Patents by Inventor Evert Kramer

Evert Kramer 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).

  • Patent number: 6806302
    Abstract: The invention relates to a process for the continuous production of liquid coating compositions by introducing one or more low-solvent or solvent-free binders in a solid or molten state into an extruder in one stage, together with pigments and auxiliaries, wherein the components are mixed and dispersed at elevated temperature in a viscous state, then introducing proportions of binders and proportions or organic or inorganic solvents into the extruder in one or more following stages, discharging the mixture from the extruder and adding further solvents and optionally further components of the coating composition and homogenizing the process mixture in one or more rotor/stator mixers.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: October 19, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Evert Kramer, Friedrich Domke
  • Publication number: 20020193466
    Abstract: The invention relates to a process for the continuous production of liquid coating compositions by introducing one or more low-solvent or solvent-free binders in a solid or molten state into an extruder in one stage, together with pigments and auxiliaries, wherein the components are mixed and dispersed at elevated temperature in a viscous state, then introducing proportions of binders and proportions or organic or inorganic solvents into the extruder in one or more following stages, discharging the mixture from the extruder and adding further solvents and optionally further components of the coating composition and homogenizing the process mixture in one or more rotor/stator mixers.
    Type: Application
    Filed: June 13, 2001
    Publication date: December 19, 2002
    Inventors: Evert Kramer, Friedrich Domke
  • Patent number: 5288524
    Abstract: Known processes for coating hollow bodies such as cans are problematical in terms of productivity and contamination caused by high rotational speeds of the application rolls due to lacquer splashes and lacquer mist. These problems are solved by means of a process and a device for the application of several coatings to cylindrical hollow bodies by rolling the hollow bodies on an application device having a lacquer film wherein several hollow bodies roll on the lacquer film one after the other and wherein, for the application of at least the first coat of lacquer such hollow body rolls in the lacquer film which is progressively reduced by separation of lacquer on the application of lacquer to the preceding hollow body or bodies.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: February 22, 1994
    Assignee: Herberts G.m.b.H.
    Inventors: Evert Kramer, Hans-Jurgen Schlinsog