| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a copolymer of a conjugated diene compound and a non-conjugated olefin, which is used for the production of a rubber having excellent crack-growth resistance, heat resistance, and ozone resistance, and contains cis-1,4 bonds in moieties originating from the conjugated diene compound; to provide a rubber composition containing the copolymer; to provide a crosslinked rubber composition prepared by crosslinking the rubber composition; and to provide a tire made by using the rubber composition or the crosslinked rubber composition. <P>SOLUTION: The copolymer of a conjugated diene compound and a non-conjugated olefin is characterized in that the content of cis-1,4 bonds in a moiety originating from the conjugated diene compound is greater than 92%. <P>COPYRIGHT: (C)2012,JPO&INPIT |
