Anionic polymerization process, and process for producing a polymer by the anionic polymerization process
US6555637B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2000 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Oct 20, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/48
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
In anionic polymerization using an anionic polymerization initiator, a tertiary organoaluminum compound (A) having in the molecule thereof a chemical structure represented by a general formula: Al—O—Ar wherein Ar represents an aromatic ring, and at least one Lewis base (B) selected from the group consisting of a tertiary polyamine compound, are caused to be present in the polymerization system. In this way, the polar monomer can be polymerized with a high polymerization initiation efficiency and a high living polymerization property and at a high polymerization rate even if the used polymerization initiator is suitable for industrial use, and a relatively mild cooling condition or a temperature condition near room temperature is adopted as a polymerization temperature condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.