Melt processable poly(ester amide) capable of forming an anisotropic melt containing an aromatic moiety capable of forming an amide linkage

• US 5,508,374 A
• Filed: 07/07/1995
• Issued: 04/16/1996
• Est. Priority Date: 04/19/1991
• Status: Expired due to Term

• Current Assignee: CNA Holdings Incorporated (Celanese Corporation)
• Original Assignee: Hoechst Celanese Corporation (Sanofi )
• Inventors: Charbonneau, Larry F., Lee, Cherylyn
• Primary Examiner(s): Seidleck, James J.
• Assistant Examiner(s): BOYKIN, TERRESSA M
• Application Number:
  US08/487,663
• Time in Patent Office: 284 Days
• Field of Search: 528/184, 528/176, 528/183, 528/185, 528/190, 528/193, 524/602
• US Class Current: 528/184
• CPC Class Codes: C08G 69/44 Polyester-amides

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° to about 400° C.

Claims

1. A polymeric composition comprising:

(a) a melt processable poly(ester-amide) capable of forming an anisotropic melt phase at a temperature below about 400°

C. consisting essentially of recurring moieties I, II, III, IV, and V wherein;

I is ##STR5## II is ##STR6## III is ##STR7## IV is where Ar is a divalent radical comprising 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(esteramide) contains from about 1 to about 15 mole percent of moiety I, from about 20 to about 70 mole percent of moiety II, from about 5 to about 40 mole percent of moiety III, from about 1 to about 20 mole percent of moiety IV, and from about 5 to about 40 mole percent of moiety V; and

(b) about 1% to about 50% by weight of a solid filler and/or reinforcing agent.

2. The polymeric composition according to claim 1, wherein said polymeric composition comprises about 10% to about 30% by weight of said solid filler and/or reinforcing agent.

3. The polymeric composition according to claim 1 wherein said solid filler and/or reinforcing agent is selected from the group consisting of calcium silicate, silica, clays, talc, mica, polytetrafluoroethylene, graphite, alumina trihydrate, sodium aluminum carbonate, barium ferrite, wollastonite, glass fiber, graphitic carbon fiber, amorphous carbon fiber, synthetic polymeric fiber, alumina fiber, aluminum silicate fiber, aluminum oxide fiber, titanium fiber, magnesium fiber, rock wool fiber, steel fiber, tungsten fiber, wollastonite fiber having an aspect ratio greater than 3 to 1, and mixtures thereof.

4. The polymeric composition according to claim 1, wherein said solid filler and/or reinforcing agent is glass fiber.

5. The polymeric composition according to claim 1, wherein moiety IV is ##STR8##

6. The polymeric composition according to claim 5, wherein moiety IV is derived from p-aminophenol or N-acetyl-p-aminophenol.

7. The polymeric composition according to claim 5, wherein moiety IV is derived from N-acetyl-p-aminophenol.

8. The polymeric composition according to claim 1, wherein moiety V is a terephthaloyl moiety.

9. The polymeric composition according to claim 5, wherein moiety V is terephthaloyl.

10. The polymeric composition according to claim 1 wherein moiety V is selected from the group consisting of isophthaloyl, terephthaloyl, and mixtures thereof.

11. The polymeric composition according to claim 1, said composition forming an anisotropic melt phase at a temperature of about 350°

C.

12. The polymeric composition according to claim 1, which is capable of undergoing melt-processing in the temperature range of from about 300°

C. to about 400°

C.

13. The polymeric composition according to claim 1, wherein the aromatic rings of moieties I, II, III, IV, and V are substantially free of ring substitution.

14. An injection molded article comprising the polymeric composition according to claim 1.

15. A shaped article comprising the polymeric composition according to claim 1.

16. The polymeric composition according to claim 1, wherein said poly(esteramide) exhibits an inherent viscosity in the range of about 1.0 to 12.0 dl/g when dissolved at a concentration of 0.1 percent by weight in pentafluorophenol at 60°

C.

17. The polymeric composition according to claim 1, wherein said melt processable poly(ester-amide) exhibits a melt viscosity in the range of from about 50 to 1500 poise at a shear rate of 10³ sec-1 measured at 365°

C. in a capillary rheometer.

18. A polymeric composition comprising:

(a) 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, IV and V wherein;

I is ##STR9## II is ##STR10## III is ##STR11## IV is Y wherein Ar is a divalent moiety containing at least one aromatic ring, Y &

Z are divalent radicals, 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 di-oyl precursor or mixtures of terephthaloyl with other aromatic di-oyls; and

wherein moiety I is present in amounts of from about 2.5 to about 10 mole percent, moiety II is present in amounts from about 20 to about 70 mole percent, moiety III is present in amounts of from about 5 to 25 mole percent, moiety IV is present in amounts of from about 2.5 to about 15 mole percent, and moiety V is present in amounts from about 10 to about 25 mole percent; and

(b) about 1% to about 50% by weight of a solid filler and/or reinforcing agent.

19. The polymeric composition according to claim 18, wherein moiety V is terephthaloyl and moiety IV is the residue of p-aminophenol.

20. The polymeric composition of claim 19, wherein said filler and/or reinforcing agent is selected from the group consisting of calcium silicate, silica, clays, talc, mica, polytetrafluoroethylene, graphite, alumina trihydrate, sodium aluminum carbonate, barium ferrite, wollastonite, glass fiber, graphitic carbon fiber, amorphous carbon fiber, synthetic polymeric fiber, alumina fiber, aluminum silicate fiber, aluminum oxide fiber, titanium fiber, magnesium fiber, rock wool fiber, steel fiber, tungsten fiber, wollastonite fiber having an aspect ratio greater than 3 to 1, and mixtures thereof.

21. The polymeric composition according to claim 19, wherein said filler and/or reinforcing agent is glass fiber.