Method for producing conjugated diene rubber
AssigneesZeon Corporation, Sumitomo Chemical Company, Limited, Zs Elastomers Co., Ltd.
InventorsTakuro Sakurai, Takashi Iizuka, Mana Fujii, Hisakatsu Hama
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Abstract
A method for producing conjugated diene rubber is provided, including: a first step of obtaining a conjugated diene polymer chain having an active end by polymerizing a monomer comprising a conjugated diene compound and a vinyl compound having a functional group interactive with silica using a polymerization initiator in an inert solvent; a second step of reacting a siloxane compound with the active end of the conjugated diene polymer chain having the active end; and a third step of reacting a hydrocarbyloxysilane compound with the conjugated diene polymer chain with which the siloxane compound has been reacted that is obtained in the second step.
Claims15
A method for producing a conjugated diene rubber, comprising:
- a first step of obtaining a conjugated diene polymer chain having an active end by polymerizing a monomer comprising a conjugated diene compound and a vinyl compound having a functional group interactive with silica using a polymerization initiator in an inert solvent;
- a second step of reacting a siloxane compound with the active end of the conjugated diene polymer chain having the active end;
- and
- a third step of reacting a hydrocarbyloxysilane compound with the conjugated diene polymer chain with which the siloxane compound is reacted that is obtained in the second step,
- wherein the functional group interactive with silica is at least one selected from a group consisting of a nitrogen atom-containing functional group, a silicon atom-containing functional group, and an oxygen atom-containing functional group.
Dependencies are inferred from the claim text.