Patents Assigned to Teijin Seiki Company, Ltd.
  • Photocurable resin composition, method of producing photo-cured shaped object, vacuum casting mold, vacuum casting method and novel urethane acrylate
    Patent number: 6017973
    Abstract: A photocurable resin composition comprising (A) at least one urethane di- or triacrylate, which is a novel compound, (B) a radical polymeriable compound, and (C) a photopolymerization initiator, the weight ratio of the urethane acrylate (A) to the radical polymerizable compound (B) being 65/35 to 25/75; a method of producing a photo-cured object by photo-curing the above composition; a vacuum casting mold obtained by the above method; and a vacuum casting method using the above mold.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: January 25, 2000
    Assignee: Teijin Seiki Company, Ltd.
    Inventors: Yorikazu Tamura, Tsuneo Hagiwara, Yasushi Ishihama, Minoru Kayanoki, Takakuni Ueno