Production process for polyvinyl ether and catalyst used for the process
US6235859A · kind A · utility
2Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Jun 1, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J21/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided are an industrially advantageous process for producing a polymer of polyvinyl ether at a temperature of not lower than a room temperature for short time, and a catalyst used for the process. The above process is characterized by using an acid clay mineral subjected to acid treatment as a catalyst to polymerize vinyl ether.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.