Patents by Inventor Wilma Löcken

Wilma Löcken 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: 7479520
    Abstract: An aqueous coating material, substantially or completely free from volatile organic compounds and preparable by mixing with one another (A) at least one aqueous primary dispersion comprising dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core/shell particles with a diameter ?500 nm, preparable by free-radical microemulsion or miniemulsion polymerization of at least one olefinically unsaturated monomer in the presence of at least one hydrophobic additive, and (B) at least one secondary aqueous polyurethane dispersion comprising at least one polyurethane and at least one light stabilizer selected from the group of the regenerable free-radical scavengers, a process for preparing it and its use.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: January 20, 2009
    Assignee: BASF Coatings AG
    Inventors: Ralf Nickolaus, Heinz-Peter Rink, Reinhold Clauss, Elisabeth Wessling, Wilma Löcken, Maximilian Bendix, Dunja Mikolajetz
  • Patent number: 7157526
    Abstract: Aqueous primary dispersion, substantially or entirely free of volatile organic compounds, and comprising dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core/shell particles with a particle diameter?500 nm, preparable by free-radical micro- or miniemulsion polymerization of at least one olefinically unsaturated monomer in the presence of at least one hydrophobic additive and of at least one oligomeric polyester with a number-average molecular weight of from 150 to 1 500 daltons, a hydroxyl number of from 100 to 1 000 mg KOH/g, and an acid number<20 mg KOH/g and also a process for preparing it and its use as a coating material, adhesive or sealing compound or to prepare a coating material, an adhesive or a sealing compound.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: January 2, 2007
    Assignee: BASF Coatings AG
    Inventors: Ralf Nickolaus, Heinz-Peter Rink, Reinhold Clauss, Elisabeth Wessling, Wilma Löcken, Nicole Freitag, Dunja Mikolajetz
  • Patent number: 7151130
    Abstract: Polyurethane-modified addition copolymers preparable by free-radically (co)polymerizing an olefinically unsaturated monomer (a) in an aqueous or nonaqueous medium comprising at least one reaction product (A/B) of (A) at least one addition copolymer containing on average per molecule at least 0.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: December 19, 2006
    Assignee: BASF Coatings AG
    Inventors: Wolfgang Bremser, Thomas Krüger, Wilma Löcken, Stephan Schwarte, Heinz-Peter Rink
  • Patent number: 7129288
    Abstract: Novel polyurethanes containing sulfide groups which comprise at least one group of the general formula I in the polymer main chain and/or at least one group of the general formula II incorporated at the chain end: —X—A—S—B—Y—??(I) —X—A—S—B—YH??(II) in which the variables have the following definitions: S is the sulfur atom; X and Y independently of one another are oxygen atoms, sulfur atoms or groups —NZ where Z is the hydrogen atom or an alkyl radical of 1 to 10 carbon atoms; and A and B independently of one another are divalent organic radicals; novel polymer mixtures based thereon, and the use of the novel polyurethanes and polymer mixtures and dispersions thereof for the preparation of coating materials, adhesives and sealing compounds.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: October 31, 2006
    Assignee: BASF Coatings AG
    Inventors: Wilma Löcken, Heinz-Peter Rink, Thomas Krüger, Stefan Schwarte, Hans-Ulrich Moritz, Hartmut Kagerer
  • Patent number: 7001975
    Abstract: A hydrophilic or hydrophobic polyurethane containing on average per molecule at least one olefinically unsaturated structural unit selected from the group consisting of pendant, internal, and terminal, acyclic and cyclic terpene units; graft copolymers of the polyurethane with olefinically unsaturated monomers, processes for preparing the polyurethane and the graft copolymers, and their use for preparing coating materials, adhesives, and sealing compounds.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: February 21, 2006
    Assignee: BASF Coatings AG
    Inventors: Wolfgang Bremser, Thomas Krüger, Wilma Löcken, Peter-Heinz Rink, Stephan Schwarte
  • Patent number: 6953822
    Abstract: Aqueous (meth)acrylate copolymer dispersions preparable by (I) subjecting at least one monomer (a) containing at least one hydrophilic functional group which brings about the water-solubility or water-dispersibility of the (meth)acrylate copolymer to (co)polymerization in aqueous/organic solution using at least one oil-soluble initiator which provides free radicals, (II) where appropriate, fully or partly neutralizing the resulting (co)polymer I, (III) dispersing the resultant solution of the (co)polymer I, (partly) neutralized where appropriate, in water, and (IV) copolymerizing and/or graft-copolymerizing at least one monomer (b) in the presence of the resultant dispersion III using oil-soluble initiators which provide free radicals, the monomer or monomers (b) containing at least one hydrophilic functional group which brings about no substantial water-solubility or water-dispersibility of the (meth)acrylate copolymer, or at least one hydrophobic group, and being selected in nature and amount such that th
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: October 11, 2005
    Assignee: BASF Coatings AG
    Inventors: Wilma Löcken, Heinz-Peter Rink, Ursula Heimeier
  • Patent number: 6649688
    Abstract: A coating composition consisting of at least three components, comprising a component (I) comprising at least one hydroxyl-containing oligomeric or polymeric resin dispersed or dissolved in one or more organic, optionally water dilutable solvents, as binder (A), a component (II) comprising at least one polyisocyanate dispersed or dissolved in one or more organic, optionally water dilutable solvents, as crosslinking agent (F), and a component (III) which comprises water, wherein component (I) comprises at least one hydroxyl-containing polyacrylate resin (A) containing polyether sidegroups and/or endgroups of the general formula I Y—(—O—R—)n—  (I) in which the index and variables have the following meanings: n=3 to 100; R=C2 to C6 alkanediyl and C3 to C8 cycloalkanediyl; Y=hydrogen atom or C1 to C4 alkyl; as binder (A).
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: November 18, 2003
    Assignee: BASF Coatings AG
    Inventors: Bernd Mayer, Heinz-Peter Rink, Egbert Nienhaus, Wilma Löcken
  • Patent number: 6534588
    Abstract: A coating composition consisting of at least three components, comprising a component (I) comprising at least one oligomeric or polymeric resin containing functional groups which react with isocyanate groups, as binder (A), a component (II) comprising at least one polyisocyanate as crosslinking agent (F), and a component (III) which consists of water or comprises water and at least one binder (A), wherein component (I) and/or (III) comprise or comprises at least one branched, cyclic and/or acyclic C9-C16-alkane which is functionalized using at least two hydroxyl groups.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: March 18, 2003
    Assignee: BASF Coatings AG
    Inventors: Wilma Löcken, Heinz-Peter Rink