| 摘要 |
PROBLEM TO BE SOLVED: To provide a modified natural rubber which suppresses a viscosity rise during storage as compared with a conventional one and is excellent in workability, a method for producing the modified natural rubber, a rubber composition using such a modified natural rubber and excellent in workability, and a tire using the rubber composition. SOLUTION: The modified natural rubber is obtained by adding a polar group-containing monomer to natural rubber latex, graft-polymerizing the polar group-containing monomer to a natural rubber molecule in the natural rubber latex, adding an age inhibitor, and carrying out solidification and drying. The rubber composition uses such a modified natural rubber. The tire uses the rubber composition in any of tire members. COPYRIGHT: (C)2009,JPO&INPIT
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