Patents by Inventor Yongtai Ling

Yongtai Ling has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9951157
    Abstract: Spherical carriers for an olefin polymerization catalyst, catalyst components, catalysts, and preparation methods therefor are disclosed. The method for preparing the spherical carriers comprises the following steps: (1) reacting, in the presence of at least one polymeric dispersion stabilizer, a magnesium halide with an organic compound containing active hydrogen to form a complex solution; (2) reacting said complex solution with an alkylene oxide-type compound to directly precipitate solid particles; and (3) recovering the solid particles to obtain spherical carriers. When a catalyst prepared by using the present spherical carrier is used in propylene polymerization, said catalyst exhibits high polymerization activity and high stereo-directing ability.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: April 24, 2018
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Weili Li, Xianzhi Xia, Yuexiang Liu, Yongtai Ling, Jin Zhao, Jigui Zhang, Futang Gao, Ping Gao, Yang Tan, Renqi Peng, Zhihui Zhang, Jie Lin, Ruilin Duan, Changyou Ma
  • Patent number: 9809663
    Abstract: The present invention provides a catalyst component for olefin polymerization and a preparation method thereof, and a catalyst for olefin polymerization and an application thereof. The catalyst component for olefin polymerization comprises reaction products of the following components: (1) a solid component; (2) at least one titanium compound; and (3) at least two internal electron donors, wherein the solid component comprises a magnesium compound represented by formula (1) and an epoxide represented by formula (2), wherein R1 is a C1-C12 linear or branched alkyl; R2 and R3 are identical or different, and are independently hydrogen or unsubstituted or halogen-substituted C1-C5 linear or branched alkyl; X is halogen; m is in a range of from 0.1 to 1.9, n is in a range of from 0.1 to 1.9, and m+n=2.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: November 7, 2017
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING REAEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Xianzhi Xia, Jin Zhao, Weili Li, Yuexiang Liu, Yongtai Ling, Ping Gao, Yang Tan, Futang Gao, Renqi Peng, Jigui Zhang
  • Publication number: 20160264694
    Abstract: The present invention provides a catalyst component for olefin polymerization and a preparation method thereof, and a catalyst for olefin polymerization and an application thereof. The catalyst component for olefin polymerization comprises reaction products of the following components: (1) a solid component; (2) at least one titanium compound; and (3) at least two internal electron donors, wherein the solid component comprises a magnesium compound represented by formula (1) and an epoxide represented by formula (2), wherein R1 is a C1-C12 linear or branched alkyl; R2 and R3 are identical or different, and are independently hydrogen or unsubstituted or halogen-substituted C1-C5 linear or branched alkyl; X is halogen; m is in a range of from 0.1 to 1.9, n is in a range of from 0.1 to 1.9, and m+n=2.
    Type: Application
    Filed: October 17, 2014
    Publication date: September 15, 2016
    Inventors: Xianzhi Xia, Jin Zhao, Weili Li, Yuexiang Liu, Yongtai Ling, Ping Gao, Yang Tan, Futang Gao, Renqi Peng, Jigui Zhang
  • Publication number: 20160251457
    Abstract: Spherical carriers for an olefin polymerization catalyst, catalyst components, catalysts, and preparation methods therefor are disclosed. The method for preparing the spherical carriers comprises the following steps: (1) reacting, in the presence of at least one polymeric dispersion stabilizer, a magnesium halide with an organic compound containing active hydrogen to form a complex solution; (2) reacting said complex solution with an alkylene oxide-type compound to directly precipitate solid particles; and (3) recovering the solid particles to obtain spherical carriers. When a catalyst prepared by using the present spherical carrier is used in propylene polymerization, said catalyst exhibits high polymerization activity and high stereo-directing ability.
    Type: Application
    Filed: October 17, 2014
    Publication date: September 1, 2016
    Inventors: Weili Li, Xianzhi Xia, Yuexiang Liu, Yongtai Ling, Jin Zhao, Jigui Zhang, Futang Gao, Ping Gao, Yang Tan, Renqi Peng, Zhihui Zhang, Jie Lin, Ruilin Duan, Changyou Ma
  • Patent number: 9068026
    Abstract: A magnesium halide adduct is provided, comprising at least one compound of the formula MgXY, at least one compound of the formula ROH, methanol, at least one modifying agent chosen from DOE and o-hydroxy benzoates, and optionally water. Also provided herein are a catalyst component comprising the magnesium halide adduct, a catalyst for olefin polymerization comprising the catalyst component; the respective processes for preparing the magnesium halide adduct and the catalyst component; use of the magnesium halide adduct for preparing the catalyst component, use of the catalyst component in a catalyst for olefin polymerization and use of the catalyst in olefin polymerization; and a process of olefin polymerization.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: June 30, 2015
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Xianzhi Xia, Yuexiang Liu, Jin Zhao, Jigui Zhang, Yongtai Ling, Weili Li, Suzhen Qiao, Yang Tan, Renqi Peng, Ping Gao, Futang Gao, Zhihui Zhang
  • Patent number: 8541333
    Abstract: A catalyst component for olefin polymerization comprising an ?-cyanosuccinate compound as an internal electron donor, a catalyst comprising the catalyst component, and use of the catalyst in olefin polymerization. When used in propylene polymerization, the catalyst can exhibit good catalytic activity and good hydrogen response, and the resulting polymer can have a good isotacticity and a good molecular weight distribution.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: September 24, 2013
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Lunjia Xie, Yongtai Ling, Yu Tian, Zaixing Feng, Siyuan Zhao, Qing Hu, Zhufang Sun, Yu Kang
  • Publication number: 20120302708
    Abstract: A magnesium halide adduct is provided, comprising at least one compound of the formula MgXY, at least one compound of the formula ROH, methanol, at least one modifying agent chosen from DOE and o-hydroxy benzoates, and optionally water. Also provided herein are a catalyst component comprising the magnesium halide adduct, a catalyst for olefin polymerization comprising the catalyst component; the respective processes for preparing the magnesium halide adduct and the catalyst component; use of the magnesium halide adduct for preparing the catalyst component, use of the catalyst component in a catalyst for olefin polymerization and use of the catalyst in olefin polymerization; and a process of olefin polymerization.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 29, 2012
    Inventors: Xianzhi XIA, Yuexiang LIU, Jin ZHAO, Jigui ZHANG, Yongtai LING, Weili LI, Suzhen QIAO, Yang TAN, Renqi PENG, Ping GAO, Futang GAO, Zhihui ZHANG
  • Publication number: 20110040051
    Abstract: A catalyst component for olefin polymerization comprising an ?-cyanosuccinate compound as an internal electron donor, a catalyst comprising the catalyst component, and use of the catalyst in olefin polymerization. When used in propylene polymerization, the catalyst can exhibit good catalytic activity and good hydrogen response, and the resulting polymer can have a good isotacticity and a good molecular weight distribution.
    Type: Application
    Filed: August 13, 2010
    Publication date: February 17, 2011
    Inventors: Lunjia XIE, Yongtai Ling, Yu Tian, Zaixing Feng, Siyuan Zhao, Qing Hu, Zhufang Sun, Yu Kang