Abstract: A pseudoplastic clearcoat slurry comprising solid and/or highly viscous particles which are dimensionally stable under storage and application conditions and at least one wetting agent selected from the group consisting of alkoxylated fatty alcohols having from 16 to 18 carbon atoms in the alkyl radical and containing on average per molecule at least 20 oxaalkanediyl groups; process for preparing it, and its use.
Type:
Grant
Filed:
July 23, 2002
Date of Patent:
January 27, 2009
Assignee:
BASF Coatings AG
Inventors:
Fatmir Raka, Joachim Woltering, Heike Florack
Abstract: A process for producing multicoat paint systems by (I) applying a dual-cure primer (A) curable thermally and with actinic radiation to a substrate to give a primer film (A), (II) exposing the primer film (A) to actinic radiation to give a partially cured primer film (A), (III) applying a pigmented coating material (B) curable thermally and/or a pigmented dual-cure coating material (B) to the partially cured primer film (A) to give at least one pigmented film (B), (IV) exposing the dual-cure film (B) to actinic radiation to give a partially cured film (B), (V) applying a clearcoat material (C) curable with actinic radiation and/or a dual-cure clearcoat material (C) to the film (B) to give a clearcoat and/or a dual-cure clearcoat film (C), (VI) exposing the clearcoat film(s) (C) to actinic radiation to give a dual-cure clearcoat (C) and/or a partially cured clearcoat film (C), and (VII) subjecting the films (A), (B), and (C) to joint thermal curing when still only partially cured.
Type:
Grant
Filed:
January 31, 2003
Date of Patent:
January 20, 2009
Assignee:
BASF Coatings AG
Inventors:
Hubert Baumgart, Daniel Kussel, Yvonne Lichte
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
Abstract: Powder coating materials preparable by (1) mixing at least two liquid components comprising in each case at least one liquid starting product in a static mixer, to give a molecularly disperse and/or finely dispersed liquid mixture, (2) emulsifying the liquid mixture (1) in an aqueous medium in a dispersing unit, to give an aqueous emulsion of liquid particles, (3) cooling the emulsion (2) so that a suspension of dimensionally stable particles is formed, (4) isolating the dimensionally stable particles from the suspension (3) or alternatively (3) isolating the dimensionally stable particles directly from the emulsion (2); and also processes for preparing them and their use as coating materials, adhesives, and sealing compounds or to prepare such compositions.
Type:
Grant
Filed:
May 24, 2002
Date of Patent:
November 11, 2008
Assignee:
BASF Coatings AG
Inventors:
Robert Bayer, Werner-Alfons Jung, Michael Mauss, Hans-Joachim Weintz, Jan Berg, Reinhard Polke, Heiko Wolf, Michael Stang
Abstract: Coating materials curable thermally, or thermally and with actinic radiation, comprising (A) binder selected from the group consisting of random, alternating and block, linear, branched and comb polyaddition resins, polycondensation resins, and addition (co)polymers of olefinically unsaturated monomers, curable physically, thermally, with actinic radiation, and thermally and with actinic radiation; and (B) nanoparticles selected from the group consisting of nanoparticles modified with at least one compound of the general formula I: [(S—)o-L-]n-M-(—X—R)m?n , ??(I) ?where the indices and the variables have the following meanings: S is a reactive functional group having at least one bond which can be activated with actinic radiation; L is at least one divalent organic linking group; X independently at each occurrence is an oxygen atom, sulfur atom or>NR1, where R1=hydrogen atom or alkyl group having from 1 to 4 carbon atoms; M is a metal atom; R is a monovalent organic radical; o is an integer from 1 to
Type:
Grant
Filed:
August 10, 2002
Date of Patent:
November 4, 2008
Assignee:
BASF Coatings AG
Inventors:
Uwe Meisenburg, Hubert Baumgart, Daniel Kussel
Abstract: The present invention relates to basecoat materials comprising one or more water soluble, fatty acid modified epoxy esters and/or one or more fatty acid modified alkyd resins, to processes for preparing them, and to their use.
Abstract: Coating materials, processes for preparing them, and their use. The coating materials include hydroxyl-containing (meth)acrylate (co)polymer, carbamate- and hydroxyl-functional compound, an amino resin, and a triazine compound. At least 10 equivalent % of the hydroxyl groups present in (A) and/or (B) are primary hydroxyl groups. The coating materials after curing have a storage modulus E? in the rubber-elastic range of at least 1.5*107 Pa, the storage modulus E? having been measured by dynamic mechanical thermoanalysis (DMTA) on homogeneous free films with a thickness of 40±10 ?m.
Type:
Grant
Filed:
January 20, 2004
Date of Patent:
September 9, 2008
Assignee:
BASF Coatings AG
Inventors:
Guido Wilke, Vince Cook, Thomas Farwick
Abstract: The invention provides heat-curable thixotropic mixtures containing carbamate and/or allophanate groups, including at least one oligomer and/or polymer containing at least one of carbamate and allophanate groups, and at least one thixotropic agent that is a urea derivative preparable by reacting at least one amine and/or water with at least one isocyanate in the presence of at least one amino resin. The invention further provides processes for preparing the mixtures and coating materials, adhesives and sealing compounds prepared from the mixtures.
Type:
Grant
Filed:
August 26, 2005
Date of Patent:
September 2, 2008
Assignee:
BASF Coatings AG
Inventors:
Hubert Baumgart, Michael A Gessner, Bruce Oermann, Paul J Harris
Abstract: Transparent coatings with a thickness of at least 30 ?m, a relative elastic resilience to DIN 55676 of at least 70%, and a scratch resistance corresponding to a score of not more than 2 in the steel wool scratch test to DIN 1041 after 10 double strokes; process for producing them, and their use.
Type:
Grant
Filed:
July 5, 2003
Date of Patent:
August 26, 2008
Assignee:
BASF Coatings AG
Inventors:
Manuela Niemeier, Andreas Poppe, Wilfried Stübbe, Elke Westhoff, Jens-Dieter Fischer
Abstract: Process for producing a multilayer coating, in which a first coating (A) has applied to it a subsequent coating material (B) which is then cured involves selecting and/or modifying the first coating (A) and/or selecting the coating material (B) in such a way that the quotient (Q) formed from the surface energy of the second coating (B) and the surface energy of the first coating (A) is less than or equal to 1, and its use.
Type:
Grant
Filed:
January 30, 2004
Date of Patent:
July 15, 2008
Assignee:
BASF Coatings AG
Inventors:
Klaus Holzapfel, Peter Mayenfels, Hubert Baumgart, Theodora Dirking
Abstract: A liquid coating material in the form of a water-in-oil dispersion which is curable with actinic radiation, is substantially or completely free from organic solvents and has a pH<5, comprising (A) at least one constituent selected from the group consisting of low molecular mass, oligomeric, and polymeric organic compounds which contain at least one group which can be activated with actinic radiation, and also air-drying and oxidatively drying alkyd resins, (B) at least one acidic ester of polyphosphoric acid and at least one compound (b1) containing at least one hydroxyl group and at least one group which can be activated with actinic radiation, (C) at least one acidic ester of monophosphoric acid and at least one compound (c1) containing at least one hydroxyl group and at least one group which can be activated with actinic radiation, and (D) at least one acidic, corrosion-inhibiting pigment based on polyphosphoric acid; process for its preparation, and its use as a coil coating primer.
Type:
Grant
Filed:
November 5, 2003
Date of Patent:
June 10, 2008
Assignee:
BASF Coatings AG
Inventors:
Maxime Allard, Thomas Reher, Dominique Kauffer
Abstract: An aqueous coating material comprising at least one epoxy resin as binder and at least one polyamine as curing agent, wherein said epoxy resin or at least one of the epoxy resins (i) is solid per se at room temperature and/or is present in a powder coating material, and (ii) the solid epoxy resin and/or the epoxy resin powder coating material is or are present in fine dispersion in an aqueous dispersion comprising the polyamine or polyamines; and the use of the aqueous coating material to produce antistonechip primers.
Type:
Grant
Filed:
November 27, 2001
Date of Patent:
March 4, 2008
Assignee:
BASF Coatings AG
Inventors:
Lutz-Werner Gross, Ludwig Moorkamp, Heinz-Ulrich Grumpe
Abstract: Powder slurries curable thermally and with actinic radiation and comprising solid and/or highly viscous particles dimensionally stable under storage and application conditions, comprising (A) a binder free of carbon-carbon double bonds activatable with actinic radiation, comprising at least one (meth)acrylate copolymer containing on average per molecule at least one isocyanate-reactive functional group and at least one ion-forming group, (B) at least one blocked and/or part-blocked polyisocyanate, and (C) at least one olefinically unsaturated constituent which is free of isocyanate-reactive functional groups and contains on average per molecule more than four carbon-carbon double bonds activatable with actinic radiation; processes for preparing them, and their use.
Type:
Grant
Filed:
March 28, 2002
Date of Patent:
November 20, 2007
Assignee:
BASF Coatings AG
Inventors:
Guido Wilke, Ulrike Röckrath, Joachim Woltering, Egon Wegner, Hubert Baumgart, Günther Ott
Abstract: An aqueous coating material curable physically, thermally, or both thermally and with actinic radiation, comprising A) at least one ionically and/or nonionically stabilized polyurethane which is saturated, unsaturated and/or grafted with olefinically unsaturated compounds, as binder, B) at least one color and/or effect pigment, and C) at least one colorless, transparent or opaque powder which is substantially inert with respect to the other constituents of the coating material and whose particles have an average size of from 1.0 to 10.0 ?m and a density of from 0.8 to 3.6 g cm?3; and its use for producing single-coat and multicoat color and/or effect paint systems on primed and unprimed substrates.
Type:
Grant
Filed:
January 30, 2001
Date of Patent:
November 20, 2007
Assignee:
BASF Coatings AG
Inventors:
Egon Wegner, Stephan Schwarte, Frank Jansing
Abstract: A solventborne coating material curable physically, thermally, or thermally and with actinic radiation, comprising A) at least one binder curable physically, thermally, or thermally and with actinic radiation, B) at least one color and/or effect pigment, and C) at least one colorless, transparent or opaque powder which is substantially inert with respect to the other constituents of the coating material and whose particles have an average size of from 1.0 to 10.0 ?m and a density of from 1.25 to 3.6 g cm?3 and its use as basecoat material for producing multicoat color and/or effect paint systems.
Type:
Grant
Filed:
June 18, 2002
Date of Patent:
August 28, 2007
Assignee:
BASF Coatings AG
Inventors:
Stephan Schwarte, Willi Vesper, Egon Wegner, Kerstin Ziegler
Abstract: A corrosion inhibiting mixture comprising (A1) corrosion-inhibiting pigments, (A2) amorphous silica modified with metal ions, and (A3) at least one compound of the general formula I: Mn(X)m??(I) in which the variables and indices have the following meanings: M is at least one central atom selected from the group of Lewis acceptors, X stands for Lewis donor ligands having at least one bridging atom selected from elements of main groups 5 and 6 of the periodic table of the elements, n is from 1 to 500, and m is from 3 to 2000; coating materials comprising said mixture and their use as coil coating materials.
Type:
Grant
Filed:
January 15, 2003
Date of Patent:
May 22, 2007
Assignee:
BASF Coatings AG
Inventors:
Horst Hintze-Brüning, Lothar Jandel, Ralf Neuhaus, Markus Ruckpaul, Marc Bäumer
Abstract: Coating materials comprising at least one electrically conductive pigment (A1) having an at least bimodal particle size distribution and at least one binder, the pigment/binder ratio being >1.5:1, can be used as coil coating materials.
Type:
Grant
Filed:
January 15, 2003
Date of Patent:
April 10, 2007
Assignee:
BASF Coatings AG
Inventors:
Horst Hintze-Brüning, Lothar Jandel, Ralf Neuhaus, Markus Ruckpaul, Marc Bäumer
Abstract: The invention relates to a method for producing chromophore and/or effect giving multilayer lacquers according to the wet-on-wet method. A water base lacquer is applied which contains at least one graft copolymer containing (A) at least one (meth)acrylate copolymer and (B) at least one polyurethane. The graft copolymer can be produced by (1) dispersing at least one hydrophilic or hydrophobic self cross-linking polyurethane (B) with a statistical average of at least one terminal and/or at least one lateral olefinically unsaturated group and at least one blocked isocyanate group per molecule in an aqueous medium. (2) A mixture of a at least one monomer (a1) with at least one isocyanate reactive functional group at last one monomer (a2) that can be copolymerized therewith is subsequently radically copolymerized in an emulsion in the presence of the polyurethane (B) or the polyurethanes (B). A powder slurry transparent lacquer layer is added to the resulting base lacquer layer.
Type:
Grant
Filed:
October 9, 2000
Date of Patent:
April 3, 2007
Assignee:
BASF Coatings AG
Inventors:
Stephan Schwarte, Egon Wegner, Harald Angermüller
Abstract: Polysiloxane sols preparable by subjecting (1) in a first stage (A) a silicon compound of the general formula I: (ZoL—)mSi(H)n(R)p, ??(I) which is free of carbamate groups and where o is an integer from 1 to 5; m is 0, 1, 2 or 3; n is an integer from 1 to 4; p is 0, 1 , 2 or 3; Z is a reactive functional group, excluding carbamate group; L is an at least divalent, linking, organic group; H is a hydrolyzable, monovalent, organic group or hydrolyzable atom; R is a nonhydrolyzable, monovalent, organic group; to partial hydrolysis and condensation in the presence (B) of at least one crosslinking agent, and then subjecting (2) in a further stage, the reaction mixture (1) to complete hydrolysis and condensation with (C) a hydrolyzable, carbamate-functional silicon compound of the general formula II: {[HR1N—(O)C—O—]rL—}sSi(H)t(R)u ??(II) where R1 is a hydrogen atom or group R; r is an integer from 1 to 5; s is 1, 2 or 3; t is 1, 2 or 3; u 0, 1 or 2; and their use as coating materials, adhesives, and
Abstract: Surface-modified nanoparticles whose surface is covered completely or near-completely with (A) modifying groups which are attached covalently to the surface via linking functional groups (a) and contain inert spacer groups (b) and contain reactive functional groups (c) which are connected via the groups (b) to the groups (a) and are inert toward the reactive functional groups of the surface to be modified, (B) modifying groups which are attached covalently to the surface via linking functional groups (a) and contain inert groups (d) having a smaller hydrodynamic volume VH than the inert spacer groups (Ab), and (C) modifying groups which are attached to the surface via linking functional groups (a) which contain at least one silicon atom, contain inert groups (e), and have a smaller hydrodynamic volume VH than the modifying groups (A); dispersions comprising the nanoparticles, processes for preparing them, and their use.
Type:
Grant
Filed:
October 2, 2003
Date of Patent:
January 30, 2007
Assignee:
BASF Coatings AG
Inventors:
Andreas Poppe, Elke Westhoff, Winfried Stübbe, Beate Gebauer, Peter Mayenfels