Invention Grant
- Patent Title: Hydrogenated branched conjugated diene copolymer, rubber composition and pneumatic tire
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Application No.: US14378193Application Date: 2013-01-22
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Publication No.: US10040877B2Publication Date: 2018-08-07
- Inventor: Kensuke Washizu
- Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
- Applicant Address: JP Kobe-shi
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Kobe-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2012-049687 20120306; JP2012-222395 20121004
- International Application: PCT/JP2013/051189 WO 20130122
- International Announcement: WO2013/132905 WO 20130912
- Main IPC: C08F36/22
- IPC: C08F36/22 ; C08C19/02 ; B60C1/00 ; C08F36/06 ; C08F36/08 ; C08F236/10 ; C08F236/22 ; C08L47/00

Abstract:
A pneumatic tire produced by processing a rubber composition including a hydrogenated branched conjugated diene copolymer produced by copolymerizing a branched conjugated diene compound and a vinyl compound to form a branched conjugated diene copolymer and hydrogenating the branched conjugated diene copolymer. The branched conjugated diene compound is represented by formula (1), where R1 is an aliphatic hydrocarbon having 6 to 11 carbon atoms, the vinyl compound is represented by formula (3), where R4 is a hydrogen atom, an aliphatic hydrocarbon group having 1 to 3 carbon atoms, an alicyclic hydrocarbon group having 3 to 8 carbon atoms, or an aromatic hydrocarbon group having 6 to 10 carbon atoms, copolymerization ratio of the branched conjugated diene compound is 1 to 99% by weight, copolymerization ratio of the vinyl compound is 99 to 1% by weight, the branched conjugated diene compound is myrcene and/or farnesene, and the vinyl compound is styrene.
Public/Granted literature
- US20150031839A1 HYDROGENATED BRANCHED CONJUGATED DIENE COPOLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE Public/Granted day:2015-01-29
Information query
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