Patents by Inventor Qingyun Qian

Qingyun Qian 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).

  • Polyethylene compositions with improved sealing performance and tear strength
    Patent number: 11643530
    Abstract: Embodiments relate to polyolefin compositions containing one or more high-density polyethylenes (HDPEs) and linear low-density polyethylenes (LLDPEs) and methods for forming the same. The polyolefin composition contains about 40 wt % to about 60 wt % of HDPE and about 40 wt % to about 60 wt % of LLDPE, by weight of the polyolefin composition. The HDPE has a density of greater than 0.93 g/cm3 and a melt index of about 0.2 dg/min to about 10 dg/min. The LLDPE has a density of less than 0.915 g/cm3 and a melt index of about 0.2 dg/min to about 10 dg/min. The polyolefin composition has a density of about 0.91 g/cm3 or greater, a melt index of about 0.5 dg/min to about 6 dg/min, and a Tw1?Tw2 value of about ?25° C. or less.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: May 9, 2023
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Dongming Li, Ching-Tai Lue, Qingyun Qian, Ling Ge, Gang Huang
  • Functionalized Propylene Based Elastomer Composition and Method of Making
    Publication number: 20230098921
    Abstract: A composition comprising a C2-C12 polyalphaolefin and a functionalized propylene-based elastomer comprising from about 4 to about 25 wt % units derived from one or more C2 or C4-C12 alpha-olefins; a triad tacticity greater than about 90%; a heat of fusion less than about 75 J/g; and a plurality of oxygen containing functional groups selected from carboxylic acids, anhydrides, ketones, carbonates, esters, ethers, lactones, and combinations thereof. Compositions containing the functionalized propylene-based elastomer and methods to produce the same are also disclosed.
    Type: Application
    Filed: December 14, 2020
    Publication date: March 30, 2023
    Inventors: Ying Ying Sun, Liang LI, Shanshan Zhang, Bin Zhao, Zhen Yu Gong, Yi Ping NI, Qingyun Qian, Peite BAO
  • POLYETHYLENE COMPOSITIONS WITH IMPROVED SEALING PERFORMANCE AND TEAR STRENGTH
    Publication number: 20210324185
    Abstract: Embodiments relate to polyolefin compositions containing one or more high-density polyethylenes (HDPEs) and linear low-density polyethylenes (LLDPEs) and methods for forming the same. The polyolefin composition contains about 40 wt % to about 60 wt % of HDPE and about 40 wt % to about 60 wt % of LLDPE, by weight of the polyolefin composition. The HDPE has a density of greater than 0.93 g/cm3 and a melt index of about 0.2 dg/min to about 10 dg/min. The LLDPE has a density of less than 0.915 g/cm3 and a melt index of about 0.2 dg/min to about 10 dg/min. The polyolefin composition has a density of about 0.91 g/cm3 or greater, a melt index of about 0.5 dg/min to about 6 dg/min, and a Tw1?Tw2 value of about ?25° C. or less.
    Type: Application
    Filed: April 12, 2021
    Publication date: October 21, 2021
    Inventors: Dongming LI, Ching-Tai Lue, Qingyun Qian, Ling Ge, Gang Huang