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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10065997 B1

PDFFull Text
Date of Patent:
Sep. 04, 2018

Filed:

Apr. 18, 2014

Polypeptide porous body and method for producing same

Applicant:

Spiber Inc., Tsuruoka-shi, Yamagata, JP;

Inventors:

Toshiaki Osawa, Tsuruoka, JP;

Keisuke Morita, Tsuruoka, JP;

Assignee:

SPIBER INC., Yamagata, JP;

Attorney:

Hamre, Schumann, Mueller & Larson, P.C.

Primary Examiner:

Suzanne Marie Noakes

Int. Cl.
CPC ...
C07K 14/43 (2006.01); A61K 8/64 (2006.01); A61K 47/42 (2017.01); C08J 9/28 (2006.01); C08L 89/00 (2006.01); A61K 8/42 (2006.01); A61K 8/46 (2006.01); A61Q 19/00 (2006.01); B01J 20/24 (2006.01); C11B 9/00 (2006.01); A61K 9/19 (2006.01); C07K 14/435 (2006.01); A61K 8/02 (2006.01); A61K 8/98 (2006.01);
U.S. Cl.
CPC ...
C07K 14/43518 (2013.01); A61K 8/0279 (2013.01); A61K 8/42 (2013.01); A61K 8/46 (2013.01); A61K 8/64 (2013.01); A61K 8/987 (2013.01); A61K 47/42 (2013.01); A61Q 19/00 (2013.01); B01J 20/24 (2013.01); C08J 9/28 (2013.01); C08L 89/00 (2013.01); C11B 9/00 (2013.01); A61K 9/19 (2013.01); A61K 2800/10 (2013.01); A61K 2800/56 (2013.01); A61K 2800/84 (2013.01); C08J 2201/0484 (2013.01); C08J 2201/0544 (2013.01); C08J 2205/022 (2013.01); C08J 2205/028 (2013.01); C08J 2389/00 (2013.01);
Abstract

A polypeptide porous body of the present invention is a porous body of a polypeptide derived from spider silk proteins. The polypeptide includes a water-insoluble polypeptide. The polypeptide porous body has an apparent density of 0.1 g/cmor less. A method for producing the polypeptide porous body includes: a solution production step in which the polypeptide is dissolved in at least one solvent selected from DMSO, DMF, and these with an inorganic salt, so as to obtain a solution of the polypeptide; a step in which the solution produced in the solution production step is substituted with a water-soluble solvent so as to obtain a polypeptide gel; and a step in which the polypeptide gel is dried. Thereby, the present invention provides a polypeptide porous body having excellent water absorbability and a polypeptide porous body suitable for application to a living body, and a method for producing the same.

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