Patents by Inventor Jean Jiangun Zhao

Jean Jiangun Zhao 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).

  • Molded or extruded articles comprising polyhydroxyalkanoate copolymer and an environmentally degradable thermoplastic polymer
    Publication number: 20040225269
    Abstract: Environmentally degradable molded or extruded articles comprising a blend of polyhydroxyalkanoate copolymer and an environmentally degradable thermoplastic polymer or copolymer are disclosed. Such compositions provide annealing cycle times to form molded or extruded articles that are less than annealing cycle times to form a molded or extruded article lacking the environmentally degradable thermoplastic polymer or copolymer.
    Type: Application
    Filed: May 8, 2003
    Publication date: November 11, 2004
    Applicant: The Procter & Gamble Company
    Inventors: Jean Jiangun Zhao, Isao Noda, Gary Wayne Gilbertson, Drew Clifton McAvoy, Brian Francis Gray, David Harry Melik
  • Molded or extruded articles comprising polyhydroxyalkanoate copolymer compositions having short annealing cycle times
    Patent number: 6706942
    Abstract: Environmentally degradable molded or extruded articles comprising a polyhydroxyalkanoate C4C6 copolymer composition having short annealing cycle times are provided. Such short annealing cycle times are achieved by compositions having a percentage of C6 units of 2-8%. Desirable annealing cycle times are obtained for molded or extruded articles, particularly for tampon applicators.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: March 16, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Jean Jiangun Zhao, Isao Noda, Gary Wayne Gilbertson, Drew Clifton McAvoy, Brian Francis Gray, David Harry Melik