Patents by Inventor Cornelius Muhlhausen

Cornelius Muhlhausen 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).

  • Coating the back of a textile floor covering with a polyurethane foam
    Patent number: 4035529
    Abstract: The instant invention relates to a process for coating the back of textile floor coverings, e.g. carpets, with polyurethane foams wherein it is possible to obtain particularly firm fixing of the nap and improved anchorage of the textile filaments. The process broadly comprises:A. applying to the back of a textile floor covering a first coat consisting essentially of a reacting foamable mixture of a polyol and a large excess of polyisocyanate,B. before said first coat has been hardened, applying thereto reacting foamable mixture of substantially equivalent quantities of polyol and polyisocyanate, andC. thereafter hardening the resultant product.
    Type: Grant
    Filed: August 7, 1975
    Date of Patent: July 12, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ernst Meisert, Klaus Recker, Gerhard Grogler, Cornelius Muhlhausen, Gerd Reinecke