Patents by Inventor Hau-Nan Lee

Hau-Nan Lee 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: 10696850
    Abstract: The present invention comprises a crosslinkable polymer compound comprising a fluorinated Unit A, an optional hydrophilic Unit B, an optional acidic or neutralized acid Unit C, a crosslinkable pendant olefin group-containing Unit D, and an optional hydrophobic alkyl Unit E. Such polymeric compounds are useful as coatings additives such that, when the coating is applied to a substrate, the additive compound is allowed to first migrate to the surface and subsequently crosslink to form a durable oil-, dirt-, and water-repellent surface.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 30, 2020
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Anilkumar Raghavanpillai, James J. Hughes, Vincent Franco, John Russell Crompton, Jr., Brad M Rosen, Hau-Nan Lee, Michael Henry Ober, Dan Qing Wu
  • Patent number: 10011727
    Abstract: This invention provides methods and technology related to increased hiding power of a coating through mediating the interaction of the pigment with other system components including but not limited to other pigment particles, latex paint particles, latex binding particles, and organic or inorganic hollow particles. Organization and spacing are tailored via pH sensitive functionalities hosted on ligands or polymeric spacers that are located at/within the surface of one of the components.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: July 3, 2018
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Andrew Jay Duncan, Jelena Lasio, Hau-Nan Lee, Carl Andrew Menning, Brad M Rosen
  • Publication number: 20180118956
    Abstract: The present invention comprises a crosslinkable polymer compound comprising a fluorinated Unit A, an optional hydrophilic Unit B, an optional acidic or neutralized acid Unit C, a crosslinkable pendant olefin group-containing Unit D, and an optional hydrophobic alkyl Unit E. Such polymeric compounds are useful as coatings additives such that, when the coating is applied to a substrate, the additive compound is allowed to first migrate to the surface and subsequently crosslink to form a durable oil-, dirt-, and water-repellent surface.
    Type: Application
    Filed: April 28, 2016
    Publication date: May 3, 2018
    Inventors: ANILKUMAR RAGHAVANPILLAI, JAMES J. HUGHES, VINCENT FRANCO, JOHN RUSSELL CROMPTON, JR., BRAD M. ROSEN, HAU-NAN LEE, MICHAEL HENRY OBER, DAN QING WU
  • Patent number: 9777170
    Abstract: The present invention comprises a composition and method of use for providing cleanability to paint comprising an aqueous emulsion of Formula (I) wherein the composition of Formula (I) is a random copolymer; wherein said composition of formula (I) further comprises residue from a hydrophilic chain transfer agent. The compositions of the present invention provide durability to coating compositions, while also providing surface effects such as increased water and oil contact angles, enhanced dirt pickup resistance, and enhanced cleanability to the coating films. For these reasons, the composition of the present invention is particularly suitable for use as additives to exterior coatings and paints.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: October 3, 2017
    Assignee: THE CHEMOURS COMPANY TT, LLC
    Inventors: Anilkumar Raghavanpillai, Timothy Pellenbarg, Hau-Nan Lee, James J. Hughes, Kai Qi, John Russell Crompton, Jr., Brad M Rosen
  • Publication number: 20170066653
    Abstract: The disclosure provides a process for making hollow inorganic particles comprising: providing a recyclable template particle in an aqueous dispersion, wherein the recyclable template particle is prepared from an organic monomer; coating the recyclable template particle with a water-based silica precursor; maintaining the pH at about 2 to about 10 to form core/shell particles comprising a silica treatment on the recyclable template particle; removing the core/shell particles; and removing the recyclable template particle from the core/shell particles to form a hollow silica particle.
    Type: Application
    Filed: February 27, 2015
    Publication date: March 9, 2017
    Applicant: THE CHEMOURS COMPANY TT, LLC
    Inventors: JELENA LASIO, HAU-NAN LEE, BRAD M ROSEN, DEVIN T WHIPPLE, FRANCIS J. WOERNER
  • Publication number: 20150240090
    Abstract: The present invention comprises a composition and method of use for providing cleanability to paint comprising an aqueous emulsion of Formula (I) wherein the composition of Formula (I) is a random copolymer; wherein said composition of formula (I) further comprises residue from a hydrophilic chain transfer agent. The compositions of the present invention provide durability to coating compositions, while also providing surface effects such as increased water and oil contact angles, enhanced dirt pickup resistance, and enhanced cleanability to the coating films. For these reasons, the composition of the present invention is particularly suitable for use as additives to exterior coatings and paints.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 27, 2015
    Inventors: ANILKUMAR RAGHAVANPILLAI, Timothy Pellenbarg, Hau-Nan Lee, James J. Hughes, Kai Qi, John Russell Crompton, JR., Brad M. Rosen