Patents by Inventor Wolfgang Bremser

Wolfgang Bremser 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: 7935746
    Abstract: Disclosed herein is a powder coating suspension prepared by a method comprising (1) emulsifying a liquid component comprising a liquid starting product in an aqueous medium in the presence of an emulsifier whose aqueous solution at the critical micelle concentration (CMC) has a surface tension >30 mN/m to give an aqueous emulsion of liquid particles and (2) cooling the emulsion so that a suspension of dimensionally stable particles is formed. Also disclosed are a process for preparing a powder coating suspension and a process for preparing a powder coating material.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: May 3, 2011
    Assignee: BASF Coatings AG
    Inventors: Wolfgang Bremser, Werner-Alfons Jung, Michael Stang, Heiko Wolf
  • Patent number: 7488769
    Abstract: An aqueous dispersion with a pH of from 2 to 7, comprising (A) at least one swellable polymer or oligomer containing anionic and/or potentially anionic functional groups, (B) surface-modified, cationically stabilized, inorganic nanoparticles of at least one kind, and (C) at least one amphiphile; and its use for producing highly scratch-resistant coatings, moldings, and self-supporting films.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: February 10, 2009
    Assignee: BASF Coatings AG
    Inventors: Wolfgang Bremser, Wilfried Stübbe, Elke Westhoff, Manuela Niemeier, Andreas Poppe
  • 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: 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: 6946512
    Abstract: Use of a copolymer (A) preparable by free-radical polymerization of a) at least one olefinically unsaturated monomer and b) at least one olefinically unsaturated monomer different than the olefinically unsaturated monomer (a) and of the general formula I R1R2C?CR3R4??(I), in which the radicals R1, R2, R3 and R4, in each case independently of one another, are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R1, R2, R3 and R4 are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals; in an aqueous medium for producing molding compounds and moldings.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: September 20, 2005
    Assignee: BASF Coatings AG
    Inventors: Wolfgang Bremser, Peter Steiner, Beate Podlaski-Pyzik, Frank Strickmann, Ute Stockbrink
  • Publication number: 20050159523
    Abstract: An aqueous dispersion with a pH of from 2 to 7, comprising (A) at least one swellable polymer or oligomer containing anionic and/or potentially anionic functional groups, (B) surface-modified, cationically stabilized, inorganic nanoparticles of at least one kind, and (C) at least one amphiphile; and its use for producing highly scratch-resistant coatings, moldings, and self-supporting films.
    Type: Application
    Filed: May 2, 2003
    Publication date: July 21, 2005
    Applicant: BASF Corporation, 26701 Telegraph Road
    Inventors: Wolfgang Bremser, Wilfried Stubbe, Elke Westhoff, Manuela Niemeier, Andreas Poppe
  • Patent number: 6916877
    Abstract: The present invention is directed to a curable, water-based coating composition utilized in waterborne coating systems such as a waterborne primer system. The coating composition is the reaction product of a water-dispersible cross-linking agent and a water-based copolymer prepared by free-radical polymerization. The copolymer is the reaction product of a first block and a second block. The first block is the reaction product of a plurality of ethylenically unsaturated monomers. One of the ethylenically unsaturated monomers includes a functional group suitable for reaction with the cross-linking agent. The functional group in the first block is preferably a carbonate, carbamate, or hydroxyl functional group. Other monomers in the plurality include acrylic acid and methyl methacrylate. The first block is also the reaction product of a vinylaromatic hydrocarbon monomer such as diphenylethylene. The second block is the reaction product of a non-functional, ethylenically unsaturated monomer.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: July 12, 2005
    Assignee: BASF Corporation
    Inventors: Swaminathan Ramesh, Paul J. Lessek, Wolfgang Bremser, Paul J. Harris
  • Patent number: 6916878
    Abstract: Aqueous dispersions entirely or substantially free from volatile organic compounds, comprising (A) at least one block copolymer preparable by two-stage or multistage free-radical copolymerization in an aqueous medium of a) at least one olefinically unsaturated monomer selected from the group consisting of hydrophilic and hydrophobic olefinically unsaturated monomers, and b) at least one olefinically unsaturated monomer different than the olefinically unsaturated monomer (a) and of the general formula I R1R2C?CR3R4??(I) in which the radicals R1, R2, R3 and R4 each independently of one another are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R1, R2, R3 and R4 are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals; and (B) hydrophilic nanoparticles; ?p
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: July 12, 2005
    Assignee: BASF Coatings AG
    Inventors: Wolfgang Bremser, Hans-Peter Steiner, Frank Strickmann
  • Patent number: 6902810
    Abstract: A multicoat system comprising (I) at least one constituent (IA) comprising mesomorphic polyelectrolyte complexes prepared by reacting, in a liquid phase (IB), at least one polymeric and/or oligomeric, organic, anionic polyelectrolytes (IC) with at least one polymeric and/or oligomeric, organic, cationic polyelectrolytes (ID) and/or at least one cationic surfactant (IE) or at least one polymeric and/or oligomeric, organic, cationic polyelectrolytes (ID) with at least one anionic surfactant (IF) in a stoichiometric or non-stoichiometric ratio, pouring the resulting liquid phase (IG) onto a substrate or into a mold and allowing it to solidify, and heat-treating the resulting solid (IH); and (II) at least one coat (IIA), which is three-dimensionally crosslinked, prepared by applying at least one aqueous, thermally curable coating material (IIB) comprising at least one binder (IIC) and at least one crosslinking agent (IID), to the surface of the constituent (IA), and thermally curing the resulting wet film (IIE
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: June 7, 2005
    Assignee: BASF Coatings AG
    Inventors: Beate Podlaski-Pyzik, Astrid Halfmann, Wolfgang Bremser
  • Patent number: 6884839
    Abstract: Aqueous primary dispersions and coating materials comprising dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core shell particles having a diameter?500 nm preparable by controlled free-radical microemulsion or miniemulsion polymerization of A) at least one olefinically unsaturated monomer and B) at least one olefinically unsaturated monomer which is different than the olefinically unsaturated monomer (A) and has the general formula I: R1R2C?CR3R4 (I), in which the radicals R1, R2, R3 and R4 independently of one another are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R1, R2, R3 and R4 are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals; and in the presence of (C) at least one hydrophobic cross-linking agent for the
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: April 26, 2005
    Assignee: BASF Coatings AG
    Inventors: Maximilian Bendix, Reinhold Clauss, Ralf Nickolaus, Wolfgang Bremser
  • Patent number: 6881791
    Abstract: A curable, water-based coating composition comprising a reaction product of: a copolymer comprising a free-radical polymerization product of: a first block comprising a reaction product of: a plurality of ethylenically unsaturated monomers, and a vinyl aromatic hydrocarbon monomer, wherein at least one monomer of the plurality of ethylenically unsaturated monomers includes a functional group that can react with a water-dispersible cross-linking agent, and at least one monomer of the plurality of ethylenically unsaturated monomers is present in an amount such that it can render the copolymer water dispersible, and a second block comprising a reaction product of at least one ethylenically unsaturated monomer, wherein at least a portion of which are non-functional, and a water-dispersible cross-linking agent, wherein the water-based copolymer is free of salt structures.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: April 19, 2005
    Assignee: BASF Corporation
    Inventors: Swaminathan Ramesh, Paul Harris, Wolfgang Bremser, Walter H. Ohrbom
  • Patent number: 6852821
    Abstract: Aqueous primary dispersions and coating materials comprising dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core-shell particles having a diameter?500 nm preparable by controlled free-radical microemulsion or miniemulsion polymerization of A) at least one olefinically unsaturated monomer and B) at least one olefinically unsaturated monomer which is different than the olefinically unsaturated monomer (A) and has the general formula I: R1R2C?CR3R4 (I), in which the radicals R1, R2, R3 and R4 independently of one another are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R1, R2, R3 and R4 are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals; and also their use.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: February 8, 2005
    Assignee: BASF Coatings AG
    Inventors: Maximilian Bendix, Wolfgang Bremser, David Christie
  • Patent number: 6828381
    Abstract: A sol-gel coating material, containing (A) an acrylate copolymer solution, consisting of at least one acrylate copolymer; (B) a parent lacquer which can be produced by the hydrolysis and condensation of at least one hydrolysable silane of the formula (I): SiR4; wherein: R=hydrolysable groups, hydroxy groups and non-hydrolysable groups, with the proviso that there should be at least one hydrolysable group; and (C) a sol which can be produced by the hydrolysis, condensation and complexing of (C1) at least one hydrolysable metal compound of the (II): MRn; wherein: M=aluminium, titanium or zirconium, R=the aforementioned given groups and n=3 or 4; of (C2) at least one organic thio compound of the formula (III): S(R1X)2, wherein R1 represents a two-bond organic radical and X represents hydroxyl, thiol and/or primary and/or secondary amino groups; and of (C3) a hydrolysable silane of the general formula (I).
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: December 7, 2004
    Assignee: BASF Coatings AG
    Inventors: Manuela Armbrust, Wolfgang Bremser, Horst Hintze-Brüning, Wilfried Stübbe, Peter Betz, Christel Ehlig
  • Publication number: 20040234487
    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: Application
    Filed: February 9, 2004
    Publication date: November 25, 2004
    Inventors: Wolfgang Bremser, Thomas Kruger, Wilma Locken, Peter-Heinz Rink, Stephan Schwarte
  • Patent number: 6822044
    Abstract: The use of a copolymer (A) preparable by free-radical polymerization of a) at least one olefinically unsaturated monomer and b) at least one olefinically unsaturated monomer different than the olefinically unsaturated monomer (a) and of the general formula I R1R2C═CR3R4  (I)  in which the radicals R1, R2, R3 and R4 each independently of one another are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R1, R2, R3 and are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals; in an aqueous medium, in a clearcoat material used to produce clearcoats KL and multicoat color and/or effect coating systems ML.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: November 23, 2004
    Assignee: BASF Coatings AG
    Inventor: Wolfgang Bremser
  • Patent number: 6818303
    Abstract: Powder clearcoat dispersions (powder slurry clearcoats) preparable by dispersing a powder clearcoat in an aqueous medium and wet milling the resulting powder slurry, at least one adduct of ethylene oxide and/or propylene oxide with at least one glycol being added to the powder slurry prior to wet milling; and the use of the powder slurry clearcoats for producing clearcoat finishes, especially as part of multicoat color and/or effect finishes.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: November 16, 2004
    Assignee: BASF Coatings AG
    Inventors: Walter Lassmann, Horst Hintze-Brüning, Wolfgang Bremser, Ulrike Röckrath
  • Patent number: 6815081
    Abstract: A multicoat color and/or effect coating system ML for a primed or an unprimed substrate comprising—lying above one another—(1) a surfacer coat FL which absorbs mechanical energy, and (2) a color and/or effect topcoat DL, or (1) a surfacer coat FL which absorbs mechanical energy, (2) a color and/or effect basecoat BL, and (3) a clearcoat KL, or (1) a color and/or effect basecoat BL and (2) a clearcoat KL, wherein at least one coat, preferably at least two coats, and in particular all coats of the multicoat system ML has or have been produced from a coating material comprising at least one constituent (A) preparable by free-radical polymerization of a) olefinically unsaturated monomers and b) olefinically unsaturated monomers I different than the olefinically unsaturated monomers (a): R1R2C=CR3R4  (I),  in which the radicals R1, R2, R3 and R4 each independently of one another are hydrogen atoms or alkyl, cycloalkyl, alkylcycloalkyl, cycloalkyalkyl, aryl, alkylaryl, cycloalk
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: November 9, 2004
    Assignee: BASF Coatings AG
    Inventor: Wolfgang Bremser
  • Publication number: 20040132902
    Abstract: Powder coating suspensions (powder slurries) and powder coating materials, the powder slurries being preparable by
    Type: Application
    Filed: October 30, 2003
    Publication date: July 8, 2004
    Inventors: Wolfgang Bremser, Werner-Alfons Jung, Michael Stang, Heiko Wolf
  • Publication number: 20040116637
    Abstract: A polymeric reaction product is prepared by a process comprising a reaction, under free radical conditions, of a reaction mixture containing at least one monomer (a) capable of undergoing free radical reactions, in the presence of a compound (I) of the formula: 1
    Type: Application
    Filed: October 2, 2003
    Publication date: June 17, 2004
    Inventors: Roman Benedikt Raether, Wolfgang Bremser, Yvonne Heischkel
  • Patent number: 6737468
    Abstract: The use of a copolymer (A) preparable by free-radical polymerization of a) at least one olefinically unsaturated monomer and b) at least one olefinically unsaturated monomer different than the olefinically unsaturated monomer (a) and of the general formula I R1R2C=CR3R4  (I), in which the radicals R1, R2, R3 and R4 each independently of one another are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R1, R2, R3 and R4 are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals, in an aqueous medium, in a basecoat material used to produce color and/or effect basecoats BL and multicoat color and/or effect coating systems ML.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: May 18, 2004
    Assignee: BASF Coatings AG
    Inventor: Wolfgang Bremser