Carboxylic acid type water-soluble sulfur dye
    4.
    发明授权
    Carboxylic acid type water-soluble sulfur dye 有权
    羧酸型水溶性硫化染料

    公开(公告)号:US09193696B2

    公开(公告)日:2015-11-24

    申请号:US14368092

    申请日:2012-11-30

    CPC classification number: C07D251/50 C07D251/38 C07D251/44 C09B49/00 D06P1/30

    Abstract: The present invention provides a group of water-soluble sulfur dye having carboxyl groups. For the kind of dye, a sulfur dye is first reduced to a leuco compound by sodium sulfide, and the leuco compound reacts with an active compound containing carboxyl groups to obtain a water-soluble sulfur dye containing the carboxyl group. The water-soluble sulfur dye provided by the present invention is applicable to dying of cotton, wool, silk, and leather. Being both water-soluble and carboxyl group reactive, the product has a simple application process and desirable color fastness, thereby having broad application prospects.

    Abstract translation: 本发明提供一组具有羧基的水溶性硫化染料。 对于这种染料,硫化钠首先通过硫化钠还原成无色化合物,并且无色化合物与含有羧基的活性化合物反应,得到含有羧基的水溶性硫化染料。 本发明提供的水溶性硫化染料适用于棉,羊毛,丝绸和皮革的染色。 既具有水溶性又具有羧基反应性,产品使用简便,色牢度好,具有广泛的应用前景。

    Processes for producing 2,4,6-tris(hydroxyphenyl amino)-1,3,5-triazines and 2,4,6-tris(substituted phenylamino)-1,3,5-triazines
    7.
    发明授权
    Processes for producing 2,4,6-tris(hydroxyphenyl amino)-1,3,5-triazines and 2,4,6-tris(substituted phenylamino)-1,3,5-triazines 失效
    制备2,4,6-三(羟基苯基氨基)-1,3,5-三嗪和2,4,6-三(取代的苯基氨基)-1,3,5-三嗪的方法

    公开(公告)号:US07135567B2

    公开(公告)日:2006-11-14

    申请号:US11083216

    申请日:2005-03-18

    CPC classification number: C07D251/70

    Abstract: A novel process for producing 2,4,6-tris(hydroxyphenyl amino)-1,3,5-triazine is disclosed. The process comprises reacting a compound represented by a formula (I) and a compound represented by a formula (II) in the presence of a base in a mixed solvent of at least one organic solvent and water, to produce a compound represented by a formula (III): where Y represents a substituent, R1 represents a hydrogen atom or a substituent, m is an integer from 1 to 5, n is an integer from 0 to 4, and when n is 2 or larger, plural Y are same or different each other or plural Y may bond to each other.

    Abstract translation: 公开了一种制备2,4,6-三(羟基苯基氨基)-1,3,5-三嗪的新方法。 该方法包括使式(I)表示的化合物和式(II)表示的化合物在碱的存在下在至少一种有机溶剂和水的混合溶剂中反应,得到式 (III):其中Y表示取代基,R 1表示氢原子或取代基,m为1至5的整数,n为0至4的整数,当n为2时 或更大,多个Y彼此相同或不同,或多个Y可以彼此结合。

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