Patents by Inventor Jingzhuang Wang

Jingzhuang Wang 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).

  • Catalyst for olefin polymerization and method of preparation thereof
    Patent number: 8344080
    Abstract: A catalyst for olefin polymerization and method of preparing the same are disclosed.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: January 1, 2013
    Inventors: Licai Wang, Zhanxian Gao, Wei Li, Guotong Zheng, Qingxin Dong, Riping Liu, Xiaohuan Wang, Nan Zhang, Jingzhuang Wang, Shimian Cai
  • CATALYST FOR OLEFIN POLYMERIZATION AND METHOD OF PREPARATION THEREOF
    Publication number: 20110301385
    Abstract: A catalyst for olefin polymerization and method of preparing the same are disclosed.
    Type: Application
    Filed: June 6, 2011
    Publication date: December 8, 2011
    Inventors: Licai Wang, Zhanxian Gao, Wei Li, Guotong Zheng, Qingxin Dong, Riping Liu, Xiaohuan Wang, Nan Zhang, Jingzhuang Wang, Shimian Cai
  • Catalyst for olefin polymerization and preparation thereof and polymerization process
    Patent number: 7964678
    Abstract: The catalyst for olefin polymerization contains three components A, B and C. The component A is a solid catalyst containing titanium, magnesium, chlorine element and an internal electron donor, the internal electron donor consists of 1,4-diether [2,2?-dialkoxy-1,1?-biphenyl, 2,2?-dialkoxy-1,1?-binaphthalene, 10,10?-dialkoxy-9,9-biphenanthrene]and organic acid ester or 1,3-diether [9,9-bis(methoxymethyl)fluorine, 2,2-dialky 1-1,3-dimethoxypropane]; the component B is an organoaluminum compound; the component C is external electron donor-organic silicon compound or the 1,4 aromatic diether. The catalyst has high catalytic activity, and can be adjusted in the range from 40,000 to 150,000 gPP/gCat when used in propylene polymerization. The polymer made therefrom has isotactivity of 80 to 99 percent and the molecular weight distribution can be adjusted in a wide range. The invention provides a novel method for preparing the 1,4 aromatic diether.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: June 21, 2011
    Inventors: Licai Wang, Zhanxian Gao, Wei Li, Guotong Zheng, Qingxin Dong, Riping Liu, Xiaohuan Wang, Nan Zhang, Jingzhuang Wang, Shimian Cai
  • Catalyst for Olefin Polymerization and Preparation Thereof and Polymerization Process
    Publication number: 20080161513
    Abstract: The catalyst for olefin polymerization contains three components A, B and C. The component A is a solid catalyst containing titanium, magnesium, chlorine element and an internal electron donor, the internal electron donor consists of 1,4-diether [2,2?-dialkoxy-1,1?-biphenyl, 2,2?-dialkoxy-1,1?-binaphthalene, 10,10?-dialkoxy-9,9-biphenanthrene] and organic acid ester or 1,3-diether [9,9-bis(methoxymethyl)fluorine, 2,2-dialky 1-1,3-dimethoxypropane]; the component B is an organoaluminum compound; the component C is external electron donor-organic silicon compound or the 1,4 aromatic diether. The catalyst has high catalytic activity, and can be adjusted in the range from 40,000 to 150,000 gPP/gCat when used in propylene polymerization. The polymer made therefrom has isotactivity of 80 to 99 percent and the molecular weight distribution can be adjusted in a wide range. The invention provides a novel method for preparing the 1,4 aromatic diether.
    Type: Application
    Filed: February 24, 2006
    Publication date: July 3, 2008
    Applicants: YINGKOU XIANGYANG CATALYST CO., LTD., DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Licai Wang, Zhanxian Gao, Wei Li, Guotong Zheng, Qingxin Dong, Riping Liu, Xiaohuan Wang, Nan Zhang, Jingzhuang Wang, Shimian Cai