Patents Examined by Mellissa Bonner
  • Water and oil repellent composition
    Patent number: 5133802
    Abstract: A water and oil repellent composition containing, as an essential component, non-film-forming fine solid particles having a low surface tension and having a fluorine content of at least 30% by weight.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: July 28, 1992
    Assignees: Asahi Glass Company Ltd., Osaka Gas Company Limited
    Inventors: Takashige Maekawa, Masaru Nakamura, Masashi Matsuo, Mikio Sasabe, Hiroyuki Fujimoto