Segmented thermoplastic copolyesters

C - Chemistry – Metallurgy – 07 – D

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402/166, 260/305

C07D 233/72 (2006.01)

Patent

CA 1117950

ABSTRACT OF THE DISCLOSURE This invention relates to polyester polyether segmented copolymers wherein the polymer segment contains a certain a- mount of heterocyclic ring repeat units, for example, the hydan- toin ring. These polyester polyether segmented copolymers are useful in the production of fibers, films or other extrusion mol- dings where elastomeric properties are desirable.

351372

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