Composition based on poly (arylene ether ketone) having improved properties

Patent metadata

Field	Value
Publication number	US-10150866-B2
Application number	US-201515520913-A
Country	US
Kind code	B2
Filing date	Oct 9, 2015
Priority date	Oct 22, 2014
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

A composition based on poly(ether ether ketone) (PEEK) including poly(ether ketone ketone) (PEKK), characterized in that the poly(ether ketone ketone) (PEKK) includes a mixture of terephthalic and isophthalic units, the percentage by weight of terephthalic units, with respect to the sum of the terephthalic and isophthalic units, being between 55 and 85%, limits included, and preferably between 55 and 70%, the composition including between 1 and 40%, limits included, preferably between 5 and 40% and more preferably still between 10 and 30% by weight of PEKK, with respect to the total weight of the composition.

First claim

The invention claimed is:

1. Composition based on one of the following polymers: poly(ether ether ketone) (PEEK), poly(ether ketone) (PEK) or poly(ether ketone ether ketone ketone) (PEKEKK), and comprising poly(ether ketone ketone) (PEKK), wherein the poly(ether ketone ketone) (PEKK) comprises a mixture of terephthalic and isophthalic units, the percentage by weight of terephthalic units, with respect to the sum of the terephthalic and isophthalic units, being between 55 and 85%, limits included, the composition comprising between 1 and 40%, limits included, by weight of PEKK, with respect to the total weight of the composition,
wherein the composition is in the form of granules or in the form of a powder.

2. The composition according to claim 1 , wherein the PEKK can be a PEKK blend, each PEKK exhibiting a percentage by weight of terephthalic units, with respect to the sum of the terephthalic and isophthalic units, of between 55 and 85%, limits included.

3. The composition according to claim 1 , wherein the composition comprises at least one filler and/or at least one additive.

4. The composition according to claim 1 , wherein the proportion by weight of PEEK in the composition is between 60 and 99%, limits included, with respect to the total weight of the composition.

5. Object manufactured from a composition according to claim 1 by a technology chosen from laser sintering, moulding, injection moulding or extrusion.

6. The composition according to claim 1 , wherein the PEKK comprises a mixture of terephthalic and isophthalic units, the percentage by weight of terephthalic units, with respect to the sum of the terephthalic and isophthalic units, being between 55 and 70%, limits included.

7. The composition according to claim 1 , wherein the composition comprising between 5 and 40%, limits included, by weight of PEKK, with respect to the total weight of the composition.

8. The composition according to claim 1 , wherein the composition comprising between 10 and 30%, limits included, by weight of PEKK, with respect to the total weight of the composition.

9. The composition according to claim 1 , wherein the proportion by weight of PEEK in the composition is between 70 and 90%, limits included, with respect to the total weight of the composition.

10. The composition according to claim 1 ,
wherein the proportion by weight of PEEK in the composition is between 70 and 90%, limits included, with respect to the total weight of the composition,
wherein the composition comprising between 10 and 30%, limits included, by weight of PEKK, with respect to the total weight of the composition, and
wherein the PEKK comprises a mixture of terephthalic and isophthalic units, the percentage by weight of terephthalic units, with respect to the sum of the terephthalic and isophthalic units, being between 55 and 70%, limits included.

11. The composition according to claim 1 , wherein the composition comprises poly(ether ketone) (PEK).

12. The composition according to claim 1 , wherein the composition comprises poly(ether ketone ether ketone ketone) (PEKEKK).

13. The composition according to claim 1 , wherein the composition is in the form of granules.

14. The composition according to claim 1 , wherein the composition is in the form of a powder.

Assignees

• Arkema France

Inventors

• Brule Benoît
• Audry Richard
• Pascal Jerome

Classifications

• 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

• C08L2205/02

  containing two or more polymers of the same C08L -group · CPC title

• C08L2205/025

  containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure · CPC title

• C08L71/10

  from phenols · CPC title