Patents Examined by Alexander Glyka
  • Agent for preventing vinyl chloride polymer build-up
    Patent number: 4980079
    Abstract: An agent for preventing vinyl chloride polymer build-up, which contains as the effective ingredient a reaction product of ammonium salt or a metal salt of N-nitrosophenylhydroxylamine with an aldehyde.
    Type: Grant
    Filed: April 12, 1989
    Date of Patent: December 25, 1990
    Assignee: Sun Arrow Chemical Co., Ltd.
    Inventors: Tamio Yamato, Kenji Asada, Yutaka Miyauchi, Kenji Hotehama, Teruaki Inagi