Method for preparing modified conjugate diene polymer
US10730968B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2016 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Feb 21, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/86
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a method of preparing a modified conjugated diene-based polymer, and more particularly, to a method of preparing a modified conjugated diene-based polymer, including: (S1) preparing an active polymer with an organic metal bonded thereto by polymerizing a conjugated diene-based monomer in a hydrocarbon solvent in the presence of an organometallic compound; and (S2) mixing the active polymer prepared according to process S1 with a modifier, wherein the mixing of process S2 is performed at a Reynolds number of 20 or less for 1 minute or more, the Reynolds number being maintained within a range of ±5 of a Reynolds number when the modifier is added (wherein the range is between greater than 0 to 20 or less).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.