Hydroxyaryl functionalized polymers
AssigneeBridgestone Corporation
InventorsYuan-Yong Yan, Zengquan Qin, Xiao-Dong Pan
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AssigneeBridgestone Corporation
InventorsYuan-Yong Yan, Zengquan Qin, Xiao-Dong Pan
Estimating the term…
A functionalized polymer includes the reaction product of a reactive polymer and a compound that includes an aryl group having at least one directly bonded OGp substituent, where Gp is a protecting group, and a substituent (Q) which is free of active hydrogen atoms and which is, or connects to the aryl group through, a moiety that includes a carbon-to-nitrogen multiple bond. The polymer can be provided from a solution that includes one or more types of ethylenically unsaturated monomers which include at least one type of polyene, particularly one or more conjugated dienes in certain embodiments. An active terminus of the resulting reactive polymer can react with the Q substituent of the compound so as to provide a polymer having as a terminal functionality the radical of a compound that includes an aryl group having at least one directly bonded OGp substituent.
A process of providing a functionalized polymer comprising allowing a terminally active polymer to react with a compound comprising an aryl group that comprises at least one directly bonded OGp substituent, where Gp is a protecting group selected from trihydrocarbylsilyl, benzyl, t-butyl, alkoxyalkyl, tetrahydropyranyl, allyl, sulfonamide, and pivalates, and a second type of substituent,
Dependencies are inferred from the claim text.