Patents by Inventor Donald Thomas Robertson

Donald Thomas Robertson 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).

  • Aqueous coating composition
    Patent number: 7678456
    Abstract: An aqueous coating composition including a polyurethane polymer which contains carboxylic acid groups, a crosslinking agent, a wetting agent, a slip aid, and a UV stabilizing agent is provided. Coatings prepared from the aqueous coating composition are durable and have low surface friction, flexibility at low temperatures, and adhesion to low surface energy substrates. A method of preparing a substrate coated with the aqueous coating composition and an article containing the coated substrate are also provided. The aqueous coating composition is useful for providing a protective coating with a low friction surface for automotive weatherstrip.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: March 16, 2010
    Assignee: Rohm and Haas Company
    Inventor: Donald Thomas Robertson
  • Aqueous coating composition
    Patent number: 7078102
    Abstract: An aqueous coating composition including a polyurethane polymer which contains carboxylic acid groups, a crosslinking agent, a wetting agent, a slip aid, and a UV stabilizing agent is provided. Coatings prepared from the aqueous coating composition are durable and have low surface friction, flexibility at low temperatures, and adhesion to low surface energy substrates. A method of preparing a substrate coated with the aqueous coating composition and an article containing the coated substrate are also provided. The aqueous coating composition is useful for providing a protective coating with a low friction surface for automotive weatherstrip.
    Type: Grant
    Filed: February 18, 2002
    Date of Patent: July 18, 2006
    Assignee: Rohm and Haas Company
    Inventor: Donald Thomas Robertson
  • Aqueous coating composition
    Publication number: 20020160203
    Abstract: An aqueous coating composition including a polyurethane polymer which contains carboxylic acid groups, a crosslinking agent, a wetting agent, a slip aid, and a UV stabilizing agent is provided. Coatings prepared from the aqueous coating composition are durable and have low surface friction, flexibility at low temperatures, and adhesion to low surface energy substrates. A method of preparing a substrate coated with the aqueous coating composition and an article containing the coated substrate are also provided. The aqueous coating composition is useful for providing a protective coating with a low friction surface for automotive weatherstrip.
    Type: Application
    Filed: February 18, 2002
    Publication date: October 31, 2002
    Inventor: Donald Thomas Robertson