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6 条记录 (耗时 0.037 秒)

    Granules of 2-hydroxynaphthalene-3-carboxylic acid and method for preparing the same
    1.
    发明授权
    Granules of 2-hydroxynaphthalene-3-carboxylic acid and method for preparing the same 有权
    2-羟基萘-3-羧酸颗粒及其制备方法

    公开(公告)号：US06562998B1

    公开(公告)日：2003-05-13

    申请号：US09869143

    申请日：2001-06-26

    申请人： Ryuzo Ueno ,  Masaya Kitayama ,  Nobutaka Izumichi ,  Syungo Nara ,  Masaharu Kittaka

    发明人： Ryuzo Ueno ,  Masaya Kitayama ,  Nobutaka Izumichi ,  Syungo Nara ,  Masaharu Kittaka

    IPC分类号： C07C6334

    CPC分类号： C07C65/11

    摘要： Granular product of 2-hydroxynaphthalene-3-carboxylic acid with well-suppressed dusting tendency, and process for preparing the same is provided. Granular product of 2-hydroxynaphthalene-3-carboxylic acid having an average particle size of 150 &mgr;m or more and a hardness of 70-3000 g, and a process for preparing the same comprising the steps of dry compressing powdery 2-hydroxynaphthalene-3-carboxylic acid to give compressed material and pulverizing and classifying the same.

    摘要翻译： 提供具有良好抑制粉尘倾向的2-羟基萘-3-羧酸的颗粒产物及其制备方法。平均粒度为150μm以上的2-羟基萘-3-羧酸的粒状产物和 硬度为70-3000g，其制备方法包括以下步骤：将粉末状2-羟基萘-3-羧酸干燥，得到压缩材料并粉碎和分级。

    Granule of parahydroxybenzoic acid or parahydroxybenzoic ester and process for producing the same
    4.
    发明授权
    Granule of parahydroxybenzoic acid or parahydroxybenzoic ester and process for producing the same 有权
    对羟基苯甲酸或对羟基苯甲酸酯的颗粒及其制备方法

    公开(公告)号：US06673962B2

    公开(公告)日：2004-01-06

    申请号：US10311633

    申请日：2002-12-18

    申请人： Ryuzo Ueno ,  Masaya Kitayama ,  Nobutaka Izumichi ,  Masaharu Kittaka

    发明人： Ryuzo Ueno ,  Masaya Kitayama ,  Nobutaka Izumichi ,  Masaharu Kittaka

    IPC分类号： C07C6501

    CPC分类号： C07C65/03 ,  C07C69/88

    摘要： Granular product of parahydroxybenzoic acid or its ester which exhibits well suppressed dusting and caking tendency and a process for preparing the product are provided. The granular product of parahydroxybenzoic acid or its ester according to the instant invention has an average particle size of equal to or more than 150 &mgr;m and a hardness of 10-3000 g. The granular product of the invention can be prepared by dry compressing powdery parahydroxybenzoic acid or its ester to give compressed material, pulverizing and classifying the material.

    摘要翻译： 提供了显示良好抑制粉尘和结块倾向的对羟基苯甲酸或其酯的颗粒产物和制备该产品的方法。 本发明的对羟基苯甲酸或其酯的粒状产物的平均粒径为150μm以上，硬度为10〜3000g。 本发明的颗粒状产品可以通过干燥压制粉末状的对羟基苯甲酸或其酯来制备，得到压缩材料，粉碎和分级材料。

    Water-soluble azo compounds and process for the preparation thereof
    5.
    发明授权
    Water-soluble azo compounds and process for the preparation thereof 失效
    水溶性偶氮化合物及其制备方法

    公开(公告)号：US06239263B1

    公开(公告)日：2001-05-29

    申请号：US09380207

    申请日：1999-08-26

    申请人： Ryuzo Ueno ,  Masaya Kitayama ,  Kenji Minami ,  Masaharu Kittaka

    发明人： Ryuzo Ueno ,  Masaya Kitayama ,  Kenji Minami ,  Masaharu Kittaka

    IPC分类号： C09B62507

    CPC分类号： C09B62/51

    摘要： Novel water-soluble azo compounds useful as raw materials for preparing dyes excellent in dyeing properties and fastness and prepared from a coupler consisting of 2-hydroxynaphthalene-3,6-dicarboxylic acid or an ester thereof or an amide derivative of the same and a diazonium compound having a group of the general formula: —B—(CH2)2- Q or —B′—(CH2)2-Q′ (wherein B and B′ are each an electron-attracting group; and Q and Q′ are each a group capable of forming a vinyl group through the elimination with an alkali, provided the groups Q and Q′ are each bonded at the &bgr;-position of the ethyl group).

    摘要翻译： 新颖的水溶性偶氮化合物可用作制备染料性能和牢度优良的染料的原料，并由由2-羟基萘-3,6-二羧酸或其酯或其酰胺衍生物组成的成色剂和重氮 具有以下通式的基团：-B-（CH2）2-Q或-B' - （CH2）2-Q'（其中B和B'各自为吸电子基团; Q和Q'为 每个是能够通过用碱去除形成乙烯基的基团，条件是基团Q和Q'各自键合在乙基的β-位）。