Methods of making siloxy-amine functionalized rubbery polymers and uses thereof in rubber compositions for tires

2X131 The invention includes a siloxy-amine functionalized rubbery polymer, which exhibits good reinforcing characteristics and filler dispersing effect, a method for making, and a rubber composition including the same. In one embodiment, a process for manufacturing includes polymerizing a conjugate...

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Hauptverfasser: Halasa, Adel Farhan, Constantini, Nicola, Schmitz, Frank
Format: Patent
Sprache:eng
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Zusammenfassung:2X131 The invention includes a siloxy-amine functionalized rubbery polymer, which exhibits good reinforcing characteristics and filler dispersing effect, a method for making, and a rubber composition including the same. In one embodiment, a process for manufacturing includes polymerizing a conjugated diene monomer using an organolithium compound as an initiator in a hydrocarbon solvent. Next, an active terminal end of the polymer is reacted with a functionalized terminating agent represented by: RN-(CH)Si(OR),  Formula (I) wherein R, in combination with the nitrogen (N) atom, is a substituted or unsubstituted heterocyclic aromatic or non-aromatic compound which includes a ring structure with one or more nitrogen atoms as part of the ring; Rrepresents a group having 1 to 18 carbon atoms selected from an alkyl, a cycloalkyl, an allyl, or an aryl; and X is an integer from 1 to 20.