Patents Assigned to Japan Butyl Co., Ltd.
  • Peelable protective film
    Patent number: 4808484
    Abstract: A peelable protective film is disclosed, which is processed from a composition comprising 100 parts by weight of an ethylene/methyl methacrylate copolymer, from 0.01 to 0.1 part by weight of an inorganic filler, and from 0.01 to 1.0 part by weight of a slip agent. The protective film of the invention, when wrapped around articles having a tacky surface, exhibits good adhesion to the substrate and has a low peeling strength and, therefore, can be readily peeled away as required.
    Type: Grant
    Filed: August 26, 1987
    Date of Patent: February 28, 1989
    Assignees: Sumitomo Chemical Co., Ltd., Japan Butyl Co., Ltd.
    Inventors: Kunio Yamada, Kohzoh Miyazaki, Yoshitaka Oowatari, Yoshio Egami, Toshio Honma