Patents by Inventor Georg Bobar

Georg Bobar 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).

  • Patent number: 5605966
    Abstract: Microcapsules comprise a polymeric wall material and a polymeric core material which is suitable as a leveling agent for film formation by film-forming oligomers and polymers.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: February 25, 1997
    Assignee: BASF Aktiensellschaft
    Inventors: Bernhard Schuler, Georg Bobar, Tilmann Korth, Ottokar Flocken, Peter Gleich
  • Patent number: 4983760
    Abstract: Low molecular weight polymers of acrylic esters which are suitable for use as external plasticizers in coated compositions on a synthetic resin basis are obtainable by subjecting(a) from 80 to 100% by weight of at least one acrylic ester of C.sub.1 -C.sub.8 -alkanol (monomer I) and(b) 0 to 20% by weight of one or more other copolymerizable monomers (monomer II)to a free radical polymerization in a solution in isopropanol in a pressure vessel at 130.degree.-140.degree. C. by introducing first from 70 to 95% by weight of a solvent and adding the remainder of the polymerization batch continuously over 3-7 hours in separate portions of which one contains the monomers and, after the polymerization has ended, distilling off the solvent under reduced pressure, the weight proportion of solvent being 5-15% by weight based on the monomers, the weight proportion of initiator being 0.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: January 8, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Georg Bobar, Klaus Schnell, Gerd Schroeder, Eckehardt Wistuba
  • Patent number: 4968763
    Abstract: Vinyl chloride copolymers of (a) from 60 to 78 parts by weight of vinyl chloride, (b) from 1 to 20 parts by weight of glycidyl methacrylate and (c) from 12 to 40 parts by weight of compounds copolymerizable with (a) and (b) have viscosity values, measured in 20% strength by weight toluene solution at 23.degree. C., of from 10 to 100 mPa.s.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: November 6, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Georg Bobar, Hans-Joachim Krause, Gernot Leib