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. 25, 2025
Filed:
Nov. 22, 2019
Osaka Gas Co., Ltd., Osaka, JP;
Osaka Gas Chemicals Co., Ltd., Osaka, JP;
Masahiro Yamada, Osaka, JP;
Hiroki Sakamoto, Osaka, JP;
Masayuki Sugimoto, Osaka, JP;
Masayuki Hirota, Osaka, JP;
Yumi Hosogi, Osaka, JP;
Hiroaki Murase, Osaka, JP;
OSAKA GAS CO., LTD., Osaka, JP;
OSAKA GAS CHEMICALS CO., LTD., Osaka, JP;
Abstract
A rubbery composition is prepared by combining (A) a rubber component, (B) a cellulose, and (C) fluorene compound having a 9,9-bis(aryl)fluorene skeleton. The fluorene compound (C1) may be a compound represented by the following formula (1): wherein a ring Z represents an arene ring, Rand Rrepresent a substituent, Xrepresents a heteroatom-containing functional group, k denotes an integer of 0 to 4, n denotes an integer of not less than 1, p denotes an integer of not less than 0. The rubbery composition has improved mechanical properties such as strength, elongation, and hardness.