A rubber composition is disclosed comprising (A) an unsaturated rubber, (B) silica, (C) a silica coupling agent, (D) sulfur, (E) carbon black, and (F) an accelerator of the structural formula:wherein R1 and R2 can be the same or different and represent organyl radicals, wherein R1 and R2 contain a total of at least 2 carbon atoms, wherein R1 and R2 can join together to form a cyclic structure, and wherein R3 represents an organyl radical containing at least 6 carbon atoms. Also, a rubber article such as a tire is disclosed comprising a cured unsaturated rubber wherein the cured unsaturated rubber is crosslinked with monosulfide groups, wherein the cured unsaturated rubber has pendent -S-R3 groups, wherein R3 represents an organyl radical containing at least 6 carbon atoms, and wherein the unsaturated rubber includes a silica.
ACCELERATOR FOR THE VULCANIZATION OF RUBBERY POLYMERS
BESCHLEUNIGER FÜR DIE VULKANISATION VON GUMMIARTIGEN POLYMEREN
ACCÉLÉRATEUR DE VULCANISATION DE POLYMÈRES CAOUTCHOUTEUX
2021-08-25
Patent
Elektronische Ressource
Englisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / 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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