| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a rubber composition which is used for manufacturing a rubber excellent in tear strength (cutting resistance), and contains a block copolymer of a conjugated diene compound and a non-conjugated olefin, and a taper copolymer of the conjugated diene compound and the non-conjugated olefin; and to provide a crosslinked rubber composition obtained by crosslinking the rubber composition, and a tire using the rubber composition or the crosslinked rubber composition. <P>SOLUTION: The rubber composition contains the block copolymer of the conjugated diene compound and the non-conjugated olefin, and a taper copolymer having at least one block moiety of a block moiety composed of a monomer unit of the conjugated diene compound and a block moiety composed of a monomer unit of the non-conjugated olefin, and a random moiety in which the monomer units of the conjugated diene compound and the non-conjugated olefin are randomly arranged, wherein the mass ratio of the block copolymer and the taper copolymer is preferably in the range of 95/5 to 5/95. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
