Last Updated: May 10, 2026

Patent: 10,081,699

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Summary for Patent: 10,081,699

Title:	Rubber composition for tire tread, and pneumatic tire
Abstract:	A rubber composition contains a diene rubber component containing at least 20 mass % of a modified conjugated diene rubber, a silica, and a silane coupling agent; the modified conjugated diene rubber having at least one modified part and at least one conjugated diene rubber part; the conjugated diene rubber part having a conjugated diene copolymer block and an isoprene block containing from 70 mass % to 100 mass % of isoprene units in each conjugated diene rubber part; the modified part bonding to an end of the conjugated diene rubber part and having a functional group which interacts with the silica; a content of the silica being from 60 to 200 parts by mass per 100 parts by mass of the diene rubber component; the silane coupling agent being a polysiloxane represented by formula (1), (A)a(B)b(C)c(D)d(R1)eSiO(4-2a-b-c-d-e)/2, and having a content from 1.0 to 20 mass % of the content of the silica.
Inventor(s):	Masaki Sato, Satoshi Mihara
Assignee:	Yokohama Rubber Co Ltd
Application Number:	US14/770,457
Patent Claims:	see list of patent claims

Details for Patent 10,081,699

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>Applicant	>Tradename	>Biologic Ingredient	>Dosage Form	>BLA	>Approval Date	>Patent No.	>Expiredate

International Patent Family for US Patent 10,081,699

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Country	Patent Number	Estimated Expiration
World Intellectual Property Organization (WIPO)	2014129665	⤷ Start Trial
United States of America	2016009846	⤷ Start Trial
South Korea	20150110668	⤷ Start Trial
South Korea	101625019	⤷ Start Trial
Japan	WO2014129665	⤷ Start Trial
Japan	6476555	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration

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