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:
Jan. 19, 2021
Filed:
Mar. 22, 2019
Toyoda Gosei Co., Ltd., Kiyosu, JP;
Osaka Gas Co., Ltd., Osaka, JP;
Yuta Arakawa, Kiyosu, JP;
Yasuhiro Yamaguchi, Kiyosu, JP;
Hidekazu Kurimoto, Kiyosu, JP;
Masahiro Yamada, Osaka, JP;
Hiroki Sakamoto, Osaka, JP;
TOYODA GOSEI CO., LTD., Aichi-pref., JP;
OSAKA GAS CO., LTD., Osaka, JP;
Abstract
A rubber composition contains: at least one rubber component selected from the group consisting of an ethylene propylene diene rubber, a chloroprene rubber, a nitrile rubber, and an acrylic rubber; 1.5 to 30 parts by mass of a fluorene-modified cellulose nanofiber per 100 parts by mass of the rubber component; and 30 to 120 parts by mass of a carbon-based filler per 100 parts by mass of the rubber component. A method of producing a rubber composition comprises: kneading a dispersion of a fluorene-modified cellulose nanofiber in a process oil and a rubber component to prepare a kneaded material; and mixing a vulcanizing agent into the kneaded material.