Patents by Inventor Alexander Karbach

Alexander Karbach 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: 20020159127
    Abstract: A layer arrangement including at least one transparent substrate having an electrically conductive layer, an electro-optically active layer, and a further substrate having an electrically conductive layer, characterized in that at least one of the two electrically conductive substrates is additionally coated with an organic conductive polymer system, can be employed for the construction of liquid-crystal displays.
    Type: Application
    Filed: March 4, 2002
    Publication date: October 31, 2002
    Inventors: Rolf Wehrmann, Helmut-Werner Heuer, Alexander Karbach
  • Publication number: 20020123560
    Abstract: A sizing composition suitable for glass fibers is disclosed. The composition having a pH value between 3 and 10 contains (a) a film forming agent, (b) a silane coupling agent, (c) a water soluble or water-dispersable compound having amino and/or amido groups, and water is suitable for making sized glass fibers for use in reinforced polymer composites.
    Type: Application
    Filed: August 15, 2001
    Publication date: September 5, 2002
    Inventors: Raymond Audenaert, Joachim Simon, Detlev Joachimi, Alexander Karbach, Matthias Bienmuller, Juan Gonzalez-Blanco
  • Publication number: 20020031665
    Abstract: A composition suitable for sizing of glass fibers is disclosed. The composition contains water dispersible, water-soluble or water emulsifiable resin selected from the group consisting of polyepoxide, polyester, polyvinyl acetate, polyacrylate and polyurethane, water, an organofunctional silane, and a nucleating agent. Optional components include emulsifiers, lubricants, wetting and anti-static agents. Glass fibers sized with the composition are suitable for preparing composites having improved mechanical properties.
    Type: Application
    Filed: December 6, 1999
    Publication date: March 14, 2002
    Inventors: RAYMOND AUDENAERT, DETLEV JOACHIMI, ALEXANDER KARBACH, STEPHAN KIRCHMEYER, JOACHIM SIMON
  • Patent number: 6320066
    Abstract: A water-soluble compound suitable for coating a variety of substrates is disclosed. The compound is prepared by reacting a diisocyanate with a diamino alkoxysilane, optionally also with a nonionic hydrophilic compound. Suitable substrates include oxides in solid form, glass, mineral and wood.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: November 20, 2001
    Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen N.V.
    Inventors: Raymond Audenaert, Joachim Simon, Detley Joachimi, Alexander Karbach
  • Patent number: 6143823
    Abstract: Thermoplastically processable thermotropic molding compounds of thermotropic polycondensates and 0.05 to 5% by weight functionalized polymers, such as for example functionalized polybutadiene oils, polyethylene or polypropylene.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: November 7, 2000
    Assignee: Bayer AG
    Inventors: Rolf Wehrmann, Alexander Karbach, Thomas Elsner, Peter Tappe
  • Patent number: 6083635
    Abstract: Mixtures ofA) neutral polythiophenes of formula (I), ##STR1## wherein R.sub.1 and R.sub.2 separately from one another represent hydrogen or a C.sub.1-4 alkyl group or together form an optionally substituted C.sub.1-4 alkylene radical, preferably a methylene radical optionally substituted by alkyl groups, an ethylene-1,2 radical optionally substituted by C-.sub.1-12 alkyl or phenyl groups, or a cyclohexylene-1,2 radical, andB) organic compounds containing dihydroxy or polyhydroxy and/or carboxyl groups or amide groups or lactam groups,as well as transparent, electrically conducting coatings made therefrom and electroluminescent systems containing a conductive layer produced from the abovementioned mixtures as the electrode.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: July 4, 2000
    Assignee: Bayer AG
    Inventors: Friedrich Jonas, Alexander Karbach, Bavo Muys, Etienne van Thillo, Rolf Wehrmann, Andreas Elschner, Ralf Dujardin
  • Patent number: 5900454
    Abstract: Aqueous dispersions comprising emulsified polyolefins and metal salts of phosphoric acid esters which are useful for sizing glass fibers.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: May 4, 1999
    Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen N.V.
    Inventors: Stephan Kirchmeyer, Alexander Karbach, Raymond Audenaert
  • Patent number: 5811480
    Abstract: Size compositions for glass fibers which contain, in addition to polyepoxide, polyester or polyurethane film formers; amino - or epoxysilanes, or both; monomeric, aromatic di- or polycarboxylic acids and conventional size components.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: September 22, 1998
    Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen N.V.
    Inventors: Stephan Kirchmeyer, Alexander Karbach, Raymond Audenaert
  • Patent number: 5766515
    Abstract: Mixtures ofA) neutral polythiophenes of formula (I), ##STR1## wherein R.sub.1 and R.sub.2 separately from one another represent hydrogen or a C.sub.1-4 alkyl group or together form an optionally substituted C.sub.1-4 alkylene radical, preferably a methylene radical optionally substituted by alkyl groups, an ethylene-1,2 radical optionally substituted by C.sub.1-12 alkyl or phenyl groups, or a cyclohexylene-1,2 radical, andB) organic compounds containing dihydroxy or polyhydroxy and/or carboxyl groups or amide groups or lactam groups,as well as transparent, electrically conducting coatings made therefrom and electroluminescent systems containing a conductive layer produced from the abovementioned mixtures as the electrode.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: June 16, 1998
    Assignee: Bayer Aktiengessellschaft
    Inventors: Friedrich Jonas, Alexander Karbach, Bavo Muys, Etienne van Thillo, Rolf Wehrmann, Andreas Elschner, Ralf Dujardin
  • Patent number: 5587435
    Abstract: A block copolymer resin containing structural units conforming to ##STR1## and a method for its preparation are disclosed. Accordingly, the block copolymer is prepared by reactive blending of an ester-containing polyether sulfone with a polyester. The block copolymer resin thus produced is characterized by its homogeneous morphology. The high level of its mechanical properties makes the resin suitable for a variety of applications.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: December 24, 1996
    Assignees: Bayer Corporation, Bayer Aktiengesellschaft
    Inventors: Aaron D. Meltzer, Alexander Karbach
  • Patent number: 5500479
    Abstract: A block copolymer resin containing structural units conforming to ##STR1## and a method for its preparation are disclosed. Accordingly, the block copolymer is prepared by reactive blending of an ester-containing polyether sulfone with a polyester. The block copolymer resin thus produced is characterized by its homogeneous morphology. The high level of its mechanical properties makes the resin suitable for a variety of applications.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: March 19, 1996
    Assignees: Bayer Corporation, Bayer Aktiengesellschaft
    Inventors: Aaron D. Meltzer, Alexander Karbach
  • Patent number: 5266405
    Abstract: This invention relates to thermosetting compositions for the production of epoxide networks of very high impact strength, to a process for their preparation and to their use as polymer materials, coating compounds, adhesives and materials for electrical insulation.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: November 30, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Stephan Kirchmeyer, Hanns P. Muller, Alexander Karbach, Joachim Franke
  • Patent number: 5254624
    Abstract: The invention relates to compatible blends of 94 to 10% by weight aromatic poly(ester) carbonates or polycarbonates, 5 to 70% by weight polyamides and 1 to 20% by weight ester-functional (meth)acrylate polymers and, optionally, elastomers in typical modifying quantities, to a process for the production of these blends and to their use for the production of moldings.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: October 19, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Georg Heger, Erwin Piejko, Josef Buekers, Leo Morbitzer, Alexander Karbach
  • Patent number: 5179146
    Abstract: Modified polyisocyanates having an NCO group content of from 10 to 45% by weight, comprising a a) a polyisocyanate component consisting essentially of an organic polyisocyanate having an NCO group content of from 15 to 50% by weight which is liquid at room temperature, and b) 2 to 100% by weight, based on the weight of component a), of a polymer modifier consisting of at least one graft rubber which is dispersed in swollen form in component a), and a process for the production of the new modified polyisocyanates are described. The modified polyisocyanates are also useful in the production of plastics by the isocyanate polyaddition process.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: January 12, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hanns-Peter Muller, Geza Avar, Christian Weber, Karl-Heinz Dorner, Alexander Karbach, Christian Lindner, Rolf Dhein