Patents by Inventor Mutsumi Nakayama

Mutsumi Nakayama 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).

  • Process and apparatus for producing chlorinated rubber
    Patent number: 6323261
    Abstract: The present invention provides a method of producing a chlorinated rubber wherein an acidic or highly acidic chlorinated rubber cake obtained after chlorinating a rubber latex or an aqueous dispersion is subjected to fluidized drying together with a drying medium to obtain a preliminary dried powder, and the preliminary dried powder is subjected to fluidized drying again. According to the present invention, a high quality chlorinated rubber can be obtained efficiently with easy handling from an acidic or highly acidic chlorinated rubber cake obtained after chlorinating a rubber latex or an aqueous dispersion.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: November 27, 2001
    Assignee: Asahi Denka Kogyo K.K.
    Inventors: Naoyasu Kurita, Jun-ichi Hisano, Masanori Konishi, Tadashi Janado, Mutsumi Nakayama, Shinji Nakano, Toshiyuki Yoshida
  • PROCESS AND APPARATUS FOR PRODUCING CHLORINATED RUBBER
    Publication number: 20010031800
    Abstract: The present invention provides a method of producing a chlorinated rubber wherein an acidic or highly acidic chlorinated rubber cake obtained after chlorinating a rubber latex or an aqueous dispersion is subjected to fluidized drying together with a drying medium to obtain a preliminary dried powder, and the preliminary dried powder is subjected to fluidized drying again. According to the present invention, a high quality chlorinated rubber can be obtained efficiently with easy handling from an acidic or highly acidic chlorinated rubber cake obtained after chlorinating a rubber latex or an aqueous dispersion.
    Type: Application
    Filed: April 29, 1999
    Publication date: October 18, 2001
    Inventors: NAOYASU KURITA, JUN-ICHI HISANO, MASANORI KONISHI, TADASHI JANADO, MUTSUMI NAKAYAMA, SHINJI NAKANO, TOSHIYUKI YOSHIDA