Patents by Inventor Frank Wan

Frank Wan 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).

  • Surface treatment agent for galvanized steel sheets, galvanized steel sheets and production methods thereof
    Patent number: 8906990
    Abstract: Disclosed is a surface treatment agent for galvanized steel sheets, which comprises epoxy-containing silane derivates, alkyl-containing silane derivates, alkoxy silane derivates and one or more selected from the group consisting of a cationic polymer aqueous dispersion, a non-ionic polymer aqueous dispersion and a water-soluble polymer. Also disclosed is a method for producing it, which comprises mixing each component uniformly for 0.5 to 8 hours at 5 to 70° C. Further provided are galvanized steel sheets coated with the surface treatment agent on the surface and a production method thereof. The surface treatment agent for galvanized steel sheets has excellent corrosion resistance, alkali resistance, solvent resistance, recoating property, high temperature resistance and electrical conductivity.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: December 9, 2014
    Inventors: Frank Wan, Jimmy Zhang, Kevin Meagher
  • SURFACE TREATMENT AGENT FOR GALVANIZED STEEL SHEETS, GALVANIZED STEEL SHEETS AND PRODUCTION METHODS THEREOF
    Publication number: 20110281118
    Abstract: Disclosed is a surface treatment agent for galvanized steel sheets, which comprises epoxy-containing silane derivates, alkyl-containing silane derivates, alkoxy silane derivates and one or more selected from the group consisting of a cationic polymer aqueous dispersion, a non-ionic polymer aqueous dispersion and a water-soluble polymer. Also disclosed is a method for producing it, which comprises mixing each component uniformly for 0.5 to 8 hours at 5 to 70° C. Further provided are galvanized steel sheets coated with the surface treatment agent on the surface and a production method thereof. The surface treatment agent for galvanized steel sheets has excellent corrosion resistance, alkali resistance, solvent resistance, recoating property, high temperature resistance and electrical conductivity.
    Type: Application
    Filed: June 27, 2011
    Publication date: November 17, 2011
    Inventors: Frank Wan, Jimmy Zhang, Kevin Meagher