Patents by Inventor Silke Hottenbacher

Silke Hottenbacher 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).

  • Clear paint compositions comprising hyperbranched, dendritic, hydroxyl-functional polyesters
    Patent number: 9334355
    Abstract: Disclosed is a hyperbranched, dendritic, hydroxyl-functional polyester comprising an OH number greater than or equal to 180 mg KOH/g as measured via DIN 53240 and to clearcoat compositions comprising said polyesters. Also disclosed are processes for preparing the disclosed polyester, methods of making coated automotive substrates by applying the disclosed clearcoat compositions to automotive substrates, and to coated substrates made therefrom.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: May 10, 2016
    Assignees: BASF Japan Ltd., BASF Coatings GmbH
    Inventors: Hitoshi Taniguchi, Eishi Tsukamoto, Hiroyuki Takagi, Andreas Poppe, Günter Klein, Veronika Lackstadter, Bianca Giesen, Petra Wagner, Björn Feldmann, Sabine Holtschulte, Julia Melzer, Tanja Bricke, Oliver Hilge, Benedikt Schnier, Silke Hottenbacher, Ulrike Clausen-Meiring
  • Coating compositions and coatings produced from them with high scratch resistance, weathering stability, and good optical properties
    Patent number: 8486539
    Abstract: The invention relates to coating compositions comprising (a) at least one hydroxyl-containing compound (A), (b) at least one saturated compound (B) having free and/or blocked isocyanate groups and containing at least in part hydrolyzable silane groups, and (c) at least one catalyst (D) for the crosslinking of silane groups, wherein the coating composition comprises as hydroxyl-containing compound (A) at least one hyperbranched, dendritic hydroxy-functional polyester in which on average at least one hydroxyl function of the polyester is esterified with at least one acid selected from the group of the isomeric C8 to C9 monocarboxylic acids. The present invention also provides a multistage coating method using these coating compositions, and also the use of the coating compositions as clearcoat material for producing multicoat effect and/or color paint systems, and use of the coating method for automotive OEM finishing and automotive refinish.
    Type: Grant
    Filed: August 22, 2009
    Date of Patent: July 16, 2013
    Assignee: BASF Coatings GmbH
    Inventors: Günter Klein, Björn Feldmann, Sabine Holtschulte, Silke Hottenbacher, Andreas Poppe, Ulrike Clausen-Meiring
  • CLEAR PAINT COMPOSITIONS COMPRISING HYPERBRANCHED, DENDRITIC, HYDROXYL- FUNCTIONAL POLYESTERS
    Publication number: 20110263789
    Abstract: Disclosed is a hyperbranched, dendritic, hydroxyl-functional polyester comprising an OH number greater than or equal to 180 mg KOH/g as measured via DIN 53240 and to clearcoat compositions comprising said polyesters. Also disclosed are processes for preparing the disclosed polyester, methods of making coated automotive substrates by applying the disclosed clearcoat compositions to automotive substrates, and to coated substrates made therefrom.
    Type: Application
    Filed: June 5, 2008
    Publication date: October 27, 2011
    Applicants: BASF COATINGS AG, BASF COATINGS JAPAN LTD.
    Inventors: Hitoshi Taniguchi, Eishi Tsukamoto, Hiroyuki Takagi, Andreas Poppe, Günter Klein, Veronika Lackstadter, Bianca Giesen, Petra Wagner, Björn Feldmann, Sabine Holtschulte, Julia Melzer, Tanja Bricke, Oliver Hilge, Benedikt Schnier, Silke Hottenbacher, Ulrike Clausen-Meiring
  • COATING COMPOSITIONS AND COATINGS PRODUCED FROM THEM WITH HIGH SCRATCH RESISTANCE, WEATHERING STABILITY, AND GOOD OPTICAL PROPERTIES
    Publication number: 20110245406
    Abstract: The invention relates to coating compositions comprising (a) at least one hydroxyl-containing compound (A), (b) at least one saturated compound (B) having free and/or blocked isocyanate groups and containing at least in part hydrolyzable silane groups, and (c) at least one catalyst (D) for the crosslinking of silane groups, wherein the coating composition comprises as hydroxyl-containing compound (A) at least one hyperbranched, dendritic hydroxy-functional polyester in which on average at least one hydroxyl function of the polyester is esterified with at least one acid selected from the group of the isomeric C8 to C9 monocarboxylic acids. The present invention also provides a multistage coating method using these coating compositions, and also the use of the coating compositions as clearcoat material for producing multicoat effect and/or color paint systems, and use of the coating method for automotive OEM finishing and automotive refinish.
    Type: Application
    Filed: August 22, 2009
    Publication date: October 6, 2011
    Applicant: BASF COATINGS GMBH
    Inventors: Günter Klein, Björn Feldmann, Sabine Holtschulte, Silke Hottenbacher, Andreas Poppe, Ulrike Clausen-Meiring