Patents by Inventor Ronald-Karl Jerg

Ronald-Karl Jerg 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).

  • Aqueous polyurethane dispersions having improved water and solvent resistance
    Patent number: 6248415
    Abstract: The present invention relates to aqueous polyurethane dispersions prepared from a polyisocyanate component and one or more isocyanate-reactive compounds wherein at least 5% by weight of polyisocyanate component is a diisocyanate corresponding to formula (I) wherein R is a difunctional, C4 to C18, aliphatic, cycloaliphatic or aromatic hydrocarbon residue obtained by removing the NCO groups from an organic diisocyanate and R′ is a monofunctional, C1 to C18 hydrocarbon radical, which may contain ether oxygen atoms. The present invention also relates to the use of these PUR dispersions for coating any substrates, preferably wood substrates, such as parquet flooring.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: June 19, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Josef Pedain, Eberhard Arning, Dieter Mager, Lutz Schmalstieg, Ronald-Karl Jerg