Diimino compounds
    1.
    发明申请
    Diimino compounds 失效
    二亚氨基化合物

    公开(公告)号:US20020065433A1

    公开(公告)日:2002-05-30

    申请号:US09804370

    申请日:2001-03-12

    IPC分类号: C07F005/02

    摘要: The present invention is related to diimino compounds of formulae (I) R2nullNnullC(R1)(R3)nC(R1)nullNnullR2 and (II) (R1)2CnullNnull(CR24)mnullNnullC(R1)2 functionalized with at least one siloxy group. Said diimino compounds are useful for obtaining a solid catalyst component for polymerizing olefins wherein the diimino compound of formulae (I) or (II) is bonded to a porous inorganic support and to a transition metal selected from groups 8, 9 and 10 of the periodic table. This invention also relates to a process for preparing said diimino compounds of formulae (I) or (II), to a process for obtaining said solid catalyst component comprising the combination of the diimino compound and a porous inorganic support. Further, the invention also relates to the use of said solid catalyst in combination with a cocatalyst to polimerize olefins.

    摘要翻译: 本发明涉及式(I)的二亚氨基化合物:R2-N = C(R1)(R3)nC(R1)= N-R2和(Ⅱ)(R1)2C = N-(CR24)mN = C R1)2与至少一个甲硅烷氧基官能化。 所述二亚氨基化合物可用于获得用于聚合烯烃的固体催化剂组分,其中式(I)或(II)的二亚氨基化合物与多孔无机载体结合,并且选自周期表中第8,9和10族的过渡金属 表。 本发明还涉及一种制备所述式(I)或(II)二亚氨基化合物的方法,涉及获得所述固体催化剂组分的方法,所述固体催化剂组分包含二亚氨基化合物和多孔无机载体的组合。 此外,本发明还涉及所述固体催化剂与助催化剂组合以使烯烃聚合的用途。

    Process to purify polyether polyols
    2.
    发明申请
    Process to purify polyether polyols 审中-公开
    纯化聚醚多元醇的方法

    公开(公告)号:US20040267056A1

    公开(公告)日:2004-12-30

    申请号:US10879919

    申请日:2004-06-29

    IPC分类号: C07C041/34

    CPC分类号: C08G65/30 C08G65/2663

    摘要: The process consists of subjecting a crude polyether polyol produced by catalysis with double metal cyanide (DMC) catalysts to a microfiltration or ultrafiltration process. The resulting polyether polyol is substantially pure, has high transparency and a very low content of DMC catalyst residues.

    摘要翻译: 该方法包括将通过催化产生的粗制聚醚多元醇与双金属氰化物(DMC)催化剂进行微滤或超滤过程。 得到的聚醚多元醇基本上是纯的,具有高透明度和非常低的DMC催化剂残余物含量。

    Process to produce unsaturated polyester polyols
    4.
    发明申请
    Process to produce unsaturated polyester polyols 失效
    生产不饱和聚酯多元醇的方法

    公开(公告)号:US20040266977A1

    公开(公告)日:2004-12-30

    申请号:US10880142

    申请日:2004-06-29

    摘要: The process consists of making react (i) an alkylene oxide polyether polyol, (ii) an organic compound which has an ethylenic unsaturation and a hydroxyl, carboxyl, anhydride, isocyanate or epoxy group and (iii) an alkylene oxide selected from ethylene oxide, propylene oxide and mixtures thereof, in the presence of an effective quantity of a potassium naphthenate catalyst. The unsaturated polyester polyols produced have a reduced degree of unsaturation and are useful in the synthesis of polymeric polyols with good viscosity, filterability and particle size properties, suitable for the production of cellular polyurethane compounds.

    摘要翻译: 该方法包括使(i)烯化氧聚醚多元醇,(ii)具有烯属不饱和键和羟基,羧基,酸酐,异氰酸酯或环氧基的有机化合物和(iii)选自环氧乙烷, 环氧丙烷及其混合物在有效量的环烷酸钾催化剂存在下进行。 所生产的不饱和聚酯多元醇具有降低的不饱和度,并且可用于合成具有良好粘度,过滤性和粒度特性的聚合多元醇,适用于生产细胞聚氨酯化合物。

    Heterogeneous catalyst components for olefins polymerization, preparation process and use thereof
    6.
    发明申请
    Heterogeneous catalyst components for olefins polymerization, preparation process and use thereof 审中-公开
    用于烯烃聚合的非均相催化剂组分,其制备方法和用途

    公开(公告)号:US20020032294A1

    公开(公告)日:2002-03-14

    申请号:US09924929

    申请日:2001-08-08

    IPC分类号: C08F210/00

    摘要: It is shown metallocenes with functionalized bridge of formula 1 wherein M represents a transition metal of groups 3, 4, 5 or 6, L represents cyclopentadieliyl-type ligands, Y represents a halogen and which can own one or various bridges between uritics L. At least one of these bridges is functionalized through a group constituted by the union between a halogen atom and a silicon, germanium or tin atom. It is also shown a method for the synthesis of these metallocene compounds starting from the corresponding metallic halure and a precursor of the ligand which has leaving groups. These metallocene compounds are used as catalyst precursors for the homopolymerization and copolymerization of olefins. It is also shown methods for supporting these metallocenes on inorganic solids in order to obtain solid catalyst systems for olefins polymerization processes in a heterogeneous phase.

    摘要翻译: 示出了具有下式的官能化桥的金属茂,其中M表示3,4,5或6族的过渡金属,L表示环戊二烯基型配体,Y表示卤素,并且可以在尿素L之间拥有一个或多个桥。至少 这些桥之一通过由卤素原子和硅,锗或锡原子之间的结合构成的基团官能化。 还示出了从相应的金属卤化物和具有离去基团的配体的前体合成这些茂金属化合物的方法。 这些茂金属化合物用作烯烃均聚和共聚合的催化剂前体。 还示出了在无机固体上支撑这些金属茂的方法,以获得在异相中烯烃聚合方法的固体催化剂体系