Patents Assigned to Plinst Giken Co., Ltd.
  • Method of producing a porous product
    Patent number: 6391233
    Abstract: A novel method of producing a porous product is provided, including the steps of: preparing a molded product by subjecting a molding material comprising a polymer component and a pore-forming agent dispersed in the polymer component, the pore-forming agent assuming a solid state at a room temperature, to molding at a temperature which causes the pore-forming agent to melt; and soaking the molded product with a solvent which dissolves the pore-forming agent but fails to dissolve the polymer component, to form pores.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: May 21, 2002
    Assignees: Asahi Rubber Inc., Plinst Giken Co., Ltd.
    Inventors: Kunihiko Otani, Mizuho Maeda, Hideo Takamatsu, Kazuhisa Takagi, Masashi Nemoto