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    Process for producing benzyl esters of aromatic hydroxycarboxylic acids
    1.
    发明授权
    Process for producing benzyl esters of aromatic hydroxycarboxylic acids 失效
    制备芳族羟基羧酸苄基酯的方法

    公开(公告)号：US4973737A

    公开(公告)日：1990-11-27

    申请号：US303044

    申请日：1989-01-30

    申请人： Ryuzo Ueno ,  Hiroaki Tsuchiya ,  Shigeru Itoh ,  Ichiro Yamamoto

    发明人： Ryuzo Ueno ,  Hiroaki Tsuchiya ,  Shigeru Itoh ,  Ichiro Yamamoto

    IPC分类号： B01J31/00 ,  C07B61/00 ,  C07C67/03 ,  C07C67/08 ,  C07C69/88 ,  C07C69/94

    CPC分类号： C07C67/03 ,  C07C69/88

    摘要： Highly pure benzyl esters of aromatic hydroxycarboxylic acids are produced in high yields by reacting an aromatic hydroxycarboxylic acid or its lower alkyl ester with a benzyl alcohol in the presence of an organotin compound of the general formula ##STR1## wherein R's are identical or different and each represents an alkyl group having 1 to 8 carbon atoms or an aryl group, and Z represents an oxygen or sulfur atom,an organotin compound of the general formulaR.sub.p SnX.sub.q (II)wherein R is as defined, X represents a halogen atom or the group --OCOR.sup.1 in which R.sup.1 represents a saturated or unsaturated alkyl group having 1 to 18 carbon atoms or an aryl group, p is 2, 3 or 4, q is 0, 1 or 2, the sum of p and q is 4, and when q is 2, the two X's may be linked to each other to form the group --OCO--R.sup.2 --COO-- in which R.sup.2 represents a saturated or unsaturated alkylene group having 1 to 10 carbon atoms or an arylene group,or an organotitanium compound of the general formulaTi(OR).sub.4 (III)wherein R is as defined.

    摘要翻译： 通过使芳族羟基羧酸或其低级烷基酯与苄醇在通式为（I）的有机锡化合物的存在下反应，其中R是相同的或通过芳基羟基羧酸或其低级烷基酯与芳基羟基羧酸的高纯度苄酯 各自表示碳原子数1〜8的烷基或芳基，Z表示氧或硫原子，通式RpSnXq（II）表示的有机锡化合物，其中，R如上所定义，X表示卤素原子或 基团-OCOR1，其中R1表示具有1至18个碳原子的饱和或不饱和烷基或芳基，p为2,3或4，q为0,1或2，p和q之和为4， 当q为2时，两个X可以彼此连接形成基团-OCO-R 2 -COO-，其中R 2表示具有1至10个碳原子的饱和或不饱和亚烷基或亚芳基，或有机钛 通式为Ti（OR）4（III）的化合物，其中R为a 定义。

    Azo pigments derived from 2-hydroxynaphthalene-3-carboxylic acid or its salts having improved color
    3.
    发明授权
    Azo pigments derived from 2-hydroxynaphthalene-3-carboxylic acid or its salts having improved color 失效
    衍生自2-羟基萘-3-羧酸的偶氮颜料或其盐具有改进的颜色

    公开(公告)号：US4530724A

    公开(公告)日：1985-07-23

    申请号：US413797

    申请日：1982-09-01

    申请人： Ryuzo Ueno ,  Hiroaki Tsuchiya ,  Shigeru Itoh

    发明人： Ryuzo Ueno ,  Hiroaki Tsuchiya ,  Shigeru Itoh

    IPC分类号： C09B29/15 ,  C09B67/20 ,  C09B67/22 ,  C09B29/01

    CPC分类号： C09B67/0046 ,  C09B29/103

    摘要： The color of azo pigments derived from 2-hydroxynaphthalene-3-carboxylic acid or its salts are improved by the coupling reaction of a diazonium compound of an aromatic aminosulfonic acid with a coupling component which is a mixture of (1) 2-hydroxynaphthalene-3-carboxylic acid or its salt, (2) .beta.-naphthol or its salt, and (3) a phenolic by-product having a molecular weight of about 300 and containing about 1 equivalent of phenolic hydroxy groups. The phenolic by-product can be obtained by evaporating .beta.-naphthol from a tarry substance formed as a by-product during the reaction of an alkali .beta.-naphtholate with carbon dioxide, extracting the residue with an alkali and precipitating the soluble matter with an acid. The color or tone of the azo pigment is stabilized by the use of the coupling component. The azo pigments range from those having dark color and a greater degree of transparency which are suitable for use in printing inks to those having increased brightness which are suitable for use in paints.

    摘要翻译： 通过芳香族氨基磺酸的重氮化合物与作为（1）2-羟基萘-3的混合物的偶合成分的偶联反应，可以改善由2-羟基萘-3-甲酸或其盐衍生的偶氮颜料的颜色 - 羧酸或其盐，（2）β-萘酚或其盐，和（3）分子量约为300并含有约1当量酚羟基的酚类副产物。 酚类副产物可以通过在碱性β-萘酚与二氧化碳的反应期间从作为副产物形成的焦油状物质中蒸发β-萘酚获得，用碱萃取残余物并用酸沉淀可溶物质 。 通过使用偶联组分使偶氮颜料的颜色或色调稳定。 偶氮颜料的范围从具有深色和较高透明度的那些，其适用于将油墨用于具有适合用于涂料中的亮度增加的那些。

    Process for preparing 2-hydroxynaphthalenecarboxylic acids
    4.
    发明授权
    Process for preparing 2-hydroxynaphthalenecarboxylic acids 失效
    2-羟基萘羧酸的制备方法

    公开(公告)号：US4239913A

    公开(公告)日：1980-12-16

    申请号：US933902

    申请日：1978-08-15

    申请人： Ryuzo Ueno ,  Hiroaki Tsuchiya ,  Yasukazu Muramoto ,  Yoshihiko Kuwae

    发明人： Ryuzo Ueno ,  Hiroaki Tsuchiya ,  Yasukazu Muramoto ,  Yoshihiko Kuwae

    IPC分类号： C07C51/15

    CPC分类号： C07C51/15

    摘要： A process for preparing 2-hydroxynaphthalenecarboxylic acids which comprises reacting a liquid mixture of 1 mole of an alkali .beta.-naphtholate, 0.05 to 3 moles of .beta.-naphthol, and 0.1 to 5 times the weight of the alkali .beta.-naphtholate of light oil or kerosene with carbon dioxide under a carbon dioxide pressure of not more than 15 kg/cm.sup.2.G at a temperature of at least 180.degree. C.

    摘要翻译： 一种制备2-羟基萘甲酸的方法，其包括使1摩尔碱式β-萘酚的0.05摩尔β-萘酚的液体混合物与轻油碱性β-萘磺酸盐的重量的0.1至5倍反应，或 在二氧化碳压力为不超过15kg / cm 2·G的二氧化碳的煤油中，在至少180℃的温度下

    Liquid-crystal polyester resin
    5.
    发明授权
    Liquid-crystal polyester resin 有权
    液晶聚酯树脂

    公开(公告)号：US06984712B2

    公开(公告)日：2006-01-10

    申请号：US10496490

    申请日：2002-11-25

    申请人： Ryuzo Ueno ,  Masaya Kitayama ,  Kiichi Kometani ,  Hiroyuki Kato ,  Kazunori Ueda

    发明人： Ryuzo Ueno ,  Masaya Kitayama ,  Kiichi Kometani ,  Hiroyuki Kato ,  Kazunori Ueda

    IPC分类号： C08G63/06 ,  C08F20/00 ,  C09K19/32

    CPC分类号： C08G63/605 ,  C08G63/06 ,  C08G63/19 ,  C08G63/20 ,  C09K19/3809

    摘要： The present invention provides a liquid-crystalline polyester resin which comprises monomer units derived from 2-hydroxy-3-naphthoic acid and/or 2-hydroxynaphthalene-3,6-dicarboxylic acid in an amount of 1-5000 mmol % based on the total monomer components of the resin and an alkaline metal compound in an amount of 10-3000 ppm as alkaline metal based on the total monomer components of the resin. The liquid-crystalline polyester resin of the present invention has good colorability, improved heat resistance and good mechanical properties.

    摘要翻译： 本发明提供一种液晶聚酯树脂，其包含基于总量为1-5000mmol％的来源于2-羟基-3-萘甲酸和/或2-羟基萘-3,6-二羧酸的单体单元 树脂的单体组分和碱金属化合物，其量为基于树脂总单体成分的碱金属为10-3000ppm。 本发明的液晶聚酯树脂具有良好的着色性，耐热性和良好的机械性能。

    Crystalline mixture solid containing maltitol and preparation therefor
    8.
    发明授权
    Crystalline mixture solid containing maltitol and preparation therefor 有权
    含有麦芽糖醇的结晶混合物固体及其制备方法

    公开(公告)号：US06863737B2

    公开(公告)日：2005-03-08

    申请号：US10048585

    申请日：2001-07-03

    申请人： Ryuzo Ueno ,  Akihiko Tabata ,  Junya Honda ,  Yojiro Furukawa

    发明人： Ryuzo Ueno ,  Akihiko Tabata ,  Junya Honda ,  Yojiro Furukawa

    IPC分类号： C07H3/04 ,  C07H15/04 ,  C13F1/02 ,  C07H1/00 ,  C07H1/06 ,  C08B30/00 ,  C13K5/00

    CPC分类号： C07H15/04 ,  C07H3/04

    摘要： A crystalline mixture solid containing maltitol having an oil absorptivity of 0.1 to 6.9 wt % and a bulk density of 0.60 to 0.75 g/cc when it is ground and classified to ensure that at least 70 wt % of the obtained particles should have a particle size of 16 to 50 mesh and a process for producing a crystalline mixture solid containing maltitol, comprising introducing air bubbles into a maltitol aqueous solution. According to this process, a crystalline mixture solid containing maltitol having high solubility and almost no moisture absorption is produced at a high work efficiency and a low cost in a short period of time.

    摘要翻译： 一种含有麦芽糖醇的结晶混合物固体，其研磨时的吸油率为0.1〜6.9重量％，体积密度为0.60〜0.75g / cc，并进行分级，以确保至少70重量％的所得颗粒具有粒径 16至50目的筛网和包含麦芽糖醇的结晶混合物固体的方法，包括将气泡引入到麦芽糖醇水溶液中。 根据该方法，以高工作效率和短时间内的低成本生产含有高溶解度且几乎不吸湿的麦芽糖醇的结晶混合物固体。