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JPS56127650A - Tread rubber composition for tire - Google Patents

Tread rubber composition for tire

Info

Publication number
JPS56127650A
JPS56127650A JP3138280A JP3138280A JPS56127650A JP S56127650 A JPS56127650 A JP S56127650A JP 3138280 A JP3138280 A JP 3138280A JP 3138280 A JP3138280 A JP 3138280A JP S56127650 A JPS56127650 A JP S56127650A
Authority
JP
Japan
Prior art keywords
rubber
vinyl
vinyl polybutadiene
rubber composition
tread rubber
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
JP3138280A
Other languages
Japanese (ja)
Inventor
Hiroshi Furukawa
Yuichi Saito
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.)
Sumitomo Rubber Industries Ltd
Original Assignee
Sumitomo Rubber Industries 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 Sumitomo Rubber Industries Ltd filed Critical Sumitomo Rubber Industries Ltd
Priority to JP3138280A priority Critical patent/JPS56127650A/en
Publication of JPS56127650A publication Critical patent/JPS56127650A/en
Pending legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To obtain a tread rubber composition for tires with extremely reduced rolling resistance without damaging frictional resistance on a wet road surface, by utilizing a specific high-vinyl polybutadiene.
CONSTITUTION: 20W100pts.wt. High-vinyl polybutadiene rubber having at least 40wt% vinyl structure, preferably not less than 60wt% vinyl structure is blended with 80W0pts.wt., preferably 40W60pts.wt. natural rubber, synthetic isoprene rubber, or their mixture. A high-vinyl polybutadiene rubber having a glass-transition temperture from -70°CW-20° and 30W10% trans structure is preferable as the high-vinyl polybutadiene rubber. The high-vinyl polybutadiene may be used alone, and the performance of rolling resistance is improved further by blending it with the natural rubber or synthetic polyisoprene rubber.
COPYRIGHT: (C)1981,JPO&Japio
JP3138280A 1980-03-11 1980-03-11 Tread rubber composition for tire Pending JPS56127650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3138280A JPS56127650A (en) 1980-03-11 1980-03-11 Tread rubber composition for tire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3138280A JPS56127650A (en) 1980-03-11 1980-03-11 Tread rubber composition for tire

Publications (1)

Publication Number Publication Date
JPS56127650A true JPS56127650A (en) 1981-10-06

Family

ID=12329699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3138280A Pending JPS56127650A (en) 1980-03-11 1980-03-11 Tread rubber composition for tire

Country Status (1)

Country Link
JP (1) JPS56127650A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5725338A (en) * 1980-07-22 1982-02-10 Sumitomo Rubber Ind Ltd Rubber composition for tread inner layer
JPS5734139A (en) * 1980-08-07 1982-02-24 Sumitomo Rubber Ind Ltd Rubber composition for undertread
DE3823662A1 (en) * 1987-07-10 1989-01-19 Yokohama Rubber Co Ltd RUBBER MIX FOR THE RUNNING OF TIRES
US5484836A (en) * 1993-09-08 1996-01-16 The Yokohama Rubber Co., Ltd. Rubber composition for tire tread
US5500482A (en) * 1993-09-20 1996-03-19 The Yokohama Rubber Co., Ltd. Rubber composition for tire tread

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5725338A (en) * 1980-07-22 1982-02-10 Sumitomo Rubber Ind Ltd Rubber composition for tread inner layer
JPS5734139A (en) * 1980-08-07 1982-02-24 Sumitomo Rubber Ind Ltd Rubber composition for undertread
DE3823662A1 (en) * 1987-07-10 1989-01-19 Yokohama Rubber Co Ltd RUBBER MIX FOR THE RUNNING OF TIRES
US5484836A (en) * 1993-09-08 1996-01-16 The Yokohama Rubber Co., Ltd. Rubber composition for tire tread
US5500482A (en) * 1993-09-20 1996-03-19 The Yokohama Rubber Co., Ltd. Rubber composition for tire tread

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