JPS5632528A - Air tire having improved crack failure resistance - Google Patents

Air tire having improved crack failure resistance

Info

Publication number
JPS5632528A
JPS5632528A JP10832179A JP10832179A JPS5632528A JP S5632528 A JPS5632528 A JP S5632528A JP 10832179 A JP10832179 A JP 10832179A JP 10832179 A JP10832179 A JP 10832179A JP S5632528 A JPS5632528 A JP S5632528A
Authority
JP
Japan
Prior art keywords
inhibitor
rubber
side wall
case
air tire
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
JP10832179A
Other languages
Japanese (ja)
Inventor
Shoji Kono
Masayoshi Nishitani
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 JP10832179A priority Critical patent/JPS5632528A/en
Publication of JPS5632528A publication Critical patent/JPS5632528A/en
Pending legal-status Critical Current

Links

Landscapes

  • Tires In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To improve ozone resistance and flex cracking resistance of side wall rubber for heavy cars, by adding an inhibitor for ozone degradation and/or inhibitor for flex cracking together with wax to case rubber too.
CONSTITUTION: An air tire for heavy cars having a ratio (w2/w1) of a thickness (w1) of side wall rubber in the maximum width position of tire with internal pressure filled to a thickness (w2) of case rubber of 0.2W15, especially 5W15, comprises 100pts.wt. dienebased rubber, side wall rubber obtained by blending 1W5pts.wt. wax with 1W4.5pts.wt. inhibitor for ozone degradation and/or inhibitor for flex cracking, and case rubber obtained by blending 0.5W2pts.wt. was with 1W3pts.wt. above-mentioned inhibitor. Addition of the inhibitor to the case rubber suppresses the migration of the inhibitor from the side wall rubber. When the inhibitor from the side wall rubber ic consumed, it can be fed automatically by the migration from the case rubber.
COPYRIGHT: (C)1981,JPO&Japio
JP10832179A 1979-08-24 1979-08-24 Air tire having improved crack failure resistance Pending JPS5632528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10832179A JPS5632528A (en) 1979-08-24 1979-08-24 Air tire having improved crack failure resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10832179A JPS5632528A (en) 1979-08-24 1979-08-24 Air tire having improved crack failure resistance

Publications (1)

Publication Number Publication Date
JPS5632528A true JPS5632528A (en) 1981-04-02

Family

ID=14481739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10832179A Pending JPS5632528A (en) 1979-08-24 1979-08-24 Air tire having improved crack failure resistance

Country Status (1)

Country Link
JP (1) JPS5632528A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62167336A (en) * 1986-01-17 1987-07-23 Bridgestone Corp Pneumatic tire
JPS63112636A (en) * 1986-10-29 1988-05-17 Bridgestone Corp Pneumatic tire having improved side appearance
JPH0399903A (en) * 1989-09-14 1991-04-25 Sumitomo Rubber Ind Ltd Radial tire for heavy load
JPH06199112A (en) * 1992-12-28 1994-07-19 Sumitomo Rubber Ind Ltd Heavy duty tire
JP2013010923A (en) * 2011-05-27 2013-01-17 Sumitomo Rubber Ind Ltd Pneumatic tire
JP2013199655A (en) * 2011-05-27 2013-10-03 Sumitomo Rubber Ind Ltd Pneumatic tire
WO2019244578A1 (en) * 2018-06-18 2019-12-26 横浜ゴム株式会社 Pneumatic tire

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62167336A (en) * 1986-01-17 1987-07-23 Bridgestone Corp Pneumatic tire
JPS63112636A (en) * 1986-10-29 1988-05-17 Bridgestone Corp Pneumatic tire having improved side appearance
JPH0399903A (en) * 1989-09-14 1991-04-25 Sumitomo Rubber Ind Ltd Radial tire for heavy load
JPH06199112A (en) * 1992-12-28 1994-07-19 Sumitomo Rubber Ind Ltd Heavy duty tire
JP2013010923A (en) * 2011-05-27 2013-01-17 Sumitomo Rubber Ind Ltd Pneumatic tire
JP2013199655A (en) * 2011-05-27 2013-10-03 Sumitomo Rubber Ind Ltd Pneumatic tire
US8875764B2 (en) 2011-05-27 2014-11-04 Sumitomo Rubber Industries, Ltd. Pneumatic tire
US9579929B2 (en) 2011-05-27 2017-02-28 Sumitomo Rubber Industries, Ltd. Pneumatic tire
WO2019244578A1 (en) * 2018-06-18 2019-12-26 横浜ゴム株式会社 Pneumatic tire
JPWO2019244578A1 (en) * 2018-06-18 2021-05-06 横浜ゴム株式会社 Pneumatic tires

Similar Documents

Publication Publication Date Title
JPS5699805A (en) Pneumatic tyre with tread consisting of at least two kinds of rubber
JPS543786A (en) Wheels for running in conduit
JPS5632528A (en) Air tire having improved crack failure resistance
JPS5334025A (en) Fuel changing over equipment in multiple fuel engine
JPS5330502A (en) Pneumatic rubber tire with different cut resisting material for running rough ground
JPS56128204A (en) Pneumatic tyre
JPS5734140A (en) Rubber composition for internal layer of side wall
JPS57207629A (en) Rubber composition
JPS56157605A (en) Radial tire for small-size truck
JPS5336546A (en) Stabilized rubber composition
JPS5683663A (en) Improved plug valve
JPS5311251A (en) Running valve oil system
JPS5253126A (en) Compression ratio adjustment device, 2-cycle engine
GB1284406A (en) Rubber composition
JPS5494544A (en) High-rigidity and modulus rubber composition
JPS5336547A (en) Stabilized rubber composition
JPS56109233A (en) Rubber composition with good wetskid characteristic
Botting More than making the grade
JPS5291218A (en) Safety apparatus for dump trucks
JPS54142263A (en) Rubber composition
JPS51114451A (en) Diene rubber composition
JPS5543167A (en) Rubber composition having high hardness and high modulus
JPS53147387A (en) Oil tanker
JPS52109546A (en) Inorganic fillers for use in incorporating into polyolefins
JPS52121215A (en) Outrigger