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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
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.
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公开(公告)号:AU8199301A
公开(公告)日:2002-01-30
申请号:AU8199301
申请日:2001-07-18
Applicant: BASF AG
Inventor: BECKER DIETMAR , BECK GEORG , BENTZ STEFAN , BEST WOLFGANG , ERK PETER , ETZRODT GUNTER , KONEMANN MARTIN , RIEGER REINHOLD , UNTERFORSTHUBER KLAUS
IPC: G01J3/46 , B01F11/00 , B01F11/02 , B01F13/10 , B01F15/00 , B01F15/04 , B01F15/06 , C09D17/00 , G01N1/10 , G01N1/28 , G01N1/36 , G01N21/25 , G01N21/27 , G01N21/83 , G01N35/00 , G01N35/02 , G01N35/10
Abstract: The invention relates to a method for carrying out the automated preparation and characterization of liquid multi-constituent systems comprised of at least two, preferably at least three, constituents. The inventive method involves the automated preparation of a mixture by combining at least two, preferably at least three, constituents in a vessel, whereby at least one constituent is dosed into the vessel in an automated manner. The method also involves the automated homogenization of the mixture followed by an automated measuring and evaluation. The device for implementing said method comprises at least one dosing station (5), a closing station (7), a homogenizing station (9), a measuring station (13) for determining formulation properties, and an evaluation unit.
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