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    Internal electron donor compound for preparing α-olefin polymerization catalyst component
    2.
    发明授权
    Internal electron donor compound for preparing α-olefin polymerization catalyst component 有权

    公开(公告)号：US10287371B2

    公开(公告)日：2019-05-14

    申请号：US15132050

    申请日：2016-04-18

    Applicant: YINGKOU XIANGYANG CATALYST CO., LTD ,  DALIAN UNIVERSITY OF TECHNOLOGY

    Inventor： Licai Wang ,  Zhanxian Gao ,  Rubing Han ,  Tianxiang Gao ,  Qiuju Chen ,  Limei Yu ,  Wei Li ,  Guotong Zheng ,  Qingxin Dong

    IPC: C08F110/06 ,  C07C43/168 ,  C07C43/20 ,  C07C69/80

    Abstract: An internal electron donor compound for preparing α-olefin polymerization catalyst component, including two kinds of electron donors; the proportion of the two kinds of electron donors in the compounding preparation of the catalyst is determined via designed experiments so as to obtain a catalyst component having good comprehensive performance or a particular performance. The electron donor compound of the present invention can be used in the preparation of α-olefin polymerization and co-polymerization catalyst component, particular the preparation of propylene polymerization catalyst component, and is applicable to prepare the propylene polymerization catalyst component by reacting magnesium chloride-ethanols complex compound carrier with titanium tetrachloride and electron donors, or to directly prepare the propylene polymerization catalyst component by reacting magnesium chloride, alcohols, titanium tetrachloride, and internal electron donor. In addition, also provided is a theoretical basis for selecting a proper electron donor combination from a plurality of electron donors.

    Method for purifying dioctyl phthalate
    7.
    发明授权
    Method for purifying dioctyl phthalate 有权

    公开(公告)号：US09718758B2

    公开(公告)日：2017-08-01

    申请号：US14892728

    申请日：2014-06-04

    Applicant: SABIC BASIC INDUSTRIES CORPORATION

    Inventor： Mubarik Ali Bashir ,  Mohammad Rafi ,  Emmanuel Osei-Twun

    IPC: C07C67/48 ,  C07C67/56 ,  C07C69/80 ,  C08K5/12

    CPC classification number: C07C67/56 ,  C07C69/80 ,  C08K5/12

    Abstract: Disclosed is a method of reducing the ultraviolet-light absorbing properties of a composition comprising dioctyl phthalate, the method comprising (a) obtaining a composition comprising dioctyl phthalate and phthalide, wherein said composition has an absorbance of greater than 0.1 at a wavelength of about from 230 to 360 nm, (b) contacting the composition with activated carbon, silica gel, or diatomaceous earth, for a sufficient amount of time to allow the phthalide to contact the activated carbon, silica gel, or diatomaceous earth, and (c) removing the composition from the activated carbon, silica gel, or diatomaceous earth, wherein the composition obtained from step (c) has an absorbance equal to or less than about 0.1 at a wavelength of about from 230 to 360 nm and has a reduced amount of phthalide when compared with the composition from step (a).

    HYBRID POLYESTER-POLYETHER POLYOLS
    8.
    发明申请
    HYBRID POLYESTER-POLYETHER POLYOLS 有权
    混合聚酯聚醚多元醇

    公开(公告)号：US20130035467A1

    公开(公告)日：2013-02-07

    申请号：US13640429

    申请日：2011-04-21

    Applicant: Pavel L. Shutov ,  Jorge Jimenez ,  Hanno R. Van der Wal ,  Francois M. Casati

    Inventor： Pavel L. Shutov ,  Jorge Jimenez ,  Hanno R. Van der Wal ,  Francois M. Casati

    IPC: C07C69/80 ,  C08G18/32

    CPC classification number: C08G18/4261 ,  C08G18/4866 ,  C08G63/42 ,  C08G63/672 ,  C08G63/914 ,  C08G65/2603 ,  C08G65/2663 ,  C08G65/2672 ,  C08G65/2678 ,  C08G2101/0025 ,  C08J9/141 ,  C08J2375/06

    Abstract: A process for preparing a hybrid polyester-polyether polyol comprises contacting a carboxyl group-containing component and an epoxide, optionally in the presence of one or more of a double metal cyanide catalyst, a superacid catalyst, a metal salt of a superacid catalyst and/or a tertiary amine catalyst, under conditions such that a hybrid polyester-polyether polyol is formed. The hybrid polyester-polyether polyol offers the advantages of both ester and ether functionalities when used in a polyurethane formulation, thus enhancing physical properties. The process results in products having narrow polydispersity, a low acid number and unsaturation, and reduced byproduct formation, particularly when the double metal cyanide catalyst is employed.

    Abstract translation: 制备混合聚酯 - 聚醚多元醇的方法包括任选地在一种或多种双金属氰化物催化剂，超酸催化剂，超酸催化剂的金属盐和/或其中的一种或多种的存在下使含羧基的组分和环氧化物接触， 或叔胺催化剂，在形成混合聚酯 - 聚醚多元醇的条件下进行。 当用于聚氨酯配方时，混合聚酯 - 聚醚多元醇具有酯和醚官能团的优点，从而提高物理性能。 该方法产生具有窄多分散性，低酸值和不饱和度的产物，以及减少的副产物形成，特别是当使用双金属氰化物催化剂时。

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