Patents by Inventor Armin Rettig

Armin Rettig 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 refinishing defects in stoved enamels with powder coatings
    Patent number: 7018682
    Abstract: Method of repairing defective areas in a stoving lacquer coating, in which the defective area ready for repair lacquering is coated with a powder coating composition or with an aqueous powder coating slurry, and the applied powder coating is then melted and cured by irradiation with near infrared radiation (NIR).
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: March 28, 2006
    Assignee: E. I. duPont de Nemours and Company
    Inventors: Armin Rettig, Olaf Thiele
  • Process for recycling of powder coating waste
    Patent number: 6428843
    Abstract: A process for the recycling of polymeric powder coating waste involves the steps of contacting polymeric powder coating chips with the powder coating waste to form a combination, by applying the powder coating waste to at least a portion of the surface of the powder coating chips, followed by heating the combination to a temperature and for a period of time sufficient to firmly bond the powder coating waste to the powder coating chips.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: August 6, 2002
    Assignee: E. I. du Pont de Nemours & Company
    Inventors: Rene Graewe, Armin Rettig