A rubber composition for tire treads having improved {HEAD ~ rolling resistance} and wet road braking performance, comprising a chlorinated butyl rubber and a brominated butyl rubber, natural rubber and {TAIL ~ a polyisoprene rubber} and, if desired, a polybutadiene rubber in specific blending ratios 
A rubber composition for tire treads having improved { HEAD ~ rolling resistance } and wet road braking performance , comprising a chlorinated butyl rubber and a brominated butyl rubber , natural rubber and { TAIL ~ a polyisoprene rubber } and , if desired , a polybutadiene rubber in specific blending ratios
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH