Patents by Inventor Karl-Friedrich Dossel

Karl-Friedrich Dossel 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: 8906509
    Abstract: A process for the production of a dark-color multi-layer coating, comprising the successive steps: (1) applying an NIR-opaque coating layer A? from a pigmented, solvent- or waterborne coating composition A to a substrate, (2) applying a coating layer B? from a pigmented coating composition B onto the substrate provided with coating layer A?, wherein the pigment content of coating composition A consists 90 to 100 wt. % of at least one aluminum flake pigment and 0 to 10 wt. % of at least one further pigment, which is selected in such a way that NIR-opaque coating layer A? exhibits low NIR absorption, wherein the pigment content of coating composition A comprises <90 wt. % of 10 to 80 nm thick aluminum flake pigments, wherein the pigment content of coating composition B consists 50 to 100 wt. % of at least one black pigment with low NIR absorption and 0 to 50 wt.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: December 9, 2014
    Assignee: Axalta Coating Systems IP Co., LLC
    Inventors: Gunter Richter, Karl-Friedrich Dossel
  • Patent number: 8835008
    Abstract: A process for the production of a dark-color multi-layer coating, comprising the successive steps: (1) applying an NIR-opaque coating layer A? from a pigmented, solvent- or waterborne coating composition A to a substrate, (2) applying a coating layer B? from a pigmented coating composition B onto the substrate provided with coating layer A?, wherein the pigment content of coating composition A consists 90 to 100 wt. % of at least one 10 to 80 nm thick aluminum flake pigment and 0 to 10 wt. % of at least one further pigment, which is selected in such a way that NIR-opaque coating layer A? exhibits low NIR absorption, wherein the pigment content of coating composition B consists 50 to 100 wt. % of at least one black pigment with low NIR absorption and 0 to 50 wt.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: September 16, 2014
    Assignee: Axalta Coating Systems IP Co., LLC
    Inventors: Gunter Richter, Karl-Friedrich Dossel
  • Publication number: 20110070455
    Abstract: A process for the production of a dark-color multi-layer coating, comprising the successive steps: (1) applying an NIR-opaque coating layer A? from a pigmented, solvent- or waterborne coating composition A to a substrate, (2) applying a coating layer B? from a pigmented coating composition B onto the substrate provided with coating layer A?, wherein the pigment content of coating composition A consists 90 to 100 wt. % of at least one aluminum flake pigment and 0 to 10 wt. % of at least one further pigment, which is selected in such a way that NIR-opaque coating layer A? exhibits low NIR absorption, wherein the pigment content of coating composition A comprises <90 wt. % of 10 to 80 nm thick aluminum flake pigments, wherein the pigment content of coating composition B consists 50 to 100 wt. % of at least one black pigment with low NIR absorption and 0 to 50 wt.
    Type: Application
    Filed: May 27, 2009
    Publication date: March 24, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Gunter Richter, Karl-Friedrich Dossel
  • Publication number: 20110070427
    Abstract: A process for the production of a dark-color multi-layer coating, comprising the successive steps: (1) applying an NIR-opaque coating layer A? from a pigmented, solvent- or waterborne coating composition A to a substrate, (2) applying a coating layer B? from a pigmented coating composition B onto the substrate provided with coating layer A?, wherein the pigment content of coating composition A consists 90 to 100 wt. % of at least one 10 to 80 nm thick aluminum flake pigment and 0 to 10 wt. % of at least one further pigment, which is selected in such a way that NIR-opaque coating layer A? exhibits low NIR absorption, wherein the pigment content of coating composition B consists 50 to 100 wt. % of at least one black pigment with low NIR absorption and 0 to 50 wt.
    Type: Application
    Filed: May 27, 2009
    Publication date: March 24, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Gunter Richter, Karl-Friedrich Dossel
  • Patent number: 6355307
    Abstract: Clear lacquer coating media suitable for multi-layer coatings, containing self-crosslinking or externally crosslinkable binder vehicles, organic solvents, and in the case of externally-crosslinkable binder vehicles containing one or more crosslinking agents which are different from aldehyde condensation resins, and optionally also containing one or more reactive thinners and customary additives for clear lacquers, with an additional content of A) 0.1 to 3% by weight one or more urea compounds, and B) 0.05 to 10% by weight one or more substances which supply formaldehyde, with respect in each case to the resin solids content which is formed by the binder vehicles, reactive thinners and crosslinking agents.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: March 12, 2002
    Assignee: Dupont Performance Coatings GmbH & Co.
    Inventors: Stephan Brenke, Karl-Friedrich Dössel, Friedrich Herrmann, Heinz-Walter Reifferscheidt
  • Patent number: 6333077
    Abstract: A process for lacquer coating substrates with a colored and/or effect base lacquer and a clear lacquer topcoat, in which a colored and/or effect base lacquer layer of a base lacquer coating composition is applied onto a substrate and is provided in a wet-on-wet process with a clear lacquer coating. Before being jointly stoved or jointly cured with the base lacquer layer, the uncured clear lacquer layer is exposed to high-energy radiation. In the clear lacquer coating composition, the resin solids content contains 50 to 98 wt. % of a system A) thermally curable by addition and/or condensation reactions, which system contains substantially no free-radically polymerisable double bonds and substantially no groups capable of reacting in another way with free-radically polymerisable double bonds of a system B). The resin solids content further contains 2 to 50 wt.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: December 25, 2001
    Assignee: Herberts GmbH & Co. KG
    Inventors: Karin Maag, Karl-Friedrich Dössel
  • Patent number: 4652507
    Abstract: Disclosed is an electrophotographic recording material comprising a photoconductive double layer disposed on an electrically conductive support, which double layer comprises a charge carrier-generating layer and a charge transport layer. The interface region of the charge carrier-generating and charge transport layers defines a mixing zone into which one or more of the constituents of the separate layers have diffused. A process for producing the electrophotographic recording material is also disclosed.
    Type: Grant
    Filed: August 14, 1984
    Date of Patent: March 24, 1987
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl-Friedrich Dossel, Jurgen Lingnau