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    41.
    发明专利
    未知

    公开(公告)号：DE3876926D1

    公开(公告)日：1993-02-04

    申请号：DE3876926

    申请日：1988-10-06

    Applicant: BASF AG

    Inventor： HAHN ERWIN DR ,  HANSEN GUENTER DR ,  ETZBACH KARL-HEINZ DR ,  REICHELT HELMUT DR ,  SCHEFCZIK ERNST DR ,  DEGEN HELMUT ,  KRALLMANN REINHOLD ,  WAGENBLAST GERHARD DR

    IPC: C09B29/00 ,  C09B29/033 ,  C09B67/22

    Abstract: Marine blue and black dye mixts. contg. one or more thiophenazo dyes of formula (I) are claimed, in which R1 = formyl, CN or phenylsulphonyl; R2 = halogen, 1-8C alkoxy, opt. substd. phenoxy, 1-6C alkylthio, phenylthio, 1-6C alkylsulphonyl or phenylsulphonyl; R3 = CN, 1-6C alkoxycarbonyl whose alkyl chain is opt. interrupted by one or more O atoms, carbamoyl or 1-4C mono- or dialkylcarbamoyl; R4 and R5 (same or different) = 1-4C alkyl which may be substd. by OH, 1-4C alkoxy, CN, 1-4C alkanoyloxy, 1-4C alkoxycarbonyloxy or 1-4C alkylaminocarbonyloxy; X = H, 1-4C alkyl, 1-4C alkoxy, Cl, Br or -NH-CO-R6 in which R6 = 1-4C alkyl which may be substd. by 1-4C alkoxy, phenoxy, CN, OH, Cl or 1-4C alkanoyloxy, or a phenoxy gp. which is opt. substd. by 1-4C alkoxy, and Y = H, 1-4C alkyl or 1-4C alkoxy; and one or more dyes (II) having an absorption max. at a wavelength of 390-520 nm, the proportion of (I) on total (I)+(II) being 60-99 wt.%.

    43.
    发明专利
    未知

    公开(公告)号：DE3865478D1

    公开(公告)日：1991-11-21

    申请号：DE3865478

    申请日：1988-03-05

    Applicant: BASF AG

    Inventor： SPANG PETER DR ,  NEUMANN PETER DR ,  WAGENBLAST GERHARD DR ,  TRAUTH HUBERT

    IPC: C07D233/90 ,  C07D235/20 ,  C07D235/24 ,  C08G18/30 ,  C08G18/38 ,  C08K5/34 ,  C08K5/3442 ,  C08K5/3445 ,  C08K5/3447 ,  C08L75/00 ,  C08L75/04 ,  C08L101/00

    Abstract: Light-stabilised polymer (I) contains cpd(s). of formula (II) as stabiliser(s) where R1, R2 = Ph or heteroaryl, opt. substd. with 1-12C alkyl or alkoxy, PhO, Hal or CF3, and the other R1 or R2 = H, 1-12C alkyl, 7-9C phenalkyl or COOR5, or -CR1=C2- is a condensed benzene ring, opt. substd. with OH, Hal, 1-12C alkyl or alkoxy, COOR5, COR5, CONHR5, COOH, OCOR5, NHCOR5, SO2R5 or CN; R5 = 1-12C alkyl; or 5-8C cycloalkyl, Ph or 7-10C phenalkyl (opt. 1-4C alkyl-substd.); R3, R4 = H, or one R3 or R4 = 1-4C alkyl or 7-9C phenalkyl; n = 1 or 2. If n = 1, X = Ph, naphthyl, or 5- or 6-membered aromatic heterocycle, opt. condensed with a benzene ring; the residues are opt. substd. with 1-12C alkoxy, OCH2O, OC2H4O, CF3, OH, Hal, SR5, COR5, COOR5, OCOR5, COOH, CN, CONHR5, NHR5, N(R5)2 or NHCOR5; If n = 2, X = C6H4 or C10H6, opt. substd. with 1-12C alkyl or alkoxy or Hal, or C6H4YC6H4, Y = (CH2)m, CO, CO(CH2)pCO, OCO(CH2)pCOO, NHCO(CH2)pCONH, -O-, SO2, OCOC6H4COO or NHCOC6H4CONH; m = 1, 2 or 3; p = 0 or 1-8. Imidazole-2-carboxylic acid anhydrides of formula (III) are claimed. R = C6H4R9 or -CR=CR- = T-C6H3 (condensed); R8 = 1-12C alkyl or alkoxy or alkoxycarbonyl, PhO, 7-9C phenalkyl, CF3, N,N-di(1-6C)alkylamino, 2-12C alkanoyl- or alkanoyloxy-amino, 1-12C alkylcarbonyl, phenalkanoyloxy, PhCOO, PhCO, CN, OCH2O, or OC2H4O; R9 = 1-12C alkyl, 1-4C alkoxy, Cl or H; T = H, 1-4C alkyl or alkoxy, CF3, Ph, 7-9C phenalkyl or Cl; q = 1 or 2.

    44.
    发明专利
    未知

    公开(公告)号：DE3704146A1

    公开(公告)日：1988-09-29

    申请号：DE3704146

    申请日：1987-02-11

    Applicant: BASF AG

    Inventor： WAGENBLAST GERHARD DR ,  ETZBACH KARL-HEINZ DR ,  HISGEN BERND DR

    IPC: B41M5/36 ,  G11B7/00 ,  G11B7/0055 ,  G11B7/013 ,  G11B7/12 ,  G11B7/24 ,  G11B7/26

    Abstract: Optical laser writing and reading method, in which the thermally variable recording layer, containing liquid-crystal bonds oriented in a homogeneously planar manner, of a multilayer sheet-like recording material is inscribed by means of a writing laser beam with analog or digital data in the form of thermally varied regions, after which the written data are read by means of a reading laser beam. In this method - the light transmitted or reflected by the recording material is analysed, - the data is read out by determining the optical polarisation contrast between the thermally varied and the non-varied regions and/or use is made for this of the interference of light waves which form from the laser light waves with Gaussian intensity distribution as a result of the different phase velocity of the light in the centre of thermally varied regions on the one hand and of their thermally non-varied environment on the other hand, - use is made of a recording layer which constitutes an optically uniaxial medium, to the refractive indices n1 (perpendicular to the plane of the recording layer), n2 (in the plane of the recording layer and perpendicular to the major optical axis), n3 (in the plane of the recording layer and parallel to the major optical axis) and niso (refractive index of the thermally varied regions), with niso = 1/3(n1 + n2 + n3), of light of the wavelength lambda = 780 nm, of which apply the relations n1 = n2 n3 and | DELTA n| = |n3-n2| > 0.05 or | DELTA n| = |niso-n2| > 0.05 or alternatively | DELTA n| = |niso-n3| > 0.05, and which has a thickness d of 0.05 lambda '/| DELTA n| to 0.6 lambda '/| DELTA n|, lambda ' = wavelength of the reading laser light, - the reading laser beam is guided over the recording material in a relative movement in the direction of the major optical axis of the recording layer or perpendicularly to this and the reading laser beam is at the same time so radiated that, when it strikes the recording layer, the plane of its polarisation @ forms with its major optical axis an angle of 0 DEG +/- 10 DEG , 45 DEG +/- 10 DEG or 90 DEG +/- 10 DEG , and - in the event that the transmitted light is analysed, a laser beam of light of the wavelength lambda ' of 1.66 d | DELTA n| to 5 d | DELTA n| is used and, in the event that the reflected light is analysed, a laser beam of light of the wavelength lambda ' of 3.33 d | DELTA n| to 20 d | DELTA n| is used. The invention also relates to new optical laser writing and reading devices for carrying out this method and new multilayer optical laser data plates, the thermally variable recording layer of which contains liquid-crystal bonds in a homogeneously planar and radial or homogeneously planar and tangential orientation.

    48.
    发明专利
    未知

    公开(公告)号：DE59206734D1

    公开(公告)日：1996-08-14

    申请号：DE59206734

    申请日：1992-10-27

    Applicant: BASF AG

    Inventor： BACH VOLKER DR ,  ETZBACH KARL-HEINZ DR ,  SIEMENSMEYER KARL DR ,  WAGENBLAST GERHARD DR

    IPC: C03B19/00 ,  C09K19/02 ,  G02F1/137

    Abstract: The process according to the invention is a process for the preparation of aligned, ferroelectrically or ferrielectrically or antiferroelectrically ordered materials which solidify in a glass-like manner. In these layer structures which are ordered in a polar manner, the molecular dipole moments are not compensated, are partially compensated or are fully compensated, so that a dipole moment which corresponds to the degree of compensation is apparent from the outside.

    50.
    发明专利
    未知

    公开(公告)号：DE4401911A1

    公开(公告)日：1995-08-03

    申请号：DE4401911

    申请日：1994-01-24

    Applicant: BASF AG

    Inventor： BECKMANN STEFAN DR ,  ETZBACH KARL-HEINZ DR ,  SENS RUEDIGER DR ,  WAGENBLAST GERHARD DR

    IPC: C07D277/50 ,  C07D333/38 ,  C08F246/00 ,  C09B69/10 ,  G02F1/361 ,  C07D401/04 ,  C07D409/04 ,  C07D521/00 ,  C09B29/08 ,  G02F1/35

    Abstract: The invention relates to the use in non-linear optics of azo dyes of formula I and the use of polymers containing azo dyes which include as characteristic monomer units bivalent groups derived from an azo dye of formula (I) wherein: D represents the residue of a diazo component derived from an aniline or from a five-membered aromatic heterocyclic amine whose heterocyclic ring includes one to three heteroatoms chosen from the group nitrogen, oxygen and sulphur and which can be anellated by a benzene, thiophene, pyridine or pyrimidine ring; R and R represent, independently of each other, hydrogen, C1-C6-alkyl or C5-C7-cycloalkyl; and R and R represent, independently of each other, hydrogen or C1-C6 alkyl which can be substituted by hydroxyl, acryloyloxyl or methacryloyloxyl, at least one of the two groups R and R not being hydrogen.

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