The purpose of the present invention is to provide a retreaded tire including a case rubber using a rubber composition for tires which has a specific aggregate density and a specific composition to prevent the formation of aggregates having a relatively large particle diameter causing cracks in a rubber. Thus, a retreaded tire having high resistance against crack growth, in particular, a heavy-duty retreaded tire including one for aircrafts is provided.The retreaded tire of the present invention is characterized by including a case rubber obtained from a rubber composition in which, the integrated value of white areas by particles for diameter of 29 µm or more is 15% or less of the integrated value of white areas by particles for diameter from 3 to 57 µm in an examoination of a cross-section of the rubber composition with a dispergrader based on ASTM D7723. The rubber composition contains zinc oxide, a fatty acid, and a zinc salt of fatty acid in a total amount of 2 parts by weight or more but less than 13 parts by weight per 100 parts by weight of the rubber.
RUBBER COMPOSITION, RETREADED TIRE OBTAINED USING SAME, AND PROCESS FOR PRODUCING SAID RETREADED TIRE
KAUTSCHUKZUSAMMENSETZUNG, DAMIT HERGESTELLTER RUNDERNEUERTER REIFEN UND VERFAHREN ZUR HERSTELLUNG DES RUNDERNEUERTEN REIFENS
COMPOSITION DE CAOUTCHOUC, PNEU RECHAPÉ OBTENU À L'AIDE DE LADITE COMPOSITION DE CAOUTCHOUC ET PROCÉDÉ DE PRODUCTION DUDIT PNEU RECHAPÉ
2020-11-18
Patent
Electronic Resource
English
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
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