Patent ID: 6770587
Filing Date: 2004-08-03
Classification: C07F,C08C,C08F

Abstract:
A hydrocarbon composition comprising one or more protected functionalized chain extended anionic polymerization initiators of the formulaM-Qn-Z-T-(A-R1R2R3)m or of the formula and at least one additional initiator comprises one or more non-chain extended compounds of the formulaM-Z-N-(A-R1R2R3)m or wherein:M is lithium; Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of at least one conjugated diene hydrocarbons or mixtures thereof; Z is a straight chain hydrocarbon connecting group which contains 3-25 carbon atoms; T is oxygen; A is carbon; (A-R1R2R3)m is a protecting group and R1, R2, and R3 are alkyl; n is >0 and <1; and m is 1.