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:
Feb. 14, 2023
Filed:
Aug. 27, 2021
Toyoda Gosei Co., Ltd., Kiyosu, JP;
Tokyo Institute of Technology, Tokyo, JP;
Naoyuki Akahori, Kiyosu, JP;
Akishige Seo, Kiyosu, JP;
Naoki Iwase, Kiyosu, JP;
Toshikazu Takata, Tokyo, JP;
Toyokazu Tsutsuba, Tokyo, JP;
TOYODA GOSEI CO., LTD., Aichi-pref., JP;
TOKYO INSTITUTE OF TECHNOLOGY, Tokyo, JP;
Abstract
A crosslinked rubber composition contains ethylene-propylene-diene copolymer rubber crosslinked with a rotaxane compound having a cyclic molecule and an axial molecule penetrating through the cyclic molecule. In the crosslinked rubber composition, the ethylene-propylene-diene copolymer rubber contains vinylnorbornene, dicyclopentadiene, or tetrahydroindene as a diene component, and the rotaxane compound has a nitrile oxide group on the cyclic molecule and one end of the axial molecule, and the cyclic molecule is crown ether.