Patents by Inventor Scott W. Loper

Scott W. Loper 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 primerless windshield sealant adhesion over a carbamate clearcoat
    Patent number: 7144631
    Abstract: A method for adhering windshield sealants directly over a basecoat/clearcoat finish in which the clearcoat comprises a carbamate polymer or oligomer.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: December 5, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jun Lin, Leatrese Dionne Hopkins, David M. Zukowski, Scott W. Loper
  • Scratch and mar resistant low VOC coating composition
    Publication number: 20040185269
    Abstract: A curable coating composition, and process of application thereof, particularly useful as a clearcoating applied over a pigmented basecoat that has significantly decreased VOC and improved scratch, etch, and mar resistance, is provided in accordance with the present invention, which is contains a silane functional oligomeric or polymeric material comprising carbamate groups and a crosslinking component comprising groups that are reactive with the carbamate groups.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 23, 2004
    Inventors: Scott W. Loper, Peter William Uhlianuk
  • Acid etch resistant coatings containing polyurethane polyols
    Patent number: 5175227
    Abstract: A high solids coating composition suitable for use, for example, as a high performance automotive coating is provided, which comprises (1) a particular polyurethane polyol which is the reaction product of an asymmetric diol component and an isocyanate component, and (2) an hydroxyl groups-reactive crosslinking agent. When formulated as a one-pack coating preferably with an aminoplast crosslinking agent, these coating compositions possess a number of desirable properties including excellent acid etch resistance.
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: December 29, 1992
    Assignee: Akzo N.V.
    Inventors: John L. Gardon, Peter W. Uhlianuk, Scott W. Loper
  • Polyurethane polyols and high solids coatings therefrom
    Patent number: 5155201
    Abstract: A polyurethane polyol is provided, which is the reaction product of a particular isocyanate component and a particular diol component in a specified ratio, which polyol component is selected from substantially monomeric diols wherein the hydroxyl groups are separated by 3 carbon atoms or less. Such polyurethane polyols possess a desirable spectrum of molecular weight properties, making them especially suitable for use in formulating high solids, high performance coatings.
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: October 13, 1992
    Assignee: Akzo N.V.
    Inventors: John L. Gardon, Scott W. Loper, Peter W. Uhlianuk, Frederick H. Walker