Search Patents
  • Thermoplastic polymer composition comprising trans 1,4-polyisoprene
    Patent number: 4966952
    Abstract: A novel process for providing a thermoplastic polymer having novel thermal characteristics including the critical step of masticating the polymer, either continuously or discontinuously, until the melt index of the polymer is substantially increased.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: October 30, 1990
    Assignee: The Hygenic Corporation
    Inventor: John Riaza
  • Thermoplastic endodontic composition having improved melt flow index
    Patent number: 4882407
    Abstract: A novel process for providing a thermoplastic polymer having unique thermal characteristics including the step of cooling the polymer during extended mastication until the melt index of the polymer is substantially increased.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: November 21, 1989
    Assignee: The Hygenic Corporation
    Inventor: John Riazi