Patents by Inventor Hugo R. Lens

Hugo R. Lens 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).

  • Publication number: 20210079257
    Abstract: The present disclosure relates to a protective coating composition for a hard surface, wherein the composition comprises an organic solvent and a polysiloxane having the general formula (I), wherein: R1, R2, R3, R4, R5, R6, R7 and R8 are independently an alkyl group having from 1 to 8 carbon atoms; Y and Z are independently a divalent linking group selected from the group consisting of urea, urethane, oxygen atom, sulfur atom and alkylene having from 1 to 8 carbon atoms; A, B, L and M are independently a divalent slinking group selected from the group consisting of alkylene having from 1 to 8 carbon atoms, with the proviso that if the combined linking groups formed by -A-Y-L- and -M-Z—B— are independently an alkylene, then the alkylene is independently different from ethylene; n is an integer from 5 to 1500; and m and p are independently an integer from 1 to 3. In another aspect, the present disclosure is directed to a method of reducing contamination from a hard surface.
    Type: Application
    Filed: May 31, 2019
    Publication date: March 18, 2021
    Inventors: Frans A. Audenaert, Christoph T. R. Schuell, Bernd Kühneweg, Hugo R. Lens, Philip A. Jinks, Wayne W. Fan, Inge Nuyts
  • Patent number: 5910557
    Abstract: The present invention relates to fluorochemical polyurethane compounds of the formula (I) according to claim 1, a method for their preparation and to compositions comprising that fluorochemical polyurethane compound. The compound and the composition comprising that compound are suitable to impart durable oil- and water-repellency and good laundry air-dry performance to substrates, such as fibers, woven or non-woven fabrics, carpets, leather and paper.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: June 8, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Frans A. Audenaert, Kathy E.M.L.A. Allewaert, Gert Hooftman, Makoto Nagase, Hugo R. Lens
  • Patent number: 5817249
    Abstract: Invention relates to new carbodiimide compound obtainable from reaction mixture comprising an isocyanate compound and a monofunctional alcohol in a non-reactive solvent in the presence of a suitable catalyst, characterized in that the isocyanate compound and the monofunctional alcohol, except for the hydroxy group, are free from isocyanate reactive hydrogen atoms and the monofunctional alcohol is a branched aliphatic alcohol containing at least 8 carbon atoms, and to compositions comprising a fluorochemical oil and water repellent agent and said carbodiimide compound.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: October 6, 1998
    Assignee: Minnesota Minning and Manufacturing Company
    Inventors: Frans A. G. Audenaert, Hugo R. Lens