公开(公告)号：DE3211400A1

公开(公告)日：1983-09-29

申请号：DE3211400

申请日：1982-03-27

Applicant: BASF AG

Inventor： ETZBACH KARL-HEINZ DR ,  RINGSDORF HELMUT PROF DR ,  PORTUGALL MICHAEL DR ,  SCHMIDT HANS-WERNER

IPC: C09K19/60 ,  C08F20/00 ,  C08F20/26 ,  C08F20/34 ,  C08F20/38 ,  C08F20/52 ,  C08F246/00 ,  C09B69/10 ,  C09K19/38 ,  C09K19/42 ,  C09K19/54 ,  C08F20/30 ,  C08F20/36 ,  C08F20/56 ,  C08F20/58 ,  C08F20/60 ,  C09K3/34

Abstract: The polymer chain comprises (a) one or more monomers possessing a nematogenic, chiral or smectogenic group, or a mixture of monomers possessing a nematogenic group with those possessing a chiral group, and (b) one or more monomers possessing a radical of a pleochroic dye, and the nematogenic, the chiral and the smectogenic groups are bonded to the polymerizable group either directly or, like the dye radicals, via a spacer. The polymers can be used, together with low molecular weight liquid crystals or liquid crystal mixtures, in electrooptical displays.

公开(公告)号：DE19543637A1

公开(公告)日：1997-05-28

申请号：DE19543637

申请日：1995-11-23

Applicant: BASF AG

Inventor： ETZBACH KARL-HEINZ DR ,  SIEMENSMEYER KARL DR ,  PAULUS WOLFGANG DR ,  SCHUHMACHER PETER DR ,  GLUESEN BIRGIT ,  RINGSDORF HELMUT PROF DR ,  WENDORFF JOACHIM H PROF DR ,  SIMMERER JUERGEN DR ,  HAARER DIETRICH PROF DR ,  KETTNER ANDREAS

IPC: H01L51/50 ,  C07C63/307 ,  C07C69/00 ,  C09K19/32 ,  G03G5/06 ,  G03G5/07 ,  H01B1/12 ,  H01L51/00 ,  H01L51/30 ,  C07C309/68 ,  C07C69/75 ,  C07C69/76 ,  C07C69/017 ,  C07C43/20

Abstract: The invention concerns the use of compounds present in the liquid-crystalline phase discotic in a plastic-columnar manner for conveying electrical charges.

公开(公告)号：DE4325238A1

公开(公告)日：1995-02-02

申请号：DE4325238

申请日：1993-07-28

Applicant: BASF AG

Inventor： HAEUSLING LUKAS DR ,  FUNHOFF DIRK DR ,  SIEMENSMEYER KARL DR ,  ETZBACH KARL-HEINZ DR ,  RINGSDORF HELMUT PROF DR ,  SCHUHMACHER PETER ,  KEINAN EHUD PROF

IPC: C07D487/16 ,  C09K19/34 ,  G03G5/06 ,  H01L51/00 ,  H01L51/30 ,  C07D239/72 ,  G03G5/07 ,  H01L31/04

公开(公告)号：DE3429438A1

公开(公告)日：1988-06-23

申请号：DE3429438

申请日：1984-08-10

Applicant: BASF AG

Inventor： ETZBACH KARL-HEINZ DR ,  NEUMANN PETER DR ,  DUST MATTHIAS DR ,  RINGSDORF HELMUT PROF DR ,  SCHMIDT HANS-WERNER DR ,  BAUR GUENTER DR ,  WINDSCHEID FRIEDRICH ,  KIEFER RUDOLF DR

IPC: B41M5/26 ,  C09K19/38 ,  C09K19/40 ,  G02F1/13 ,  G11B7/24 ,  G11B7/244 ,  G11B7/245 ,  G11B7/248 ,  G11B7/25 ,  C09K19/00

Abstract: An optical recording medium contains, on a base, one or more dyes and a polymer which forms liquid-crystalline phases. The information is written into the uniformly oriented liquid-crystalline polymer layer, for example by means of a laser. During this procedure, the polymer heats up locally to above a phase transition temperature. By cooling, the resulting change is frozen in the glass state. The information can be erased by applying an electric field and/or heating. The recording material permits high-contrast storage and possesses high sensitivity, good resolution and excellent stability.

公开(公告)号：DE3513795A1

公开(公告)日：1986-10-23

申请号：DE3513795

申请日：1985-04-17

Applicant: BASF AG

Inventor： RINGSDORF HELMUT PROF DR ,  GRIFFITH RENATE ,  VIERENGEL ANITA ,  NEUMANN PETER DR ,  HISGEN BERND DR ,  HORN DIETER DR

IPC: C07C59/13 ,  C07C69/353 ,  C07C69/75 ,  C07C69/76 ,  C07C309/09 ,  C07C317/04 ,  C07C317/14 ,  C07D213/20 ,  C09K19/30 ,  C09K19/32 ,  C09K19/34 ,  C09K19/40 ,  C07C149/273 ,  C07C101/12 ,  C07C101/18 ,  C07C101/19 ,  C07C143/11 ,  C07C147/02 ,  C07C149/20 ,  C07C149/40

公开(公告)号：DE3431133A1

公开(公告)日：1986-03-06

申请号：DE3431133

申请日：1984-08-24

Applicant: BASF AG

Inventor： HISGEN BERND DR ,  NEUMANN PETER DR ,  STERZEL HANS-JOSEF DR ,  RINGSDORF HELMUT PROF DR ,  RECK BERND DIPL CHEM

IPC: C08G63/18 ,  C08G63/68 ,  C08G63/685 ,  C08G69/26 ,  C08G69/44 ,  C08J5/18 ,  C09K19/38 ,  C08G63/66 ,  D01F1/00

公开(公告)号：DE19517208A1

公开(公告)日：1996-11-14

申请号：DE19517208

申请日：1995-05-11

Applicant: BASF AG

Inventor： PAULUS WOLFGANG DR ,  ETZBACH KARL-HEINZ DR ,  REGO JAMES DR ,  SCHUHMACHER PETER DR ,  HENDERSON PHILIPPE DR ,  RINGSDORF HELMUT PROF DR ,  KUMAR SANDEEP

IPC: G03G5/06 ,  C07C43/20 ,  C07C43/215 ,  C07C43/225 ,  C07C47/575 ,  C07C49/84 ,  C07C245/08 ,  C07C255/54 ,  C07C309/65 ,  C07C309/66 ,  C07C323/21 ,  C09K19/32 ,  H01L51/42 ,  C07C49/175 ,  C07C245/06 ,  C07C309/75 ,  H05B33/14

公开(公告)号：DE4126496A1

公开(公告)日：1993-02-11

申请号：DE4126496

申请日：1991-08-10

Applicant: BASF AG

Inventor： CLOSS FRIEDRICH DR ,  FREY THOMAS DR ,  FUNHOFF DIRK DR ,  SIEMENSMEYER KARL DR ,  RINGSDORF HELMUT PROF DR ,  HAARER DIETRICH PROF DR ,  STROHRIEGEL PETER DR

IPC: B41M5/26 ,  B41J2/46 ,  C09K19/02 ,  C09K19/38 ,  G03G5/00 ,  G03G5/06 ,  G03G5/07 ,  H01L51/42

Abstract: The invention relates to photoconductors having liquid-crystalline properties made from low-molecular-weight or polymeric organic compounds, where the photoconduction in the discotic phase is greater than in the non-liquid-crystalline phases, and to a process for increasing the photoconductivity by molecular ordering in photoconductors.

公开(公告)号：DE4007636A1

公开(公告)日：1991-09-12

申请号：DE4007636

申请日：1990-03-10

Applicant: BASF AG

Inventor： WAGENPLAST GERHARD DR ,  BACH VOLKER DR ,  CABRERA IVAN DR ,  DITTRICH ACHIM ,  RINGSDORF HELMUT PROF DR

IPC: C07D405/06 ,  C07D491/04 ,  C08F246/00 ,  C09K9/02 ,  C09K19/38 ,  G02F1/361 ,  G11B7/244

公开(公告)号：DE3906527A1

公开(公告)日：1990-09-06

申请号：DE3906527

申请日：1989-03-02

Applicant: BASF AG

Inventor： FUNHOFF DIRK DR ,  LEYRER REINHOLD J DR ,  LAUKE HARALD DR ,  RINGSDORF HELMUT PROF DR ,  WUESTEFELD RENATE ,  KARTHAUS OLAF ,  ZERTA ELFRIEDE

IPC: G02F1/13 ,  C08F20/30 ,  C08G63/187 ,  C08G63/197 ,  C08G63/66 ,  C08G83/00 ,  C08K5/03 ,  C08K5/29 ,  C08K5/32 ,  C08L33/04 ,  C08L33/14 ,  C08L67/00 ,  C08L67/02 ,  C09K19/34 ,  C09K19/38 ,  C09K19/58 ,  G03G5/07

Abstract: The polymeric discotic liquid-crystalline charge transfer complexes comprise A) at least one polymer which contains groups in chemically bound form which a1) do not form a liquid-crystalline phase by themselves, a2) form a calamitic liquid-crystalline phase by themselves or which a3) form a discotic liquid-crystalline phase by themselves, and B) at least one low-molecular-weight compound or a polymer having electron-acceptor or electron-donor action; the preparation of these novel complexes and a novel process for the preparation of single-phase liquid-crystalline polymer blends of polymers which are otherwise completely or substantially incompatible with one another, which leads to the formation of the novel complexes, are also described.