Patents by Inventor Yuehan Hu

Yuehan Hu 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: 11970629
    Abstract: An aqueous dispersion of multistage polymer particles comprising a specific oligomer prepared from polymerization of monomers comprising an alkoxylated (meth)acrylate providing aqueous coating compositions with both good flow-and-leveling property and extended open time.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: April 30, 2024
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Yan Li, Tao Wang, Junyu Chen, Tao Wang, James C. Bohling, Zhi Juan Gong, Yuehan Hu
  • Publication number: 20230312969
    Abstract: The present invention is a composition comprising an aqueous dispersion of polymer particles, polymeric organic crosslinked microspheres, and colloidal silica particles. The composition is useful in coating compositions for exterior applications to achieve a balance of excellent dirt pickup resistance and durability performance under accelerated testing conditions.
    Type: Application
    Filed: July 31, 2020
    Publication date: October 5, 2023
    Applicant: The Dow Chemical Company
    Inventors: Caifeng Wang, Jianming Xu, Kok Chiew Poh, Yuehan Hu, Tao Wang, Juan F. Callejas, Philip R. Harsh, James C. Bohling, Andrew J. Swartz, Partha S. Majumdar, Joseph Tanzer
  • Publication number: 20230279213
    Abstract: An aqueous composition comprising: (a) an aqueous dispersion of hybrid polymer particles with a fluorine content of 5% or more, wherein the hybrid polymer particles comprise, based on the weight of the hybrid polymer particles, (i) greater than 20% to 75% by weight of a first polymer component comprising a fluoroethylene vinyl ether copolymer, and (ii) from 25% to less than 80% by weight of a second polymer component, wherein the second polymer component is an acrylic copolymer comprising, based on the weight of the acrylic copolymer, from 0.15% to 1.2% by weight of structural units of a phosphorus-containing acid monomer, a salt thereof, or mixtures thereof, and structural units of a monoethylenically unsaturated nonionic monomer; and (b) from 5% to 30% by dry weight of colloidal silica, based on the total weight of the hybrid polymer particles and the dry weight of the colloidal silica. The aqueous composition can provide coatings with balanced dirt pick-up resistance and durability properties.
    Type: Application
    Filed: August 31, 2020
    Publication date: September 7, 2023
    Inventors: Daoshu Lin, Caifeng Wang, Jianming Xu, Yuehan Hu
  • Publication number: 20230021323
    Abstract: A multistage emulsion polymer comprising a first polymer and a second polymer comprising structural units of a nitrogen-containing heterocyclic monomer at specific weight ratios of the first polymer to the second polymer and a Tg difference between the first and second polymers; the multistage emulsion polymer suitable for use in coating applications to provide coating films with improved dirt pick-up resistance without compromising film formation properties.
    Type: Application
    Filed: December 25, 2019
    Publication date: January 26, 2023
    Inventors: Han Liu, Yuehan Hu, Zhi Juan Gong, Ling Li, Xiangting Dong, Hengtong Wei
  • Publication number: 20220275208
    Abstract: An aqueous dispersion of polymeric particles comprising a specific emulsion polymer and a hydroxyl-terminated polysiloxane, and an aqueous coating composition comprising the aqueous dispersion providing coatings made therefrom with improved water resistance, anti-corrosion, and water repellency properties.
    Type: Application
    Filed: September 9, 2019
    Publication date: September 1, 2022
    Applicants: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Yuehan Hu, Yan Li, Zhi Juan Gong, James C. Bohling, Ling Li
  • Publication number: 20220235215
    Abstract: A stable aqueous dispersion comprising an emulsion polymer and a specific amount of a linear siloxane, a cyclic siloxane, or mixtures thereof; an aqueous coating composition comprising the aqueous dispersion providing coatings with improved dirt pick-up resistance and long-term durability.
    Type: Application
    Filed: July 1, 2019
    Publication date: July 28, 2022
    Inventors: Wenke Miao, Yuehan Hu, Tao Wang, Caifeng Wang, Xiangting Dong, Shaoguang Feng, Zhihua Liu
  • Publication number: 20210253893
    Abstract: An aqueous dispersion of multistage polymer particles comprising a specific oligomer prepared from polymerization of monomers comprising an alkoxylated (meth)acrylate providing aqueous coating compositions with both good flow-and-leveling property and extended open time.
    Type: Application
    Filed: July 10, 2018
    Publication date: August 19, 2021
    Inventors: Yan Li, Tao Wang, Junyu Chen, Tao Wang, James C. Bohling, Zhi Juan Gong, Yuehan Hu
  • Publication number: 20190276676
    Abstract: An aqueous polymer composition and a coating composition comprising the aqueous polymer composition and affording coatings with improved efflorescence properties.
    Type: Application
    Filed: September 29, 2016
    Publication date: September 12, 2019
    Inventors: Yuehan Hu, Han Liu, Xiangting Dong, Yujiang Wang
  • Patent number: 10017663
    Abstract: A polyurethane/acrylic hybrid dispersion comprising a polyurethane dispersion, acrylic monomers and ethylenically unsaturated phosphorus containing monomers. The weight ratio of the solid content of the polyurethane dispersion to the acrylic monomers and the ethylenically unsaturated phosphorus containing monomers is from 3:7 to 7:3. A process of making the polyurethane/acrylic hybrid dispersion.
    Type: Grant
    Filed: September 22, 2013
    Date of Patent: July 10, 2018
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Yuehan Hu, Jinyuan Zhang, Xiangting Dong, Yujiang Wang
  • Publication number: 20160257847
    Abstract: A polyurethane/acrylic hybrid dispersion comprising a polyurethane dispersion, acrylic monomers and ethylenically unsaturated phosphorus containing monomers. The weight ratio of the solid content of the polyurethane dispersion to the acrylic monomers and the ethylenically unsaturated phosphorus containing monomers is from 3:7 to 7:3. A process of making the polyurethane/acrylic hybrid dispersion.
    Type: Application
    Filed: September 22, 2013
    Publication date: September 8, 2016
    Applicants: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Yuehan Hu, Jinyuan Zhang, Xiangting Dong, Yujiang Wang