2.
    发明专利
    未知

    公开(公告)号:DE1259895B

    公开(公告)日:1968-02-01

    申请号:DEB0075831

    申请日:1964-03-10

    Applicant: BASF AG

    Inventor: KRANZ DR JOACHIM

    4.
    发明专利
    未知

    公开(公告)号:DE1242180B

    公开(公告)日:1967-06-15

    申请号:DEB0077738

    申请日:1964-07-18

    Applicant: BASF AG

    Abstract: Polyhalogenated phthalocyanines containing 10-16 halogen atoms are conditioned by heating them at 60-220 DEG C. with 1-20 times their weight of an o-nitrophenol. In a preformed process a moist press-cake of the polyhalogenated phthalocyanin is heated with 2-4 times its weight of nitrophenol at 100-150 DEG C. in a closed vessel; after the treatment the nitrophenol may be converted to its water-soluble sodium salt and the pigment filtered off. The specified nitrophenols are o-nitrophenol and mixtures thereof with p-nitrophenol, as well as o-nitro-p-cresol and dinitrophenols. The halogen atoms may be Cl and/or Br. Examples are given.

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