Patents by Inventor Willibald Lottner

Willibald Lottner 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).

  • Foaming mixtures
    Publication number: 20060084711
    Abstract: Foamable compositions which are preferably isocyanate-free and which exhibit good foaming properties including short application times and freedom from cracks in the cured foam, are obtained from alkoxysilane-terminated prepolymers preferably containing polyurethane moieties, a blowing agent component, and a solvent having a boiling point in excess of 30° C.
    Type: Application
    Filed: May 13, 2004
    Publication date: April 20, 2006
    Inventors: Volker Stanjek, Willibald Lottner, Felicitas Schauer, Christine Knezevic, Richard Weidner
  • Polymerizable liquid-crystalline siloxanes
    Patent number: 5605649
    Abstract: Polymerizable liquid-crystalline siloxanes of a defined composition which are distinguished by low viscosity and pronounced thermochromic properties. The liquid-crystalline siloxanes of the present invention are used for the production of membranes in the optical display of electromagnetic field, opto-electronics, information storage and in particular in the production of optical filters and reflectors.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: February 25, 1997
    Assignee: Consortium fur elektrochemische Industrie GmbH
    Inventors: Juergen Stohrer, Willibald Lottner
  • Poly(arylenevinylenesiloxanes) compounds
    Patent number: 5185419
    Abstract: Poly(arylenevinylenesilicon) compounds and a process for their preparation, where .alpha.,w-dialkenylarylenevinylene is reacted with an organosilicon compound containing two Si-bonded hydrogen atoms, in the presence of a catalyst which promotes the addition reaction of Si-bonded hydrogen to an aliphatic multiple bond.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: February 9, 1993
    Assignee: Consortium fur elektrochemische GmbH
    Inventors: Enno Funk, Franz-Heinrich Kreuzer, Cornelia Gramshammer, Willibald Lottner