JPS6466249A - Rubber composition for tire tread - Google Patents

Rubber composition for tire tread

Info

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
Application number
JP62224445A
Other languages
Japanese (ja)
Inventor
Yasunori Yoshida
Noriyuki Isobe
Hiroshi Takino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Tire Corp
Original Assignee
Toyo Tire and Rubber Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyo Tire and Rubber Co Ltd filed Critical Toyo Tire and Rubber Co Ltd
Priority to JP62224445A priority Critical patent/JPS6466249A/en
Publication of JPS6466249A publication Critical patent/JPS6466249A/en
Pending legal-status Critical Current

Links

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  • 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%.
JP62224445A 1987-09-08 1987-09-08 Rubber composition for tire tread Pending JPS6466249A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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