Patents by Inventor Klaus Vorspohl

Klaus Vorspohl 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).

  • Copolymers and mixtures which are self-curable with atmospheric humidity
    Patent number: 5532329
    Abstract: Copolymers which are self-curable with atmospheric humidity and are based on acrylic, methacrylic and/or vinyl esters which have been prepared using silicon-containing regulators, and mixtures of such polymers with crosslinkers, are suitable as adhesive, sealing and coating compositions which are self-curable with atmospheric humidity.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: July 2, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Filges, Oral Aydin, Gerhard Auchter, Juergen Barwich, Hermann Anders, Werner Langer, Klaus Vorspohl
  • Highly reactive polyoxyalkylene-polyols containing tertiary amino groups in bonded form, their preparation, and their use for the preparation of polyisocyanate polyaddition products
    Patent number: 5476969
    Abstract: The invention relates to highly reactive polyoxyalkylene-polyols prepared by oxyalkylation of an initiator molecule containing, in bonded form, at least 2 reactive hydrogen atoms and at least one tertiary amino group bonded via a spacer bridge, which preferably comprises an alkylene radical having at least 3 carbon atoms, by means of at least one alkylene oxide, preferably ethylene oxide and/or 1,2-propylene oxide, to a process for the preparation of these polyoxyalkylene-polyols, and to their use for the production of compact or cellular, preferably flexible polyisocyanate polyaddition products.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: December 19, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Hinz, Stefan Adams, Ulrich Koehler, Christian Maletzko, Klaus Vorspohl, Ruth Zschiesche
  • Polyoxypropylene-polyols and polyoxypropylene-polyoxyethylene-polyols containing hydroxyl groups
    Patent number: 5340916
    Abstract: The present invention relates to a process for the preparation of a hard foam containing urethane groups or urethane and isocyanurate groups by the polyisocyanate polyaddition process, by reactinga) a polyoxypropylene- or polyoxyethylene-polyoxypropylene-polyol containing secondary hydroxyl groups, having a functionality of from 3.5 to 4.3, a hydroxyl number of from 350 to 650 and a viscosity of from 500 to 2,500 mPa.multidot.s at 23.degree. C.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: August 23, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Henn, Werner Hinz, Ludwig Schuster, Klaus Vorspohl
  • Preparation of hard foams containing urethane groups or urethane and isocyanurate groups by polyisocyanate polyaddition, and polyoxyalkylene-polyols which are suitable therefor
    Patent number: 5192813
    Abstract: The present invention relates to a process for the preparation of a hard foam containing urethane groups or urethane and isocyanurate groups by the polyisocyanate polyaddition process, by reactinga) a polyoxypropylene- or polyoxyethylene-polyoxypropylene-polyol containing secondary hydroxyl groups, having a functionality of from 3.5 to 4.3, a hydoxyl number of from 350 to 650 and a viscosity of from 500 to 2,500 mPa.s at 23.degree. C.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: March 9, 1993
    Inventors: Rolf Henn, Werner Hinz, Ludwig Schuster, Klaus Vorspohl