Patents by Inventor Gunther Tappeiner

Gunther Tappeiner 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).

  • Publication number: 20070055040
    Abstract: The invention relates to a method for synthesizing a liquid melamine resin, wherein: a) melamine, at least one aldehyde and at least one alcohol are fed to at least one first reactor operated continuously, in particular at least one agitated tank operated continuously and are reacted together, b) the reaction product that is obtained is fed to a solid-liquid phase separation device, c) a solids-rich phase that has been produced in the solid-liquid phase separation is fed back to at least one first reactor, and d) a phase devoid of solids that has been produced in the solid-liquid phase separation is subjected to additional processing steps. The invention thus provides an efficient continuous direct synthesis method for a liquid melamine resin.
    Type: Application
    Filed: March 26, 2004
    Publication date: March 8, 2007
    Inventors: Manfred Ratzsch, Hartmut Bucka, Frank Schroder, Steffen Pfeiffer, Gunther Tappeiner