Composition based on poly (arylene ether ketone) having improved properties
View Patent ↗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.
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.