Polyester/clay nanocomposite and preparation method
    491.
    发明申请
    Polyester/clay nanocomposite and preparation method 审中-公开
    聚酯/粘土纳米复合材料及其制备方法

    公开(公告)号:US20040259999A1

    公开(公告)日:2004-12-23

    申请号:US10784035

    申请日:2004-02-20

    CPC classification number: C08J5/005 B82Y30/00 C08J2367/02 C08K9/08

    Abstract: Disclosed are a polyester/clay nanocomposite, and a preparation method thereof, comprising mixing a cyclic ester oligomer with a layered clay having an enhanced hydrophobicity and directly polymerizing the cyclic ester oligomer. The polyester/clay nanocomposite has an excellent processibility due to its low melting viscosity and has excellent mechanical and electrical properties. Therefore, it can replace conventional polyester resin applied as electronic material, as well as can be used as a compatibilizing agent for increasing compatibility of the conventional polyester/clay composite.

    Abstract translation: 公开了一种聚酯/粘土纳米复合材料及其制备方法,其包括将环酯低聚物与具有增强的疏水性的层状粘土混合并直接聚合环状酯低聚物。 聚酯/粘土纳米复合材料由于其低熔融粘度而具有优异的加工性,并且具有优异的机械和电学性能。 因此,可以代替作为电子材料使用的常规聚酯树脂,并且可以用作增加常规聚酯/粘土复合材料的相容性的相容剂。

    Method for producing silver salt-containing facilitated transport membrane for olefin separation having improved stability
    493.
    发明申请
    Method for producing silver salt-containing facilitated transport membrane for olefin separation having improved stability 失效
    一种具有改善的稳定性的含银盐促进烯烃分离输送膜的方法

    公开(公告)号:US20040154980A1

    公开(公告)日:2004-08-12

    申请号:US10773257

    申请日:2004-02-09

    CPC classification number: C10G31/11 B01D53/228 B01D69/142 C07C7/144 C07C11/02

    Abstract: The present invention relates to polymer membranes for separating olefins from paraffins which have the similar molecular size and close boiling point. More particularly, it relates to a silver salt-containing facilitated transport membrane for olefin separation, and also a method for producing the same. An object of the present invention is to provide a silver salt-containing facilitated transport membrane for olefin separation having improved stability, and also a method for preparing the same, which exhibits no deterioration in membrane performance even when operated for an extended period of time. The facilitated transport membrane for olefin/paraffin separation of the present invention comprises a polymer, a silver salt, and a phthalate compound represented by the following formula (1) 1 wherein R denotes an alkyl group of 2 to 8 carbon atoms or a phenyl group.

    Abstract translation: 本发明涉及用于从具有相似分子大小和接近沸点的石蜡中分离烯烃的聚合物膜。 更具体地说,本发明涉及一种用于烯烃分离的含银盐的促进输送膜,以及它们的制造方法。 本发明的目的是提供一种具有改进的稳定性的含银盐的促进烯烃分离的输送膜以及其制备方法,即使长时间操作也不会降低膜性能。 本发明的促进烯烃/石蜡分离的输送膜包括由下式(1)表示的聚合物,银盐和邻苯二甲酸酯化合物,其中R表示2至8个碳原子的烷基或苯基。

    Trichlorosilyl groups containing organochlorosilanes and their preparation methods by the double-silylation of olefins with trichlorosilane
    495.
    发明申请
    Trichlorosilyl groups containing organochlorosilanes and their preparation methods by the double-silylation of olefins with trichlorosilane 审中-公开
    含有有机氯硅烷的三氯甲硅烷基及其与三氯硅烷双烯丙基化的制备方法

    公开(公告)号:US20040082803A1

    公开(公告)日:2004-04-29

    申请号:US10400875

    申请日:2003-03-28

    CPC classification number: C07F7/12 C07F7/14

    Abstract: The present invention provides organosilicon compounds containing two trichlorosilyl groups and their preparation methods. Organosilicon compounds of formula II are prepared by reacting linear chain or cyclic olefins of formula I with trichlorosilane in the presence of quaternary organophosphonium salt as a catalyst.R1nullHCnullCHnullR2nullnull(I) 1 In formulas I and II, R1 and R2 may be identical or different and represent a hydrogen atom, a linear or a cyclic C1-C8 alkyl, a linear or a cyclic C1-C8 alkenyl, benzyl, phenyl, a C1-C8 alkyl substituted phenyl group, two functional groups between R1 and R2 may be covalently bonded to form a C4-C8 ring with or without a carbon-carbon double bond.

    Abstract translation: 本发明提供含有两个三氯甲硅烷基的有机硅化合物及其制备方法。 式Ⅱ的有机硅化合物是通过在季有机鏻盐作为催化剂的存在下使式I的直链或环烯烃与三氯硅烷反应来制备的。 R 1 -HC = CH-R 2(I)在式I和II中,R 1和R 2可以相同或不同,表示氢原子,直链或环状C 1 -C 8 烷基,直链或环状C 1 -C 8烯基,苄基,苯基,C 1 -C 8烷基取代的苯基,R 1和R 2之间的两个官能团可共价键合以形成具有 或没有碳 - 碳双键。

    Method for preparing a heteropolyacid catalyst from basic solvent treatments and method for preparing methacrylic acid using thereof
    499.
    发明申请
    Method for preparing a heteropolyacid catalyst from basic solvent treatments and method for preparing methacrylic acid using thereof 失效
    从碱性溶剂处理制备杂多酸催化剂的方法和使用其制备甲基丙烯酸的方法

    公开(公告)号:US20030233014A1

    公开(公告)日:2003-12-18

    申请号:US10452220

    申请日:2003-06-03

    Abstract: The present invention relates to a method for preparing a heteropolyacid catalyst and method for preparing methacrylic acid using thereof. More particularly, the present invention relates to a method for preparing heteropolyacid catalyst, which is produced by the recrystallization of a heteropolyacid and/or its salt dissolved in a basic organic solvent and heat-treatment, and further to a method for preparing metachrylic acid using thereof, wherein the use of the heteropolyacid catalyst increases the activity of oxidation reaction induced by the modified electronic properties of heteropolyanions and provides high efficiency production of methacrylic acid from methacrolein, since the basic property of solvent inhibits peculiar acidic property of heteropolyacid.

    Abstract translation: 本发明涉及一种制备杂多酸催化剂的方法及其制备方法。 更具体地说,本发明涉及一种制备杂多酸催化剂的方法,该方法是通过将杂多酸和/或其盐溶解在碱性有机溶剂中进行重结晶并进行热处理制备的,进一步涉及一种使用 其中杂多酸催化剂的使用增加了由杂多阴离子改性的电子性质引起的氧化反应的活性,并由甲基丙烯醛高效生产甲基丙烯酸,因为溶剂的碱性可以抑制杂多酸的特殊酸性。

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