Patents by Inventor Norbert Behlau

Norbert Behlau 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).

  • Leather-treatment agents, process for their preparation, and their use for producing low-fogging leathers
    Patent number: 6048467
    Abstract: New leather dressing agents, which may be obtained by polymerization ofa1) 70-100 wt. % acrylic acid and/or methacrylic acid and/or acid chlorides and/or anhydrides thereof witha2) 0-30 wt. % of other water-soluble monomers copolymerizable with a1), anda3) 0-20 wt. % of water-insoluble monomers copolymerizable with a1) and a2), reaction of the polymer with fatty amines, and neutralization and dispersion of the thus modified polymer, with amines not bound to the polymer optionally being reacted with (meth)acrylic acid to give N-substituted .beta.-aminopropionic acids, production of said leather dressing agents and their use in the manufacture of low-fogging leathers.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: April 11, 2000
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Kurt Dahmen, Thomas Muller, Reinmar Peppmoller, Norbert Behlau