| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition for covering carcass cords and a pneumatic tire using the same. SOLUTION: The rubber composition includes an isoprene-based rubber and a styrene butadiene rubber as rubber components, silica, and a compound(s) expressed by formula (I) and/or formula (II). In formula (I) and formula (II), R<SP>1</SP>and R<SP>2</SP>identical or different, and are a hydrogen atom, alkyl, aryl, or aralkyl except that R<SP>1</SP>and R<SP>2</SP>are simultaneously hydrogen atoms. COPYRIGHT: (C)2011,JPO&INPIT
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