Invention Grant
- Patent Title: Rubber composition and pneumatic tire using the same in tread
- Patent Title (中): 橡胶组合物和充气轮胎在胎面上使用相同
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Application No.: US10522381Application Date: 2003-07-28
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Publication No.: US07211630B2Publication Date: 2007-05-01
- Inventor: Koji Masaki , Yoshikatsu Hatakeyama
- Applicant: Koji Masaki , Yoshikatsu Hatakeyama
- Applicant Address: JP Tokyo
- Assignee: Bridgestone Corporation
- Current Assignee: Bridgestone Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2002-222611 20020731
- International Application: PCT/JP03/09546 WO 20030728
- International Announcement: WO2004/011545 WO 20040205
- Main IPC: C08L9/06
- IPC: C08L9/06 ; C08L15/00
Abstract:
A rubber composition comprising as a rubber component a specified styrene-butadiene copolymer (A) and a styrene-isoprene copolymer of a specified hydrogenation ratio (B) wherein a bound styrene content of the copolymer (B) is larger by a given value than a bound styrene content of the copolymer (A) is good in the wear resistance and fracture property and further excellent in the wet-skid resistance and dry gripping property.
Public/Granted literature
- US20050277750A1 Rubber composition and pneumatic tire using the same in tread Public/Granted day:2005-12-15
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