公开(公告)号：US20220251739A1

公开(公告)日：2022-08-11

申请号：US17622269

申请日：2020-06-26

Applicant: Spiber Inc. ,  Yuima Nakazato Co., Ltd.

Inventor： Yuima Nakazato ,  Atsushi Ikeda

IPC: D03D3/00 ,  C08L89/00 ,  D04B1/22 ,  D06M14/24

Abstract: An object of the present invention is to provide a fabric capable of easily and inexpensively forming a desired three-dimensional shape. The fabric according to the present invention contains an artificial protein fiber that contains a protein, in which the fabric has a surface including: a portion A that shrinks at a predetermined shrinkage rate when being brought into contact with water; and a portion B that has a shrinkage rate lower than that of the portion A when being brought into contact with water.

公开(公告)号：US20220324923A1

公开(公告)日：2022-10-13

申请号：US17764669

申请日：2020-09-28

Applicant: Spiber Inc.

Inventor： Kentaro Takahashi ,  Atsushi Ikeda ,  Hideki Kagata ,  Yunosuke Abe ,  Kazuki Sakata

IPC: C07K14/435 ,  D01F4/02

Abstract: An object of the present invention is to provide a method for advantageously producing a protein molded article which can solve a problem caused by esterification of a hydroxyl group contained in a protein while maintaining a sufficient strength. A method for producing a protein molded article according to the present invention includes a step of bringing a raw material molded article containing a protein in which a hydroxyl group is esterified into contact with an acidic or basic medium in a state of applying a tensile force, thus hydrolyzing an ester group.