Rubber composition for tire tread and pneumatic tire

Rubber composition for tire tread and pneumatic tire

  • CN 104,487,506 B
  • Filed: 06/13/2013
  • Issued: 06/07/2019
  • Est. Priority Date: 08/03/2012
  • Status: Active Grant
First Claim
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1. a kind of rubber composition for tire tread,On the basis of 100 mass % rubber components, the rubber composition includes:

  • the cis-content of 10-40 mass % is 50 matterThe amount % modified polybutadiene rubber and 55-75 mass % butadiene-styrene rubber below for silica, and butadiene-styrene rubberAmount is not 55 mass %;

    AndRelative to 100 mass parts rubber components, the N2 adsorption that the rubber composition further includes 40-120 mass parts compares tableArea is 160-270m2The silica of/g,The rubber composition further includes silane coupling agent and N2 adsorption specific surface area is 100-250m2The carbon black of/g,It wherein, is the polybutadiene modified by following formula (1) compound represented for the modified polybutadiene rubber of silicaRubber,

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