Patents by Inventor Norbert Biedermann

Norbert Biedermann 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).

  • Process for the preparation of creatine or creatine monohydrate
    Patent number: 6759553
    Abstract: A process for the preparation of creatine or creatine monohydrate by reaction of sodium or potassium sarcosinate with cyanamide at a temperature from 20 to 150° C. and a pH from 7.0 to 14.0 comprises carrying out the pH adjustment with carbonic acid.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: July 6, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Knut Kessel, Günter Scherr, Michael Kluge, Norbert Biedermann, Thomas Greindl, Thomas Bogenstätter, Wolfgang Hähnlein
  • Fiberplates made of polyamines or polyamine-containing aminoplast resins as binding agents
    Patent number: 6624284
    Abstract: A process for producing fiberboard panels includes I. gluing cellulosic fibers with an aqueous glue solution and adjusting the moisture content of the cellulosic fibers and/or the water content of the glue such that the moisture content of the glued cellulosic fibers is not more than 150%; and II. compressing the glued cellulosic fibers produced in step (I) at elevated temperature to fiberboard panels.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: September 23, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Biedermann, Stephan Weinkötz, Günter Scherr, Franz Wolf, Gunter Lehmann, Ralph Lehnen
  • Melamine resin dispersions
    Patent number: 6551702
    Abstract: Aqueous melamine resin dispersions comprise as discontinuous phase a melamine resin stabilized with a combination of a cationic protective colloid and an anionic protective colloid.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: April 22, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Biedermann, Günter Scherr, Christof Jäckh, Jakob Decher, Valerie Andre, Werner Schnurr, Ingolf Hennig
  • Preparation on an O-alkylisourea
    Patent number: 6252103
    Abstract: A process for the preparation of an O-alkylisourea of the formula I, where R1 is C1- to C20-alkyl, in the form of an acid addition salt, in which urea and an alkyl-transferring reagent, if required dissolved or suspended in a diluent, are reacted at 40-200° C. in a continuously operated reactor, is described. The diluent is preferably a recycled part-stream of the O-alkylisourea acid addition salt obtained.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: June 26, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Kluge, Knut Kessel, Thomas Greindl, Norbert Biedermann, Günter Scherr, Thomas Bogenstätter