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    METHOD FOR CONVERTING PERYLEN-3,4:9,10-TETRACARBOXYLIC ACID DIIMIDES INTO A FORM SUITABLE FOR USE AS A FLUORESCENT DYE
    31.
    发明专利
    METHOD FOR CONVERTING PERYLEN-3,4:9,10-TETRACARBOXYLIC ACID DIIMIDES INTO A FORM SUITABLE FOR USE AS A FLUORESCENT DYE 未知

    公开(公告)号：AU2003236705A1

    公开(公告)日：2003-12-31

    申请号：AU2003236705

    申请日：2003-06-06

    Applicant: BASF AG

    Inventor： ERK PETER ,  SCHAFER SIMONE ,  BOHM ARNO ,  BLASCHKA PETER ,  ARMS HARALD ,  HELFER WILLI

    IPC: C09B67/10 ,  C09B67/48 ,  C09B5/62

    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.

    Transparent greenish yellow pyrazolone pigments
    33.
    发明专利
    Transparent greenish yellow pyrazolone pigments 未知

    公开(公告)号：AU1917102A

    公开(公告)日：2002-06-24

    申请号：AU1917102

    申请日：2001-12-11

    Applicant: BASF AG

    Inventor： BLASCHKA PETER ,  SMEYTS GUNTER ,  GUNTHERT PAUL

    IPC: C09B29/50 ,  C09B63/00

    Abstract: The invention relates to pyrazolone pigments of general formula (I), wherein the radicals R , R , R and R independently represent hydrogen, chlorine, methyl or ethyl, whereby at least one of the radicals R -R is different from hydrogen. The inventive pigments are characterised by a CIELAB colour angle of 80-85°, a chroma of 58-62 and a luminosity >=87 (measuring angle 45°, standard illuminant D65).

    34.
    发明专利
    未知

    公开(公告)号：DE59703671D1

    公开(公告)日：2001-07-05

    申请号：DE59703671

    申请日：1997-01-09

    Applicant: BASF AG

    Inventor： HENNING GEORG ,  BLASCHKA PETER ,  BOEHM ARNO

    IPC: C09B5/62 ,  C09B67/08 ,  C09B67/22 ,  C09D5/02 ,  C09D7/00

    Abstract: PCT No. PCT/EP97/00064 Sec. 371 Date Jul. 16, 1998 Sec. 102(e) Date Jul. 16, 1998 PCT Filed Jan. 9, 1997 PCT Pub. No. WO97/26301 PCT Pub. Date Jul. 24, 1997A N,N'-dimethylperylene-3,4,9,10-tetracarboxylic diimide pigment suitable for aqueous basecoats is obtainable by coating the diimide, suspended in an aqueous medium, with a carboxyl-carrying resin in the presence of 3,4-dicarboximidoperylene-9-sulfonic acid or salts thereof and with a C8-C8-alkyl- or-alkenylamine, isolating and drying the coated dimide and then subjecting it to dry milling.

    37.
    发明专利
    未知

    公开(公告)号：DE59605264D1

    公开(公告)日：2000-06-21

    申请号：DE59605264

    申请日：1996-12-11

    Applicant: BASF AG

    Inventor： BOEHM ARNO ,  ARMS HARALD ,  HENNING GEORG ,  BLASCHKA PETER

    IPC: C07D471/06 ,  C07C65/15 ,  C07C65/19 ,  C07D493/06 ,  C09B3/14 ,  C09B5/02 ,  C09B5/62 ,  C09D7/00 ,  C09D11/037 ,  C09K11/06

    Abstract: PCT No. PCT/EP96/05525 Sec. 371 Date Jun. 18, 1998 Sec. 102(e) Date Jun. 18, 1998 PCT Filed Dec. 11, 1996 PCT Pub. No. WO97/22608 PCT Pub. Date Jun. 26, 19971,7-Disubstituted perylene-3,4,9,10-tetracarboxylic dianhydrides I and perylere-3,4,9,10-tetracarboxylic acids Ia where L1, L2 independently of one another are 1,2-ethylene, 1,2-ethenylene and 1,2-ethynylene, and R1, R2 independently of one another are hydrogen or substituted or unsubstituted C1-C30-alkyl, their preparation and use as pigments, laser dyes and precursors for preparing fluorescent dyes, polymeric colorants, pigments and pigment additives, and also 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic diimides (VI) as their intermediates.

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