ゴム組成物及びそれを用いた更生タイヤ及びその更生タイヤの製造方法
ゴム組成物及びそれを用いた更生タイヤ及びその更生タイヤの製造方法
The purpose of the present invention is to provide a retreaded tire having high resistance to crack growth, in particular, a heavy-duty retreaded tire including one for aircrafts, by configuring the retreaded tire so as to include a case rubber obtained from a rubber composition for tires which has a specific aggregate density and a specific makeup. The rubber composition is less apt to develop aggregates having a relatively large particle diameter, which can be a cause of rubber cracking. The retreaded tire of the present invention is characterized by including a case rubber obtained from a rubber composition in which, when a cross-section of the rubber composition is examined with a dispergrader in accordance with ASTM D7723, then the integrated amount of white areas each having a particle diameter of 29 µm or larger is 15% or less of the integrated amount of white areas each having a particle diameter of 3-57 µm. The rubber composition contains zinc oxide, a fatty acid, and a fatty acid zinc salt in a total amount of 2 parts by weight or greater but less than 13 parts by weight per 100 parts by weight of the rubber.
Dokumentinformationen
ゴム組成物及びそれを用いた更生タイヤ及びその更生タイヤの製造方法
2024-01-16
Patent
Elektronische Ressource
Japanisch
| IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / C08J Verarbeitung , WORKING-UP / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |