Dye nitrates
    1.
    发明授权
    Dye nitrates 失效
    DYE NITRATES

    公开(公告)号:US3682979A

    公开(公告)日:1972-08-08

    申请号:US3682979D

    申请日:1970-05-18

    Applicant: BASF AG

    CPC classification number: C09B11/12 C09B69/06

    Abstract: Nitrates of triarylmethane dyes useful in printing inks, pastes for ball point pens, inks, copying papers, transparent coatings, etc.

    Abstract translation: 可用于印刷油墨的三芳基甲烷染料硝酸盐,圆珠笔油墨,复印纸,透明涂料等。

    Converting Crude Polyhalocopper Phthalocyanines into a Pigment Form

    公开(公告)号:GB1153897A

    公开(公告)日:1969-05-29

    申请号:GB4357766

    申请日:1966-09-29

    Applicant: BASF AG

    Abstract: 1,153,897. Phthalocyanine pigments. BADISCHE ANILIN- & SODA FABRIK A.G. 29 Sept., 1966 [30 Sept., 1965; 9 April, 1966(2)], No. 43577/66. Heading C4P. Crude polyhalo-copper phthalocyanines are converted into yellowish-green pigments by treatment with sulphuric acid and an organic liquid, as hereinafter defined, in the presence of 0À1 to 2À0 parts by weight of nitroxylsulphuric acid (or the corresponding amount of a salt of nitrous acid), or of 0À1 to 0À3 part by weight of 100% nitric acid per one part by weight of dye. The organic liquid is defined as any organic solvent, liquid at the working temperatures, which is not attacked by nitroxylsulphuric acid. Specified organic liquids are di- and trichlorobenzenes, nitrobenzene, chloroform, carbon tetrachloride and napththalene. The nitroxylsulphuric and nitric acids may be formed in situ by the addition of alkali metal or alkaline earth metal nitrates or nitrites to the conversion mixture. Mixtures of the nitric acid, nitroxylsulphuric acid and nitrite may also be used.

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