Patents by Inventor Franz Heinrich Kreuzer

Franz Heinrich Kreuzer 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).

  • Compositions containing liquid-crystalline phases
    Patent number: 4410570
    Abstract: This invention relates to compositions containing liquid-crystalline phases which comprises a cyclic organopolysiloxane having mesogenic molecules chemically bonded thereto.
    Type: Grant
    Filed: February 25, 1982
    Date of Patent: October 18, 1983
    Assignee: Consortium fur Elektrochemische Industrie GmbH
    Inventors: Franz-Heinrich Kreuzer, Magdi E. Gawhary
  • Crosslinked organopolysiloxanes having liquid-crystalline properties
    Patent number: 4388453
    Abstract: This invention relates to crosslinked organopolysiloxanes having liquid-crystalline properties in which mesogenic molecules are chemically bonded to the organopolysiloxane lattices. These crosslinked organopolysiloxanes are prepared from silanes or siloxanes containing mesogenic molecules which are capable of being crosslinked by addition or condensation reactions.
    Type: Grant
    Filed: May 5, 1982
    Date of Patent: June 14, 1983
    Assignee: Consortium fur Elektrochemische
    Inventors: Heino Finkelmann, Gunther Rehage, Franz-Heinrich Kreuzer
  • Compositions containing diorganopolysiloxanes
    Patent number: 4211729
    Abstract: A composition containing diorganopolysiloxanes and copolymers prepared in the presence of these diorganopolysiloxanes in which the copolymers are derived from monomers consisting of at least ethylene and vinyl acetate. The resulting composition exhibits non-slump properties and does not migrate on vertical surfaces even in the absence of fillers.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: July 8, 1980
    Assignee: Consortium fur Elektrochemische Industrie, GmbH
    Inventors: Klaus Marquardt, Franz-Heinrich Kreuzer
  • Method for preparing modified polysiloxanes
    Patent number: 4032499
    Abstract: An improved method for preparing modified organopolysiloxanes which comprises graft polymerizing monomers containing aliphatic unsaturation onto organopolysiloxanes in the presence of a free radical and an inert liquid having a boiling point up to about 100.degree. C. at 760 mm Hg (abs.) and which is a nonsolvent for the organopolysiloxanes and the graft polymers at the applicable polymerization temperatures.
    Type: Grant
    Filed: January 31, 1975
    Date of Patent: June 28, 1977
    Assignee: Consortium fur Elektrochemische Industrie GmbH
    Inventors: Franz-Heinrich Kreuzer, Manfred Wick
  • Curable bituminous organopolysiloxane compositions
    Patent number: 4026853
    Abstract: Bituminous organopolysiloxanes which are capable of being cured comprising a bituminous material and a modified organopolysiloxane capable of being cross-linked.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: May 31, 1977
    Assignee: Consortium fur Elektrochemische Industrie GmbH
    Inventors: Gunter Dressnandt, Hermann Meyer, Walter Keil, Oswin Sommer, Klaus Marquardt, Franz Heinrich Kreuzer, Eckhart Louis