基本信息:
- 专利标题： ARTIFICIAL LEATHER
- 申请号：EP23190590.2 申请日：2023-08-09
- 公开(公告)号：EP4321679A3 公开(公告)日：2024-06-19
- 发明人： Kawai, Kazuya , Hatanaka, Aki , Sakata, Keiichiro , Yamaguchi, Hidehiro
- 申请人： Asahi Kasei Kabushiki Kaisha
- 申请人地址： JP Tokyo 1000006 1-1-2 Yurakucho Chiyoda-ku
- 专利权人： Asahi Kasei Kabushiki Kaisha
- 当前专利权人： Asahi Kasei Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo 1000006 1-1-2 Yurakucho Chiyoda-ku
- 代理机构： dompatent von Kreisler Selting Werner - Partnerschaft von Patent- und Rechtsanwälten mbB
- 优先权： JP 22129024 2022.08.12
- 主分类号： D06P3/14
- IPC分类号： D06P3/14
摘要：
Provided is artificial leather which does not use organic solvents during the production process and thus has a low environmental impact, and which has no formation of wrinkles during three-dimensional molding. The artificial leather comprises a nonwoven fabric made of ultrafine fibers having a mean single fiber diameter of 0.3 µm to 7 µm, and water-dispersible polyurethane, wherein when the free induction decay (FID) signal in pulse NMR (solid echo method, proton observation, measuring temperature: 50°C) is fitted to two components: the S component (Gaussian component) and L component (Lorentz component), the spin-spin relaxation time Tl of the L component is 500 µsec to 800 µsec and the L component fraction Cl is 55% to 75%.
公开/授权文献:
- EP4321679A2 ARTIFICIAL LEATHER 公开/授权日：2024-02-14
IPC结构图谱:
| D | 纺织；造纸 |
| --D06 | 织物等的处理；洗涤；其他类不包括的柔性材料 |
| ----D06P | 纺织品的染色或印花；皮革、毛皮或各种形状的固体高分子物质的染色 |
| ------D06P3/00 | 按被处理的材料分类的，染色或印花纺织品和染皮革、毛皮或任何形状的固体高分子物质的专门方法 |
| --------D06P3/02 | .含碱性氮的材料 |
| ----------D06P3/04 | ..含酰胺基 |
| ------------D06P3/14 | ...羊毛 |