Patents by Inventor Owen Clifford Hallerud

Owen Clifford Hallerud 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).

  • Semi-continuous bimodal emulsion polymerization
    Patent number: 6906151
    Abstract: An aqueous semi-continuous emulsion polymerization process for producing bimodal polymer particles in volumes large than a single batch size is provided. A bimodal polymer composition prepared by the process of carrying out an aqueous semi-continuous emulsion polymerization is also provided.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: June 14, 2005
    Assignee: Rohm and Haas Company
    Inventors: Thomas George Throne, Owen Clifford Hallerud
  • Process for preparing emulsion polymers
    Publication number: 20040143053
    Abstract: A method of preparing an emulsion polymer having a low residual monomer content, wherein the method includes the simultaneous addition of an oxidizing agent and a reducing agent to different locations on the process side of a heat exchanger is provided.
    Type: Application
    Filed: January 7, 2004
    Publication date: July 22, 2004
    Inventors: Richard Shu-Hua Wu, David Arthur Pierce, Owen Clifford Hallerud
  • Semi-continuous bimodal emulsion polymerization
    Publication number: 20040143074
    Abstract: An aqueous semi-continuous emulsion polymerization process for producing bimodal polymer particles in volumes large than a single batch size is provided. A bimodal polymer composition prepared by the process of carrying out an aqueous semi-continuous emulsion polymerization is also provided.
    Type: Application
    Filed: December 17, 2003
    Publication date: July 22, 2004
    Inventors: Thomas George Throne, Owen Clifford Hallerud
  • Semi-continuous bimodal emulsion polymerization
    Patent number: 6693151
    Abstract: An aqueous semi-continuous emulsion polymerization process for producing bimodal polymer particles in volumes large than a single batch size is provided. A bimodal polymer composition prepared by the process of carrying out an aqueous semi-continuous emulsion polymerization is also provided.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: February 17, 2004
    Assignee: Rohm and Haas Company
    Inventors: Thomas George Throne, Owen Clifford Hallerud
  • Semi-continuous bimodal emulsion polymerization
    Publication number: 20020193548
    Abstract: An aqueous semi-continuous emulsion polymerization process for producing bimodal polymer particles in volumes large than a single batch size is provided. A bimodal polymer composition prepared by the process of carrying out an aqueous semi-continuous emulsion polymerization is also provided.
    Type: Application
    Filed: June 10, 2002
    Publication date: December 19, 2002
    Inventors: Thomas George Throne, Owen Clifford Hallerud