Patents by Inventor Colin Dudgeon Anderson

Colin Dudgeon Anderson 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: 10131799
    Abstract: The invention pertains to an antifouling coating composition comprising a copper acrylate polymer, 2-(p-chlorophenyl)-3-cyano-4-bromo-5-trifluoromethyl pyrrole (tralopyril), and solvent, with the coating composition being substantially free of further biocidal compounds, wherein the copper acrylate polymer is present in an amount of 60-99 wt. % and the tralopyril is present in an amount of 0.1-30 wt. %, the weight percentages for copper acrylate polymer and tralopyril being calculated on the dry weight of the coating composition. In one embodiment, the coating composition comprises 30-70 wt % of solvent, the weight percentage of solvent being calculated on the wet weight of the coating composition. It has been found that the coating composition according to the invention combines a good antifouling performance against both weed and shell fouling, for at least 12 months, i.e. a yacht season, with a high gloss finish, and, when a suitable application method is used, a smooth and level surface.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: November 20, 2018
    Assignee: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Colin Dudgeon Anderson, Scott Paul Thompson, Frank Lasasso, Kate Moss
  • Publication number: 20160326379
    Abstract: The invention pertains to an antifouling coating composition comprising a copper acrylate polymer, 2-(p-chlorophenyl)-3-cyano-4-bromo-5-trifluoromethyl pyrrole (tralopyril), and solvent, with the coating composition being substantially free of further biocidal compounds, wherein the copper acrylate polymer is present in an amount of 60-99 wt. % and the tralopyril is present in an amount of 0.1-30 wt. %, the weight percentages for copper acrylate polymer and tralopyril being calculated on the dry weight of the coating composition. In one embodiment, the coating composition comprises 30-70 wt % of solvent, the weight percentage of solvent being calculated on the wet weight of the coating composition. It has been found that the coating composition according to the invention combines a good antifouling performance against both weed and shell fouling, for at least 12 months, i.e. a yacht season, with a high gloss finish, and, when a suitable application method is used, a smooth and level surface.
    Type: Application
    Filed: January 6, 2015
    Publication date: November 10, 2016
    Inventors: Colin Dudgeon ANDERSON, Scott Paul THOMPSON, Frank LASASSO, Kate MOSS
  • Patent number: 9290669
    Abstract: The invention provides a waterborne antifouling coating composition comprising (i) a binder polymer, (ii) a pigment and (iii) no biocide or a biocide selected from (a) a copper biocide or a copper biocide in combination with at least one or more co-biocide(s), or (b) a copper-free biocide or a copper-free biocidein combination with at least one or more co-biocide(s), with the proviso that the biocide is not a copper biocide in combination with zinc pyrithione, and wherein the pigment volume concentration of the waterborne antifouling coating composition is greater than 80% and less than 95%.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: March 22, 2016
    Assignee: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Graeme Dunford, Colin Dudgeon Anderson
  • Publication number: 20140318433
    Abstract: The invention provides a waterborne antifouling coating composition comprising (i) a binder polymer, (ii) a pigment and (iii) no biocide or a biocide selected from (a) a copper biocide or a copper biocide in combination with at least one or more co-biocide(s), or (b) a copper-free biocide or a copper-free biocidein combination with at least one or more co-biocide(s), with the proviso that the biocide is not a copper biocide in combination with zinc pyrithione, and wherein the pigment volume concentration of the waterborne antifouling coating composition is greater than 80% and less than 95%.
    Type: Application
    Filed: September 3, 2012
    Publication date: October 30, 2014
    Applicant: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Graeme Dunford, Colin Dudgeon Anderson