Patents by Inventor Sape Kwesi Quashie

Sape Kwesi Quashie 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).

  • Method for achieving recoat adhesion over a fluorinated topcoat
    Patent number: 7704606
    Abstract: A method for repairing a basecoat/clearcoat finish or coating comprised of a fluorinated organosilane topcoat. A fluorinated urethane additive is added to the fluorinated organosilane topcoat composition to improve recoat adhesion with the repair basecoat.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: April 27, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: William Frank Graham, Douglas Robert Anton, Jeffery W. Johnson, Michael Joseph Michalczyk, Sape Kwesi Quashie
  • Method for achieving recoat adhesion over a fluorinated topcoat
    Publication number: 20080131595
    Abstract: A method for repairing a basecoat/clearcoat finish or coating comprised of a fluorinated organosilane topcoat. A fluorinated urethane additive is added to the fluorinated organosilane topcoat composition to improve recoat adhesion with the repair basecoat.
    Type: Application
    Filed: February 4, 2008
    Publication date: June 5, 2008
    Inventors: William F. Graham, Douglas Robert Anton, Jeffery W. Johnson, Michael Joseph Michalczyk, Sape Kwesi Quashie
  • Method for achieving recoat adhesion over a fluorinated topcoat
    Patent number: 7348389
    Abstract: A method for repairing a basecoat/clearcoat finish or coating comprised of a fluorinated organosilane topcoat. A fluorinated urethane additive is added to the fluorinated organosilane topcoat composition to improve recoat adhesion with the repair basecoat.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: March 25, 2008
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: William F. Graham, Douglas Robert Anton, Jeffery W. Johnson, Michael Joseph Michalczyk, Sape Kwesi Quashie
  • Coating compositions containing a fluorinated organosilane polymer
    Patent number: 7288282
    Abstract: A coating composition containing a film-forming organosilane polymer, optionally a non-aqueous dispersed polymer, and a crosslinking agent selected from one or both of an organic polyisocyanate and melamine crosslinker. Fluorine functionalities are incorporated in the organosilane polymer to enhance soil resistance and cleanability. The coating composition can be used as a clearcoat over a conventional pigmented basecoat. The coating composition provides improved soil resistance and cleanability.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: October 30, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: William F. Graham, Douglas Robert Anton, Jeffery W. Johnson, Michael Joseph Michalczyk, Sape Kwesi Quashie
  • Method for achieving recoat adhesion over a fluorinated topcoat
    Patent number: 6933005
    Abstract: A method for repairing a basecoat/clearcoat finish or coating comprised of a fluorinated organosilane topcoat. A fluorourethane star polyester additive is added to the fluorinated organosilane topcoat composition to improve recoat adhesion with the repair basecoat.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: August 23, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: William F. Graham, Douglas Robert Anton, Jeffery W. Johnson, Michael Joseph Michalczyk, Sape Kwesi Quashie
  • Acrylic-melamine-functionalized oligomer coating composition
    Patent number: 5747590
    Abstract: An improved coating composition having particularly good mar resistance when applied to an automotive surface, the composition comprising acrylic polymer(s), melamine, and a crosslinkable, aliphatic oligomer having a weight average molecular weight not exceeding about 3,000.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: May 5, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Patrick Henry Corcoran, Isidor Hazan, Sape Kwesi Quashie