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.:
Date of Patent:
Sep. 10, 2024
Filed:
Jul. 05, 2019
Applicants:
Bridgestone Corporation, Tokyo, JP;
Spiber Inc., Yamagata, JP;
Inventors:
Koji Sanefuji, Tokyo, JP;
Hideharu Seguchi, Tokyo, JP;
Toshiki Takizawa, Tokyo, JP;
Naoko Nisikita, Tokyo, JP;
Assignees:
BRIDGESTONE CORPORATION, Tokyo, JP;
Spiber Inc., Yamagata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 75/04 (2006.01); C08G 18/00 (2006.01); C08G 18/08 (2006.01); C08G 18/76 (2006.01); C08K 7/02 (2006.01); C08K 11/00 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
C08L 75/04 (2013.01); C08G 18/08 (2013.01); C08G 18/7621 (2013.01); C08G 18/7657 (2013.01); C08K 7/02 (2013.01); C08K 11/00 (2013.01); C08G 2101/00 (2013.01); C08G 2110/0008 (2021.01);
Abstract
Provided is a flexible polyurethane foam having high hardness required for weight reduction of members and having low stress relaxation. A flexible polyurethane foam comprises a structural protein fiber having a length of 0.1 mm to 5 mm.