Patent ID: 8598274
Filing Date: 2013-12-03
Classification: C08C,C08F,C08L

Abstract:
1. A method for producing a modified conjugated diene-based polymer, wherein the method comprises: a first step of producing a conjugated diene-based polymer by polymerizing monomers comprising a conjugated diene compound in a hydrocarbon solvent using an organoalkali metal compound and a second step of adding (I) a compound having a carbonyl group and a substituted amino group and (II) a compound represented by Formula (II-A) to a hydrocarbon solvent containing the conjugated diene-based polymer: wherein k, l and m are each an integer of 1 to 8; R 1 , R 2 , R 3 , R 11 , R 12 , R 13 , R 14 , R 15 , and R 16 are each independently a hydrocarbyloxy group or a hydrocarbyl group; at least one group selected from among R 1 , R 2 and R 3 is a hydrocarbyloxy group; at least one group selected from among R 11 , R 12 and R 13 is a hydrocarbyloxy group; and at least one group selected from among R 14 , R 15 and R 16 is a hydrocarbyloxy group.