Patents by Inventor Walter Lassmann

Walter Lassmann 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: 7682666
    Abstract: Method of preparing single-layer or multilayer color and/or effect films comprising a color and/or effect layer, by (1) continuously applying a component amount of a basecoat material (A) by means of a directed application technique to a carrier, the applicator (1) and the carrier being in relative motion with respect to one another, to construct a portion of the color and/or effect layer, (2) at least once, continuously applying the remainder of the basecoat material (A) and/or a basecoat material (B), which is different than the basecoat (A), to the component layer (1) formed by an application technique (2) which in the resulting component layer (2) induces no arrangement of the pigments in a preferential direction, the applicator (2) and the carrier being in relative motion with respect to one another, to further or fully construct the color and/or effect layer, and (3) drying or partly or fully curing the color and/or effect layer.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: March 23, 2010
    Assignee: BASF Coatings AG
    Inventors: Horst Hintze-Bruning, Frank Strickmann, Walter Lassmann
  • Patent number: 7625630
    Abstract: Disclosed is a combination effect coat that simultaneously provides at least one function selected from the group consisting of color, effect, or the combination thereof as well as at least one function selected from the group consisting of corrosion protection, adhesion promotion, absorption of mechanical energy, or the combination of two or more of the foregoing. The combination effect coat is produced by the application and curing of a pigmented powder slurry wherein the pigmented powder slurry is curable thermally, or curable thermally and with actinic radiation. The pigmented powder slurry consists of finely divided dimensionally stable constituents having an average particle size of from 0.8 to 40 ?m, has a residual volatile solvent content of less than 1% by weight, and comprises a (meth)acrylate copolymer having an epoxide equivalent weight of 400 to 2500; and a color pigment, an effect pigment, or a combination thereof.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: December 1, 2009
    Assignee: BASF Coatings AG
    Inventors: Walter Lassmann, Klaus-Dieter Stegemann, Horst Hintze-Brüning, Joachim Woltering, Wolfgang Reckordt
  • Publication number: 20070104898
    Abstract: Method of preparing single-layer or multilayer color and/or effect films comprising a color and/or effect layer, by (1) continuously applying a component amount of a basecoat material (A) by means of a directed application technique to a carrier, the applicator (1) and the carrier being in relative motion with respect to one another, to construct a portion of the color and/or effect layer, (2) at least once, continuously applying the remainder of the basecoat material (A) and/or a basecoat material (B), which is different than the basecoat (A), to the component layer (1) formed by an application technique (2) which in the resulting component layer (2) induces no arrangement of the pigments in a preferential direction, the applicator (2) and the carrier being in relative motion with respect to one another, to further or fully construct the color and/or effect layer, and (3) drying or partly or fully curing the color and/or effect layer.
    Type: Application
    Filed: December 21, 2006
    Publication date: May 10, 2007
    Inventors: Horst Hintze-Bruning, Frank Strickmann, Walter Lassmann
  • Patent number: 6927253
    Abstract: Powder clearcoat dispersions (powder slurry clearcoats) preparable by adding a secondary (meth)acrylate copolymer dispersion in liquid and/or powder form to a powder slurry during and/or after its preparation; and the use thereof for producing clearcoat finishes, especially as part of multicoat color and/or effect finishes.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: August 9, 2005
    Assignee: BASF Coatings AG
    Inventors: Walter Lassmann, Heinz-Peter Rink, Horst Hintze-Brüning, Klaus-Dieter Stegmann
  • 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
  • Publication number: 20040175572
    Abstract: Single-layer or multilayer color and/or effect films comprising a color and/or effect layer, preparable by
    Type: Application
    Filed: January 8, 2004
    Publication date: September 9, 2004
    Inventors: Horst Hintze-Bruning, Frank Strickmann, Walter Lassmann
  • Publication number: 20040137165
    Abstract: A color and/or effect coating system for a primed or unprimed substrate, said system comprising a combination effect coat which can be prepared from a pigmented powder slurry.
    Type: Application
    Filed: October 29, 2002
    Publication date: July 15, 2004
    Inventors: Walter Lassmann, Klaus-Dieter Stegemann, Horst Hintze-Brning, Joachim Woltering, Wolfgang Reckordt
  • Patent number: 6706333
    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), 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; to produce deformable color and/or effect laminates and dry-paint films.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: March 16, 2004
    Assignee: BASF Coatings AG
    Inventors: Wolfgang Bremser, Horst Hintze-Brüning, Walter Lassmann
  • Publication number: 20030162888
    Abstract: The use of a copolymer (A) preparable by free-radical polymerization of
    Type: Application
    Filed: December 16, 2002
    Publication date: August 28, 2003
    Inventors: Wolfgang Bremser, Horst Hintze-Bruning, Walter Lassmann
  • Publication number: 20030150359
    Abstract: A powder coating material or powder coating dispersion (powder slurry) comprising at least one hydrophilic effect pigment, and the use thereof.
    Type: Application
    Filed: November 12, 2002
    Publication date: August 14, 2003
    Inventor: Walter Lassmann
  • Patent number: 6352586
    Abstract: The present invention relates to a water-thinnable coating composition comprising binders, inorganic pigments, and, if desired, organic pigments and also further customary additives such as solvents, fillers, plasticizers, stabilizers, wetting agents, dispersing auxiliaries, levelling agents, defoamers, catalysts and also further additives, individually or in a mixture with one another, and comprises at least one phosphoric ester and at least one fatty alcohol alkoxylate.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: March 5, 2002
    Assignee: BASF Coatings AG
    Inventor: Walter Lassmann
  • Patent number: 5601880
    Abstract: The invention relates to basecoats for the production of paint systems of the basecoat-clearcoat type, which comprise a water-thinnable polyacrylate resin obtainable by polymerizing in a first stage in an organic solvent ethylenically unsaturated monomers free from carboxyl groups and, after at least 80% by weight of these monomers have reacted, polymerizing in a second stage monomers containing carboxyl groups and neutralizing the polyacrylate resin obtained in this way.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: February 11, 1997
    Assignee: BASF Lacke & Farben, AG
    Inventors: Stephan Schwarte, Arnold Dobbelstein, deceased, Walter Lassmann, Susanne Piontek, J urgen Niemann, Klaus Eikelmann, Ulrich Poth
  • Patent number: 5502101
    Abstract: The invention relates to basecoats for the production of finishes of the basecoat/clearcoat type which comprise a water-thinnable polyacrylate resin which can be obtained by polymerizing, either successively or in part amounts, monomers containing carboxyl groups and monomers free from carboxyl groups in an organic solvent to form a polyacrylate resin which is neutralized, at least partially, and dispersed in water.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: March 26, 1996
    Assignee: BASF Lacke + Farben, AG
    Inventors: Stephan Schwarte, Arnold Dobbelstein, deceased, Ju/ rgen Niemann, Walter Lassmann, Susanne Piontek, Ulrich Poth, Klaus Eikelmann
  • Patent number: 5368944
    Abstract: The invention relates to a process for the production of multicoat finishes, in which(1) an aqueous pigmented basecoat containing a waterthinnable polyurethane resin is applied to the substrate surface as basecoat,(2) a polymer film is formed from the coating applied in stage (1),(3) a transparent topcoat is applied to the basecoat obtained in this way and subsequently(4) the basecoat is baked together with the topcoat, and the water-thinnable polyurethane resin contains structural units of the formula ##STR1## X representing a divalent aromatic hydrocarbon radical and R.sup.1 and R.sup.2 representing an alkyl radical having 1 to 4 carbon atoms.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: November 29, 1994
    Assignee: BASF Lacke + Farben Aktiengesellschaft
    Inventors: Michael Hartung, Walter Lassmann, Ulrich Poth, Egon Wegner