METHOD FOR PRODUCING POLYMER

专利名称：METHOD FOR PRODUCING POLYMER发明人：ARAKI, YOSHIFUMI,SASAYA, EIJI,SUZUKI,

TAKUYA

申请号：EP14740721申请日：20140108公开号：EP2947101A4公开日：20160120

摘要：A method for producing a polymer has: a polymerization step of polymerizingat least a conjugated diene monomer in a hydrocarbon solvent using an organolithiumcompound as a polymerization initiator, and obtaining a polymer; and, following steps (1)to (4), successively performing after the polymerization step: (1) a step of mixing an acidand water of 20 to 300 parts by mass into the solution containing the polymer of 100parts by mass, (2) a step of adjusting an amount of the water to 10 parts by mass or lessbased on 100 parts by mass of the solution containing the polymer, (3) a step of adding acarbon oxide gas and/or a compound to be decarboxylated to the solution containingthe polymer, and (4) a step of removing a solvent from the solution containing thepolymer until a concentration of the polymer reaches 95 mass% or more.

申请人：ASAHI KASEI CHEMICALS CORPORATION

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