Poly(ester-amide) capable of forming an anisotropic melt...

Details Poly(ester-amide) capable of forming an anisotropic melt... Poly(ester-amide) capable of forming an anisotropic melt...

C - Chemistry, Metallurgy

08

G

402/185, 400/762

C08G 69/44 (2006.01) C08L 77/12 (2006.01)

Patent

CA 1169191

ABSTRACT OF THE DISCLOSURE A melt processable poly(ester-amide) which is capable of forming an anisotropic melt phase is provided. The poly(ester-amide) of the present invention consists essentially of the recurring units (a) p-oxybenzoyl moiety, (b) 2,6-dioxynaphthylene moiety, (c) carbocyclic dicarboxyl moiety, (d) aromatic moiety capable of forming an amide linkage in the polymer, and optionally, (e) p-dioxyaryl moiety, in the proportions indicated. Preferably, the aromatic moiety capable of forming an amide linkage is derived from p-aminophenol or p-phenylenediamine. The resulting poly(ester-amide) exhibits a melting temperature below approximately 400°C., preferably below approximately 350°C. The poly(ester-amide) of the present invention is preferably formed by a melt polymerization technique.

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