11.
    发明专利
    未知

    公开(公告)号:DE59610511D1

    公开(公告)日:2003-07-10

    申请号:DE59610511

    申请日:1996-12-11

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/05519 Sec. 371 Date Jun. 18, 1998 Sec. 102(e) Date Jun. 18, 1998 PCT Filed Dec. 11, 1996 PCT Pub. No. WO97/22607 PCT Pub. Date Jun. 26, 19971,7-Disubstituted perylene-3,4,9,10-tetracarboxylic dianhydrides I and perylene-3,4,9,10-tetracarboxylic acids Ia where R is substituted or unsubstituted aryloxy, arylthio, hetaryloxy or hetarylthio, their preparation and use as pigments, laser dyes and precursors for preparing fluorescent dyes, polymeric colorants, pigments and pigment additives, and 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic diimides (VI) as intermediates thereof.

    13.
    发明专利
    未知

    公开(公告)号:DE19601752A1

    公开(公告)日:1997-07-24

    申请号:DE19601752

    申请日:1996-01-19

    Applicant: BASF AG

    Abstract: The disclosure relates to a N,N'-dimethylperylene-3,4,9,10-tetracarboxylic acid diimide pigment suitable for water-based paints and obtainable by: coating the diimide suspended in an aqueous medium with a resin containing carboxyl groups in the presence of perylene-3,4-dicarboxylic acid-imide-9-sulphonic acid or its salts and of a C8-C18 alkyl- or alkenyl amine; isolating, drying and subsequently dry-crushing the coated diimide.

    14.
    发明专利
    未知

    公开(公告)号:DE50301761D1

    公开(公告)日:2005-12-29

    申请号:DE50301761

    申请日:2003-06-06

    Applicant: BASF AG

    Abstract: A process for converting perylene-3,4:9,10-tetracarboximides of the general formula I in which R1 and R2 are each unbranched, branched or cyclic C1-C8-alkyl to a form suitable for use as fluorescent dyes, which comprises a) dissolving or suspending the perylene-3,4:9,10-tetracarboximides whose molecules have a molecular volume of ≦̸230 Å3 in an organic or inorganic solvent at from 0 to 250° C., b1) cooling the solution obtained in step a) to or below the crystallization temperature and, in the case of an organic solvent, if desired at the same time removing excess solvent until the first crystals form, or, in the case of an inorganic solvent, adding water or dilute aqueous solutions of the solvent until the first crystals form, and maintaining the solution at this temperature for further crystallization or b2) cooling the suspension obtained in step a) to or below the crystallization temperature when the temperature in step a) was above the crystallization temperature, and maintaining the suspension at this temperature for further crystallization, c) isolating the solvate crystals formed in step b) and d) then removing the solvent from the solvate crystals, and also novel crystalline forms of perylene-3,4:9,10-tetracarboxylic diimides.

    18.
    发明专利
    未知

    公开(公告)号:DE19547210A1

    公开(公告)日:1997-06-19

    申请号:DE19547210

    申请日:1995-12-18

    Applicant: BASF AG

    Abstract: Disclosed are 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic acid dianhydrides (I) and perylene-3,4,9,10-tetracarboxylic acids (Ia) in which the variables have the following meanings: L , L independently of one another represent 1,2 ethylene, 1,2-ethenylene and 1,2-ethinylene; R , R independently of one another represent hydrogen or optionally substituted C1-C30 alkyl. Also disclosed are the production of these compounds and their use as pigments, laser dyes and precursors for the production of fluorescent dyes, polymer colorants, pigments and pigment additives, and 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic acid diimides (VI) as intermediate products for these compounds.

    19.
    发明专利
    未知

    公开(公告)号:DE102004054303A1

    公开(公告)日:2006-05-11

    申请号:DE102004054303

    申请日:2004-11-09

    Applicant: BASF AG

    Abstract: A process for preparing perylene-3,4-dicarboximides which bear a sterically demanding substituent on the imide nitrogen atom by reacting a perylene-3,4:9,10-tetracarboxylic dianhydride with a sterically hindered primary amine in a substantially anhydrous reaction medium, which comprises undertaking the reaction in the presence of a tertiary amine, of a solvent based on a cyclic imine or amide and of a Lewis acid as a catalyst.

    20.
    发明专利
    未知

    公开(公告)号:DE102004041604A1

    公开(公告)日:2006-03-02

    申请号:DE102004041604

    申请日:2004-08-26

    Applicant: BASF AG

    Abstract: A process for preparing quaterrylene-3,4:13,14-tetracarboximides of the general formula I in which R, R′ are each independently hydrogen or optionally substituted C1-C30-alkyl, C5-C8-cycloalkyl or aryl or hetaryl; which comprises reacting a perylene-3,4-dicarboximide of the general formula IIa in the presence of a base-stable, high-boiling, organic solvent and of an alkali metal base or alkaline earth metal base, with a perylene-3,4-dicarboximide of the general formula IIb in which X is hydrogen, bromine or chlorine.

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