Patents by Inventor Uwe Dobereiner

Uwe Dobereiner 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 monocyclohexylurea
    Patent number: 4740618
    Abstract: Monocyclohexylurea can be prepared particularly selectively if 100 parts by weight of cyclohexylamine are reacted with 70 to 300 parts by weight of urea in the presence of water in the boiling range of water.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: April 26, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Fauss, Kurt Findelsen, Uwe Dobereiner
  • Polyurethanes wherein the chain-lengthening agents are benzoic ester diamines
    Patent number: 3991023
    Abstract: Polyurethane resins are provided, which polyurethanes are chain extended with ester diamines of the formula ##SPC1##Wherein R is C.sub.1 to C.sub.20 alkyl radical and R' is a C.sub.1 to C.sub.10 alkyl radical.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: November 9, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Johannes Blahak, Erwin Muller, Uwe Dobereiner, Wolfgang Ebner, Helmut Kleimann