Patent ID: 7214451
Filing Date: 2007-05-08
Classification: C08F,G11B,Y10S

Abstract:
1. A polymeric material the molecular structure of which contains main chains and side chains, the main chain including units derived a member selected from the group consisting of polyacrylate, polymethacrylate, polyacrylamide, polymethacrylamide, polysiloxane, polyurea, polyurethane, polyester, polystyrene and cellulose, and the side chains containing a) at least one azobenzene dye-containing monomer selected from the group consisting of  or an azobenzene dye conforming to formula (I)  wherein  R  m and n independently of one another denote an integer from 0 to 4,  —X  wherein  Q  i denotes an integer from 0 to 4,  T  S  p denotes an integer from 2 to 12,  R  R  X  R  and R b) at least one form anisotropic grouping conforming to formula (III)  wherein  Z denotes a radical of the formulae  wherein  A denotes O, S or N—C  X  X  X  R  R  Y denotes a single bond, —COO—, OCO—, —CONH—, —NHCO—, —CON(CH  R  q, r and s independently of one another denote an integer from 0 to 4,  Q  j denotes an integer from 0 to 4, wherein for j>1 the individual Q  T  S  p denotes an integer from 2 to 12,  R  R  with the proviso that the side chains contain at least one member selected from the group consisting of