Reduction of acidity of polyesters by melt reaction endcapping

Details Reduction of acidity of polyesters by melt reaction endcapping Reduction of acidity of polyesters by melt reaction endcapping

C - Chemistry, Metallurgy

08

G

402/215

C08G 63/91 (2006.01) C08G 63/20 (2006.01) B29C 47/00 (2006.01)

Patent

CA 2024538

A method for the melt reaction of polyesters, particularly polyethylene terephthalate, with an endcapping agent which reacts with terminal carboxyl groups of the polyester. The endcapping agents are selected from the group consisting of 2-hydrocarbyl substituted-2-oxazolines, alkylacetylacetonates or oxiranes.

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