Method of preparing conjugated diene-based polymer and apparatus for preparing conjugated diene-based polymer
US11299565B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2019 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Jan 26, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D3/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of preparing a conjugated diene-based polymer is provided including: a step of polymerizing a first conjugated diene-based monomer in solution in a first polymerization reactor to prepare a first polymer solution including a first conjugated diene-based polymer; a step of polymerizing a second conjugated diene-based monomer in solution in a second polymerization reactor to prepare a second polymer solution including a second conjugated diene-based polymer; a step of supplying a first fluid separated from the first polymer solution to a first purification unit and purifying the first fluid; and a step of supplying a second fluid separated from the second polymer solution to a second purification unit and purifying the second fluid. An apparatus for preparing a conjugated diene-based polymer is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.