Patents by Inventor Bernard Dunkel

Bernard Dunkel 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).

  • PRINTABLE COMPOSITIONS CONTAINING SILVER NANOPARTICLES, PROCESSES FOR PRODUCING ELECTRICALLY CONDUCTIVE COATINGS USING THE SAME, AND COATINGS PREPARED THEREBY
    Publication number: 20120138347
    Abstract: Printable compositions comprising: (a) 5 to 40 parts by weight of silver nanoparticles having a maximum effective diameter of 150 nm, as determined by laser correlation spectroscopy; (b) 50 to 99.5 parts by weight of water; (c) 0.01 to 15 parts by weight of a dispersing agent; (d) 0.5 to 5 parts by weight of a film former; and (g) 30 to 70 parts by weight of metal particles having a maximum effective diameter of 10 ?m, as determined by laser correlation spectroscopy; wherein the printable composition has a viscosity of at least 1 Pa·s; processes for producing electrically conductive coatings using such compositions and electrically conductive coatings prepared thereby.
    Type: Application
    Filed: January 13, 2012
    Publication date: June 7, 2012
    Applicant: Bayer MaterialScience AG
    Inventors: Stefan BAHNMÜLLER, Stefanie EIDEN, Stephan Michael MEIER, Dirk STORCH, Bernard DUNKEL
  • Printable compositions containing silver nanoparticles, processes for producing electrically conductive coatings using the same, and coatings prepared thereby
    Patent number: 8101097
    Abstract: Printable compositions comprising: (a) 5 to 40 parts by weight of silver nanoparticles having a maximum effective diameter of 150 nm, as determined by laser correlation spectroscopy; (b) 50 to 99.5 parts by weight of water; (c) 0.01 to 15 parts by weight of a dispersing agent; (d) 0.5 to 5 parts by weight of a film former; and (g) 30 to 70 parts by weight of metal particles having a maximum effective diameter of 10 ?m, as determined by laser correlation spectroscopy; wherein the printable composition has a viscosity of at least 1 Pa·s; processes for producing electrically conductive coatings using such compositions and electrically conductive coatings prepared thereby.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: January 24, 2012
    Assignee: Bayer MaterialScience AG
    Inventors: Stefan Bahnmüller, Stefanie Eiden, Stephan Michael Meier, Dirk Storch, Bernard Dunkel
  • PRINTABLE COMPOSITIONS CONTAINING SILVER NANOPARTICLES, PROCESSES FOR PRODUCING ELECTRICALLY CONDUCTIVE COATINGS USING THE SAME, AND COATINGS PREPARED THEREBY
    Publication number: 20100040846
    Abstract: Printable compositions comprising: (a) 5 to 40 parts by weight of silver nanoparticles having a maximum effective diameter of 150 nm, as determined by laser correlation spectroscopy; (b) 50 to 99.5 parts by weight of water; (c) 0.01 to 15 parts by weight of a dispersing agent; (d) 0.5 to 5 parts by weight of a film former; and (g) 30 to 70 parts by weight of metal particles having a maximum effective diameter of 10 ?m, as determined by laser correlation spectroscopy; wherein the printable composition has a viscosity of at least 1 Pa·s; processes for producing electrically conductive coatings using such compositions and electrically conductive coatings prepared thereby.
    Type: Application
    Filed: May 15, 2009
    Publication date: February 18, 2010
    Applicant: Bayer MaterialScience AG
    Inventors: Stefan Bahnmüller, Stefanie Eiden, Stephan Michael Meier, Dirk Storch, Bernard Dunkel