Patents by Inventor Akio Tanna

Akio Tanna 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).

  • Modified propylene polymer, composition containing the same and use thereof
    Publication number: 20050075441
    Abstract: This invention provides a graft modified polypropylene polymer which does not contain halogens, is excellent in certain properties such as solubility and can add good adhesiveness and coating ability to crystalline propylene polymer base materials, and a composition containing the same; and in particular, it provides a propylene polymer which contains a propylene polymer main chain having a stereo-block structure containing an isotactic block and a side chain containing a carboxylic acid group, an acid anhydride group or a carboxylic acid ester group, wherein when it is dissolved in toluene to a concentration of 10% by weight at 25° C., the insoluble matter is 1% by weight or less based on the total polymer, and a composition containing the same.
    Type: Application
    Filed: November 12, 2004
    Publication date: April 7, 2005
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masato Onoe, Teruaki Ashihara, Kazuyuki Hata, Fumihiko Shimizu, Naomasa Sato, Akio Tanna
  • Propylene-based polymer
    Publication number: 20040162403
    Abstract: An object of the present invention is to provide a novel propylene-based polymer capable of providing a propylene-based polymer with a good adhesion and coatability.
    Type: Application
    Filed: August 29, 2003
    Publication date: August 19, 2004
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Fumihiko Shimizu, Naomasa Sato, Akira Kuwahara, Fumiyoshi Yamada, Akio Tanna
  • Modified propylene polymer, composition containing the same and use thereof
    Publication number: 20030153686
    Abstract: This invention provides a graft modified polypropylene polymer which does not contain halogens, is excellent in certain properties such as solubility and can add good adhesiveness and coating ability to crystalline propylene polymer base materials, and a composition containing the same; and in particular, it provides a propylene polymer which contains a propylene polymer main chain having a stereo-block structure containing an isotactic block and a side chain containing a carboxylic acid group, an acid anhydride group or a carboxylic acid ester group, wherein when it is dissolved in toluene to a concentration of 10% by weight at 25° C., the insoluble matter is 1% by weight or less based on the total polymer, and a composition containing the same.
    Type: Application
    Filed: October 31, 2002
    Publication date: August 14, 2003
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masato Onoe, Teruaki Ashihara, Kazuyuki Hata, Fumihiko Shimizu, Naomasa Sato, Akio Tanna