Patents Assigned to Kyodo Giken Chemical Co., Ltd
  • Patent number: 9765242
    Abstract: An adhesive film with excellent cuttability with respect to both a base layer and a surface layer or layers laminated thereon is provided, without significant formation of adhesive burrs in various shearing processes. The adhesive film includes a support member and an adhesive layer laminated on at least one side of the support member. The adhesive layer has a laminate structure having a base layer made of a resin-based adhesive and laminated on the surface of the support member and a surface layer made of a resin-based adhesive and laminated on the base layer. The base layer is non-directional and has lengthwise and widthwise shearing strengths of 2 g to 2000 g [200 mm/min, 25 mm] in the thickness range of 2 ?m to 60 ?m. The base layer has a shearing strength of 1.5 to 200 times the shearing strength of the surface layer.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: September 19, 2017
    Assignee: Kyodo Giken Chemical Co., Ltd
    Inventor: Shokichi Hamano
  • Publication number: 20090286073
    Abstract: To provide a hardenable pressure-sensitive adhesive film which is excellent in cuttability and permits excellent shearing such as punching or perforating without adhesive spew. [Means for Solving Problems] A hardenable pressure-sensitive adhesive film (1), characterized by being produced by laminating an isotropic support sheet (11) made of a resin which exhibits lengthwise and widthwise shear strengths of 2 to 2000 g [200 mm/min 25 mm width], preferably 5 to 1000 g, still preferably 10 to 500 g in the thickness range of 2 to 60 [mu]m with a face sheet (12) made of a resin-base pressure-sensitive adhesive. In the film (1), the face sheet(s) (12) may be present on either or both sides of the support sheet (11).
    Type: Application
    Filed: December 5, 2006
    Publication date: November 19, 2009
    Applicant: Kyodo Giken Chemical Co., Ltd
    Inventor: Shokichi Hamano