Supercritical mixed-solvent separation of polymer mixtures

Details Supercritical mixed-solvent separation of polymer mixtures Supercritical mixed-solvent separation of polymer mixtures

C - Chemistry, Metallurgy

07

C

C07C 7/10 (2006.01) C07C 11/02 (2006.01) C08F 6/04 (2006.01) C08F 6/12 (2006.01)

Patent

CA 2054909

ABSTRACT OF THE DISCLOSURE A supercritical separation process is proposed for polymers, utilizing mixed solvents. Such a process can be used to remove light end, or heavy end, or generate bulk fractions of low polydispersity. Three modes of operation are proposed: increasing solvent capacity, decreasing solvent capacity, and single-vessel multistage separation.

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