Patents Represented by Attorney Brian J. Myers
  • Patent number: 7977446
    Abstract: This invention relates to an organotin-based catalyst system for polyurethane synthesis that is useful in coatings applications. The catalyst has low activity in the absence of oxygen. When a coating mixture comprising the catalyst is sprayed and/or applied to a substrate as a thin film in air, the catalyst is activated. For solvent-based refinish systems comprising hydroxyl and isocyanate species at high solids levels, the catalyst system therefore provides extended viscosity stability, i.e., pot life.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: July 12, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jerald Feldman, Stephan J. McLain
  • Patent number: 7763679
    Abstract: The present invention is directed to a coating composition that when applied over untreated thermoplastic and thermosetting resinous substrates, produces an adherent coating thereon. The composition includes a crosslinkable component and a crosslinking component. The crosslinkable component includes a polymeric mix containing at least one crosslinkable copolymer polymerized from a monomer mixture comprising one or more ethylenically unsaturated monomers having on average 1 to 10, preferably 1 to 4 and more preferably 1 to 2 hydroxyl groups and a saturated hydrocarbon polymer. The crosslinkable component includes one or more cycloaliphatic polyisocyanate of the formula: R1—(R2—NCO)n wherein R1 is a substituted or unsubstituted cycloaliphatic group, R2 is independently selected from a direct bond, a straight aliphatic group or branched aliphatic group, and wherein n ranges from 2 to 10.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: July 27, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Patrick H. Corcoran, Sheau-Hwa Ma, Jozef Theresia Huybrechts
  • Patent number: 7740912
    Abstract: This invention relates to a method for forming a multi-layer coating on a vehicle body, comprised of applying primer coating, base coating, and clear coat layers in a wet-on-wet-on-wet manner, and simultaneously curing the applied three layers together in a single baking step. The primer layer comprises a film-forming binder (a) a caprolactone-modified linear acrylic polymer; and (b) an aminoplast resin crosslinking agent, wherein the composition is essentially free of crosslinked nonaqueous dispersion resin particles or crosslinked microgel resin particles or both. The resulting multi-layered coating film has excellent aesthetic appearance, strike-in resistance, chipping resistance, sag resistance, and film build even when formed in a three wet layered application method.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: June 22, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Peter William Uhlianuk, Delson Jayme Trindade, San C. Yuan
  • Patent number: 7714069
    Abstract: The present invention is directed to a method of producing an adherent coating over untreated thermoplastic and thermosetting resinous substrates from a coating composition that includes a crosslinkable component and a crosslinking component that are mixed prior to application and applied over the substrate. The crosslinkable component includes a polymeric mix containing at least one crosslinkable copolymer polymerized from a monomer mixture comprising one or more ethylenically unsaturated monomers having on average 1 to 10, preferably 1 to 4 and more preferably 1 to 2 hydroxyl groups and a saturated hydrocarbon polymer. The crosslinkable component includes one or more cycloaliphatic polyisocyanate of the formula: R1—(R2—NCO)n wherein R1 is a substituted or unsubstituted cycloaliphatic group, R2 is independently selected from a direct bond, a straight aliphatic group or branched aliphatic group, and wherein n ranges from 2 to 10.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: May 11, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Patrick Henry Corcoran, Sheau-Hwa Ma, Jozef Theresia Huybrechts
  • Patent number: 7652121
    Abstract: The present invention is directed to a rheology control agent for coating compositions. The rheology control agent includes a compound having the Formula (II) including isomers or mixtures of isomers thereof: wherein R, R9, R10, m and n are described in the specification. The coating compositions containing the rheology control agent have improved rheology control on application and are useful for OEM, refinishing or repainting the exterior of automobile and truck bodies and parts thereof.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: January 26, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Christian Peter Lenges, Yanhui Niu, Yu-Ling Hsiao, Jiang Ding, Robert John Barsotti, Renee J. Kelly, Robert James Butera, Young H. Kim
  • Patent number: 7652099
    Abstract: A process for making coating compositions with adjustable properties by blending two or more coating compositions of distinctly different attributes to achieve custom properties. The coating compositions formed herein are particularly useful in automotive refinish applications where customized properties are desired depending on the needs of the job.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: January 26, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Denise Elizabeth Fiori, Carl L. Kishbaugh, Laura Ann Lewin, Brian Edward Priore, Audrey Pamela Stephenson
  • Patent number: 7632386
    Abstract: A process for producing a CED coating by cathodic electrodeposition of a coating on an electrically conductive substrate in a CED coating bath and thermal cross-linking of the CED coating film obtained, wherein before thermal cross-linking outside of the CED coating bath, the CED coating film is brought into contact with an aqueous preparation of at least one metal compound, wherein the at least one metal compound is a compound of a metal with an oxidation number of +2 or higher and is selected from the group consisting of compounds containing cations of the metal, compounds forming cations of the metal in aqueous medium, compounds containing cations containing the metal, compounds forming cations containing the metal in aqueous medium, compounds comprising outwardly neutral complexes of the metal, colloidal oxide of the metal and colloidal hydroxide of the metal, wherein the metal itself is selected from the group consisting of metals having atomic numbers of 20 to 83 with the express exclusion of chromium,
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: December 15, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Klausjoerg Klein, Gabriele Buettner
  • Patent number: 7479525
    Abstract: A coating composition containing about 40-90% by weight of film forming binder and 10-60% by weight of an organic liquid carrier; wherein the binder contains about (a) 10-70% by weight, based on the weight of the binder, of a dispersed gelled acrylic polymer having (i) a core of gelled polymerized ethylenically unsaturated monomers which is not soluble in the organic liquid carrier and having chemically grafted thereto (ii) substantially linear stabilizer polymeric components that are soluble in the organic liquid carrier and comprise polymerized ethylenically unsaturated monomers and have a weight average molecular weight of about 500-20,000 determined by GPC (gel permeation chromatography) using polystyrene as the standard; wherein the core, the stabilizer polymeric component, or both contain at least 3% by weight of polymerized ethylenically unsaturated monomers having isocyanate groups attached thereto that are capable of reacting with component (b); (b) 30-90% by weight, based on the weight of the
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: January 20, 2009
    Assignee: E.I. Du Pont De Nemours & Company
    Inventors: Robert J. Barsotti, Laura Ann Lewin, Christopher Scopazzi