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    FURNACE CARBON BLACK, PREPARATION THEREOF AND TIRE COMPRISING CARBON BLACK
    1.
    发明专利
    FURNACE CARBON BLACK, PREPARATION THEREOF AND TIRE COMPRISING CARBON BLACK 失效

    公开(公告)号：JPH11335585A

    公开(公告)日：1999-12-07

    申请号：JP10327099

    申请日：1999-04-09

    Applicant: DEGUSSA

    Inventor： VOGLER CONNY ,  VOGEL KARL ,  NIEDERMEIER WERNER ,  FREUND BURKHARD ,  MESSNER PAUL

    IPC: B60C1/00 ,  C08K3/04 ,  C08L9/00 ,  C08L9/06 ,  C08L21/00 ,  C09C1/48 ,  C09C1/50

    Abstract: PROBLEM TO BE SOLVED: To obtain an improved furnace carbon black having a decreased high-load abrasion, by keeping below a specific value the abs. slope of the particle size distribution curve of a furnace carbon black having a specific CTAB value, 24M4-DBP absorption quantity, etc. SOLUTION: The absolute slope AS of the particle size distribution curve shown in the equation of a furnace carbon black is kept below 400,000 nm , the carbon black having a CTAB value of 20-190 m /g and a 24M4-DBP absorption quantity of 40-140 ml/100 g, satisfying the correlation: tan δ0 / tanδ60 >2.76-6.7×10 XCTAB while formulating an SSBR/BR rubber compd., and with a tan δ60 value always lower than that of an ASTM carbon black having the same CTAB surface area and 24M4-DBP absorption quantity. In the equation, Hj represents a frequency of occurrence of particle size Xi, X bar is a particle size of an aggregate corresponding to the average particle wt. of the aggregate, and the total summation is kept in the range of 1-300 nm.

    Improved inversion carbon blacks of smaller rolling resistance
    3.
    发明专利
    Improved inversion carbon blacks of smaller rolling resistance 未知

    公开(公告)号：DE19839925A1

    公开(公告)日：1999-10-14

    申请号：DE19839925

    申请日：1998-09-02

    Applicant: DEGUSSA

    Inventor： VOGLER CONNY ,  VOGEL KARL ,  NIEDERMEIER WERNER ,  FREUND BURKHARD ,  MESSNER PAUL

    IPC: B60C1/00 ,  C08K3/04 ,  C09C1/50

    Abstract: Furnace carbon black is incorporated into an SSBR/BR rubber compound. The carbon black has CTAB value of 20-190m /g and 24M4-DBP absorption of 40-140 ml/100 g, with tan delta 0/tan delta 60 ratio which satisfies the relation tan delta 0/tan delta 60 \> 2.76-6.7 \* 10 \* CTAB, where tan delta 60 is lower than the value for ASTM carbon blacks with identical CTAB surface area and 24M4-DBP absorption. The distribution curve of the particle sizes has an absolute slope of less than 400000 nm . The slope is determined from formula AS = EPSILON Hi(xi-x) / EPSILON Hi(I), where both the numerator and denominator are summed from i = l to i = k. HI = frequency at which the particle diameter xI occurs; and x = particle diameter of the aggregate, whose weight corresponds to the average particle weight of the carbon black aggregate and the summation is in the range 1-3000 nm in equidistant spacing for each nanometer.

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