Methods of making siloxy-amine functionalized rubbery...

Details Methods of making siloxy-amine functionalized rubbery... Methods of making siloxy-amine functionalized rubbery...

2008-09-10

2011-12-06

Choi, Ling (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S342000, C524S492000, C524S495000

Reexamination Certificate

active

08071689

ABSTRACT:
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:in-line-formulae description="In-line Formulae" end="lead"?RN—(CH2)XSi(OR1)3,  Formula (I)in-line-formulae description="In-line Formulae" end="tail"?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; R1represents 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.

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