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17 条记录 (耗时 0.017 秒)

    Aromatic dicarboxylic acid composition and liquid crystalline polyester resin made from the same
    1.
    发明授权
    Aromatic dicarboxylic acid composition and liquid crystalline polyester resin made from the same 有权
    芳族二羧酸组合物和由其制成的液晶聚酯树脂

    公开(公告)号：US06755991B2

    公开(公告)日：2004-06-29

    申请号：US09917209

    申请日：2001-07-30

    申请人： Kiichi Kometani ,  Hiroyuki Kato ,  Kazunori Ueda

    发明人： Kiichi Kometani ,  Hiroyuki Kato ,  Kazunori Ueda

    IPC分类号： C09K1952

    CPC分类号： C08G63/605 ,  C09K19/3809

    摘要： An aromatic dicarboxylic acid composition, essentially consisting of (a) at least one aromatic dicarboxylic acid; (b) 1-3000 ppm of at least one compound selected from the group consisting of 6-formyl-2-naphthoic acid, 6-methoxycarbonyl-2-naphthoic acid and trimellitic acid; (c) 1-1000 ppm of at least one alkali metal and (d) 0-3000 ppm of at least one transition metal is provided. By employing the composition in manufacturing liquid crystalline polyester, LPCs with good coloring property and improved heat resistance as well as excellent mechanical property can be obtained. The present invention also provides a liquid crystalline polyester resin prepared by using the composition.

    摘要翻译： 芳族二羧酸组合物，主要由（a）至少一种芳族二羧酸组成; （b）1-3000ppm的至少一种选自6-甲酰基-2-萘甲酸，6-甲氧基羰基-2-萘甲酸和偏苯三酸的化合物; （c）提供1-1000ppm的至少一种碱金属和（d）0-3000ppm的至少一种过渡金属。 通过在制造液晶聚酯中使用组合物，可以获得具有良好着色性能和改善的耐热性以及优异的机械性能的LPC。 本发明还提供了使用该组合物制备的液晶聚酯树脂。

    Liquid-crystal polyester resin
    2.
    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。

    Polyester compositions and molded articles therefrom
    6.
    发明授权
    Polyester compositions and molded articles therefrom 失效
    聚酯组合物及其制品

    公开(公告)号：US5112913A

    公开(公告)日：1992-05-12

    申请号：US561233

    申请日：1990-07-26

    申请人： Kenjiro Horiuchi ,  Kiichi Kometani ,  Toshihide Inoue

    发明人： Kenjiro Horiuchi ,  Kiichi Kometani ,  Toshihide Inoue

    IPC分类号： C08L23/04 ,  C08G59/00 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L33/00 ,  C08L33/02 ,  C08L51/00 ,  C08L51/02 ,  C08L63/00 ,  C08L67/00 ,  C08L67/02 ,  C08L69/00 ,  C08L87/00 ,  C08L101/00 ,  H01B3/42

    CPC分类号： H01B3/426 ,  C08L67/02 ,  C08L69/00 ,  H01B3/421

    摘要： The subject invention relates to the polyester compositions being composed of (a) an aromatic polyester having the relative viscosity of 1.2 to 2.0, (b) an aromatic polycarbonate having the number average molecular weight of 10,000 to 80,000, and (c) a glycidyl-group containing copolymer consisting essentially of .alpha.-olefine and glycidyl ester of .alpha.,.beta.-ethylenically unsaturated carboxylic acid and having the melt index of 0.1 to 100. They are useful for manufacturing electric, electronic and automotive parts, being superior in flow property and melt stability on molding, as well as in mechanical properties particularly in impact and hot-air aging resistance. The compositions can be molded to form various articles by conventional molding methods.

    摘要翻译： 本发明涉及由（a）相对粘度为1.2〜2.0的芳香族聚酯构成的聚酯组合物，（b）数均分子量为10,000〜80,000的芳香族聚碳酸酯，（c）缩水甘油基 - 基团含有α-烯烃和α，β-烯键式不饱和羧酸的缩水甘油酯，其熔体指数为0.1〜100的聚合物共聚物。它们可用于制造电性，电子和汽车部件，流动性和熔体优异 成型时的稳定性，以及特别是在冲击和耐热老化性方面的机械性能。 可以通过常规模塑方法将组合物模塑成多种制品。

    Aromatic polyester composition and process for producing the same
    10.
    发明授权
    Aromatic polyester composition and process for producing the same 失效
    芳香族聚酯组合物及其制备方法

    公开(公告)号：US4879328A

    公开(公告)日：1989-11-07

    申请号：US193951

    申请日：1988-05-13

    申请人： Hiroo Karasawa ,  Kiichi Kometani ,  Kiyomi Okita

    发明人： Hiroo Karasawa ,  Kiichi Kometani ,  Kiyomi Okita

    IPC分类号： C08L63/00 ,  C08L67/02

    CPC分类号： C08L63/00 ,  C08L67/02

    摘要： Disclosed is a polyester composition comprising (a) 100 parts by weight of an aromatic polyester; (b) 0.005-10 parts by weight of an epoxy compound of the formula (I): ##STR1## (wherein Ar means C.sub.6 -C.sub.20 aromatic group or C.sub.6 l-C.sub.20 alicyclic group, n means an integer of 0-20); and (c) 1-70 parts by weight of at least one elastomer which has at least one functional group selected from the group consisting of epoxy groups, carboxyl group, carboxylate ester groups, carboxylic acid amide groups, acid anhydride group, imide groups, carboxylate salt groups, hydroxyl group, amino group and cyano group, the elastomer having a tensile modulus of 1-6,000 kg/cm.sup.2. The polyester resin composition of the present invention can easily be molded and the obtained molded article excells in mechanical properties such as impact strength. The obtained molded article also excells in flowability and residence stability during the molding, and in hydrolysis stablity, resistance to thermal cycling and in weatherability.