Patents Examined by Thurman Kennis Page
  • Radiation-sterilized shaped articles of olefin polymers
    Patent number: 3940325
    Abstract: Radiation-sterilized shaped articles of olefin polymers containing 0.01 - 0.5% by weight based on the weight of the olefin polymers, of octadecyl 3,5-di-t-butyl-4-hydroxyhydrocinnamate or/and tetrakis [(m methane.The radiation-sterilized shaped articles are colorless and still have practically acceptable physical properties (melt flow rate and percentage occurrence of cracking), in spite of the fact that they have been irradiated with high energy radiation.
    Type: Grant
    Filed: August 24, 1973
    Date of Patent: February 24, 1976
    Assignee: Chisso Corporation
    Inventor: Seiji Hirao