| 发明名称 |
SURFACE PROTECTIVE SHEET SUBSTRATE AND SURFACE PROTECTIVE SHEET |
| 摘要 |
Provided is a surface protective sheet substrate capable of bringing about weatherability with less weathering stabilizer. The surface protective sheet substrate provided by this invention comprises a polyolefin resin accounting for more than 50% by weight of the entire substrate. The substrate comprises an inorganic weathering stabilizer-containing layer which comprises an inorganic weathering stabilizer. The inorganic weathering stabilizer-containing layer has a thickness of 10 μm or larger, but smaller than 40 μm. The inorganic weathering stabilizer content accounts for 8% by weight or more of the inorganic weathering stabilizer-containing layer. The inorganic weathering stabilizer content per unit area of substrate is 2.0 g/m2 or greater. |
| 申请公布号 |
US2015217546(A1) |
申请公布日期 |
2015.08.06 |
| 申请号 |
US201514611558 |
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 |
B32B27/32;B32B27/08 |
主分类号 |
B32B27/32 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A surface protective sheet substrate, wherein
the substrate is a resin film comprising a polyolefin resin which accounts for more than 50% by weight of the entire substrate, the substrate comprises an inorganic weathering stabilizer-containing layer which comprises an inorganic weathering stabilizer, the inorganic weathering stabilizer-containing layer has a thickness of 10 μm or larger, but smaller than 40 μm, the inorganic weathering stabilizer content accounts for 8% by weight or more of the inorganic weathering stabilizer-containing layer, and the inorganic weathering stabilizer content per unit area of substrate is 2.0 g/m2 or greater. |
| 地址 |
Osaka JP |
