Patents by Inventor Mei TAKATSUKA

Mei TAKATSUKA 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).

  • Multilayer structure, and standup pouch including the multilayer structure
    Patent number: 11738543
    Abstract: A multilayer structure includes a protective layer, an ethylene-vinyl alcohol copolymer layer, a heat seal resin layer, and an intermediate layer provided between the ethylene-vinyl alcohol copolymer layer and the heat seal resin layer and containing a polypropylene resin, wherein the intermediate layer further contains a hydrocarbon resin having a number average molecular weight of 100 to 3,000, and a softening point of not less than 60° C. and less than 170° C. The multilayer structure satisfies requirements for a lower water vapor permeability and a sufficient heat seal strength, and provides a standup pouch having a smaller gas barrier property change rate after retort treatment.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: August 29, 2023
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Kohei Oura, Shinji Nakanishi, Mei Takatsuka, Yoshitaka Matsumura
  • MULTILAYER STRUCTURE, AND STANDUP POUCH INCLUDING THE MULTILAYER STRUCTURE
    Publication number: 20210402747
    Abstract: A multilayer structure includes a protective layer, an ethylene-vinyl alcohol copolymer layer, a heat seal resin layer, and an intermediate layer provided between the ethylene-vinyl alcohol copolymer layer and the heat seal resin layer and containing a polypropylene resin, wherein the intermediate layer further contains a hydrocarbon resin having a number average molecular weight of 100 to 3,000, and a softening point of not less than 60° C. and less than 170° C. The multilayer structure satisfies requirements for a lower water vapor permeability and a sufficient heat seal strength, and provides a standup pouch having a smaller gas barrier property change rate after retort treatment.
    Type: Application
    Filed: September 8, 2021
    Publication date: December 30, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kohei OURA, Shinji NAKANISHI, Mei TAKATSUKA, Yoshitaka MATSUMURA