Endcapped polyester

Details Endcapped polyester Endcapped polyester

C - Chemistry, Metallurgy

08

G

402/187, 402/215

C08G 63/91 (2006.01) C08G 63/20 (2006.01)

Patent

CA 1121545

ENDCAPPED POLYESTERS ABSTRACT OF THE DISCLOSURE The polyesters are endcapped by reacting them generally with substituted benzoyl-lactams or substituted benzoyl-phthalimides at a temperature usually above the melting point of the polyester to form a benzoyl end group. Such endcapped polymers have improved properties such as thermal-oxidative aging, molecular weight retention, tensile strength retention, and improved stability.

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