公开(公告)号：DE19738369A1

公开(公告)日：1999-03-25

申请号：DE19738369

申请日：1997-09-02

Applicant: BASF AG

Inventor： SCHUHMACHER PETER DR ,  SCHNEIDER NORBERT ,  RICHTER VOLKER ,  KELLER HARALD DR ,  BLASCHKA PETER ,  BETTINGER GUENTER ,  MEYER FRANK DR ,  BECK ERICH DR ,  SIEMENSMEYER KARL DR ,  STEININGER HELMUT DR

IPC: C08G63/68 ,  C08G64/04 ,  C09B67/00 ,  C09D5/36 ,  C09K19/00 ,  C09B67/20 ,  A61K7/00 ,  B05D7/26 ,  B29C41/12 ,  C08J3/28 ,  C09C1/00 ,  C09C3/00 ,  C09D5/29 ,  C09D17/00 ,  C09K19/38 ,  C14C11/00

Abstract: Cholesteric material is produced by applying a pourable cholesteric mixture to a support and forming a solid layer.- DETAILED DESCRIPTION - Cholesteric material comprises a cholesteric layer(s) of average thickness below 0.2 mu .- INDEPENDENT CLAIMS are included for the production of the material by applying a pourable cholesteric mixture to a support and forming a solid layer, a pigment obtained by grinding the material and a composition containing the pigment.TF - TECHNOLOGY FOCUS - POLYMERS - The mixture has a viscosity of 10-500 (10-100) mPa.s at 23degreesC, is applied at 1-800 (1-500) m/min. and is prepared by mixing a comprises a cholesteric monomer(s) in an inert diluent, an achiral, nematic monomer(s) and a chiral compound in an inert diluent, a cholesteric, crosslinkable oligomer or polymer in an inert diluent, a cholesteric polymer in a polymerizable diluent or a cholesteric polymer which can be congealed on rapid cooling below the Tg (claimed)

公开(公告)号：AU772154B2

公开(公告)日：2004-04-08

申请号：AU3156300

申请日：2000-02-17

Applicant: BASF AG

Inventor： SCHUHMACHER PETER ,  SCHNEIDER NORBERT ,  RICHTER VOLKER ,  BEST WOLFGANG ,  KOHL ALBERT ,  BLASCHKA PETER ,  SIERAKOWSKI CLAUDIA

IPC: B32B9/00 ,  C09B67/00 ,  C09B67/04 ,  C09B67/20 ,  C09D5/29 ,  C09D5/36 ,  C09D201/00 ,  C09J201/00 ,  C09K19/00

Abstract: The present invention relates to novel cholesteric layered materials having the layer sequence A /B/A , where A and A are identical or different and each comprise at least one cholesteric layer, and B is at least one interlayer separating the layers A and A from one another, wherein layer B is an adhesive layer; cholesteric multilayered pigments which can be produced therefrom; a process for their production, and their use.

公开(公告)号：PT1078975E

公开(公告)日：2004-03-31

申请号：PT00118522

申请日：2000-08-25

Applicant: BASF AG

Inventor： SCHNEIDER NORBERT ,  SCHUHMACHER PETER ,  FRANK PRECHTL DR ,  FRANK MEYER DR ,  PARKER ROBERT ,  RICHTER VOLKER ,  PETER HEILMANN DR ,  VOLKER KOCH 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：DE59810413D1

公开(公告)日：2004-01-22

申请号：DE59810413

申请日：1998-09-01

Applicant: BASF AG

Inventor： SCHUHMACHER PETER ,  SCHNEIDER NORBERT ,  RICHTER VOLKER ,  KELLER HARALD ,  BLASCHKA PETER ,  BETTINGER GUENTER ,  MEYER FRANK ,  HEILMANN PETER ,  BEST WOLFGANG

IPC: C09B67/02 ,  C08G59/20 ,  C09B67/00 ,  C09B67/20 ,  C09C1/00 ,  C09C1/56 ,  C09C3/10 ,  C09D5/36 ,  C09D11/00 ,  C09D201/00 ,  C09K19/00 ,  C09K19/02

Abstract: A platelet-shaped cholesteric multilayer pigment which comprises the layer sequence A1/B/A2whereA1 and A2 are identical or different and each comprise at least one cholesteric layer, andB is at least one interlayer which separates the layers A1 and A2 from one another and which absorbs all or some of the light transmitted by the layers A1 and A2,processes for its preparation, and its use are all described.

公开(公告)号：DE59807086D1

公开(公告)日：2003-03-06

申请号：DE59807086

申请日：1998-09-01

Applicant: BASF AG

Inventor： SCHUHMACHER PETER ,  SCHNEIDER NORBERT ,  RICHTER VOLKER ,  KELLER HARALD ,  BLASCHKA PETER ,  BETTINGER GUENTER ,  MEYER FRANK ,  BECK ERICH ,  SIEMENSMEYER KARL ,  STEININGER HELMUT ,  BEST WOLFGANG

IPC: G02B5/20 ,  B32B27/08 ,  C08F220/26 ,  C08G63/68 ,  C08G64/04 ,  C09B67/00 ,  C09B67/04 ,  C09D5/29 ,  C09D5/36 ,  C09D11/02 ,  C09D201/00 ,  C09K19/00 ,  C09K19/38 ,  G02B5/30

Abstract: Cholesteric material is produced by applying a pourable cholesteric mixture to a support and forming a solid layer. Cholesteric material comprises a cholesteric layer(s) of average thickness below 0.2 mu . Independent claims are included for the production of the material by applying a pourable cholesteric mixture to a support and forming a solid layer, a pigment obtained by grinding the material and a composition containing the pigment.

公开(公告)号：CA2316702A1

公开(公告)日：2001-02-27

申请号：CA2316702

申请日：2000-08-24

Applicant: BASF AG

Inventor： PRECHTL FRANK ,  RICHTER VOLKER ,  PARKER ROBERT ,  MEYER FRANK ,  SCHNEIDER NORBERT ,  HEZEL TILMANN ,  HAREMZA SYLKE ,  BLASCHKA PETER

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 ,  C09K19/38 ,  B05D5/06

Abstract: The invention relates to cholesteric layered material having improved color shift stability, to pigments prepared therefrom, and to a process for the production and use thereof.

公开(公告)号：AU3156300A

公开(公告)日：2000-09-04

申请号：AU3156300

申请日：2000-02-17

Applicant: BASF AG

Inventor： SCHUHMACHER PETER ,  SCHNEIDER NORBERT ,  RICHTER VOLKER ,  BEST WOLFGANG ,  KOHL ALBERT ,  BLASCHKA PETER ,  SIERAKOWSKI CLAUDIA

IPC: B32B9/00 ,  C09B67/00 ,  C09B67/04 ,  C09B67/20 ,  C09D5/29 ,  C09D5/36 ,  C09D201/00 ,  C09J201/00 ,  C09K19/00

Abstract: The present invention relates to novel cholesteric layered materials having the layer sequence A /B/A , where A and A are identical or different and each comprise at least one cholesteric layer, and B is at least one interlayer separating the layers A and A from one another, wherein layer B is an adhesive layer; cholesteric multilayered pigments which can be produced therefrom; a process for their production, and their use.

公开(公告)号：DE19757699A1

公开(公告)日：1999-06-24

申请号：DE19757699

申请日：1997-12-23

Applicant: BASF AG

Inventor： SCHUHMACHER PETER DR ,  SCHNEIDER NORBERT ,  RICHTER VOLKER ,  KELLER HARALD DR ,  BEST WOLFGANG ,  MEYER FRANK DR

IPC: C09B67/00 ,  C09K19/00 ,  C09B67/20 ,  B05D7/16 ,  C08L87/00 ,  C09D5/29 ,  C09D5/36 ,  C09D17/00 ,  C09K19/38 ,  G09F3/00

Abstract: Flaky, multilayer cholesteric pigment has layer(s) that (partly) absorb transmitted light between cholesteric layers. The sequence of the layers is: A /B/A A , A = cholesteric layer(s); B = intermediate layer(s) that absorb part of all the light transmitted by A and A An Independent claim is also included for the production of the pigment.

公开(公告)号：DE19738368A1

公开(公告)日：1999-03-04

申请号：DE19738368

申请日：1997-09-02

Applicant: BASF AG

Inventor： SCHUHMACHER PETER DR ,  SCHNEIDER NORBERT ,  RICHTER VOLKER ,  KELLER HARALD DR ,  BETTINGER GUENTER ,  BLASCHKA PETER ,  HEILMANN PETER DR ,  MEYER FRANK DR

IPC: B05D7/26 ,  C08G59/20 ,  C09B67/00 ,  C09B67/20 ,  C09C1/00 ,  C09C1/24 ,  C09C1/34 ,  C09C1/56 ,  C09C3/00 ,  C09D5/29 ,  C09D5/36 ,  C09D17/00 ,  C09K19/00 ,  C09K19/38 ,  C14C11/00 ,  A61K7/00 ,  B29C41/36 ,  C14C9/00

Abstract: A platelet-form cholesteric multilayer pigment has layers A /B/A where A and A are cholesteric layers and B is an intermediate layer partially or wholly absorbing the light transmitted by A and A . An Independent claim relates to the preparation of the pigment by depositing the layers simultaneously or sequentially on a carrier, hardening them, removing the carrier and pulverising the layers.

公开(公告)号：ES2209737T3

公开(公告)日：2004-07-01

申请号：ES00118522

申请日：2000-08-25

Applicant: BASF AG

Inventor： PRECHTL FRANK DR ,  SCHNEIDER NORBERT ,  MEYER FRANK DR ,  PARKER ROBERT ,  RICHTER VOLKER ,  HEILMANN PETER 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).