JPS5632528A - Air tire having improved crack failure resistance - Google Patents
Air tire having improved crack failure resistanceInfo
- 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
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
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)
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 |
-
1979
- 1979-08-24 JP JP10832179A patent/JPS5632528A/en active Pending
Cited By (10)
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 |
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