Polyaryletherketone composition

Patent metadata

Field	Value
Publication number	US-9512312-B2
Application number	US-201514826241-A
Country	US
Kind code	B2
Filing date	Aug 14, 2015
Priority date	Aug 21, 2014
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

A polymer composition that contains a polyaryletherketone and a liquid crystalline polymer that includes repeating units derived from naphthenic hydroxycarboxylic acids, naphthenic dicarboxylic acids, or a combination thereof in an amount of more than about 15 mol. % of the polymer is provided.

First claim

What is claimed is:

1. A polymer composition comprising a polyaryletherketone and a liquid crystalline polymer that comprises repeating units derived from naphthenic hydroxycarboxylic acids, naphthenic dicarboxylic acids, or a combination thereof in an amount of more than about 15 mol. % of the polymer.

2. The polymer composition of claim 1 , wherein the repeating units derived from naphthenic hydroxycarboxylic acids, naphthenic dicarboxylic acids, or a combination thereof constitute from about 25 mol. % to about 50 mol. % of the liquid crystalline polymer.

3. The polymer composition of claim 1 , wherein the liquid crystalline polymer contains 2,6-naphthalenedicarboxylic acid in an amount of from about 15 mol. % to about 50 mol. %.

4. The polymer composition of claim 1 , wherein the liquid crystalline polymer further comprises repeating units derived from 4-hydroxybenzoic acid.

5. The polymer composition of claim 1 , wherein the liquid crystalline polymer further comprises repeating units derived from hydroquinone, 4,4-biphenol, or a combination thereof.

6. The polymer composition of claim 1 , wherein the polyaryletherketone has a glass transition temperature of from about 130° C. to about 230° C.

7. The polymer composition of claim 1 , wherein the polyaryletherketone has a melt viscosity of about 150 Pa-s or more, as determined in accordance with ISO Test No. 11443 at a shear rate of 1000 s −1 and temperature of 370° C.

8. The polymer composition of claim 1 , wherein the polyaryletherketone contains a moiety having the structure of Formula (I) and/or Formula (II):

wherein,
m and r are independently zero or a positive integer;
s and w are independently zero or a positive integer;
E and E′ are independently an oxygen atom or a direct link;
G is an oxygen atom, a direct link, or —O-Ph-O— where Ph is a phenyl group; and
Ar is one of the following moieties (i) to (vi), which is bonded via one or more of phenyl moieties to adjacent moieties:

9. The polymer composition of claim 8 , wherein the polyaryletherketone contains a repeat unit of the following general Formula (III):

wherein,
A and B are independently 0 or 1.

10. The polymer composition of claim 8 , wherein the polyaryletherketone contains a repeat unit of the following general Formula (IV);

wherein,
A and B are independently 0 or 1.

11. The polymer composition of claim 1 , wherein the polyaryletherketone is polyetheretherketone, polyetherketone, polyetherketoneketone, polyetherketoneetherketoneketone, polyetheretherketoneketone, polyether-diphenyl-ether-ether-diphenyl-ether-phenyl-ketone-phenyl, or a blend or copolymer thereof.

12. The polymer composition of claim 1 , wherein liquid crystalline polymers constitute from about 1 to about 60 parts relative to 100 parts by weight of polyaryletherketones in the composition.

13. The polymer composition of claim 1 , wherein liquid crystalline polymers constitute from about 0.5 wt. % to about 60 wt, % of the polymer composition.

14. The polymer composition of claim 1 , wherein polyaryletherketones constitute from about 40 wt. % to about 99.5 wt. % of the polymer composition.

15. The polymer composition of claim 1 , wherein the ratio of the melt viscosity of the polymer composition to the melt viscosity of the polyaryletherketone is about 0.98 or less.

16. The polymer composition of claim 1 , wherein the melt viscosity of the polymer composition is about 165 Pa-s or less, as determined in accordance with ISO Test No. 11443 at a shear rate of 1000 s −1 and temperature of 370° C.

17. The polymer composition of claim 1 , wherein the melt viscosity of the polymer composition is from about 1 to about 125 Pa-s, as determined in accordance with ISO Test No. 11443 at a shear rate of 1000 s −1 and temperature of 370° C.

18. The polymer composition of claim 1 , wherein the ratio of the complex viscosity to the melt viscosity of the polymer composition is from about 50 to about 1000, the complex viscosity being determined with a parallel plate rheometer at an angular frequency of 0.15 radians per second, temperature of 350° C., and at a constant strain amplitude of 1%, and the melt viscosity being determined in accordance with ISO Test No. 11443 at a shear rate of 1000 s −1 and temperature of 370° C.

19. The polymer composition of claim 1 , wherein the complex viscosity of the polymer composition is about 500 Pa-s or more, as determined with a parallel plate rheometer at an angular frequency of 0.15 radians per second, temperature of 350° C., and at a constant strain amplitude of 1%.

20. The polymer composition of claim 1 , wherein the crystallization half-time of the composition is about 45 minutes or less, determined at a temperature of 330° C.

21. The polymer composition of claim 1 , wherein the polyetherketone has a melt viscosity of from about 155 to about 250 Pa-s, as determined in accordance with ISO Test No. 11443 at a shear rate of 1000 s −1 and temperature of 370° C.

22. The polymer composition of claim 1 , wherein liquid crystalline polymers are employed in an amount of from about 5 to about 30 parts by weight relative to 100 parts by weight of polyaryletherketones in the composition.

23. The polymer composition of claim 1 , wherein polyaryletherketones constitute from about 50 wt. % to about 99 wt. % of the polymer composition.

Assignees

• Ticona Llc

Inventors

• Mazahir Syed
• Nair Kamlesh P
• Subromonian Suresh
• Grenci Joseph J
• Feng Ke
• Zhao Xinyu
• Mcilroy David A
• Chakrabarty Kaushik

Classifications

• C08G63/605

  the hydroxy and carboxylic groups being bound to aromatic rings · CPC title

• C08L71/08 Primary

  Polyethers derived from hydroxy compounds or from their metallic derivatives (C08L71/02 takes precedence) · CPC title

• C08G2650/40

  containing ketone groups, e.g. polyarylethylketones, PEEK or PEK · CPC title

• C08L71/00 Primary

  Compositions of polyethers obtained by reactions forming an ether link in the main chain (of polyacetals C08L59/00; of epoxy resins C08L63/00; of polythioether-ethers C08L81/02; of polyether-sulfones C08L81/06); Compositions of derivatives of such polymers · CPC title

• C08L67/02

  Polyesters derived from dicarboxylic acids and dihydroxy compounds (C08L67/06 takes precedence) · CPC title