Melt devolatilization extrusion processs
US9464175B2 · kind B2 · utility
0Cited by
8References
19Claims
0Family size
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Key dates
| Filing date | Sep 14, 2012 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Mar 23, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2425/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Brominated organic polymer solutions from a bromination reaction are devolatilized in a devolatilizing extruder. A starting organic polymer is brominated in solution to form a brominated polymer solution. This solution is combined with a second thermoplastic polymer to form a concentrated solution. The solvent and other volatile compounds are removed from the concentrated solution in a devolatilizing extruder to form a devolatilized polymer blend.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.