Preparation of condensates of arenesulfonic acids and formaldehyde and
use thereof
    3.
    发明授权
    Preparation of condensates of arenesulfonic acids and formaldehyde and use thereof 失效
    芳烃磺酸和甲醛的缩合物的制备及其用途

    公开(公告)号:US5534166A

    公开(公告)日:1996-07-09

    申请号:US37392

    申请日:1993-03-26

    CPC分类号: C07G17/002 C08G16/0237

    摘要: Condensates of arenesulfonic acids and formaldehyde are prepared by sulfonating arenes obtainable by thermal cracking of a naphthenic residue oil and fractional distillation of the cracked products of the fraction obtained at 100-120.degree. C. under atmospheric pressure, sulfonating this aromatics fraction with oleum at 120.degree.-160.degree. C. using an amount of from 0.7 to 1.2 parts by weight of oleum having an SO.sub.3 content of 24% by weight per part by weight of aromatics fraction, and subsequently condensing the arenesulfonic acids with formaldehyde in a conventional manner, and are used as dispersants, in particular for preparing dye formulations.

    摘要翻译: 芳族磺酸和甲醛的冷凝物是通过磺化芳烃来制备的,该芳烃可通过环烷烃残余油的热裂解得到,并在100-120℃下在大气压下分馏得到的馏分的裂化产物,用发烟硫酸将该芳烃馏分磺化120 DEG -160℃,使用0.7至1.2重量份的SO 3含量为每重量份芳烃馏分24重量%的发烟硫酸,然后以常规方式将芳族磺酸与甲醛缩合,以及 用作分散剂,特别是用于制备染料配方。

    Preparation of concentrated solutions of cationic dyes as
mono-carboxylates in glycol ether
    7.
    发明授权
    Preparation of concentrated solutions of cationic dyes as mono-carboxylates in glycol ether 失效
    在乙二醇醚中制备阳离子染料作为单羧酸盐的浓缩溶液

    公开(公告)号:US4976744A

    公开(公告)日:1990-12-11

    申请号:US406244

    申请日:1989-09-12

    IPC分类号: C09B67/32

    CPC分类号: C09B67/0075 Y10S8/927

    摘要: Concentrated solutions of cationic dyes are prepared by treating the cationic dyes, which contain as the counterions the anions customarily present during their preparation, with alkali metal salts of monocarboxylic acids and with or without complexing agents in an aqueous glycol ether medium, and separating off the organic phase, which contains the dyes in the form of their monocarboxylic acid salts.

    摘要翻译: 阳离子染料的浓缩溶液通过在阳离子染料中处理阳离子染料,所述阳离子染料在其制备过程中通常含有阴离子与阴离子一起含有一元羧酸的碱金属盐,并且在含水二醇醚介质中含有或不与络合剂反应, 有机相,其含有其一元羧酸盐形式的染料。