Patents Examined by Bethany M Miller
  • Ethylene-vinyl alcohol copolymer composition, melt-forming material, and multilayer structure
    Patent number: 11161964
    Abstract: An ethylene-vinyl alcohol copolymer composition is provided, which is resistant to coloration. The ethylene-vinyl alcohol copolymer composition contains: (A) an ethylene-vinyl alcohol copolymer; (B) sorbic acid; and (C) a sorbic acid ester; wherein the sorbic acid ester (C) is present in an amount of 0.00001 to 10 ppm based on the weight of the ethylene-vinyl alcohol copolymer composition; wherein sorbic acid (B) and the sorbic acid ester (C) are present in a weight ratio (B)/(C) of 100 to 100,000.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: November 2, 2021
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Shintaro Usui, Minako Ikeshita