21.
    发明专利
    未知

    公开(公告)号:DE3935526A1

    公开(公告)日:1991-05-02

    申请号:DE3935526

    申请日:1989-10-25

    Applicant: BASF AG

    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.

    22.
    发明专利
    未知

    公开(公告)号:DE3935524A1

    公开(公告)日:1991-05-02

    申请号:DE3935524

    申请日:1989-10-25

    Applicant: BASF AG

    Abstract: Azulene squaric acid dyes containing ester groups, of the formula in which L denotes C1-C12-alkylene which is optionally substituted by phenyl, R denotes C1-C12-alkyl, mono- or polyunsaturated C1-C12-alkenyl, which can be substituted by phenyl, C5-C7-cycloalkyl, C5-C7-cycloalkenyl, optionally substituted phenyl, pyrrolyl, furanyl, thienyl or pyridyl 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-O-CO-R and R on one or both azulene rings can also be interchanged with one another within an azulene ring, their intermediates and an optical recording medium which contains the novel dyes.

    Electroconductive furan, thiophene, pyrrole or aniline polymer prodn. - by oxidative polymerisation using indolizine sulphonic acid as conductive salt

    公开(公告)号:DE3929383A1

    公开(公告)日:1991-03-07

    申请号:DE3929383

    申请日:1989-09-05

    Applicant: BASF AG

    Abstract: In the prodn. of electroconductive homo- and copolymers (I) from 5-membered N-, O- or S-heterocyclic cpds. with a conjugated pi-electron system and aniline cpds. by polymerisation in an electrolyte, the novelty is that polymerisation is carried out in the presence of an indolizine sulphonic acid (deriv.) (II). The claims also cover (I) prepd. by this method. The-prepn. of (II) is described e.g. in F.J. Swinbourne, 'Advances in Heterocyclic Chemistry', 1976, vol. 23, 104-170. Polymerisation is carried out by anodic oxidn. in an electrolyte or chemically using an oxidant, opt. in the presence of an (in)organic substrate. USE/ADVANTAGE - (I) are claimed for use as electrode material for prim. and sec. batteries and as electrical conductors. (I) have high electrical conductivity, high mechanical properties and better electrochemical discharge capacity than usual. (II) acts as conductive salt.

    Vat dyes
    25.
    发明专利
    Vat dyes 未知

    公开(公告)号:DE4436386A1

    公开(公告)日:1995-04-27

    申请号:DE4436386

    申请日:1994-10-12

    Applicant: BASF AG

    Abstract: Vat dyes obtainable by a) halogenation of dibenzanthrone with bromine in the presence of chlorosulphonic acid and a halogenation catalyst up to a bromine content of 26 to 32% by weight and a chlorine content of 1 to 5% by weight, and b) condensation of the isolated halogenation product with 1-aminoanthraquinone in a molar ratio of 1 : 2 to 1 : 2.5 in the presence of an inert solvent, the concentration of halogenated dibenzanthrone and 1-aminoanthraquinone together being at least 200 g/l of solvent, and their use for dyeing or printing cellulosic textile material.

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