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

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

1981-04-07

1982-07-27

Lee, Lester L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

528125, 528128, 528172, 528183, 528184, 528185, 528210, 528211, 528220, 528226, 528229, 528339, 528344, C08G 6944

Patent

active

043416888

ABSTRACT:
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) dioxyanthraquinone moiety, (b) p-oxybenzoyl moiety, (c) dicarboxyl moiety, as defined, and (d) aromatic moiety capable of forming an amide linkage in the polymer, in the proportions indicated. Preferably, the 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.degree. C., preferably below approximately 350.degree. C. The poly(ester-amide) of the present invention is preferably formed by a melt polymerization technique.

REFERENCES:
patent: 3859251 (1975-01-01), Kuhfuss et al.
patent: 4182842 (1980-01-01), Jackson et al.
patent: 4272625 (1981-06-01), McIntyre et al.

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