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    31.
    发明专利
    未知

    公开(公告)号：DE59006210D1

    公开(公告)日：1994-07-28

    申请号：DE59006210

    申请日：1990-10-15

    Applicant: BASF AG

    Inventor： SCHMITT MICHAEL DR ,  ALBERT BERNHARD DR ,  BROSIUS SIBYLLE DR ,  SCHOMANN KLAUS DIETER DR ,  KUPPELMAIER HARALD DR

    IPC: B41M5/26 ,  C07C233/10 ,  C09B57/00 ,  G03C1/72 ,  G11B7/24

    Abstract: Azulene squaric acid dyes containing amide groups, of the formula … … in which …… L denotes C1-C12-alkylene which is optionally substituted by phenyl, … R and R independently of one another denote hydrogen, optionally substituted C1-C20-alkyl, C5-C7-cycloalkyl, optionally substituted phenyl, 2,2,6,6-tetramethylpiperidin-4-yl or cyclohexylaminocarbonyl and … R , R , R and R independently of one another denote hydrogen or optionally substituted C1-C12-alkyl, … with the proviso that if R denotes hydrogen the ring positions of the substituents CH2-L-CO-NR R and R on one or both azulene rings can also be interchanged with one another within an azulene ring, their intermediate products and an optical recording medium which contains the novel dyes.

    35.
    发明专利
    未知

    公开(公告)号：DE3766194D1

    公开(公告)日：1990-12-20

    申请号：DE3766194

    申请日：1987-08-29

    Applicant: BASF AG

    Inventor： ALBERT BERNHARD DR ,  ETZBACH KARL-HEINZ DR ,  SENS RUEDIGER DR

    IPC: B41M5/385 ,  B41M5/26 ,  B41M5/388 ,  B41M5/39 ,  C09B23/14 ,  C09B29/03 ,  C09B29/033 ,  C09D5/26 ,  D06P5/13

    Abstract: Dyes are transferred from a carrier by sublimation/vaporization to plastic-coated papers by a process in which the dyes used are of the general formula (I) (I) where A is D-N=N- or R1 and R2 are each hydrogen, alkyl, alkoxy, alkylthio or halogen and R1 and R together may furthermore form a 5-membered or 6-membered heterocyclic ring, and R and R' independently of one another are each hydrogen, phenyl which is unsubstituted or substituted by methyl or methoxy, or C5- or C6-cycloalkyl or C1-C6-alkyl which is unsubstituted or substituted by C1-C4-alkoxy, C1-C4-alkoxycarbonyl, C2-C5-alkanoyloxy, C1-C4-alkoxycarbonyloxy, C1-C4-alkoxy-C2-or C3-alkoxycarbonyloxy, hydroxyl, cyano, halogen, phenyl or C5- or C6-cycloalkyl, or is a 5-membered or 6-membered saturated heterocyclic ring where D is a radical of a diazo component of the thiophene, thiazole, isothiazole or 1,2,4-thiadiazole series and R3 is hydrogen or CN. In the process, the dyes (I) give strong dyeings which have good light fastness and are resistant to chemical substances.

    36.
    发明专利
    未知

    公开(公告)号：DE3817451A1

    公开(公告)日：1989-11-30

    申请号：DE3817451

    申请日：1988-05-21

    Applicant: BASF AG

    Inventor： ALBERT BERNHARD DR ,  WAGENBLAST GERHARD DR ,  HAUSER PETER DR

    IPC: G11C13/04 ,  B41M5/26 ,  G11B7/00 ,  G11B7/004 ,  G11B7/125

    Abstract: Information is stored in an optical recording medium containing a transparent base and a radiation-sensitive, dye-containing layer by means of a semiconductor write laser and read back by means of a semiconductor read laser, the wavelength of the write laser being less than that of the read laser. Examples of the medium and the wavelengths are given.

    37.
    发明专利
    未知

    公开(公告)号：DE3716734A1

    公开(公告)日：1988-12-01

    申请号：DE3716734

    申请日：1987-05-19

    Applicant: BASF AG

    Inventor： ALBERT BERNHARD DR ,  HAUSER PETER DR ,  ACKER MICHAEL DR ,  SCHROTT WOLFGANG DR ,  WAGENBLAST GERHARD DR

    IPC: G11B7/24 ,  B41M5/26 ,  G11B7/246 ,  G11B7/258

    Abstract: Optical recording medium containing a transparent substrate, a dye-containing layer sensitive to laser light and a reflective layer containing a silicon-phthalocyanine derivative of the formula … … in which… R denotes hydrogen, alkyl, alkoxy, halogen or trialkylsilyl,… n denotes the number 1, 2, 3 or 4 and… A and B are identical or different and independently of one another each denote alkyl, halogen, optionally substituted alkoxy or trialkylsilyloxy.

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