Process for brominating butadieneninyl aromatic copolymers
US8202945B2 · kind B2 · utility
1Cited by
9References
15Claims
0Family size
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Key dates
| Filing date | Aug 14, 2007 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Jul 12, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Butadiene copolymers are brominated using certain quaternary ammonium tribromides as the brominating agent. The bromination process proceeds easily under mild conditions, and produces a brominated product that has excellent thermal stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.