-
公开(公告)号：DE4422332A1
公开(公告)日：1996-01-04
申请号：DE4422332
申请日：1994-06-27
Applicant: BASF AG
Inventor： HAEUSLING LUKAS DR , SIEMENSMEYER KARL DR , ETZBACH KARL-HEINZ DR , PAULUS WOLFGANG DR , RINGSDORF HELMUT PROF DR , SCHUHMACHER PETER , HAARER DIETRICH PROF DR , ADAM DIETER , SIMMERER JUERGEN
IPC: C07C13/47 , C07C15/62 , C07C22/04 , C07C25/22 , C07C43/20 , C07C43/23 , C07C69/00 , C07C69/734 , C07C69/75 , C07C69/76 , C07F7/08 , C07F7/18 , C07F7/21 , C09K19/32 , C09K19/40 , G03G5/06 , G03G5/07 , C07C11/02 , C07C13/18 , C07C15/16 , C07C43/04
Abstract: Compounds have the general formula (I) Z[-Y -(A-Y )m-X]n, in which the variables have the following meanings: Z stands for an n-valent aliphatic residue with 2 to 20 C atoms or for an n-valent three to seven-membered saturated or unsaturated carbocyclic or heterocyclic residue that may also be benzocyclised, or for an n-valent siloxane or cyclosiloxane residue with up to 10 Si atoms; Y , Y stand for a chemical bond, oxygen, sulphur or a group -CO-O-, -O-CO-, -N(R)-CO- or -CO-N(R)-; m equals 0 or 1; A stands for an alkylene group with 2 to 20 C atoms in which non-adjacent C atoms may be substituted by oxygen, sulphur, -CO-O-, -O-CO- or -N(R)-; n equals 2 to 6; R stands for hydrogen or C1-C4-alkyl; and X stands for a substituted triphenylene residue. Because they recur n times in the compounds, A, Y , Y , m and X may be the same or different. These compounds are useful as charge carriers.
-
公开(公告)号：DE4109262A1
公开(公告)日：1991-10-02
申请号：DE4109262
申请日：1991-03-21
Applicant: BASF AG
Inventor： BACH VOLKER DR , SIEMENSMEYER KARL DR , RINGSDORF HELMUT PROF DR , CABRERA IVAN DR , DIELE SIEGMAR DR , PELZL GERHARD DR
IPC: C07C69/007 , C07C69/773 , C08F38/00 , G02F1/361 , G11B7/244 , G11B7/245
Abstract: New dialkynyl malonate derivs (I); and new unsatd polymers (II) are claimed. A = organic gp contg aromatic ring(s), which intrinsically (A1) cannot form liq crystalline (LC) phases and/or (A1) has nonlinear optical properties and/or (A3) has photochromic properties or which (A4) can form calamitic LC and/or (A5) discotic LC phase(s) or which (A6) can form calamitic LC and/or discotic LC phase(s) and also has nonlinear optical and/or photochromic properties; n = an integer from 1 to 6; B = a bifunctional -X-(Y)m-X- gp; X = -MRR1- or -M1-R- with M = Si, Ge or Sn, M1 = B, Al or P and R and R1 independently = alkyl(aryl) or (alkyl)-cycloalkyl; Y = a bifunctional organic or organometallic, low mol, oligomeric or polymeric linking gp, 0 or S, which has a metal-metal bond if m = 0 and M = Si, Ge or Sn or a polycentred bond if m = 0 and M1 = B or Al; m = 0 or 1. (I) are prepd by reacting malonyl dichloride with the relevant unsatd alcohol, esp prop-2-yn-l-ol, and Knoevenagel condensation with suitable low mol cpds, using piperidine acetate as catalyst. (II) are prepd (claimed) by reacting (I) and cpd(s) having negatively polarised H atoms of formula H-X-(Y)m-X-H (III). USE/ADVANTAGE - (I) are claimed for use as starting materials for (II); and both (I) and (II) are claimed for producing materials and equipment with photochromic, LC and/or nonlinear optical properties, which are claimed for use in holography, laser optical data recording, reprography, nonlinear optics and information displays. (I) and (II) can be prepd easily.
-
公开(公告)号：DE3580536D1
公开(公告)日：1990-12-20
申请号：DE3580536
申请日：1985-08-02
Applicant: BASF AG
Inventor： ETZBACH KARL-HEINZ DR , NEUMANN PETER DR , DUST MATTHIAS DR , RINGSDORF HELMUT PROF DR , SCHMIDT HANS-WERNER , BAUR GUENTER , WINDSCHEID FRIEDRICH , KIEFER RUDOLF
IPC: B41M5/26 , C09K19/38 , C09K19/40 , G02F1/13 , G11B7/24 , G11B7/244 , G11B7/245 , G11B7/248 , G11B7/25
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：DE3585248D1
公开(公告)日：1992-03-05
申请号：DE3585248
申请日：1985-08-12
Applicant: BASF AG
Inventor： HISGEN BERND DR , NEUMANN PETER DR , STERZEL HANS-JOSEF DR , RINGSDORF HELMUT PROF DR , RECK BERND
Abstract: Polymers contg. mesogenic gps. are made up of polymer chairs contg. mesogenic gps., to which are bound side chains which each contain a mesogenic gp.. Pref. the mesogenic gps. in the polymer chain are bonded together via aliphatic or araliphatic gps. contg. hetero atoms in the chain, or by aromatic gps., and the side chains contg. mesogenic gps. are bound to the aliphatic, araliphatic or aromatic gps. in the polymer chain or to the mesogenic gps. in the polymer chain, pref. where the mesogenic gps. in the side chains are each bound to the polymer chain via an aliphatic gp. with hetero atoms in the chain with up to 12 chain members.
-
公开(公告)号：DE3907095A1
公开(公告)日：1990-09-13
申请号：DE3907095
申请日：1989-03-06
Applicant: BASF AG
-
Patent Agency Ranking
公开(公告)号：DE59209057D1
公开(公告)日：1998-01-22
申请号：DE59209057
申请日：1992-07-25
Applicant: BASF AG
Inventor： CLOSS FRIEDRICH DR , FREY THOMAS DR , FUNHOFF DIRK DR , SIEMENSMEYER KARL DR , RINGSDORF HELMUT PROF DR , HAARER DIETRICH PROF DR , STROHRIEGL PETER DR
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：ES2109295T3
公开(公告)日：1998-01-16
申请号：ES92112754
申请日：1992-07-25
Applicant: BASF AG
Inventor： CLOSS FRIEDRICH DR , FREY THOMAS DR , FUNHOFF DIRK DR , SIEMENSMEYER KARL DR , RINGSDORF HELMUT PROF DR , HAARER DIETRICH PROF DR
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：DE4429597A1
公开(公告)日：1996-02-22
申请号：DE4429597
申请日：1994-08-20
Applicant: BASF AG
Inventor： PAULUS WOLFGANG DR , HAEUSLING LUKAS DR , SIEMENSMEYER KARL DR , ETZBACH KARL-HEINZ DR , ADAM DIETR , SIMMERER JUERGEN , RINGSDORF HELMUT PROF DR , SCHUHMACHER PETER , HAARER BAYREUTH PROF DR , KUMAR SANDEEP DR
IPC: C07C43/225 , C07C321/28 , C07C323/21 , C09K19/02 , C09K19/04 , C09K19/12 , C09K19/32 , C09K19/38 , G03G5/06 , G03G5/07 , H01L51/00 , H01L51/30 , H01L51/50 , C07C43/20
Abstract: Low-molecular or polymer organic compounds available in a column-shaped helical phase with liquid crystal properties are useful as photoconductors or in electronic components. Also disclosed are photoconductive layers containing the same, an electrophotographic recording material and a process for increasing photoconductivity.
-
公开(公告)号：DE3939973A1
公开(公告)日：1991-06-06
申请号：DE3939973
申请日：1989-12-02
Applicant: BASF AG
Inventor： FUCHS HARALD DR , LICHT ULRIKE DR , RINGSDORF HELMUT PROF DR , BLANKENBURG R DR , AHLERS MICHAEL
-
公开(公告)号：DE3334056A1
公开(公告)日：1985-04-18
申请号：DE3334056
申请日：1983-09-21
Applicant: BASF AG
Inventor： RINGSDORF HELMUT PROF DR , KREUDER WILLI , NEUMANN PETER DR , ETZBACH KARL-HEINZ DR , STERZEL HANS-JOSEF DR
IPC: C08G77/38 , C09B47/04 , C09B67/00 , C09K19/32 , C09K19/38 , C09K19/40 , C08G85/00 , C08G63/46 , C08G69/00 , C08G18/83 , C08F20/00 , C09K3/34
Abstract: Polymers contain, as mesogenic groups, groups which produce a discotic phase, and furthermore can contain pleochroic dyes. The novel polymers possess novel properties, and combinations of properties, which the conventional polymers which form liquid-crystalline phases do not possess. The polymers can be used in electro-optical displays, in storage elements, as electrically or photo-electrically conductive polymers and as strain sensors.
-
-
-
-
-
-
-
-
-
Search Results
20
records
(took 0.021 seconds)
