Mixtures of organosilane-polysulfanes and process for preparing rubber compounds containing such mixtures

    公开(公告)号:CZ294761B6

    公开(公告)日:2005-03-16

    申请号:CZ222497

    申请日:1997-07-14

    Applicant: DEGUSSA

    Abstract: The present invention relates to mixtures of organosilane-polysulfanes of the general formula(RO)i3Si(CHi2)ixS-Siz-S(CHi2)ixSi(OR)i3, in which R represents a straight or branched alkyl chain containing 1 to 8 carbon atoms, in particular 1 to 3 carbon atoms, x denotes means an integer from 1 to 8 z represents 0 to 6, wherein the sum of the proportions of the organosilane-polysulfanes in which z = 0 or z = 1 is greater than or equal to 80 percent by weight, providing that the proportion of polysulfanes in which z = 0 remains below 80 percent and the proportion of organosilane-polysulfanes in which z represents an integer from 2 to 6 does not exceed a proportion of 20 percent by weight in the mixtures. The invention also relates to rubber compounds produced using these mixtures, in particular for automobile tire treads.

    69.
    发明专利
    未知

    公开(公告)号:PT744437E

    公开(公告)日:2004-04-30

    申请号:PT96106332

    申请日:1996-04-23

    Applicant: DEGUSSA

    Abstract: Mixts. of organosilane cpds. of formula (I) and (II) are claimed (M): Ä(RO)3Si(CH2)3SxÜ2 (I) and Ä(R'O)3Si(CH2)y-CH3 (II), where R, R' = 1-8C alkyl (same or different); x = 1-4; and y = 1-19; in amts. of 40-95 wt% (I) and 5-60 wt% (II). Also claimed are vulcanisable moulding materials and rubber mixts. contg. 10-250 pts. silicate filler and 0-150 pts. carbon black to 100 pts. rubber, plus 0.1-20 pts. mixt. (M) to 100 pts. silicate filler.

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