Patents by Inventor Willy Manfroy

Willy Manfroy 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).

  • Ore grinding process including a grinding aid of an anionic polyelectrolyte
    Patent number: 4274599
    Abstract: A process for grinding coal or ores containing metal values comprising carrying out said grinding in a liquid medium and with a grinding aid comprising an anionic polyelectrolyte dispersible in the liquid medium and having a hydrocarbon backbone and a plurality of pendant anionic groups, said grinding aid being present in an amount effective to provide increased grinding efficiency.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: June 23, 1981
    Assignee: The Dow Chemical Company
    Inventors: Willy Manfroy, Richard R. Klimpel
  • Process for grinding coal or ores in a liquid medium
    Patent number: 4162044
    Abstract: A process for grinding coal or ores containing metal values comprising carrying out said grinding in a liquid medium and with a grinding aid comprising an anionic polyelectrolyte derived from polyacrylic acid and dispersible in the liquid medium, said grinding aid being present in an amount effective to provide increased grinding efficiency.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: July 24, 1979
    Assignee: The Dow Chemical Company
    Inventors: Willy Manfroy, Richard R. Klimpel
  • Ore grinding process
    Patent number: 4162045
    Abstract: A process for grinding coal or ores containing metal values comprising carrying out said grinding in a liquid medium and with a grinding aid system comprising an anionic polyelectrolyte derived from polyacrylic acid and certain inorganic metal salts, said system being dispersible in the liquid medium and being present in an amount effective to provide increased grinding efficiency.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: July 24, 1979
    Assignee: The Dow Chemical Company
    Inventors: Melvin F. Katzer, Richard R. Klimpel, Willy Manfroy
  • Ore grinding process containing copolymer grinding aids
    Patent number: 4136830
    Abstract: A process for grinding coal or ores containing metal values comprising carrying out said grinding in a liquid medium and with a grinding aid comprising copolymers or salts of copolymers of styrene with maleic anhydride, itaconic or citraconic acids dispersible in the liquid medium, said grinding aid being present in an amount effective to provide increased grinding efficiency.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: January 30, 1979
    Assignee: The Dow Chemical Company
    Inventors: Willy Manfroy, Richard R. Klimpel
  • Process for grinding coal or ores in a liquid medium
    Patent number: 4126276
    Abstract: A process for grinding coal or ores containing metal values comprising carrying out said grinding in a liquid medium and with a polyelectrolyte grinding aid comprising N-(sulfoalkyl)-derivatives of acrylamide and methacrylamide, said grinding aid being dispersible in the liquid medium, and being present in an amount effective to provide increased grinding efficiency.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: November 21, 1978
    Assignee: The Dow Chemical Company
    Inventors: Willy Manfroy, Richard R. Klimpel
  • Process for grinding coal or ores in a liquid medium
    Patent number: 4126278
    Abstract: A process for grinding coal or ores containing metal values comprising carrying out said grinding in a liquid medium and with a grinding aid comprising an anionic polyelectrolyte derived from sulfoethylmethacrylic acid and dispersible in the liquid medium, said grinding aid being present in an amount effective to provide increased grinding efficiency.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: November 21, 1978
    Assignee: The Dow Chemical Company
    Inventors: Willy Manfroy, Richard R. Klimpel
  • Process for grinding coal or ores in a liquid medium
    Patent number: 4126277
    Abstract: A process for grinding coal or ores containing metal values comprising carrying out said grinding in a liquid medium and with a grinding aid comprising sulfonated polystyrene or sulfonated polyvinyl toluene or an anionic polyelectrolyte derived therefrom and dispersible in the liquid medium, said grinding aid being present in an amount effective to provide increased grinding efficiency.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: November 21, 1978
    Assignee: The Dow Chemical Company
    Inventors: Willy Manfroy, Richard R. Klimpel