公开(公告)号：DE59703725D1

公开(公告)日：2001-07-12

申请号：DE59703725

申请日：1997-11-03

Applicant: BASF AG

Inventor： LUEDDECKE DR ,  PFEIFFER DR ,  MEYER DR

IPC: A23K1/16 ,  A23K20/179 ,  A23L1/275 ,  A23L5/44 ,  A61K8/35 ,  A61K8/67 ,  A61K8/92 ,  A61K9/107 ,  A61K31/07 ,  A61K47/06 ,  A61Q19/00 ,  C07C403/00 ,  C09B61/00 ,  C09B67/46 ,  A61K7/48

Abstract: A liquid, oil-miscible carotenoid (I) preparation (A) comprises a double dispersion system, consisting of a dispersion in oil of droplets (having particle size below 100 mu m) of an aqueous phase containing dispersed particles of (I) stabilised by a protective colloid.

公开(公告)号：DE50102568D1

公开(公告)日：2004-07-22

申请号：DE50102568

申请日：2001-03-08

Applicant: BASF AG

Inventor： PRECHTL DR ,  HAREMZA DR ,  MEYER DR ,  PARKER ROBERT ,  KUERSCHNER DR ,  VILL DR ,  PAUL DR

IPC: G02F1/13 ,  C07D319/06 ,  C08F20/30 ,  C08J5/18 ,  C09K19/34 ,  C09K19/38 ,  C09K19/58

Abstract: Chiral 2,4,5-tri-substituted 1,3-dioxane compounds (I), with different substituents containing a mesogenic group, and their diastereomers are new. Chiral 2,4,5-tri-substituted 1,3-dioxane compounds of formula (I), with different substituents containing a mesogenic group, and their diastereomers are new: [Image] R1>[P-Y1>-(A1>)m-Y2>-]qM-Y3>-(A2>)n-Y4>- group; R2>, R3>[P-Y1>-(A1>)m-Y2>-]qM-Y3>-(A2>)n-Y4>'-; A1>, A2>spacers with 1-30 carbon atoms; M : a mesogenic group; Y1>, Y2>, Y3>, Y4>a single bond, -O-, -S-, -CO-, -CO-O-, -O-CO-, -CO-N(R)-, -(R)N-CO-, -O-CO-O-, -O-CO-N(R)-, -(R)N-CO-O- or -(R)N-CO-N(R)-; Y4>' : -O-, -O-CO-, -O-CO-O- or -O-CO-N(R)-, with the O atom attaching R2>, R3> to the 1,3-dioxane ring; R : hydrogen or 1-4C alkyl; P : H, 1-12C alkyl, a polymerizable group or a group containing a polymerizable group; m, n : 0 or 1; q : 1, 2 or 3. Independent claims are also included for: (a) liquid crystal (LC) compositions containing chiral compound(s) (I); (b) polymerizable LC compositions containing chiral compound(s) (I); (c) optical devices produced using these compositions; (d) printed or coated substrates, dispersions and emulsions, films or pigments prepared using the polymerizable LC compositions.

公开(公告)号：DE59708358D1

公开(公告)日：2002-11-07

申请号：DE59708358

申请日：1997-07-21

Applicant: BASF AG

Inventor： MEYER DR ,  GRIMMER KARL ,  NITZSCHMANN DR ,  JAEGER MICHAEL ,  REUVERS DR ,  KLING DR ,  PURUCKER DR ,  WUNDER DR ,  EIDEN DR

IPC: B01D53/14 ,  B01D53/56 ,  B01D53/58 ,  B01D53/68 ,  B01D53/78

公开(公告)号：DE59900390D1

公开(公告)日：2001-12-13

申请号：DE59900390

申请日：1999-03-26

Applicant: BASF AG

Inventor： SCHWAB DR ,  SCHULZ DR ,  BREITSCHEIDEL DR ,  MEYER DR

IPC: B01J23/36 ,  C07B61/00 ,  C07C6/02 ,  C07C7/163 ,  C07C11/06 ,  C07C41/06 ,  C10G35/06

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：DE59607179D1

公开(公告)日：2001-08-02

申请号：DE59607179

申请日：1996-08-26

Applicant: BASF AG

Inventor： MEYER DR ,  SIEMENSMEYER KARL ,  ETZBACH KARL-HEINZ ,  SCHUHMACHER PETER

IPC: G02F1/13 ,  C07C69/96 ,  C07D319/12 ,  C09D5/00 ,  C09K19/00 ,  C09K19/20 ,  C09K19/34 ,  C09K19/38

Abstract: PCT No. PCT/EP96/03756 Sec. 371 Date Mar. 2, 1998 Sec. 102(e) Date Mar. 2, 1998 PCT Filed Aug. 26, 1996 PCT Pub. No. WO97/00600 PCT Pub. Date Jan. 9, 1997Polymerizable liquid-crystalline compounds of the formula IZ1-Y1-A1-Y3-M-Y4-A2-Y2-Z2Iwhere Z1 and Z2 are radicals containing reactive groups via which polymerization can be effected, Y1-Y4 are a single chemical bond, oxygen, sulfur, -O-CO-, -CO-O-, -O-CO-O-, -CO-NR-, -NR-CO-, -O-CO-NR-, -NR-CO-O- or -NR-CO-NR-, where at least one of the groups Y3 and Y4 is -O-CO-O-, -O-CO-NR-, -NR-CO-O- or -NR-CO-NR-, A1 and A2 are spacers having 2 to 30 carbon atoms in which the carbon chain may be interrupted by ether oxygen, thioether sulfur or by nonadjacent imino or C1-C4-alkylimino groups, M is a mesogenic group, R is C1-C4-alkyl, and compositions comprising them are distinguished by favorable liquid-crystalline phase-temperature ranges and can be used in optical display devices and in cholesteric liquid-crystalline colorants.

公开(公告)号：DE50005489D1

公开(公告)日：2004-04-08

申请号：DE50005489

申请日：2000-08-25

Applicant: BASF AG

Inventor： PRECHTL DR ,  SCHNEIDER NORBERT ,  MEYER DR ,  BLASCHKA PETER ,  HAREMZA DR ,  HEZEL DR ,  PARKER ROBERT ,  RICHTER VOLKER

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, comprises at least one 3-dimensionally crosslinked, oriented cholesteric layer (I) which shows no color shift that can be induced by external stimuli. 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：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)