| 发明名称 |
SURFACE PROTECTIVE SHEET SUBSTRATE AND SURFACE PROTECTIVE SHEET |
| 摘要 |
Provided is a surface protective sheet substrate capable of forming a surface protective sheet endowed with both curling inhibition and adhesion mark inhibition. The surface protective sheet substrate provided by this invention comprises a polyolefin resin which accounts for more than 50% by weight of the entire substrate. The substrate comprises a layer X constituting a first surface of the substrate and a layer Y constituting the second surface of the substrate. The layer X is constituted with a resin composition having a tensile elastic modulus (EX) of 400 MPa or greater, but 750 MPa or less. The layer Y is constituted with a resin composition having a tensile elastic modulus (EY) of 400 MPa or greater, but 750 MPa or less. The layer X has a thickness tX and the layer Y has a thickness tY, satisfying 0.5≦tX·EX·tY·EY≦1.5. |
| 申请公布号 |
US2015218424(A1) |
申请公布日期 |
2015.08.06 |
| 申请号 |
US201514611502 |
申请日期 |
2015.02.02 |
| 申请人 |
NITTO DENKO CORPORATION |
发明人 |
IGARASHI Takeshi;YAMAMOTO Yasunori;WAKAYAMA Nao |
| 分类号 |
C09J7/02;B32B27/08;B32B27/32 |
主分类号 |
C09J7/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A surface protective sheet substrate, wherein
the substrate comprises a polyolefin resin which accounts for more than 50% by weight of the entire substrate, the substrate comprises a layer X that is a resin layer constituting a first surface of the substrate and a layer Y that is a resin layer constituting the second surface of the substrate, the layer X is constituted with a resin composition having a tensile elastic modulus (EX (MPa)) of 400 MPa or greater, but 750 MPa or less, the layer Y is constituted with a resin composition having a tensile elastic modulus (EY (MPa)) of 400 MPa or greater, but 750 MPa or less, and when the layer X has a thickness tX (μm) and the layer Y has a thickness tY (μm), the substrate satisfies the next inequality:
0.5≦tX·EX/tY·EY≦1.5 |
| 地址 |
Osaka JP |
