JPS6466249A - Rubber composition for tire tread - Google Patents
Rubber composition for tire treadInfo
- Publication number
- JPS6466249A JPS6466249A JP62224445A JP22444587A JPS6466249A JP S6466249 A JPS6466249 A JP S6466249A JP 62224445 A JP62224445 A JP 62224445A JP 22444587 A JP22444587 A JP 22444587A JP S6466249 A JPS6466249 A JP S6466249A
- Authority
- JP
- Japan
- Prior art keywords
- hardnesses
- shore
- styrene
- deltab
- polybutadiene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE:To provide the titled composition outstanding in balance between wet road driving stability, wear resistance and low-temperature characteristics, comprising specified proportion of styrene-butadiene rubber and a polybutadiene with cis content predominant and the Shore A hardnesses at the corresponding respective specified temperatures specifically correlated. CONSTITUTION:The objective composition comprising (A) 10-40pts.wt. of a polybutadiene having the following characteristics: 1. cis content ... >=98%, 2. difference DELTAA between the Shore A hardnesses at -5 deg.C and 23 deg.C respectively ...<=4 and 3. ratio: DELTAB/DELTAA ... 1.0-1.5 (where DELTAB refers to difference between the Shore A hardnesses at -20 deg.C and 23 deg.C respectively) and (B) 60-90pts.wt. of a styrene-butadiene rubber with the styrene content of >=30%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62224445A JPS6466249A (en) | 1987-09-08 | 1987-09-08 | Rubber composition for tire tread |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62224445A JPS6466249A (en) | 1987-09-08 | 1987-09-08 | Rubber composition for tire tread |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6466249A true JPS6466249A (en) | 1989-03-13 |
Family
ID=16813883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62224445A Pending JPS6466249A (en) | 1987-09-08 | 1987-09-08 | Rubber composition for tire tread |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6466249A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006206755A (en) * | 2005-01-28 | 2006-08-10 | Sumitomo Rubber Ind Ltd | Tire rubber composition and pneumatic tire comprising the same |
-
1987
- 1987-09-08 JP JP62224445A patent/JPS6466249A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006206755A (en) * | 2005-01-28 | 2006-08-10 | Sumitomo Rubber Ind Ltd | Tire rubber composition and pneumatic tire comprising the same |
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