公开(公告)号：JP2001172329A

公开(公告)日：2001-06-26

申请号：JP2000255434

申请日：2000-08-25

Applicant: BASF AG

Inventor： MEYER FRANK ,  PRECHTL FRANK ,  SCHNEIDER NORBERT ,  HEILMANN PETER ,  KOCH VOLKER ,  PARKER ROBERT ,  RICHTER VOLKER ,  SCHUMACHER 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

Abstract: PROBLEM TO BE SOLVED: To obtain a cholesteric layer material with improved color impression and to provide a method for manufacturing the same. SOLUTION: In this material, the crosslinked cholesteric layer exhibits an interference fringe pattern which is homogeneous across the whole range of thickness. The cholesteric layer material of this invention and products derived from the same are superb in that their color does not go out of registration in a visually detectable way.

公开(公告)号：JP2001154024A

公开(公告)日：2001-06-08

申请号：JP2000255435

申请日：2000-08-25

Applicant: BASF AG

Inventor： PRECHTL FRANK ,  SCHNEIDER NORBERT ,  MEYER FRANK ,  BLASCHKA PETER ,  HAREMZA SYLKE DR ,  HEZEL TILMANN ,  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: PROBLEM TO BE SOLVED: To provide a cholesteric layer material having improved color stability, and a method for manufacturing it and its use. SOLUTION: A cholesteric layer material, having at least one kind of cholesteric layer three-dimensionally cross-linked and aligned, is used. The cholesteric layer cross-linked will not show visible color slippages.

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：AT253105T

公开(公告)日：2003-11-15

申请号：AT00118522

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 ,  KOCH VOLKER DR ,  SCHUHMACHER 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).

公开(公告)号：CA2316623A1

公开(公告)日：2001-02-27

申请号：CA2316623

申请日：2000-08-24

Applicant: BASF AG

Inventor： HEILMANN PETER ,  PRECHTL FRANK ,  SCHNEIDER NORBERT ,  PARKER ROBERT ,  SCHUHMACHER PETER ,  RICHTER VOLKER ,  MEYER FRANK ,  KOCH 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 ,  C09K19/38 ,  B05D5/06

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

公开(公告)号：DE19906589A1

公开(公告)日：2000-08-24

申请号：DE19906589

申请日：1999-02-17

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 ,  C09D17/00

Abstract: An adhesive layer (B) forms the interlayer between similar or different cholesteric layers (A1) and (A2) in a cholesteric laminate material with the layer sequence A1/B/A2. Independent claims are also included for: (i) a process for the production of cholesteric laminate material by: (a) coating a base with a first coating material which is hardened to form layer (A1); (b) coating (A1) with a second material containing heat- and/or pressure-activated adhesive(s) to form a laminate A1/B with adhesive layer (B); (c) coating another base with a third coating material which is hardened to form layer (A2); (d) laminating (A2) with (A1/B) under elevated pressure and/or temperature to form laminate A1/B/A2; (e) stripping off the second base; and optionally (f) stripping off the first base; (ii) a process for the production of multilayer cholesteric flake pigments with the layer sequence A1/B/A2 by milling the above material to a particle size of up to 200 microns; (iii) cholesteric flake pigments obtained by this process; and (iv) compositions and coating materials containing these multilayer pigments.

公开(公告)号：DE4220860A1

公开(公告)日：1994-01-05

申请号：DE4220860

申请日：1992-06-25

Applicant: BASF AG

Inventor： FITTERER HORST ,  BECKER DIETER ,  NOWAK UWE DR ,  SCHOMANN KLAUS DIETER DR ,  MUELLER HANS ,  RICHTER VOLKER ,  DINGLER ROBERT ,  BAUR REINHOLD DR ,  SCHLATTER MANFRED DR ,  HUEBNER DIETMAR

IPC: B08B5/04 ,  B08B5/02 ,  B08B11/00 ,  B08B15/00 ,  G11B23/50 ,  B08B1/02 ,  B65H23/34

Abstract: For cleaning or smoothing the surface of a material web (2), the latter is passed over at least one blade (4), the web being pressed against the blade edge (10) by means of a vacuum. The opening (9) of a vacuum chamber (8) formed next to the blade (4) is adjustable with respect to the blade edge (10), so that different flows and forces can be set.

公开(公告)号：DE50009221D1

公开(公告)日：2005-02-17

申请号：DE50009221

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：AT260963T

公开(公告)日：2004-03-15

申请号：AT00118521

申请日：2000-08-25

Applicant: BASF AG

Inventor： PRECHTL FRANK DR ,  SCHNEIDER NORBERT ,  MEYER FRANK DR ,  BLASCHKA PETER ,  HAREMZA SYLKE DR ,  HEZEL TILMANN 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：DE19940681A1

公开(公告)日：2001-03-01

申请号：DE19940681

申请日：1999-08-27

Applicant: BASF AG

Inventor： PRECHTL FRANK ,  SCHNEIDER NORBERT ,  MEYER FRANK ,  BLASCHKA PETER ,  HAREMZA SYLKE ,  HEZEL TILMANN ,  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 ,  C09K19/02 ,  C09D5/00 ,  C09D11/00 ,  G02F1/13

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).