Butyl rubber with new sequence distribution
US10626201B2 · kind B2 · utility
0Cited by
10References
19Claims
0Family size
Inventor
Key dates
| Filing date | Apr 30, 2015 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Apr 30, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2810/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to an efficient polymerization process and its use to produce novel copolymers with a specific microstructure. In particular, the invention relates to butyl rubbers with novel microstructure, preferably those obtainable by copolymerization of monomer mixtures comprising isobutylene and isoprene. In a further aspect the invention relates to halogenated copolymers obtainable from such novel copolymers by halogenation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.