| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the dispersibility of a filler, while controlling the deterioration of strength. <P>SOLUTION: A method for producing a modified dienic rubber polymer comprises adding and reacting a metathesis catalyst to a conjugated dienic rubber polymer having a vinyl bond content of ≥20 mass% in conjugated diene units, and reacting the obtained reaction product with a compound having olefin bonds in the molecule and having at least one functional group selected from the group consisting of carboxyl group, alkoxyl group, hydroxyl group, epoxy group and amino group in the presence of the metathesis catalyst to obtain the modified dienic rubber polymer. The obtained modified dienic rubber polymer is blended and mixed with a filler such as silica or carbon black as fillers to prepare a rubber composition. <P>COPYRIGHT: (C)2012,JPO&INPIT |
