is derived from any of polyacrylate, polymethacrylate, polyacrylamide, polymethacrylamide, 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 of 1 wherein R′ and R″ independently of one another denote CnH2n+1 or CnH2n—OH, where n=1 to 10, or together denote a —CnH2n-bridge where n=2 to 6, a —(C2H4—O)n—C2H4-bridge, where n=1 to 5, or a —C2H4—N(CnH2n+1)—C2H4-bridge where n=1 to 6, and where R═H or methyl, 2 wherein R′″ denotes the radical —CnH2n—OH where n=1 to 10, the radical —(C2H4—O)n—H where n=2 to 4, or the radical —CnH2n—C(═O)NR″″ R′″″ where n=2 to 10, where R″″ and R′″″ either independently of one another denote CnH2n+1 or CnH2n—OH, where n=1 to 10, or together denote a —CnH2n-bridge where n=2 to 6, a —(C2H4—O)n—C2H4-bridge, where n=1 to 5, or a —C2H4—N(CnH2n+1)—C2H4-bridge where n=1 to 6, and R═H or methyl.

Dependencies are inferred from the claim text.