公开(公告)号：DE50002234D1

公开(公告)日：2003-06-26

申请号：DE50002234

申请日：2000-02-23

Applicant: BASF AG

Inventor： MEYER DR ,  SCHUHMACHER DR ,  PRECHTL DR

IPC: C07D493/04 ,  A61K8/00 ,  A61K8/02 ,  A61K8/37 ,  A61K8/49 ,  A61Q5/00 ,  A61Q17/04 ,  C09K3/00 ,  C09K19/00 ,  C09K19/04 ,  C09K19/20 ,  C09K19/58 ,  A61K7/00 ,  A61K7/42

Abstract: New chiral doping agents (I) comprise dianhydrohexitol derivatives containing at least one polymerizable group. Chiral doping agents of formula (I) are new. Z1-Y1-(A1)m-Y2-M-Y3-X-Y4-(A2)n-Y5-Z 2 (I) A1, A2 = spacers having a chain length of 1-30C; Y1-Y5 = direct bond, O, S, C(O), C(O)O, OC(O), CH=CHC(O)O, OC(O)O, C(O)N(R), N(R)C(O), CH2O, CH=N, N=CH or N=N; M = mesogenic group; R = H or 1-4C alkyl; Z1, Z2 = H, 1-4C alkyl, polymerizable group (PG) or residue carrying a PG, provided that at least one is a PG or residue carrying a PG; X = dianhydrosorbitol, dianhydromannitol or dianhydroiditol residue; m, n = 0 or 1. An Independent claim is included for cholesteric liquid crystal compositions (A) (which preferably reflect left-circular polarized light in the UV region), comprising at least one chiral liquid crystalline monomer (I) which provides a cholesteric liquid crystalline phase having a pitch of less than 450 nm, optionally mixed with at least one achiral liquid crystalline monomer of formula (II). Z1-Y1-(A1)m-Y2-M-Y4-(A2)n-Y5-Z2 (II)

公开(公告)号：DE50004228D1

公开(公告)日：2003-12-04

申请号：DE50004228

申请日：2000-08-25

Applicant: BASF AG

Inventor： PRECHTL DR ,  SCHNEIDER NORBERT ,  MEYER DR ,  PARKER ROBERT ,  RICHTER VOLKER ,  HEILMANN DR ,  KOCH DR ,  SCHUHMACHER DR

IPC: G02B5/30 ,  C08F2/46 ,  C08F20/26 ,  C09B67/00 ,  C09B67/02 ,  C09B67/08 ,  C09B67/20 ,  C09D5/29 ,  C09D5/36 ,  C09D201/00 ,  C09K19/00 ,  G02F1/1335

Abstract: Cholesteric laminate material has at least one 3-dimensionally crosslinked, oriented cholesteric layer (I) showing a homogeneous interference line pattern over the entire thickness. Independent claims are also included for the following: (a) cholesteric pigment comprising layer(s) (I) with an average particle size of 5-50 mu m and thickness of 0.2-5 mu m; (b) compositions containing the pigment(s); (c) polarizers, comprising the laminate and optionally a substrate foil; (d) broad band polarizers comprising laminates with a total thickness of about 2-50 mu m (without substrate film) and 3-20 cholesteric layers with attuned reflection maxima; and (e) the production of the laminate with layer(s) (I).

公开(公告)号：DE59704058D1

公开(公告)日：2001-08-23

申请号：DE59704058

申请日：1997-03-25

Applicant: BASF AG

Inventor： KELLER DR ,  SIEMENSMEYER DR ,  SCHUHMACHER DR ,  MUELLER DR ,  ZENTEL PROF DR ,  MAXEIN GEORG

IPC: C08L1/08 ,  C09B67/00 ,  C09B67/04 ,  C09B67/20 ,  C09D5/36 ,  C09K19/00 ,  C09K19/38