JPS5777204A - Pneumatic radial tire - Google Patents
Pneumatic radial tireInfo
- Publication number
- JPS5777204A JPS5777204A JP55151447A JP15144780A JPS5777204A JP S5777204 A JPS5777204 A JP S5777204A JP 55151447 A JP55151447 A JP 55151447A JP 15144780 A JP15144780 A JP 15144780A JP S5777204 A JPS5777204 A JP S5777204A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- belt portion
- specific
- tread
- less
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To reduce a fuel cost as well as improve a braking performance and abrasion resistance on a wet road surface, by combining suitably a specific tread rubber material, a specific tread design and a specific belt portion structure.
CONSTITUTION: A treat portion rubber 13 is composed of a mixture blended with 5W30wt% polyisobutylene-isoprene rubber having 1W2wt% chlorine and/or bromine, 40W95wt% natural rubber and/or polyisoprene rubber and less than 50wt% polybutadiene rubber. A drainageway of a tread portion 1 is formed in the area ratio of 20W30% against a whole ground-contacting area. Further, on a belt portion 4, a cord having more than 2,500kg/mm2 Yound's modulus of a single cord is disposed at an angle of 15W25 degree against a circumferential direction of a tire, while a circumferential directional tensile rigidity of the belt portion 4 is made to be less than two hundred times to a radial directional tensile rigitidy.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55151447A JPS5777204A (en) | 1980-10-30 | 1980-10-30 | Pneumatic radial tire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55151447A JPS5777204A (en) | 1980-10-30 | 1980-10-30 | Pneumatic radial tire |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5777204A true JPS5777204A (en) | 1982-05-14 |
JPS6245081B2 JPS6245081B2 (en) | 1987-09-24 |
Family
ID=15518791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55151447A Granted JPS5777204A (en) | 1980-10-30 | 1980-10-30 | Pneumatic radial tire |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5777204A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0270501A (en) * | 1988-09-06 | 1990-03-09 | Sumitomo Rubber Ind Ltd | High speed radial tire |
-
1980
- 1980-10-30 JP JP55151447A patent/JPS5777204A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0270501A (en) * | 1988-09-06 | 1990-03-09 | Sumitomo Rubber Ind Ltd | High speed radial tire |
Also Published As
Publication number | Publication date |
---|---|
JPS6245081B2 (en) | 1987-09-24 |
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