Patents by Inventor Chunfa Li

Chunfa Li 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: 12043727
    Abstract: The present invention relates to a polymer composition, comprising a polypropylene and a stabilizing additive mixture, wherein said stabilizing additive mixture comprises: i) a thioether compound according to Formula I, ii) a Hindered Amine Light Stabilizer (HALS) comprising a substituted amine group; and iii) an inorganic acid scavenger. The present invention further relates to an article comprising said polymer composition, and the use of said polymer composition for the housing for antennas for wireless communication.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: July 23, 2024
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Jing Guo, Sarah Van Mierloo, Chunfa Li, Ji Zhou, Chaodong Jiang, Christelle Marie Hélène Grein
  • Publication number: 20230407072
    Abstract: A polypropylene composition includes (A) a polypropylene, (B1) a first copolymer of ethylene and ?-olefin having a density of 0.891 to 0.912 g/cm3, and (B2) a second copolymer of ethylene and ?-olefin having a density in the range of 0.859 to 0.881 g/cm3, wherein the amount of (A) the polypropylene is in the range from 71 to 87 wt % based on the total amount of the polymer composition, and wherein the ratio between the amount of the (B2) second copolymer of ethylene and ?-olefin and the amount of the (B1) first copolymer of ethylene and ?-olefin is in the range from 3.8 to 1.0. The polypropylene composition has improved stress whitening resistance. A battery case including the polypropylene composition is also disclosed.
    Type: Application
    Filed: December 6, 2021
    Publication date: December 21, 2023
    Inventors: Ting Huang, Chaodong Jiang, Yang Yang, Hongtao Shi, Xin Kong, Christelle Marie Hélène Grein, Chunfa Li
  • Publication number: 20230044121
    Abstract: The present invention relates to a polymer composition comprising polyolefin based elastomer, a polyolefin and CaCO3. The present invention further relates to the use of said polymer composition. The present invention further relates to a process for the preparation of an article comprising said polymer composition. The present invention further relates to the use of said polymer composition.
    Type: Application
    Filed: December 22, 2020
    Publication date: February 9, 2023
    Inventors: Ting Huang, Weisong Gao, Chaodong Jiang, Yunbi Bao, Yunbo Zhang, Chunfa Li
  • Patent number: 11479663
    Abstract: The invention relates to a composition comprising: (A) a propylene-based polymer which is a propylene homopolymer or a propylene copolymer consisting of at least 90 wt % of propylene monomer units and at most 10 wt % of ethylene monomer units and/or an ?-olefin monomer units having 4 to 10 carbon atoms, (B) a terpolymer of propylene, an ?-olefin having 4 to 10 carbon atoms and ethylene and (C) a copolymer of ethylene and an ?-olefin having 4 to 10 carbon atoms, wherein the copolymer (C) has a density of at least 0.880 g/cm3, wherein the amount of the propylene-based polymer (A) is at least 60 wt % with respect to the total composition.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: October 25, 2022
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Jing Guo, Xiqiang Liu, Chaodong Jiang, Shengying Qian, Chunfa Li
  • Publication number: 20220073717
    Abstract: The present invention relates to a polymer composition, comprising a polypropylene and a stabilizing additive mixture, wherein said stabilizing additive mixture comprises: i) a thioether compound according to Formula I, ii) a Hindered Amine Light Stabilizer (HALS) comprising a substituted amine group; and iii) an inorganic acid scavenger. The present invention further relates to an article comprising said polymer composition, and the use of said polymer composition for the housing for antennas for wireless communication.
    Type: Application
    Filed: December 19, 2019
    Publication date: March 10, 2022
    Inventors: Jing GUO, Sarah VAN MIERLOO, Chunfa LI, Ji ZHOU, Chaodong JIANG, Christelle Marie Hélène GREIN
  • Publication number: 20210301115
    Abstract: The invention relates to a composition comprising: (A) a propylene-based polymer which is a propylene homopolymer or a propylene copolymer consisting of at least 90 wt % of propylene monomer units and at most 10 wt % of ethylene monomer units and/or an ?-olefin monomer units having 4 to 10 carbon atoms, (B) a terpolymer of propylene, an ?-olefin having 4 to 10 carbon atoms and ethylene and (C) a copolymer of ethylene and an ?-olefin having 4 to 10 carbon atoms, wherein the copolymer (C) has a density of at least 0.880 g/cm3, wherein the amount of the propylene-based polymer (A) is at least 60 wt % with respect to the total composition.
    Type: Application
    Filed: July 30, 2018
    Publication date: September 30, 2021
    Inventors: Jing Guo, Xiqiang Liu, Chaodong Jiang, Shengying Qian, Chunfa Li