Polysulfide compounds (I) are new. Polysulfide compounds of formula (I) are new. R : methyl (preferred), ethyl, n-propyl, 2-propyl, n-butyl, isobutyl, tert-butyl, 5C alkyl, 6C alkyl, 7C alkyl or C8 alkyl; and n : 2-6, where the amount of (I) is at least 80%, preferably 95-99%, when n is 4. Independent claims are included for: (1) preparation of (I); (2) a rubber composition comprising at least one rubber and (I); (3) producing vulcanizates comprising vulcanizing the rubber mixture at a melt temperature of 100-200[deg] C, preferably 130-180[deg] C; (4) an additive composition comprising the sulfur-containing alkoxysilane, preferably bis-(triethoxysilylpropyl)tetrasulfane, bis-(triethoxysilylpropyl)disulfane, 3-(triethoxysilyl)-1-propanethiol, polyether functionalized mercaptosilane or thioester functionalized alkoxysilane and (I); and (5) reducing the rolling resistance of tires, comprising adding a non-or partially cross linked rubber mixture, which is used as a starting material for at least portions of the tire to (I) and then vulcanizing the rubber mixture. [Image].


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    Title :

    Polysulfide mixtures, method for the production thereof, and use of the polysulfide mixtures in rubber mixtures



    Publication date :

    2017-05-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS , Acyclische oder carbocyclische Verbindungen / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08J Verarbeitung , WORKING-UP / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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