Patents by Inventor Johannes Tuerk

Johannes Tuerk 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: 6841608
    Abstract: An aqueous polymer dispersion, a process for preparing it, and substrates bound on the basis of it are described.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: January 11, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Dreher, Bernd Reck, Michael Seufert, Johannes Türk
  • Patent number: 6716922
    Abstract: The invention relates to a thermally hardenable polymer dispersion powder and the use of said powder as a binding agent in particular for fibrous and grainy materials. The binding agent in powder form is obtained by drying a polymer dispersion which comprises a carboxyl-group-containing polymerization component in addition to, optionally, a hydroxy-alkylated amine.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: April 6, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Dreher, Bernd Reck, Michael Seufert, Johannes Türk, Matthias Laubender, Matthias Gerst, Heinrich Sack
  • Patent number: 6583252
    Abstract: A polymer composed overall of from 50 to 99.98 % by weight of C1-C12 alkyl (meth)acrylate a), from 0.02 to 10 % by weight of a vinylaromatic compound b), from 0 to 10 % by weight of an ethylenically unsaturated acid or of an ehtylenically unsaturated acid anhydride c),  and from 0 to 40% by weight of further monomers d), the percentages by weight being based on the polymer and the polymer being obtainable by polymerizing the monomers a) to d) in at least two stages which differ in their content of vinylaromatic compounds in such a way that the content of vinylaromatic compounds in the vinylaromatics-rich stage is at least 5 times as great as in the low-vinylaromatics stage.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: June 24, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernhard Schuler, Gerhard Auchter, Johannes Türk, Rik Noordijk, Johannes Dobbelaar, Reinhard Bächer, Wolfgang Hümmer
  • Patent number: 6348530
    Abstract: Heat-curable aqueous compositions which comprise a carboxyl-containing polymer component and optionally a hydroxyalkylated amine are used as binders for shaped articles.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: February 19, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Reck, Stefan Dreher, Wilhelm Friedrich Beckerle, Eckehardt Wistuba, Michael Seufert, Joachim Roser, Johannes Türk
  • Patent number: 6303726
    Abstract: A polymer which contains from 50 to 99.98% by weight of a C1-C12 alkyl (meth)acrylate a), from 0.02 to 10% by weight of a vinylaromatic compound b), from 0 to 10% by weight of an ethylenically unsaturated acid or of an ethylenically unsaturated acid anhydride c), and from 0 to 40% by weight of further monomers d), the percentages by weight being based on the polymer and the polymer being obtainable by polymerizing the monomers a) to d) in at least two stages which differ in their content of vinylaromatic compounds in such a way that the content of vinylaromatic compounds in the vinylaromatics-rich stage is at least 5 times as great as in the low-vinylaromatics stage.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: October 16, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernhard Schuler, Gerhard Auchter, Johannes Türk, Rik Noordijk, Johannes Dobbelaar, Reinhard Bächer, Wolfgang Hümmer
  • Patent number: 6299936
    Abstract: Thermally curable aqueous compositions comprising a low-acid and an acid-rich polymer component and also a hydroxyalkylated amine are used as binders for shaped articles.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: October 9, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Reck, Stefan Dreher, Wilhelm Friedrich Beckerle, Eckehardt Wistuba, Joachim Roser, Johannes Türk
  • Patent number: 6262159
    Abstract: Described is a polymer dispersion comprising in an aqueous medium (a) dispersed particles of a polymer containing more than from 5 to 20% by weight of &agr;,&bgr;-ethylenically unsaturated mono- or dicarboxylic acid, (b) a dissolved polymer containing from 60 to 100% by weight of &agr;,&bgr;-ethylenically unsaturated mono- or dicarboxylic acid, and (c) an alkoxylated long-chain amine. Heat-curable compositions are obtained by adding polyfunctional alcohols and, optionally, reaction accelerant. The polymer dispersions and the heat-curable compositions are suitable for use as binders for textile sheetlike structures and for moldings.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: July 17, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Dreher, Bernd Reck, Michael Seufert, Johannes Türk
  • Patent number: 6225401
    Abstract: Readily filterable and deodorizable aqueous dispersions of pressure-sensitive adhesive, especially for self-adhesive labels, having solids contents of more than 65%, can be prepared with readily reproducible properties by copolymerizing esters of acrylic and/or methacrylic acid in the presence of less than 50 ppm of inhibitor and, preferably, in the presence of from 0.01 to 5% by weight of reducing agent by a special emulsion technique. The highly concentrated pressure-sensitive adhesive dispersion, subsequently deodorized with steam, is free from coagulum and seediness.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: May 1, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd Rehmer, Bernd Stanger, Gerhard Auchter, Johannes Türk, Oral Aydin, Rüdiger Füssl
  • Patent number: 6214925
    Abstract: A polymer which is composed of from 50 to 99.98% by weight of a C1-C12 alkyl (meth)acrylate a), from 0.02 to 1.8% by weight of a vinyl-aromatic compound b), from 0 to 10% by weight of an ethylenically unsaturated acid or an ethylenically unsaturated acid anhydride c), and from 0 to 40% by weight of other monomers d), the percentages by weight being based on the polymer.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: April 10, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernhard Schuler, Gerhard Auchter, Johannes Türk, Rik Noordijk, Johannes Dobbelaar, Reinhard Bächer, Wolfgang Hümmer
  • Patent number: 5405693
    Abstract: An aqueous dispersion containing a copolymer comprisinga) 60-95% by weight of a C.sub.2 -C.sub.10 -alkyl (meth)acrylateb) 5-40% by weight of methyl acrylatec) 0-30% by weight of methyl methacrylated) 0-30% by weight of a C.sub.8 -C.sub.12 -vinylaromatic compounde) 0-10% by weight of a C.sub.1 -C.sub.10 -hydroxyalkyl (meth)acrylatef) 0-5% by weight of an ethylenically unsaturated C.sub.3 -C.sub.5 -carboxylic acid or dicarboxylic acidg) 0-20% by weight of further ethylenically unsaturated compounds,vinyl acetate and chlorine-containing compounds being excluded, is used as an adhesive.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: April 11, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Uwe Dittrich, Bernd Stanger, Josef Neutzner, Peter Pfoehler, Helmut Mueller, Johannes Tuerk
  • Patent number: 4937282
    Abstract: Aqueous dispersions of copolymers of(a) from 70 to 85% by weight of nontertiary butyl (meth)acrylates,(b) from 8 to 27.2% by weight of (meth)acrylates (A) whose homopolymers have a glass transition temperature greater than that of the polybutyl (meth)acrylate up to 0.degree. C. and (meth)acrylates (B) whose homopolymers have a glass transition temperature below that of the polybutyl (meth)acrylate, the weight ratio of the (meth)acrylates (A) to the (meth)acrylates (B) being from 3:1 to 1:3,(c) from 2 to 15% by weight of methyl methacrylate, styrene and/or acrylonitrile and(d) 0.8 to 5% by weight of monoolefinically unsaturated mono- and/or dicarboxylic acids of 3 to 5 carbon atoms and/or their amides which are unsubstituted or substituted at the nitrogen atoms by alkyl and/or alkylol radicals of 1 to 4 carbon atoms and/or hydroxyalkyl (meth)acrylates where the alkyl groups are of 2 to 5 carbon atoms,are used for coating sheet-like substrates.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: June 26, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Pfoehler, Hermann Seyffer, Juergen Vietmeter, Johannes Tuerk, Wolfgang Druschke, Klaus Schagerer