公开(公告)号：DE2948016A1

公开(公告)日：1981-06-11

申请号：DE2948016

申请日：1979-11-29

Applicant: BASF AG

Inventor： ZIMMERMANN NORBERT ,  DAUBACH EWALD DIPL CHEM DR ,  BELDE HORST ING GRAD

IPC: C09B67/48 ,  C09B29/08 ,  C09B67/00 ,  C09B67/10

公开(公告)号：DE2933896A1

公开(公告)日：1981-03-12

申请号：DE2933896

申请日：1979-08-22

Applicant: BASF AG

Inventor： ROTH KARL ,  SAPPOK REINHARD DIPL CHEM DR ,  BELDE HORST ,  DAUBACH EWALD DIPL CHEM DR

IPC: C09B67/12 ,  C09B67/00 ,  C09B1/00

Abstract: Copper phthalocyanine (CuPc) was converted to a form suitable for colouring use by grinding the crude prod. until it consisted of agglomerates composed of particles whose mean size was 0.05 microns or less, suspending the ground material in the 0.8-10 fold (pref. 2-8 fold) amt. by wt. of an organic solvent (1), and heating to 20-180 deg.C (pref. 50-150 deg.C) until the desired colouring strength was attained. Crude CuPc-prepd. e.g. by fusing a mixt. of o-phthalodinitrile and CuCl in anhyd. Na2SO4, and freed from salt by H2O treatment prior to grinding (10-40 hours in a ball mill, pref. 25-35 hours) - has a chlorine content of 2-4 wt.%. (1) may be amino-2-8C-alkanols (pref. 3-aminopropanol), mono- or bi-nuclear 6-membered aromatic nitrogen heterocycles (pref. pyridine), N,N-di(1-8C alkyl) amides of 1-3C carboxylic acids, N-methyl(or cyclohexyl)pyrrolid-2-one, or mixts. of these solvents. Depending on the organic solvent used, the pigment form was isolated from the mixt. either by direct filtration at 80-120 deg.C (or after treatment with H2O or aq. mineral acid) or by first removing the solvent by steam distn. and then filtering the resulting aq. suspension. The CuPc pigment forms have excellent dispersibility and high colouring strength.

公开(公告)号：DE2526688A1

公开(公告)日：1977-01-13

申请号：DE2526688

申请日：1975-06-14

Applicant: BASF AG

Inventor： MUELLER RICHARD DIPL CHEM DR ,  DAUBACH EWALD DIPL CHEM DR ,  SCHWAB HERMANN DIPL CHEM DR ,  MEYER GUENTER DIPL CHEM DR

IPC: D06P3/36 ,  D06P1/16 ,  D06P5/00

公开(公告)号：DE2327579A1

公开(公告)日：1975-01-02

申请号：DE2327579

申请日：1973-05-30

Applicant: BASF AG

Inventor： DAUBACH EWALD DIPL CHEM DR ,  KLINGSHIRN WERNER DIPL CHEM DR ,  BELDE HORST

IPC: C08G14/08

Abstract: Light-fast condensates are prepd. by (i) condensing 0.5-1.5 mol. pts. of >=1 phenolsulphonic acid, free from uncondensed rings, with 0.8-2 mol. pts. urea and 1-3 mol. pts. HCHO or HCHO-yielding cpds., (ii) neutralising reaction mixt. with a base, (iii) after condensation with 0.3-1.5 mol. pts. of at least one mono- to deca-hydric (2-10)C alcohol and 0.5-1.5 mol. pts. HCHO or HCHO-yielding cpd. and (iv) neutralising. Condensates are used as dispersants pref. for pigments/dyes, partic. those sensitive to reduction, e.g. dispersion dyes for dyeing polyester fabrics; also in leather and textile industry.