Patent ID: 6630552
Filing Date: 2003-10-07
Classification: C08F

Abstract:
A process for synthesizing a rubbery polymer that comprises copolymerizing at least one conjugated diolefin monomer and a functionalized monomer in an organic solvent at a temperature which is within the range of 20Â° C. to about 100Â° C., wherein the polymerization is initiated with an anionic initiator, and wherein the functionalized monomer has a structural formula selected from the group consisting of wherein R represents an alkyl group containing from 1 to about 10 carbon atoms or a hydrogen atom, and wherein R1 and R2 can be the same or different and represent hydrogen atoms or a moiety selected from the group consisting of wherein Z represents a nitrogen containing heterocyclic compound, wherein R4 represents a member selected from the group consisting of alkyl groups containing from 1 to about 10 carbon atoms, aryl groups, and allyl groups, and wherein x represents an integer from 1 to about 10, with the proviso that R1 and R2 can not both be hydrogen atoms; wherein n represents an integer from 1 to about 10 and wherein m represents an integer from 1 to about 10, with the proviso that the sum of n and m is at least 4; wherein n represents an integer from 1 to about 10, and wherein R and Râ€² can be the same or different and represent alkyl groups containing from 1 to about 10 carbon atoms; wherein n represents an integer from 1 to about 10 and wherein m represents an integer from 4 to about 10; wherein x represents an integer from 1 to about 10, wherein n represents an integer from 1 to about 10 and wherein m represents an integer from 1 to about 10, with the proviso that the sum of n and m is at least 4; wherein R represents a hydrogen atom or an alkyl group containing from 1 to about 10 carbon atoms, wherein n represents an integer from 1 to about 10, and wherein m represents an integer from 1 to about 10, with the proviso that the sum of n and m is at least 4; and wherein n represents an integer from 1 to about 10, wherein m represents an integer from 1 to about 10, wherein x represents an integer from 1 to about 10, and wherein y represents an integer from 1 to about 10.