Rubber composition containing two silicas
    19.
    发明授权
    Rubber composition containing two silicas 有权
    含有二氧化硅的橡胶组合物

    公开(公告)号:US06506829B1

    公开(公告)日:2003-01-14

    申请号:US09625109

    申请日:2000-07-25

    IPC分类号: C08K336

    摘要: The present invention relates to a rubber composition comprising (A) an elastomer containing olefinic unsaturation and (B) 35 to 110 phr of silica filler, wherein said silica filler is comprised of (i) 10 to 100 phr of a first silica having a pore size distribution maximum of the aggregates in the first silica ranging from greater than 55 to 400 nm as determined by mercury porosimetry and an average specific surface area ranging from 60 to 135 m2/g as determined by N2 adsorption; and (ii) 10 to 100 phr of a second silica having a pore size distribution maximum of the aggregates in the second silica ranging from 5 to 50 nm as determined by mercury porosimetry and an average specific surface area ranging from 140 to 250 m2/g as determined by N2 adsorption.

    摘要翻译: 本发明涉及一种橡胶组合物,其包含(A)含有烯属不饱和的弹性体和(B)35至110phr的二氧化硅填料,其中所述二氧化硅填料由(i)10至100phr的具有孔 通过汞孔率法测定的第一硅石中的聚集体的尺寸分布最大值为大于55至400nm,通过N 2吸附测定的平均比表面积为60至135m 2 / g; 和(ii)通过水银孔率法测定的10至100phr的第二二氧化硅,其第二硅石中的聚集体的孔径分布最大值为5至50nm,平均比表面积为140-250m 2 / g 由N 2吸附测定。