Melt processable poly(ester-amide) capable of forming an anisotropic melt containing an aromatic moiety capable of forming an amide linkage
AssigneeHoechst Celanese Corporation
InventorsCherylyn Lee, Larry F. Charbonneau
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Abstract
A melt processable poly(ester-amide) which is capable of forming an anisotropic melt phase is provided. A poly(ester-amide) of the present invention may have recurring units of: (a) 4-hydroxybenzoyl moiety, (b) 6-oxy-2-naphthoyl moiety, (c) 4,4'-biphenol moiety, (d) terephthaloyl moiety, and (e) an aromatic moiety capable of forming an amide linkage in the proportions indicated. Preferably, the moiety capable of forming an amide linkage is derived from p-aminophenol, p-phenylenediamine, N-acetyl-p-aminophenol, etc. The resulting poly(ester-amide) is capable of undergoing melt-processing in the temperature range of from about 300.degree. to about 400.degree. C.
Claims22
A melt processable poly(ester-amide) capable of forming an anisotropic melt phase at a temperature below about 400.degree. C. consisting of recurring moieties I, II, III, IV and V wherein:
- ##STR3## wherein Ar is a divalent moiety containing at least one aromatic ring, Y and Z are divalent radicals and are the same or different and include at least one member selected from the group consisting of NH or NR where R is a 1-6 carbon containing alkyl moiety or an aryl moiety;
- and V is the residue of an aromatic dioyl precursor;
- and wherein said poly(ester-amide) consists of from about 1 to about 15 mole percent of moiety I, from about 20 to bout 70 mole percent of moiety II, from about 5 to about 40 mole percent of moiety III, from about 1 to about 6.5 mole percent of moiety IV, and from about 5 to about 40 mole percent of moiety V.
A melt processable poly(ester-amide)capable of forming an anisotropic melt phase at a temperature below approximately 400.degree. C. consisting of recurring moieties I, II, III, IV and V wherein:
- ##STR5## wherein Ar is a divalent moiety containing at least one aromatic ring, Y and Z are divalent radicals and are the same or different and include at least one member selected from the group consisting of NH or NR where R is a 1-6 carbon containing alkyl moiety or an aryl moiety;
- and V is the residue of an aromatic dioyl precursor or mixtures of terephthaloyl with other aromatic dioyls;
- and wherein said poly(ester-amide) consists of moiety I in amounts of from about 2.5 to about 10 mole percent, moiety II in amounts of from about 20 to about 70 mole percent, moiety III in amounts of from about 5 to about 25 mole percent, moiety IV in amounts of from about 1.0 to about 6.5 mole percent, and moiety V in amounts of from about 10 to about 25 mole percent.
A fiber prepared from a melt processable poly(ester-amide) capable of forming an anisotropic melt phase at a temperature of below approximately 400.degree. C. consisting of recurring moieties, I, II, III, IV and V wherein:
- ##STR6## wherein Ar is a divalent moiety containing at least one aromatic ring, Y and Z are divalent radicals and are the same or different and include at least one member selected from the group consisting of NH or NR where R is a 1-6 carbon containing alkyl moiety or an aryl moiety;
- and V is the residue of an aromatic dioyl precursor or mixtures of terephthaloyl with other aromatic dioyls, wherein said poly(ester-amide) consists of moiety I in amounts of from about 1 to about 15 mole percent, moiety II in amounts from about 20 to about 70 mole percent, moiety III in amounts of from about 5 to about 40 mole percent, moiety IV in amounts of from about 1 to about 20 mole percent, and moiety V in amounts of from about 5 to about 40 mole percent, and wherein the fiber exhibits a tenacity of at least about 30 g/d, a modulus of at least about 1000 g/d, and an elongation of at least about 2.5 percent.
An extruded article prepared from a melt processable poly(ester-amide) capable of forming an anisotropic melt phase at a temperature of below approximately 400.degree. C. consisting of recurring moieties I, II, III, IV and V wherein:
- ##STR7## wherein Ar is a divalent moiety containing at least one aromatic ring, Y and Z are divalent radicals and are the same or different and include at least one member selected from the group consisting of NH or NR where R is a 1-6 carbon containing alkyl moiety or an aryl moiety, and V is the residue of an aromatic dioyl precursor or mixtures of terephthaloyl with other aromatic dioyls, and wherein said poly-(ester-amide) consists of moiety I in amounts of from about 1 to about 15 mole percent, moiety II in amounts of from about 20 to about 70 mole percent, moiety III in amounts of from about 5 to about 40 mole percent, moiety IV in amounts of from about 1 to about 20 mole percent and moiety V in amounts of from about 5 to about 40 mole percent.
Dependencies are inferred from the claim text.