Title:
樹脂シート
Document Type and Number:
Japanese Patent JP6782585
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a resin sheet which is constituted to be easily produced and has sufficient surface smoothness, and composed of a thermoplastic resin and has a foam layer and a transparent resin layer.SOLUTION: A resin sheet 100 is composed of a thermoplastic resin, is formed by laminating a foam layer 10 including air bubbles and a transparent resin layer 20 composed of a thermoplastic resin by coextrusion, and has a total thickness of 500 μm or more and 10,000 μm or less. The transparent resin layer is positioned at least one surface side of the resin sheet, has a thickness of 50 μm or more, an average air bubble diameter of the air bubbles of the foam layer in a vertical cross section perpendicular to the extrusion direction of the resin sheet is 500 μm or less, an arithmetic average roughness (Ra) of the surface on the side of the transparent resin layer 20 of the resin sheet 100 measured according to JIS B 0601:2001 is 0.7 μm or less, and mirror surface glossiness at 20-degree on the side of the transparent resin layer 20 of the resin sheet 100 measured according to JIS Z8741:1997 is 50% or more.SELECTED DRAWING: Figure 1
Inventors:
Yasuyuki Matsushima
Mitsuhiro Akiyama
Ryosuke Itagaki
Takane Hanne
Mitsuhiro Akiyama
Ryosuke Itagaki
Takane Hanne
Application Number:
JP2016168254A
Publication Date:
November 11, 2020
Filing Date:
August 30, 2016
Export Citation:
Assignee:
JSP Corporation
International Classes:
B32B5/18; B32B27/00
Domestic Patent References:
| JP2009034934A | ||||
| JP2013129827A | ||||
| JP2013533839A | ||||
| JP2009515745A | ||||
| JP2002363504A | ||||
| JP2013238867A | ||||
| JP2002166510A |
Attorney, Agent or Firm:
Isamu Hosoi
Tasuke Sato
Yukiko Kurita
Tasuke Sato
Yukiko Kurita