The present invention is directed to a functionalized elastomer comprising the reaction product of a living anionic elastomeric polymer and a polymerization terminator of formula Iwhere n is an integer from 1 to 3;X is a tetravalent organic group selected from a hydrocarbyl group of formula CmH2m-2 where mis an integer from 1 to 10, a group of formula IIwhere R3 is C1 to C10 alkane diyl, and the group of phenyl diyl;R1 and R2 are independently selected from C1 to C10 alkyl, and a group of formula IIIwhere R4, R5 are independently C1 to C10 alkyl, and R6 is C1 to C10 alkanediyl;or R1 and R2 taken together with their common Si atom form a five-membered heterocyclic ring selected from formulas IV and Vwhere R7 is from C1 to C10 alkyl.
Functionalized polymer, rubber composition and pneumatic tire
2022-06-07
Patent
Electronic Resource
English
IPC: | C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / 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 |
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