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    Continuous azo coupling process
    3.
    发明授权
    Continuous azo coupling process 失效
    连续偶氮偶合过程

    公开(公告)号：US4252718A

    公开(公告)日：1981-02-24

    申请号：US11049

    申请日：1979-02-09

    Applicant: John H. Atherton ,  Ian Hodgkinson

    Inventor： John H. Atherton ,  Ian Hodgkinson

    IPC: C09B45/46 ,  C09B41/00 ,  C09B35/00 ,  C09B35/26 ,  C09B35/36

    CPC classification number: C09B41/006 ,  C09B41/005 ,  Y10S534/07

    Abstract: A process for the preparation of an aqueous slurry of a water-insoluble azo compound which comprises continuously mixing together, in a reaction zone from which the slurry is continuously removed, a first stream containing a diazonium compound resulting from the diazotization of a heterocyclic or weakly basic benzenoid amine in an acid medium, hereinafter referred to as the diazo component, and a second stream containing a compound capable of coupling with the diazo component under the conditions existing in the reaction zone to form a water-insoluble azo compound hereinafter referred to as the coupling component.

    Abstract translation: 一种制备水不溶性偶氮化合物的水性浆液的方法，其包括在连续除去浆料的反应区中连续混合含有由杂环或弱的重氮化产生的重氮化合物的第一流 酸性介质中的碱式苯胺，以下称为重氮组分，以及含有能够在反应区中存在的条件下与重氮组分偶联的化合物的第二料流，以形成以下称为不溶于水的偶氮化合物 耦合部件。

    Process for preparing azo colorants
    6.
    发明申请
    Process for preparing azo colorants 失效
    制备偶氮着色剂的方法

    公开(公告)号：US20020055619A1

    公开(公告)日：2002-05-09

    申请号：US09972102

    申请日：2001-10-05

    Applicant: Clariant GmbH

    Inventor： Erwin Dietz ,  Joachim Weber ,  Dieter Schnaitmann ,  Christian Wille ,  Leonhard Unverdorben ,  Klaus Saitmacher ,  Jorg Jung ,  Kristina Schiffer

    IPC: C09B041/00

    CPC classification number: C09B41/006

    Abstract: The invention provides a process for preparing azo colorants which comprises spraying one or more coupling components individually or in a mixture and one or more compatible diazonium salts individually or in a mixture, in their solution or suspension form through nozzles to a point of conjoint collision in a reactor chamber enclosed by a housing in a microjet reactor, a gas or an evaporating liquid being passed into the reactor chamber through an opening in the housing for the purpose of maintaining a gas atmosphere in the reactor chamber, and the resulting product solution or suspension and the gas or the evaporated liquid being removed from the reactor through a further opening in the housing by means of overpressure on the gas entry side or underpressure on the product and gas exit side.

    Abstract translation: 本发明提供了一种制备偶氮着色剂的方法，其包括将其一种或多种偶联组分单独地或以混合物和一种或多种相容的重氮盐以其溶液或悬浮液形式通过喷嘴单独或混合， 由微型喷射反应器中的壳体包围的反应器室，气体或蒸发液体通过壳体中的开口进入反应器室，以保持反应器室中的气体气氛，并将得到的产物溶液或悬浮液 并且气体或蒸发的液体通过气体入口侧的过压或产品和气体出口侧的负压通过壳体中的另外的开口从反应器中移除。

    Method of producing disazo pigment
    7.
    发明授权
    Method of producing disazo pigment 有权

    公开(公告)号：US06303762B1

    公开(公告)日：2001-10-16

    申请号：US09827098

    申请日：2001-04-06

    Applicant: Hitoshi Maki ,  Hideto Noguchi ,  Kenji Kitamura ,  Masami Shirao

    Inventor： Hitoshi Maki ,  Hideto Noguchi ,  Kenji Kitamura ,  Masami Shirao

    IPC: C09B6720

    CPC classification number: C09B67/0055 ,  C09B41/006

    Abstract: Disclosed is a method of producing a disazo pigment, which a coupling reaction is carried out while feeding, into an acidic aqueous solution, a tetrazo aqueous solution containing a tetrazo component of benzidines and a coupler aqueous solution containing a coupling component, wherein the coupling component is a mixture comprising a main component represented by the formula (1): CH3COCH2CONH—X, wherein X represents a phenyl group optionally having one or the same or different plural substituents selected from the group consisting of a methyl group, methoxy group and chlorine atom; a first additional component represented by the formula (2): CH3COCH2CONH—Y, wherein Y represents a phenyl group having a substituent selected from the group consisting of —CONR2 group, —SO2NR2 group and —NHCOR group, and the phenyl group may further have a substituent selected from the group consisting of a methyl group, methoxy group, chlorine atom, —CONR2 group, —SO2NR2 group and —NHCOR group, and wherein Rs may be the same or different mutually, and represent a hydrogen atom, C1 to C4 alkyl group (the alkyl groups may be mutually connected to form a ring) or C1 to C4 alkylene NR′2, further wherein R's represent a hydrogen atom or C1 to C4 alkyl groups which may be mutually different (the alkyl groups may be mutually connected to form a ring); and, a second additional component represented by the formula (3): CH3COCH2CONH—Z, wherein Z represents a phenyl group substituted by any one of a carboxyl group or alkali metal salts thereof, hydroxyl group or sulfonic acid group or alkali metal salts thereof, and said phenyl group may further has a substituent selected from the group consisting of a methyl group, methoxy group, chlorine atom, carboxyl group or alkali metal salts thereof, hydroxyl group or sulfonic acid group or alkali metal salts thereof. According to the method, disazo pigments can be obtained which manifest excellent transparency and flowability of the inks produced therefrom, and excellent flushing property and flushing drain coloration resistance in the pigment production process, or excellent dispersibility when ink is formed under dry condition.

    Process for the preparation of mono- and polyazo dyes
    10.
    发明授权
    Process for the preparation of mono- and polyazo dyes 失效
    制备单和多晶型染料的方法

    公开(公告)号：US5116955A

    公开(公告)日：1992-05-26

    申请号：US587385

    申请日：1990-09-25

    Applicant: Horst Langfeld ,  Roland Minges

    Inventor： Horst Langfeld ,  Roland Minges

    IPC: C09B29/12 ,  C09B33/04 ,  C09B33/18 ,  C09B33/22 ,  C09B41/00 ,  C09B67/22 ,  D06P1/04 ,  D06P3/32

    CPC classification number: C09B41/006 ,  C09B33/04 ,  C09B33/22

    Abstract: There is disclosed a process for coupling one or more different diazo components with resorcinol on an industrial scale. The process comprises adjusting and stabilizing the coupling pH of the resorcinol prior to the reaction with the aid of a buffer system and keeping it constant during the coupling reaction or reactions by controlling the ratio of flow of the streams of the diazo component or components and the base. The process makes it possible to prepare mono- and polyazo dyes in excellent uniform quality and yield.

    Abstract translation: 公开了一种在工业规模上将一种或多种不同重氮组分与间苯二酚偶合的方法。 该方法包括在反应之前借助缓冲体系来调节和稳定间苯二酚的偶联pH，并通过控制重氮组分或组分的流的比例和在偶联反应或反应期间将其保持恒定 基础。 该方法使得可以以优异的均匀质量和产率制备单和多偶氮染料。

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