Patents by Inventor Harrell Tweedy

Harrell Tweedy 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).

  • RADIATION CURABLE HYBRID COMPOSITION AND PROCESS
    Publication number: 20100075062
    Abstract: There is described a process for preparing a hybrid organic inorganic nano-composite used to prepare high (nD?1.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 25, 2010
    Applicant: CYTEC SURFACE SPECIALITIES S.A.
    Inventors: Zhikai (Jeffrey) Wang, Harrell Tweedy
  • Adhesives
    Patent number: 7465767
    Abstract: There are disclosed star shaped thermoplastic elastomers made of acrylic block copolymers obtained by transition metal catalysed radical polymerisation. The elastomers comprise core arms obtained from monomers or mixture of monomers, whose Tg is from about ?65° C. to about ?20° C., and of shell arms obtained from monomers or mixture of monomers, whose Tg is from about 70° C. to about 160° C. The core copolymer has a polydispersity of 2 or higher and the final copolymer has a polydispersity of from 3 to 10.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: December 16, 2008
    Assignee: Cytec Surface Specialties, S.A.
    Inventors: François Simal, Harrell Tweedy, Steven Van Es, Patrice Roose
  • Adhesives
    Publication number: 20060074210
    Abstract: There are disclosed star shaped thermoplastic elastomers made of acrylic block copolymers obtained by transition metal catalysed radical polymerisation. The elastomers comprise core arms obtained from monomers or mixture of monomers, whose Tg is from about ?65° C. to about ?20° C., and of shell arms obtained from monomers or mixture of monomers, whose Tg is from about 70° C. to about 160° C. The core copolymer has a polydispersity of 2 or higher and the final copolymer has a polydispersity of from 3 to 10.
    Type: Application
    Filed: December 19, 2003
    Publication date: April 6, 2006
    Applicant: SURFACE SPECIALTIES, S.A.
    Inventors: Francois Simal, Harrell Tweedy, Steven Van Es, Patrice Roose