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JPS56128201A - Radial tyre improved in resistance against partial frictional consumption - Google Patents

Radial tyre improved in resistance against partial frictional consumption

Info

Publication number
JPS56128201A
JPS56128201A JP2989480A JP2989480A JPS56128201A JP S56128201 A JPS56128201 A JP S56128201A JP 2989480 A JP2989480 A JP 2989480A JP 2989480 A JP2989480 A JP 2989480A JP S56128201 A JPS56128201 A JP S56128201A
Authority
JP
Japan
Prior art keywords
tyre
radial
styrene
radial tyre
butadiene copolymer
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.)
Granted
Application number
JP2989480A
Other languages
Japanese (ja)
Other versions
JPS6361203B2 (en
Inventor
Isamu Imai
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.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP2989480A priority Critical patent/JPS56128201A/en
Publication of JPS56128201A publication Critical patent/JPS56128201A/en
Publication of JPS6361203B2 publication Critical patent/JPS6361203B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • B60C11/005—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Tires In General (AREA)

Abstract

PURPOSE: To improve the resistance of a radial type for a truck against the partial frictional consumption and prolong the duration of the tyre by designing the tyre to have a predetermined relationship between the tyre width and the curvature radius of the grounding surface of the tyre and also making a tread grounding part of the tyre of a predetermined rubber composition mainly composed of a styrene- butadiene copolymer.
CONSTITUTION: The radial tyre is designed to satisfy an expression, formula (1) where SW is the radial tyre width, CR is the curvature radius of the grounding surface in the cross section including a tyre rotating shaft, and R is a main crown. At least the grounding surface B of the tread is made of a styrene-butadiene copolymer rubber having a viscosity-average molecular weight of more than 2×105 or a rubber composition composed of 100pts.wt. of blend rubber which include 30 parts of weight of the above-mentioned styrene-butadiene copolymer rubber, 5W60pts.wt. of liquid polymer of styrene-butadiene, polyisoplene and polybutadiene having a viscosity-average molecular weight of 2×103 to 1.5×105, and 40W90pts. wt. of carbon black. By this, the resistance of the radial tyre against the partial frictional consumption can be much improved and the duration of the radial tyre can be much prolonged.
COPYRIGHT: (C)1981,JPO&Japio
JP2989480A 1980-03-10 1980-03-10 Radial tyre improved in resistance against partial frictional consumption Granted JPS56128201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2989480A JPS56128201A (en) 1980-03-10 1980-03-10 Radial tyre improved in resistance against partial frictional consumption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2989480A JPS56128201A (en) 1980-03-10 1980-03-10 Radial tyre improved in resistance against partial frictional consumption

Publications (2)

Publication Number Publication Date
JPS56128201A true JPS56128201A (en) 1981-10-07
JPS6361203B2 JPS6361203B2 (en) 1988-11-28

Family

ID=12288672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2989480A Granted JPS56128201A (en) 1980-03-10 1980-03-10 Radial tyre improved in resistance against partial frictional consumption

Country Status (1)

Country Link
JP (1) JPS56128201A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959505A (en) * 1982-09-30 1984-04-05 Yokohama Rubber Co Ltd:The Pneumatic radial tire
JPS63314254A (en) * 1987-06-17 1988-12-22 Yokohama Rubber Co Ltd:The Pneumatic tire
JPH01145202A (en) * 1987-11-30 1989-06-07 Sumitomo Rubber Ind Ltd Pneumatic tyre
JPH02225103A (en) * 1988-11-21 1990-09-07 Sumitomo Rubber Ind Ltd Tire for vehicle
JPH04224402A (en) * 1990-12-26 1992-08-13 Sumitomo Rubber Ind Ltd Heavy load radial tire
JPH04283108A (en) * 1991-03-07 1992-10-08 Sumitomo Rubber Ind Ltd Radial tire for heavy load
JP2008120940A (en) * 2006-11-14 2008-05-29 Toyo Tire & Rubber Co Ltd Pneumatic tire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2004270746B2 (en) 2003-09-09 2010-12-02 Insight Equity A.P.X., Lp Photochromic polyurethane laminate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5272742A (en) * 1975-12-16 1977-06-17 Yokohama Rubber Co Ltd:The Rubber composition

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5272742A (en) * 1975-12-16 1977-06-17 Yokohama Rubber Co Ltd:The Rubber composition

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959505A (en) * 1982-09-30 1984-04-05 Yokohama Rubber Co Ltd:The Pneumatic radial tire
JPH0238402B2 (en) * 1982-09-30 1990-08-30 Yokohama Rubber Co Ltd
JPS63314254A (en) * 1987-06-17 1988-12-22 Yokohama Rubber Co Ltd:The Pneumatic tire
JPH01145202A (en) * 1987-11-30 1989-06-07 Sumitomo Rubber Ind Ltd Pneumatic tyre
JPH02225103A (en) * 1988-11-21 1990-09-07 Sumitomo Rubber Ind Ltd Tire for vehicle
JPH04224402A (en) * 1990-12-26 1992-08-13 Sumitomo Rubber Ind Ltd Heavy load radial tire
JPH04283108A (en) * 1991-03-07 1992-10-08 Sumitomo Rubber Ind Ltd Radial tire for heavy load
JP2008120940A (en) * 2006-11-14 2008-05-29 Toyo Tire & Rubber Co Ltd Pneumatic tire

Also Published As

Publication number Publication date
JPS6361203B2 (en) 1988-11-28

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