Patents by Inventor Friedrich S. Buhler

Friedrich S. Buhler 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: 5436078
    Abstract: A highly transparent, single-phase biodegradable starch mixture comprising 90 to 1 parts of at least one polyamide and 10 to 99 parts of a starch molding composition, which composition comprises 96 to 46 parts of at least one chemically modified starch and 4 to 40 parts of at least one plasticizer. Preferably, up to 4 parts by weight of at least one additive such as urea, urea derivatives, and emulsifiers are also included; in addition, the starch mixture may contain up to 20 parts by weight of known additives. The invention also relates to a process for producing the highly transparent starch mixture and, in particular, to the use of the starch mixture in thermoplastically shaped parts.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: July 25, 1995
    Assignee: EMS-Inventa AG
    Inventors: Friedrich S. Buhler, Eduard Schmid, Hans-Joachim Schultze