PROCESS FOR PRODUCING MODIFIED CONJUGATED DIENE-BASED POLYMER, MODIFIED CONJUGATED DIENE-BASED POLYMER, AND POLYMER COMPOSITION
申请人:ITO Mana
公开号:US20120252966A1
公开(公告)日:2012-10-04
An object of the present invention is to provide a process for producing a modified conjugated diene-based polymer suitable for preparing a polymer composition excellent in the fuel cost saving effect. The present invention provides a process for producing a modified conjugated diene-based polymer, comprising reacting a conjugated diene-based polymer having a monomer unit based on a conjugated diene compound and a monomer unit based on a compound represented by the following formula (1), with an organometallic compound, and reacting the resulting reaction product with a hydrocarbyloxysilane compound:
wherein R
11
, R
12
, R
13
, R
14
and R
15
each represent a hydrogen atom or an alkyl group, at least one of R
11
, R
12
, R
13
, R
14
and R
15
is an alkyl group, R
16
, R
17
and R
18
each represent a hydrogen atom or a hydrocarbyl group, R
19
represents a hydrocarbylene group, and k represents 0 or 1.