Polyester polymer recovery

Details Polyester polymer recovery Polyester polymer recovery

C - Chemistry, Metallurgy

08

J

18/599, 403/8

C08J 11/04 (2006.01) C08J 11/08 (2006.01)

Patent

CA 1052048

ABSTRACT Polyester fibers are dissolved and solid linear polyester polymer recovered for use in the production of new linear polyester products, particularly polyester fibers or filaments, by the process of dissolving the fibers in a non-depolymerizing dissolution solvent for polyester characterized by inclusion of carbocyclic rings in its structural formula under dissolution conditions for polyester polymer; thereafter quenching the polyester solution; and separating the solid polyester from the solution.

246318

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