Loading patent…
AssigneeFP Corporation
InventorsYoshihiro Nishie, Shingo Ueno, Norihisa Fujii, Tetsuya Minami, Tetsuya Hayashi, Ryota Tanaka, Yoshihisa Saito
Estimating the term…
It is possible to provide a laminated sheet that is applicable to large molded articles, exhibits excellent rigidity, particularly excellent homogeneity of in-plane rigidity when formed into a large area, and has minimal variation in mechanical properties. The laminated sheet of the present invention has a structure in which layer a, comprising a biaxially oriented polypropylene film, and layer b, comprising an olefin-based resin with a melting point of 110 to 160° C., are alternately laminated. When one side direction of the laminated sheet is defined as an x-direction and a direction perpendicular thereto as a y-direction, a tensile modulus of elasticity in the x-direction and a tensile modulus of elasticity in the y-direction at three positions—namely, a center position in the y-direction, and two positions located 200 mm from this center position in the y-direction—are all within a range of 2000 to 5000 MPa.
A laminated sheet having a structure in which layer a, comprising a biaxially oriented polypropylene film, and layer b, comprising an olefin-based resin with a melting point of 110 to 160° C., are alternately laminated,
A method for producing a laminated sheet having a structure in which layer a, comprising a biaxially oriented polypropylene film, and layer b, comprising an olefin-based resin with a melting point of 110 to 160° C., are alternately laminated, the method comprising:
A method for producing a laminated sheet having a structure in which layer a, comprising a biaxially oriented polypropylene film, and layer b, comprising an olefin-based resin with a melting point of 110 to 160° C., are alternately laminated, the method comprising:
Dependencies are inferred from the claim text.