POLYHALOCOPPER PHTHALOCYANINE PIGMENTS

    公开(公告)号:AU595393B2

    公开(公告)日:1990-03-29

    申请号:AU8008587

    申请日:1987-10-23

    Applicant: BASF AG

    Abstract: Polyhalocopper phthalocyanine pigments of high color strength are prepared by recrystallizing the finely divided agglomerated crude pigment in a heterogeneous aqueous organic phase at elevated temperatures by a process in which the aqueous organic phase used is a heterogeneous mixture of an aliphatic ketone having a total of 3 to 9 carbon atoms and water. The process gives the pigments in the form of spherical granules which are dust-free or have a low dust content. The pigments give deep, brilliant colorations of pure hues.

    Production of polyhalogenated copper phthalocyanines having high colour strength

    公开(公告)号:GB1088736A

    公开(公告)日:1967-10-25

    申请号:GB3672966

    申请日:1966-08-17

    Applicant: BASF AG

    Abstract: Polyhalocopper phthalocyanines having high colour strength are obtained by heating a crude copper phthalocyanine pigment containing ten to sixteen halogen atoms at 60 DEG to 200 DEG C. in the presence of about 0.2 to 10 times the weight of an aromatic compound which is in liquid form under the conditions of treatment and is free from carboxylic and sulphonic groups and has an OH group attached to the nucleus, preferably in the presence of water. Specified aromatic compounds are phenols and naphthols. Specified phthalocyanines are polychloro and polychlorobromo copper phthalocyanines having ten to sixteen halogen atoms and mixtures of different polyhalo copper phthalocyanines. The treatment may be carried out in the presence of additional solvents which are inert under the reaction conditions and are not wholly miscible with water. Examples are given for treating polychloro- and polychlorobromo-phthalocyanine.

    14.
    发明专利
    未知

    公开(公告)号:FR1333972A

    公开(公告)日:1963-08-02

    申请号:FR903366

    申请日:1962-07-09

    Applicant: BASF AG

    Inventor: SCHMEIDL KARL

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