Patents by Inventor Jitao Chen

Jitao Chen 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).

  • Polymer-modified cementitious composition
    Patent number: 11352296
    Abstract: A polymer-modified cementitious composition comprising a specific aqueous polymer dispersion and a cementitious material, and such polymer-modified cementitious composition having low ammonia release and providing coating membranes made therefrom with balanced tensile strength and elongation at break.
    Type: Grant
    Filed: April 28, 2018
    Date of Patent: June 7, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Jitao Chen, Yan Li, Ke Shi, Tao Wang, Tong Sun, Shaoguang Feng, Xiaohong Zhang
  • POLYMER-MODIFIED CEMENTITIOUS COMPOSITION
    Publication number: 20210139372
    Abstract: A polymer-modified cementitious composition comprising a specific aqueous polymer dispersion and a cementitious material, and such polymer-modified cementitious composition having low ammonia release and providing coating membranes made therefrom with balanced tensile strength and elongation at break.
    Type: Application
    Filed: April 28, 2018
    Publication date: May 13, 2021
    Inventors: Jitao Chen, Yan Li, Ke Shi, Tao Wang, Tong Sun, Shaoguang Feng, Xiaohong Zhang
  • Method for reducing odoriferous and/or toxic residual monomer in a latex
    Patent number: 10023662
    Abstract: A new and efficient toxicity and/or odor reducing method for ethyl acrylate and/or acrylonitrile containing aqueous polymer dispersion is disclosed, which comprises contacting a sufficient amount of an ethyl acrylate/acrylonitrile scavenging compound with a stable aqueous dispersion of a polymer to form a polymeric dispersion that contains less than 1 ppm of ethyl acrylate and less than 1 ppm acrylonitrile; wherein the polymer contains a) polymerized units of acylonitrile and/or ethyl acrylate and b) at least 5 ppm of ethyl acrylate and/or acrylonitrile monomers; and wherein the ethyl acrylate/acrylonitrile scavenging compound are contacted with the dispersion independently from contact of the dispersion with any redox pairs.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: July 17, 2018
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Tingke Zhang, Jitao Chen, Minghe Li
  • METHOD FOR REDUCING ODORIFEROUS AND/OR TOXIC RESIDUAL MONOMER IN A LATEX
    Publication number: 20170190809
    Abstract: A new and efficient toxicity and/or odor reducing method for ethyl acrylate and/or acrylonitrile containing aqueous polymer dispersion is disclosed, which comprises contacting a sufficient amount of an ethyl acrylate/acrylonitrile scavenging compound with a stable aqueous dispersion of a polymer to form a polymeric dispersion that contains less than 1 ppm of ethyl acrylate and less than 1 ppm acrylonitrile; wherein the polymer contains a) polymerized units of acylonitrile and/or ethyl acrylate and b) at least 5 ppm of ethyl acrylate and/or acrylonitrile monomers; and wherein the ethyl acrylate/acrylonitrile scavenging compound are contacted with the dispersion independently from contact of the dispersion with any redox pairs.
    Type: Application
    Filed: November 2, 2016
    Publication date: July 6, 2017
    Inventors: Tingke Zhang, Jitao Chen, Minghe Li
  • Method for reducing odoriferous and/or toxic residual monomer in a latex
    Patent number: 9512241
    Abstract: The present invention relates to a new and efficient toxicity and/or odor reducing method for ethyl acrylate and/or acrylonitrile contained aqueous polymer dispersion.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: December 6, 2016
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Tingke Zhang, Jitao Chen, Minghe Li
  • POLYURETHANE/ACRYLIC HYBRID DISPERSIONS FOR ROOF COATINGS AND THEIR PREPARATION
    Publication number: 20150045491
    Abstract: The present invention provides a process for making polyurethane/acrylic hybrid dispersions useful in high PVC coatings with excellent DPUR and water swelling performance, wherein acid monomers are used in acrylic polymerization.
    Type: Application
    Filed: March 22, 2012
    Publication date: February 12, 2015
    Inventors: Jiguang Zhang, Jitao Chen, Fujun Lu, Wei Lu, Shaoguang Feng, Joseph M. Rokowski, Tong Sun, Loganathan Ravisanker
  • METHOD FOR REDUCING ODORIFEROUS AND/OR TOXIC RESIDUAL MONOMER IN A LATEX
    Publication number: 20140256851
    Abstract: The present invention relates to a new and efficient toxicity and/or odor reducing method for ethyl acrylate and/or acrylonitrile contained aqueous polymer dispersion.
    Type: Application
    Filed: October 24, 2011
    Publication date: September 11, 2014
    Inventors: Tingke Zhang, Jitao Chen, Minghe Li