Patents Assigned to Keueha Kagaku Kogyo K.K.
  • Extrusion laminated product
    Patent number: 4444826
    Abstract: An extrusion laminated product is described comprising at least three layers, wherein at least one of the surface layers comprises polyvinylidene fluoride, and an adhesive layer which is provided between the surface layer and other thermoplastic resin layers comprises a polymer comprising at least one of methyl methacrylate and ethyl methacrylate as a major component or a composition containing said polymer as a main component and from 0.3 to 30 phr of an ultraviolet absorber.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: April 24, 1984
    Assignee: Keueha Kagaku Kogyo K.K.
    Inventors: Tohru Sasaki, Hiroyuki Endoh, Takeshi Nakadai