| 发明名称 | Artificial polypeptide fiber and method for producing the same | ||
| 摘要 | An artificial polypeptide fiber of the present invention is an artificial fiber containing a polypeptide as a main component, and has a stress of 350 MPa or more and a toughness of 138 MJ/m3 or more. A method for producing an artificial polypeptide fiber of the present invention is a method for producing the artificial polypeptide fiber obtained by spinning a spinning solution (6) containing a polypeptide derived from natural spider silk proteins and performing drawing of at least two stages. The drawing of at least two stages includes a first-stage drawing (3) in wet heat and a second-stage drawing (4) in dry heat. Thereby, the present invention provides high-toughness artificial polypeptide fibers having favorable stress and rupture elongation, and a method for producing the same. | ||
| 申请公布号 | US9617315(B2) | 申请公布日期 | 2017.04.11 |
| 申请号 | US201214114636 | 申请日期 | 2012.05.30 |
| 申请人 | SPIBER INC. | 发明人 | Sekiyama Kazuhide;Sekiyama Kaori;Ishikawa Mizuki;Sato Ryota;Murata Shinya |
| 分类号 | C07K14/435;D01F4/02;D01F6/68;D01D5/06;D01D5/16 | 主分类号 | C07K14/435 |
| 代理机构 | Hamre, Schumann, Mueller & Larson, P.C. | 代理人 | Hamre, Schumann, Mueller & Larson, P.C. |
| 主权项 | 1. A method for producing an artificial polypeptide fiber that is obtained by spinning a spinning solution containing a polypeptide derived from natural spider silk proteins and performing drawing of at least two stages, wherein the drawing of at least two stages includes a first-stage drawing in wet heat and a second-stage drawing in dry heat, and an ambient temperature at the time of the second-stage drawing is in a range from 170 to 270° C. | ||
| 地址 | Yamagata JP | ||