High temperature polymer blends of poly(aryl ether ketone phthalazinone)

1. A composition, comprising:

a) a first polymer blend comprising a polymer selected from the group consisting of poly(aryl ether ketone phthalazinone)s and combinations thereof; and

b) a second polymer blend comprising a polymer selected from the group consisting of poly(aryl ether ketone)s, thermoplastic polyimides, poly(aryl ether sulfone)s, polybenzimidazoles, poly(phenylene sulfide)s and combinations thereof,

wherein said first polymer blend is miscible or partially miscible in the second polymer blend, and

wherein a miscible blend of the first and second polymer blends is characterized by a single glass transition temperature and a partially miscible blend of the first and second polymer blends is characterized by more than one glass transition temperature (T g ).

2. A composition, comprising:

a) about 1 part by weight to about 99 parts by weight of a first polymer component selected from the group consisting of poly(aryl ether ketone phthalazinone)s and mixtures thereof; and

c) about 1 part by weight to about 99 parts by weight of a second polymer component selected from the group consisting of poly(aryl ether ketone)s, thermoplastic polyimides, poly(aryl ether sulfone)s, polybenzimidazoles, poly(phenylene sulfide)s and mixtures thereof,

wherein said first polymer blend is miscible or partially miscible in the second polymer blend, and

wherein a miscible blend of the first and second polymer blends is characterized by a single glass transition temperature and a partially miscible blend of the first and second polymer blends is characterized by more than one glass transition temperature (T g ).

3. The composition of claim 1 , wherein said composition does not undergo delamination.

4. The composition of claim 1 , wherein the first polymer is a poly(aryl ether) formula, (I):

Z-Q x Z-C p y n   (I)

wherein 0.01≦y≦1.00 and x+y=1, and Cp is a phthalazinone radical having the formula (II):

Q is a Bisphenol radical having the formula (III):

a is equal to 0 or 1 in formula (III)

Z is a bisphenylketone radical having the formula (IV):

b is equal to 0 or 1 in formula (IV) or

a biphenyldiketone radical having the formula (V):

wherein n is an integer such that the inherent viscosity is at least about 0.3 dL/g in 98% sulfuric acid at 30° C.

5. The composition of claim 1 , wherein the first polymer is poly(aryl ether ketone phthalazinone) homopolymer, having the following formula:

wherein n is an integer such that the inherent viscosity is at least about 0.2 dL/g in 98% sulfuric acid at 30° C.

6. The composition of claim 1 , wherein the second polymer is a polybenzimidazole, having of the following formula:

wherein n is an integer such that the inherent viscosity is at least about 0.2 dL/g in dimethylformamide at 25° C., and

wherein the polybenzimidazole is miscible with the first polymer and the blend has a single T g and single T m .

7. The composition of claim 1 , wherein the first polymer blend is PAEKP-2 in the amount of 80 weight percent of the composition) and the second polymer blend is polybenzimidazole in the amount of 20 weight percent of the composition, and the improved melt processibility is characterized by T g of 283° C.

8. The composition of claim 1 , wherein the first polymer blend is PAEKP-2 in the amount of 60 weight percent of the composition and the second polymer blend is polybenzimidazole in the amount of 40 weight percent of the composition, and the improved melt processibility is characterized by T g of 300° C.

9. The composition of claim 1 , wherein the first polymer blend is PAEKP-2 in the amount of 20 weight percent of the composition and the second polymer blend is polybenzimidazole in the amount of 80 weight percent of the composition, and the improved melt processibility is characterized by T g of 365° C.

10. The composition of claim 1 , wherein the poly(aryl ether ketone phthalazinone) is a copolymer, having the following formula:

wherein 0.01≦x≦0.99 and x+y=1, and n is an integer such that the inherent viscosity is at least about 0.3 dL/g in 98% sulfuric acid at 30° C.

11. The composition of claim 1 , wherein the poly(aryl ether ketone phthalazinone) is a copolymer, having the following formula:

wherein 0.01≦x≦0.99 and x+y=1, and n is an integer such that the inherent viscosity is at least about 0.3 dL/g in 98% sulfuric acid at 30° C.

12. The composition of claim 1 , wherein the poly(aryl ether ketone phthalazinone) has a glass transition temperature (T g ) from about 160 to 257° C.

13. An article made from the composition of claim 1 .

14. The article of claim 13 , wherein the article is selected from the group consisting of sheets, films, multilayer sheets, multilayer films, molded parts, extruded profiles, fibers, coated parts, tubing, composites and foams.

15. A high temperature thermoplastic composition comprising a polymer blend, wherein the polymer blend is derived from mixing at least one poly(aryl ether ketone phthalazinone) and a polymer selected from the group consisting of a poly(aryl ether ketone), a polybenzimidazole, a thermoplastic polyimide, a poly(aryl ether sulfone), a poly(phenylene sulfide), and combinations thereof, wherein said composition exhibits miscibility or partial miscibility.

16. The thermoplastic composition of claim 15 , wherein the poly(aryl ether ketone phthalazinone) having the following formula (I):

Z-Q x Z-C p y n   (I)

wherein 0.01≦y≦1.00 and x+y=1, and Cp is a phthalazinone radical of formula (II),

Q is a Bisphenol radical of formula (III):

a is equal to 0 or 1 in formula (III)

Z is a bisphenylketone radical of formula (IV)

b is equal to 0 or 1 in formula (IV) or

a biphenyldiketone radical of formula (V)

wherein n is an integer such that the inherent viscosity is at least about 0.3 dL/g in 98% sulfuric acid at 30° C.

17. The composition of claim 15 , wherein the poly(aryl ether ketone phthalazinone) is a homopolymer, having the following formula:

wherein n is an integer such that the inherent viscosity is at least about 0.2 dL/g in 98% sulfuric acid at 30° C.

18. The composition of claim 15 , wherein the poly(aryl ether ketone phthalazinone) is a copolymer, having the following formula:

wherein 0.01≦x≦0.99 and x+y=1, and n is an integer such that the inherent viscosity is at least about 0.3 dL/g in 98% sulfuric acid at 30° C.

19. The composition of claim 15 , wherein the poly(aryl ether ketone phthalazinone) has a glass transition temperature from about 160 to 257° C.

20. An article made from the composition of claim 15 .

21. The article of claim 20 , wherein the article is selected from the group consisting of sheets, films, multilayer sheets, multilayer films, molded parts, extruded profiles, fibers, coated parts, tubing, composites and foams.

22. The composition of claim 15 , wherein the composition has an improved load bearing capability or an improved melt processability.