Patents by Inventor Henry Stever Tremper, III

Henry Stever Tremper, III 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).

  • Low temperature curable melamine containing coating composition and the use thereof
    Patent number: 8114481
    Abstract: The present invention is directed to a melamine containing coating composition curable at ambient temperatures and suitable for coating plastic substrates. The present invention is also directed to a process for coating plastic substrates with a melamine containing coating composition curable at ambient temperatures.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: February 14, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Henry Stever Tremper, III, Valentina Gordin
  • LOW TEMPERATURE CURABLE MELAMINE CONTAINING COATING COMPOSITION AND THE USE THEREOF
    Publication number: 20110076407
    Abstract: The present invention is directed to a melamine containing coating composition curable at ambient temperatures and suitable for coating plastic substrates. The present invention is also directed to a process for coating plastic substrates with a melamine containing coating composition curable at ambient temperatures.
    Type: Application
    Filed: December 3, 2010
    Publication date: March 31, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Henry Stever Tremper, III, Valentina Gordin
  • Low temperature curable melamine containing coating composition and the use thereof
    Patent number: 7867617
    Abstract: The present invention is directed to a melamine containing coating composition curable at ambient temperatures and suitable for coating plastic substrates. The present invention is also directed to a process for coating plastic substrates with a melamine containing coating composition curable at ambient temperatures.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: January 11, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Henry Stever Tremper, III, Valentina Gordin
  • Low temperature curable melamine containing coating compostion and the use thereof
    Publication number: 20090042039
    Abstract: The present invention is directed to a melamine containing coating composition curable at ambient temperatures and suitable for coating plastic substrates. The present invention is also directed to a process for coating plastic substrates with a melamine containing coating composition curable at ambient temperatures.
    Type: Application
    Filed: September 25, 2007
    Publication date: February 12, 2009
    Inventors: Henry Stever Tremper, III, Valentina Gordin
  • Conductive primer composition for ambient cure
    Patent number: 7144526
    Abstract: The present invention provides electrically conductive and flexible primer compositions that harden to form conductive materials under room temperature or low bake temperature curing conditions. The primer composition contains solvents and 40–75% by weight of film forming binder and pigments in an overall pigment to binder weight ratio of about 1:100 to 100:100; wherein the binder contains (A) a flexible hydroxy containing polyester resin and (B) an organic polyisocyanate crosslinking agent; and wherein the pigments include electrically conductive pigments in a pigment to binder weight ratio of about 1:100 to 130:100 and the electrically conductive pigments consists essentially of a combination of graphite and conductive carbon black pigments in a graphite to carbon black weight ratio of about 120:1 to 1:1, and the composition forms a hard, flexible coating having a surface conductivity of at least 100 Ransburg units when cured at room temperature or low bake conditions.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: December 5, 2006
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Henry Stever Tremper, III, Henry A. Tronco, Jr., Valentina Gordin
  • Method of producing durable layered coatings
    Patent number: 6413588
    Abstract: The present invention relates to a process for producing a durable multi-layered coating on difficult-to-coat substrates, such as aluminum. The process includes subjecting the surface of the difficult-to-coat substrate to a adhesion promoting step, followed by applying an intermediate layer of flexible primer, which contains a polyester copolymer produced through a two-stage polymerization process. A mar resistant top layer of clear coating composition is then applied over the intermediate layer to produce the multi-layered durable coating on the difficult-to-coat substrate. If desired, the intermediate layer may be pigmented or it may be applied in the form of one or more patterned layers of different colors. Alternatively, one or more patterned layers of different colors may be applied over the intermediate layer before the application of the mar resistant top layer.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: July 2, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: William W. Pettus, Henry Stever Tremper, III, Henry A. Tronco, Jr.