Patents by Inventor Dan Qing Wu

Dan Qing Wu 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
  • 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: 8486219
    Abstract: The present disclosure pertains to a process for preparing a laminate comprising: providing a dried overlay and a base sheet wherein at least one of the dried overlay and the base sheet comprises a resin-impregnated, opaque, cellulose pulp-based sheet; applying a fluorourethane to the dried overlay to form a treated overlay; drying the treated overlay; and laminating the treated overlay to the base sheet. The disclosed process hereby produces a laminate whose outer surface is modified with the fluorourethane and the cleanability, oil repellency, and abrasion resistance of such a laminate is improved.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: July 16, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Dan Qing Wu, Jessica Chen-Ying Yen
  • Publication number: 20130079453
    Abstract: This disclosure relates to ink composition, having a viscosity of 0.02-13 Poise, comprising an inorganic pigment surface treated with alumina and at least one silicon based surface treatment selected from the group consisting of polysiloxane and polysiloxane block polymer to form a treated inorganic pigment, wherein the silicon based surface treatment is present in the amount of about 0.3 to about 1%, based on the total weight of the treated inorganic pigment; a binder resin having a glass transition temperature of less than 50° C., and comprising at least one adhesion promoting group; and a solvent based ink vehicle having the following solubility parameters using the MPa1/2 units: ?d of greater than about 15.9, a ?p of less than about 9.1 and a ?h of less than about 12.1. These inks have enhanced gloss and lower viscosity characteristics.
    Type: Application
    Filed: June 28, 2011
    Publication date: March 28, 2013
    Applicant: E I DuPont Nemours and Company
    Inventors: Daniel C Kraiter, Dan Qing Wu
  • Publication number: 20110151244
    Abstract: The disclosure provides a coating composition for outdoor applications having improved solar reflectivity and UV protection comprising a coating base, wherein the coating base comprises: (a) a colorant; and (b) an ultrafine-TiO2 having a median primary particle size (MPPS) of greater than about 70 nm.
    Type: Application
    Filed: September 29, 2009
    Publication date: June 23, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Dan Qing Wu, Joy Sawyer Bloom, John D. Connolly, JR.
  • Publication number: 20110061785
    Abstract: The present disclosure pertains to a process for preparing a laminate comprising: providing a dried overlay and a base sheet wherein at least one of the dried overlay and the base sheet comprises a resin-impregnated, opaque, cellulose pulp-based sheet; applying a fluorourethane to the dried overlay to form a treated overlay; drying the treated overlay; and laminating the treated overlay to the base sheet. The disclosed process hereby produces a laminate whose outer surface is modified with the fluorourethane and the cleanability, oil repellency, and abrasion resistance of such a laminate is improved.
    Type: Application
    Filed: June 17, 2009
    Publication date: March 17, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Dan Qing Wu, Jessica Chen-Ying Yen