C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 6/10 (2006.01) C08F 6/00 (2006.01) C08F 6/24 (2006.01)
Patent
CA 2091128
process for removing volatile constituents from a polymer dispersion or solution by stripping with a carrier gas is disclosed. The carrier gas being, in the case of a polymer solution, the vapor of the solvent used for the polymer solution as an inert gas saturated with said vapor. In the case of a polymer dispersion, the vapor of the dispersing medium used for the polymer dispersion or an inert gas saturated with said vapor. In both processes certain amount of the carrier gas is passed through the polymer dispersion or solution, the volatile constituents taken up the carrier gas on passage through the polymer dispersion or solution are then removed from the carrier gas in such a manner that the energy content of the carrier gas remains essentially unchanged. The carrier gas thus obtained is then reused for further removal of volatile constituents from the same polymer dispersion or solution by stripping.
Bapat Ajay V.
Taylor Michael A.
Basf Aktiengesellschaft
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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