Precipitated silicic acids as a reinforcement filler for elastomer mixtures

Precipitated silicic acids as a reinforcement filler for elastomer mixtures

CN
  • CN 101,990,519 A
  • Filed: 03/19/2009
  • Published: 03/23/2011
  • Est. Priority Date: 04/07/2008
  • Status: Active Application
First Claim
Patent Images

1. the precipitated silica that has following physico-chemical property:

  • Ctab surface amasss 〉

    =150m 2/ g BET surface-area;



    =150m 2/ g DBP counts 180-350g/ (100g)Peak width at half height/peak≤

    0.95d?25%

    /d?75%

    1.00-1.80Relative width γ

    (pressurization)≤

    2.8 (gnm)/mlFineness value F.V. (pressurization);

    100-140

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