Dioxazine dyes
    1.
    发明授权
    Dioxazine dyes 失效
    二恶嗪染料

    公开(公告)号:US3926987A

    公开(公告)日:1975-12-16

    申请号:US49378074

    申请日:1974-08-01

    Applicant: BASF AG

    CPC classification number: C09B19/02 C09B57/08

    Abstract: IN WHICH A is o-phenylene, o-naphthylene or peri-naphthylene which may bear substituents which do not impart solubility in water; X is chloro or bromo; and Y is halogen, phenoxy alkyl or alkoxy of one to four carbon atoms. These dioxazine dyes are pigments and give violet colorations for example in surface coatings or plastics; they have excellent fastness to light, weathering and solvents. The dyes are also stable to high temperature.
    A dioxazine dye of the formula:

    Abstract translation: 下式的二恶嗪染料:

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