Method of preparing an anionic polymerization initiator

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing

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502157, 526173, 526180, 260665R, C08F 448

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052388930

ABSTRACT:
A vulcanizable elastomeric compound and products such as pneumatic tires and the like, are formed from a functionalized polymer having a functional group derived from the polymerization initiator. The polymerization initiator is selected from the group consisting of ##STR1## where R.sup.1 and R.sup.2 are the same or different and are selected from the group consisting of alkyls having from 1 to about 12 carbon atoms, cycloalkyls having from 3 to about 14 carbon atoms, and aryls having from 6 to about 20 carbon atoms. Methods of the present invention include preparing the initiator, preparing functionalized polymers and, reducing the hysteresis of vulcanizable elastomeric compounds.

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