C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
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
Johnson David A.
Wagener Kenneth B.
Akzona Incorporated
Swabey Ogilvy Renault
LandOfFree
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