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    RUBBER MIXTURE CONTAINING ORGANOSILANEPOLYSULFANE
    4.
    发明专利
    RUBBER MIXTURE CONTAINING ORGANOSILANEPOLYSULFANE 失效

    公开(公告)号：JP2000186172A

    公开(公告)日：2000-07-04

    申请号：JP35735499

    申请日：1999-12-16

    Applicant: DEGUSSA

    Inventor： FREUND BURKHARD DR ,  LUGINSLAND HANS-DETLEF DR

    IPC: C08L21/00 ,  C08K5/49 ,  C08K5/5397 ,  C08K5/54 ,  C08K5/548 ,  C08K5/541

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject mixture capable of avoiding a tendency of a pre-vulcanization on using a long chain organosilanepolysulfane in a rubber mixture and useful as a tire tread by including the organosilanepolysulfane and a trivalent phosphorus compound for desulfurization. SOLUTION: This rubber mixture contains (A) at least one kind of the organosilanepolysulfane [e.g.; bis-[3-(triethoxysilyl)-propyl]tetrasulfane] and (B) at least one kind of desulfurizing reagent (e.g.; triphenylphosphine) consisting of trivalent phosphorus compound. In the mixture, it is preferable to contain a synthetic rubber and silicic acid as filler. The component A is contained in an amount of preferably 0.1-15 mass %, more preferably 5-10 mass % based on the amount of the used filler, and the component B is contained in an amount of preferably 5-80 mass %, more preferably 10-40 mass % based on the amount of the component A.

    7.
    发明专利
    未知

    公开(公告)号：AT266694T

    公开(公告)日：2004-05-15

    申请号：AT99110615

    申请日：1999-06-02

    Applicant: DEGUSSA

    Inventor： LUGINSLAND HANS-DETLEF DR ,  BATZ-SOHN CHRISTOPH DR

    IPC: C07F7/18 ,  C07F7/12 ,  C08G77/28 ,  C08G77/392 ,  C08G77/42 ,  C08G77/48 ,  C08K5/54 ,  C08K5/548 ,  C08L21/00

    Abstract: Oligomeric organosilane polysulfanes are novel. An oligomeric organosilane polysulfane (I) contains structural units (A), (B) and/or (C) in any linear, branched or cyclic arrangement whereby at least (A) or (B) is present. Independent claims are included for: (i) a process for the production of (I) by reaction of a compound of formula (1), optionally in a solvent and/or in the presence of a catalyst at 0-150 degrees C with addition of water to cause self polymerization or under analogous reaction conditions by copolymerization with a compound of formula (2); (ii) a rubber mixture (II) containing organosilane polysulfane (I); (iii) a process for the production of the rubber mixture (II) by addition of (I) and a filler to rubber; and (iv) molded articles prepared from (II). Y-Sx-(CH2)nSiR R R (1) RR R R Si (2) Y = H, CN, -(CH2)nSiRR R ; n = 1-8; R-R = H, 1-4C alkyl, 1-4C alkoxy, halogen or OSiR R R ; x = 1-8; z = 2-6; o, p, qq = 1-40; o+p+q = 2-40.

    8.
    发明专利
    未知

    公开(公告)号：ID23211A

    公开(公告)日：2000-03-30

    申请号：ID990874

    申请日：1999-09-20

    Applicant: DEGUSSA

    Inventor： LUGINSLAND HANS-DETLEF DR ,  BATZ-SOHN CHRISTOPH DR

    IPC: C07F7/02 ,  C07F7/18 ,  C08K3/36 ,  C08K5/54 ,  C08K5/548 ,  C08L21/00

    Abstract: A rubber mixture containing rubber, filler, especially precipitated silicic acid and optionally other rubber adjuvants, and at least one sulfanyl silane, in quantity 0.1-15 preferably 5-10 wt. %, relative to the amount of oxygenic filler is new. The sulfanyl silane has the formula (I): X X X Si-A-S-SiR R R (I) R -R each = H, 1-8C alkyl, 1-8C alkoxy, 1-4C haloalkyl, aryl, 7-16C aralkyl, halogen, A-S-SiR R R , R -R each = H, 1-16C alkyl, 1-16C alkoxy, 1-16C haloalkyl. aryl, 7-16C aralkyl, halogen, X X X -A-S, A = 1-16C alkyl, linear or branched, optionally substituted with 1-4C alkyl, 1-4C alkoxy, halogen, nitrile, 1-4C haloalkyl, NO2, 1-4C thioalkyl, NR R , -A-S-SiR R R , or X X X -A-, aryl, or 7-16C aralkyl. Independent claims are included for: (1) Preparation of sulfanyl silanes of formula (I) by reaction of a corresponding mercaptosilane X1X2X3Si-alkyl-SH with chlorosilanes Cl-SiR1R2R3 in the presence of an adjuvant, e.g. triethylamine or other amine in an organic solvent, e.g. an alkane, and boiling of the mixture to complete the reaction. The solvent is then distilled off, and the solid hydrochloride of the adjuvant base is filtered off; and (2) a rubber mixture containing oxygenic filler, especially precipitated silicic acid, and optionally other rubber adjuvants, and at least one sulfanyl silane in amount 0.1-15 wt. % relative to the amount of oxygenic filler.

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