Process for polymerizing cationically polymerizable monomers
US6939933B2 · kind B2 · utility
1Cited by
7References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2001 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Feb 14, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a new catalyst system that improves the heat transfer capability of a butyl reactor slurry process system in the production of random copolymers of one or more isoolefin monomers and one or more conjugated diene monomers in continuous slurry polymerization processes. The process is carried out in an anhydrous polymerization system containing a mixture of the monomers in a polar diluent along with a Lewis acid and a C5 or greater initiator having a tertiary halide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.