| 发明名称 | Medical pressure-sensitive adhesive sheet and method for producing the same | ||
| 摘要 | A medical pressure-sensitive adhesive sheet includes a urethane substrate, an interlayer adhesive layer, an olefin nonwoven fabric, and a pressure-sensitive adhesive layer for pasting in order and has a moisture permeability amount of 2000 g/(m2·24 hours) or more, or the like. In the medical pressure-sensitive adhesive sheet, a thickness of the urethane substrate is a value within the range of from 1 to 10 μm, a thickness of the interlayer adhesive layer is a value within the range of from 5 to 30 μm, the olefin nonwoven fabric is constituted with a polypropylene-based thermoplastic elastomer and has a maximum point elongation percentage of a value of 200% or more in the longitudinal direction and the transverse direction, respectively, and a thickness of the pressure-sensitive adhesive layer for pasting is a value within the range of from 5 to 45 μm. | ||
| 申请公布号 | US9308291(B2) | 申请公布日期 | 2016.04.12 |
| 申请号 | US201314403244 | 申请日期 | 2013.10.29 |
| 申请人 | PIAC CO., LTD. | 发明人 | Oka Keiji;Fukushima Junji |
| 分类号 | A61L15/58;B32B37/15;A61L15/42;A61F13/02;A61L15/24;C08L35/04;B32B27/00;B32B37/12;B32B5/02;B32B7/06;B32B7/12;B32B27/12;B32B27/40;B32B38/00;C09J133/14;C08L23/10 | 主分类号 | A61L15/58 |
| 代理机构 | Fitch, Even, Tabin & Flannery LLP | 代理人 | Fitch, Even, Tabin & Flannery LLP |
| 主权项 | 1. A medical pressure-sensitive adhesive sheet comprising a urethane substrate, an interlayer adhesive layer, an olefin nonwoven fabric, and a pressure-sensitive adhesive layer for pasting in order and having a moisture permeability amount of 2000 g/(m2·24 hours) or more, wherein a thickness of the urethane substrate is a value within the range of from 1 to 10 μm, the interlayer adhesive layer is a urethane-based adhesive layer, a thickness of the interlayer adhesive layer is a value within the range of from 5 to 30 μm, the olefin nonwoven fabric is constituted with a polypropylene-based thermoplastic elastomer and has a maximum point elongation percentage of a value of 200% or more in a longitudinal direction and a transverse direction, respectively, a content of the polypropylene-based thermoplastic elastomer contained in the olefin nonwoven fabric is a value of above 95% by weight with respect to a total amount of raw materials of the olefin nonwoven fabric, an MFR of the polypropylene-based thermoplastic elastomer contained in the olefin nonwoven fabric is a value within the range of from 1 to 48 g/10 minutes (temperature: 230° C.), and a thickness of the pressure-sensitive adhesive layer for pasting is a value within the range of from 5 to 45 μm. | ||
| 地址 | Shiga JP | ||