Copolyester
    1.
    发明授权
    Copolyester 失效
    共聚酯

    公开(公告)号:US4746721A

    公开(公告)日:1988-05-24

    申请号:US893206

    申请日:1986-08-05

    摘要: A melt-processable copolyester composed of the following structural units (I), (II) and (III) and/or (IV) as main structural components, whereinunit (I) is represented by the formula ##STR1## wherein X.sub.1, X.sub.2, X.sub.3 and X.sub.4, independently from each other, represent H, F, Cl, Br, CH.sub.3 or C(CH.sub.3).sub.3, provided that X.sub.1 to X.sub.4 do not simultaneously represent H, and n is 2 or 4,unit (II) is at least one unit selected from the group consisting of ##STR2## wherein at least one of the hydrogen atoms in each aromatic ring in units (II), (III) and (IV) may be substituted by an alkyl or alkoxy group having 1 to 4 carbon atoms or a halogen atom.The proportion of unit (I) is 2.5 to 35 mole %, the proportion of unit (II) is 2.5 to 35 mole %, and the proportion of unit (III), (IV) or a combination of units (III) and (IV) is 30 to 95 mole %.

    摘要翻译: 由以下结构单元(I),(II)和(III)和/或(IV)作为主要结构组分组成的可熔融加工的共聚酯,其中单元(I)由下式表示:其中X1,X2 ,X3和X4彼此独立地表示H,F,Cl,Br,CH3或C(CH3)3,条件是X1至X4不同时表示H,n为2或4,单元(II)为 选自由 + TR 组成的组中的至少一个单元,其中每个芳环中的至少一个氢原子单元 (II),(III)和(IV)可以被具有1至4个碳原子的烷基或烷氧基或卤素原子取代。 单位(I)的比例为2.5〜35摩尔%,单位(II)的比例为2.5〜35摩尔%,单位(III),(IV)或单位(三)和( IV)为30〜95摩尔%。

    Liquid-crystalline polymer
    4.
    发明授权
    Liquid-crystalline polymer 失效
    液晶聚合物

    公开(公告)号:US06388045B1

    公开(公告)日:2002-05-14

    申请号:US09743198

    申请日:2001-01-08

    IPC分类号: C08G6300

    摘要: Provided is a liquid crystalline polymer which is obtained by copolymerizing at least one polyfunctional aromatic monomer selected from the group consisting of the compounds represented by the formulae (I), (II) and (III) below with at least one polymerizable monomer. The liquid crystalline polymer of the present invention is excellent in heat resistance, molding properties, flow properties and mechanical properties, especially it provide molded article with improved weld strength.

    摘要翻译: 本发明提供一种液晶聚合物,其通过使至少一种选自下述式(I),(II)和(III)表示的化合物的多官能芳族单体与至少一种可聚合单体共聚而获得。 本发明的液晶聚合物的耐热性,成型性,流动性和机械性能优异,特别是提供具有改善的焊接强度的模制品。

    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

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

    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

    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。