Patents by Inventor James J. Usilton

James J. Usilton 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).

  • Polyester compositions of low residual aldehyde content
    Patent number: 6916881
    Abstract: A mixture of a polyester, such as poly(ethylene terephthalate) PET, and a second polymer which is polyacrylamide, polymethacrylamide or copolymer of acrylamide or methacrylamide when extrusion compounded exhibits a lower residual acetaldehyde content than does PET alone when similarly treated. The invention pertains to any polyester used in the manufacture of bottles or containers which in turn are used to store consumer materials, especially food, beverages and most especially water.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: July 12, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Stephen Mark Andrews, James J. Usilton
  • Polyester compositions of low residual aldehyde content
    Publication number: 20030149177
    Abstract: A mixture of a polyester, such as poly(ethylene terephthalate) PET, and a second polymer which is polyacrylamide, polymethacrylamide or copolymer of acrylamide or methacrylamide when extrusion compounded exhibits a lower residual acetaldehyde content than does PET alone when similarly treated. The invention pertains to any polyester used in the manufacture of bottles or containers which in turn are used to store consumer materials, especially food, beverages and most especially water.
    Type: Application
    Filed: January 13, 2003
    Publication date: August 7, 2003
    Inventors: Stephen Mark Andrews, James J. Usilton