Patents Assigned to Aicello Chemical Company Limited
  • Water soluble packaging film
    Patent number: 5135982
    Abstract: A water soluble packaging film containing a predominant amount of partially acetalized product of polyvinyl alcohol by benzaldehyde derivatives.
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: August 4, 1992
    Assignee: Aicello Chemical Company Limited
    Inventors: Takayuki Matsumoto, Tsutomu Suzuki, Yoshiyuki Tsukamoto, Hitoshi Nakamura