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The use of a twin-screw extruder to emulsify polymers in the manner described above is referred to as solvent-free extrusion emulsification (SFEE) and was first patented by Abe et al.
The purpose of this article is to better understand this mechanism of water dispersion into a high viscosity polymer melt, which is prior to phase inversion in SFEE; emulsions will not be produced in this work as a result of its focus but presented in a future paper on SFEE.
Supercritical Fluid Extraction of Emulsions (SFEE): The application of SCFs in particle technology with emulsions appears to be a natural decision to avoid problems from each method separately.
Liquid carbon dioxide with purity of 99.9% used for SFEE process was purchased from Praxair Gas Co.
Other features of this year's show include a SFEE silent auction, a manufacturer representative lounge and an international lounge.
The collection is available in sfees 10 to 20 at Barkers in Northallerton' Binns in Darlington and Middlesbrough' House of Fraser, MetroCentre, Gateshead' Joplings, Sunderland' Robbs, Hexham' John Lewis and Fenwick in Newcastle, www.countrycasuals.co.uk.
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