Patents by Inventor David W. Liou

David W. Liou 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).

  • Blends of polycarbonate and chlorinated polyethylene
    Patent number: 5525651
    Abstract: A blend of polycarbonate and chlorinated polyethylene which has a desirable balance of impact and ignition resistance properties.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 11, 1996
    Assignee: The Dow Chemical Company
    Inventors: Samuel A. Ogoe, David W. Liou, Oliver C. Ainsworth, James R. Bethea, David R. Flores, Stephen R. Ellebracht, John W. Muskopf, Craig L. Werling, Edwin J. Wilson, John W. Cocup, Joseph L. Allison
  • Blends of polycarbonate and chlorinated polyethylene
    Patent number: 5424341
    Abstract: A blend of polycarbonate and chlorinated polyethylene which has a desirable balance of impact and ignition resistance properties.
    Type: Grant
    Filed: October 20, 1993
    Date of Patent: June 13, 1995
    Assignee: The Dow Chemical Company
    Inventors: Samuel A. Ogoe, David W. Liou, Oliver C. Ainsworth, James R. Bethea, John W. Muskopf, Craig L. Werling, Edwin J. Wilson, John W. Cocup
  • Modified CPE for PVC impact modification
    Patent number: 5338803
    Abstract: Modified chlorinated polyethylene (CPE) for use as an impact modifier for polyvinyl chloride, comprising a thermoplastic grafted CPE prepared by polymerizing compatible monomers or comonomers, e.g. methyl methacrylate/styrene, methylmethacrylate or vinyl acetate, onto the CPE backbone via an aqueous slurry suspension polymerization and the process of producing the cited modified chlorinated polyethylene.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: August 16, 1994
    Assignee: The Dow Chemical Company
    Inventors: Yun C. Sun, David W. Liou