Cationic polymerization of 1-olefins
US4605808A · kind A · utility
126Cited by
15References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1984 |
| Grant date | Aug 12, 1986 |
| Priority date | — |
| Expiry date | Oct 30, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a process for producing polyisobutene which has at least 70% of its unsaturation in the terminal position. The process uses a complex of boron trifluoride and alcohol as catalyst and a contact time of at least 8 minutes. The feature of the process is its ability to use longer contact times than used hitherto thereby facilitating its commercial operation and improving the control of such an operation. The high terminal unsaturation improves the reactivity of the polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.