JPS6466251A - Rubber composition for tire sidewall - Google Patents
Rubber composition for tire sidewallInfo
- Publication number
- JPS6466251A JPS6466251A JP62224447A JP22444787A JPS6466251A JP S6466251 A JPS6466251 A JP S6466251A JP 62224447 A JP62224447 A JP 62224447A JP 22444787 A JP22444787 A JP 22444787A JP S6466251 A JPS6466251 A JP S6466251A
- Authority
- JP
- Japan
- Prior art keywords
- hardnesses
- shore
- rubber composition
- 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
Links
- 235000019589 hardness Nutrition 0.000 abstract 3
- 244000043261 Hevea brasiliensis Species 0.000 abstract 2
- 239000005062 Polybutadiene Substances 0.000 abstract 2
- 229920003052 natural elastomer Polymers 0.000 abstract 2
- 229920001194 natural rubber Polymers 0.000 abstract 2
- 229920002857 polybutadiene Polymers 0.000 abstract 2
- 230000002596 correlated effect Effects 0.000 abstract 1
- 230000000875 corresponding effect Effects 0.000 abstract 1
- 150000001993 dienes Chemical class 0.000 abstract 1
- 229920003051 synthetic elastomer Polymers 0.000 abstract 1
- 239000005061 synthetic rubber Substances 0.000 abstract 1
Landscapes
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE:To provide the titled composition of high crack resistance, in particular, outstanding in weatherability in winter, comprising specified proportion of natural rubber etc. and a polybutadiene with the cis content predominant and the Shore A hardnesses at the corresponding respective specified temperatures specifically correlated. CONSTITUTION:The objective composition comprising (A) 30-100pts.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) 0-70pts.wt. of natural rubber and/or a diene-based synthetic rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62224447A JPS6466251A (en) | 1987-09-08 | 1987-09-08 | Rubber composition for tire sidewall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62224447A JPS6466251A (en) | 1987-09-08 | 1987-09-08 | Rubber composition for tire sidewall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6466251A true JPS6466251A (en) | 1989-03-13 |
Family
ID=16813917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62224447A Pending JPS6466251A (en) | 1987-09-08 | 1987-09-08 | Rubber composition for tire sidewall |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6466251A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10137875C1 (en) * | 2001-08-02 | 2003-04-30 | Dialog Semiconductor Gmbh | Charge / discharge protection circuit |
| DE10158494C1 (en) * | 2001-11-29 | 2003-08-07 | Dialog Semiconductor Gmbh | Charge / discharge protection circuit |
-
1987
- 1987-09-08 JP JP62224447A patent/JPS6466251A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10137875C1 (en) * | 2001-08-02 | 2003-04-30 | Dialog Semiconductor Gmbh | Charge / discharge protection circuit |
| DE10158494C1 (en) * | 2001-11-29 | 2003-08-07 | Dialog Semiconductor Gmbh | Charge / discharge protection circuit |
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