Modified conjugated diene polymer, modified rubber composition comprising same, and method for producing modified conjugated diene polymer
US9725526B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2015 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Jul 20, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2500/21
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are a method of preparing a modified conjugated diene-based polymer, a modified conjugated diene-based polymer prepared thereby, and a rubber composition and a tire, including the modified conjugated diene-based polymer. The method of preparing the modified conjugated diene-based polymer includes (a) polymerizing a vinyl aromatic monomer and a conjugated diene monomer using an organo-alkali metal compound in the presence of a hydrocarbon solvent, thus forming an active polymer having an alkali metal end and (b) coupling or linking the active polymer having the alkali metal end with a compound represented by Chemical Formula 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.