초록 ▼

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-dicarboxynaphthalene moiety, (c) aromatic moiety capable of forming an a

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-dicarboxynaphthalene moiety, (c) aromatic moiety capable of forming an amide linkage in the polymer, and, optionally, (d) p-dioxyphenyl moiety and (e) other carbocyclic dicarboxyl moiety, in the proportions indicated. Preferably, the aromatic moiety capable of forming an amide linkage is derived from p-aminophenol or p-phenylenediamine. The carbocyclic dicarboxyl moiety is preferably aromatic. 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.

대표청구항 ▼

A melt processable poly(ester-amide) capable of forming an anisotropic melt phase at a temperature below approximately 400°C. consisting essentially of recurring moieties I, II, III, and, optionally, IV and V wherein: I is [Figure] II is [Figure] III is －Y－Ar－Z－, where Ar is a divalent radical compr

A melt processable poly(ester-amide) capable of forming an anisotropic melt phase at a temperature below approximately 400°C. consisting essentially of recurring moieties I, II, III, and, optionally, IV and V wherein: I is [Figure] II is [Figure] III is －Y－Ar－Z－, where Ar is a divalent radical comprising at least one aromatic ring, Y is O, NH, or NR, and Z is NH or NR, where R is an alkyl group of 1 to 6 carbon atoms or an aryl group; IV is [Figure] V is [Figure] where A is a divalent carbocyclic radical other than naphthylene, wherein at least some of the hydrogen atoms present upon the rings optionally may be replaced by substitution selected from the group consisting of an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms, halogen, phenyl, and mixtures thereof, and wherein moiety I is present in a concentration within the range of approximately 20 to 70 mole percent, moiety II is present in a concentration within the range of approximately 5 to 35 mole percent, moiety III is present in a concentration within the range of approximately 5 to 35 mole percent, moiety IV is present in a concentration within the range of approximately 0 to 35 mole percent, and moiety V is present in a concentration within the range of approximately 0 to 30 mole percent, and with said poly(ester-amide) being wholly aromatic with the possible exception of said carbocyclic moiety V in the sense that each moiety present contributes at least one aromatic ring.