| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rubber composition which does not deteriorate workability even if a large amount of an inorganic filler is blended into a rubber component including a butyl rubber and to provide a rubber component which has less cracks from an end part of a roll sheet during taking off the roll due to excellent tear strength and is improved in roll processability.SOLUTION: There is provided a rubber composition which comprises: a rubber component (A) including a butyl rubber; an inorganic filler (B); and a PTFE and/or PTFE-containing organic polymer (C), wherein 0.5 to 10 pts.mass of the PTFE and/or PTFE-containing organic polymer (C) is contained based on 100 pts.mass of the rubber component (A) including a butyl rubber and the inorganic filler (B).</p> |
