Patents by Inventor Karlheinz Ulmerich

Karlheinz Ulmerich 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: 6184282
    Abstract: Flame-retardant thermoplastic molding compositions comprise A) from 40 to 98% by weight of a thermoplastic polyamide B) from 1 to 40% by weight of melamine cyanurate C) from 1 to 50% by weight of a fibrous filler which is pretreated with a silane compound and whose arithmetic mean fiber length (d50) is from 70 to 200 &mgr;m, or of an acicular mineral filler or a mixture of these D) from 0 to 30% by weight of other additives and processing aids where the total of the percentages by weight of components A) to D) is 100%.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: February 6, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Brigitte Gareiss, Heiner Görrissen, Karlheinz Ulmerich, Harald Lauke
  • Patent number: 5482985
    Abstract: Flameproofed thermoplastic polyamide molding materials containA) from 40 to 98% by weight of a thermoplastic polyamide,B) from 0.5 to 30% by weight of melamine cyanurate,C) from 0.5 to 50% by weight of magnesium hydroxide,D) from 1 to 50% by weight of a fibrous or particulate filler or of a mixture thereof which differs from B) and C) andE) from 0 to 30% by weight of conventional additives or processing assistants.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: January 9, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Petra Baierweck, Brigitte Gareiss, Karlheinz Ulmerich, Michael Gall, Manfred Koetting
  • Patent number: 5464894
    Abstract: Flameproofed thermoplastic molding materials are obtainable by mixing from 20 to 70% by weight of a mixture of carbonates of metals of the 2nd main group of the Periodic Table of Elements in a melt of from 10 to 80% by weight of a polyester prepolymer having a viscosity number of from 40 to 100 ml/g and subsequently carrying out solid-phase postcondensation.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: November 7, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Brigitte Gareiss, Petra Baierweck, Christoph Plachetta, Karlheinz Ulmerich
  • Patent number: 5422390
    Abstract: Thermoplastic molding materials contain, as essential components,A) 10-80% by wt. of a copolyester based on polyalkylene terephthalates, which contains from 5 to 25% by weight, based on A), of a dimeric acid of 7 to 52 carbon atoms as a co-component, andB) 20-70% by wt. of a mixture of carbonates of metals of the 2nd main group of the Periodic Table of Elements.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: June 6, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Brigitte Gareiss, Christoph Plachetta, Karlheinz Ulmerich, Gunter Pipper
  • Patent number: 5412017
    Abstract: Flameproofed thermoplastic molding materials are obtainable by mixingA) from 20 to 70% by weight of a magnesium hydroxide andB) from 0 to 70% by weight of conventional additives and processing assistantsinto a melt ofC) from 10 to 80% by weight of a polyamide prepolymer having a viscosity number of from 40 to 100 ml/gand then carrying out solid-phase postcondensation.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: May 2, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Brigitte Gareiss, Petra Baierweck, Christoph Plachetta, Karlheinz Ulmerich
  • Patent number: 5405890
    Abstract: A flameproofed black thermoplastic molding material containingA) from 5 to 98.9% by weight of a thermoplastic polyamide,B) from 1 to 20% by weight of red phosphorusC) from 0.1 to 5% by weight of a colorant complementary with red phosphorus to produce blackened polyamide,D) from 0 to 30% by weight of an elastomeric polymer,E) from 0 to 50% by weight of a fibrous or particulate filler or of a mixture thereof,F) from 0 to 70% by weight of a polyphenylene ether andG) from 0 to 30% by weight of conventional additives and processing assistants,the percentages by weight of components A to G being 100% in each case.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: April 11, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Petra Baierweck, Doris Zeltner, Brigitte Gareiss, Heiner Goerrissen, Karlheinz Ulmerich, Klaus Muehlbach, Michael Gall
  • Patent number: 4837264
    Abstract: High-impact polyamide molding compositions contain as essential components(X) from 40 to 98% by weight, based on (X)+(Y), of a thermoplastic polyamide,(Y) from 2 to 60% by weight, based on (X)+(Y), of a rubberlike polymer which contains, as copolymerized units, an acrylic or methacrylic ester or an unsaturated carboxylic acid,(Z) from 0.001 to 2% by weight, based on (X)+(Y), of a metal compound selected from the group consisting of(Z.sub.1) salts of divalent, trivalent or tetravalent metals with C.sub.2 -C.sub.4 -carboxylic acids,(Z.sub.2) oxides of germanium or antimony and(Z.sub.3) alkyl orthotitanates and dialkyltin dilaurates.
    Type: Grant
    Filed: January 5, 1988
    Date of Patent: June 6, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Zahradnik, Karlheinz Ulmerich, Graham E. McKee, Horst Reimann, Richard Pflueger, Rainer Theysohn