Provided are: an organopolysiloxane capable of achieving intended low fuel consumption properties and significantly reducing hysteresis loss in the cured product of a rubber composition during tire production; a rubber compounding agent comprising said organopolysiloxane; a rubber composition obtained by blending said rubber compounding agent; and a tire formed using said rubber composition. The organopolysiloxane, which is represented by average compositional formula (1), is characterized in: containing an organic group with a sulfide group; and the sulfide equivalents being 1,000 g/mol or less. (A) a (B) b (C) c (R 1 ) d SiO (4-2a-b-c-d)/2 (1) (In the formula, A is a sulfide group-containing divalent organic group, B is a C5 to C10 monovalent hydrocarbon group, C is a hydrolyzable group and/or a hydroxyl group, R 1 is a C1 to C4 monovalent hydrocarbon group, and for a, b, c and d, 0 < 2a < 1, 0 < b < 1, 0 < c < 3, 0 ¤ d < 2, and 0 < 2a+b+c+d < 4.)
ORGANOPOLYSILOXANE, RUBBER COMPOUNDING AGENT, RUBBER COMPOSITION, AND TIRE
ORGANOPOLYSILOXAN, GUMMIAUFBEREITUNGSMITTEL, KAUTSCHUKZUSAMMENSETZUNG UND REIFEN
ORGANOPOLYSILOXANE, AGENT DE COMPOUNDAGE DE CAOUTCHOUC, COMPOSITION DE CAOUTCHOUC ET PNEU
19.09.2018
Patent
Elektronische Ressource
Englisch
IPC: | C07F Acyclische, carbocyclische oder heterocyclische Verbindungen, die andere Elemente als Kohlenstoff, Wasserstoff, Halogen, Sauerstoff, Stickstoff, Schwefel, Selen oder Tellur enthalten , ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM / B60C VEHICLE TYRES , Fahrzeugreifen / 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 / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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