Thermoplastic poly(arylene ether) / polyester blends and articles thereof
View Patent ↗Disclosed herein is a polymer composition comprising: a poly(arylene ether); a polyester; electrically conductive filler, and an impact modifier. The composition has a continuous phase comprising polyester and a disperse phase comprising poly(arylene ether). The amount of the disperse phase is less than 35 weight percent, based on the total weight of the composition.
1. A thermoplastic composition comprising:
a polyester;
a poly(arylene ether) wherein a portion of the poly(arylene ether) is functionalized poly(arylene ether);
electrically conductive filler and
an impact modifier;
wherein the composition comprises a continuous phase comprising polyester and a disperse phase comprising poly(arylene ether) and impact modifier and the amount of the disperse phase is less than 35 weight percent, based on the total weight of the composition,
wherein the composition has a notched Izod value greater than or equal to 6 kilojoules per square meter as determined by ISO 180/1A and a nominal strain at break greater than or equal to 15% as determined by ISO 527, and
wherein the poly(arylene ether) is present in an amount of 5 to 30 weight percent, the polyester is present in an amount of 40 to 90 weight percent, the impact modifier is present in an amount of 5 to 22 weight percent, and the electrically conductive filler is present in an amount of 0.2 to 20 weight percent, wherein all weight percents are based on the total weight of the entire composition.
2. The composition of claim 1 , wherein the combined amount of impact modifier and poly(arylene ether) is less than 35 weight percent, based on the total weight of the composition.
3. The composition of claim 1 , wherein the composition has a notched Izod value greater than or equal to 8 kilojoules per square meter as determined by ISO 180/1A and a nominal strain at break greater than or equal to 17% as determined by ISO 527.
4. The composition of claim 1 , wherein the disperse phase has an average particle diameter of 0.2 to 5 micrometers.
5. The composition of claim 1 , wherein the poly(arylene ether) is melt mixed prior to forming the composition.
6. The composition of claim 1 , wherein the polyester is a linear aliphatic polyester.
7. The composition of claim 1 , wherein the impact modifier is a block copolymer or combination of block copolymers.
8. An article comprising the thermoplastic composition of claim 1 .
9. A thermoplastic composition comprising:
40 to 90 weight percent of a linear aliphatic polyester;
5 to 30 weight percent of a poly(arylene ether) wherein a portion of the poly(arylene ether) is functionalized poly(arylene ether);
0.2 to 20 weight percent of an electrically conductive filler; and
5 to 22 weight percent of an impact modifier;
wherein the composition comprises a continuous phase comprising polyester and a disperse phase comprising poly(arylene ether) and impact modifier and the amount of the disperse phase is less than 35 weight percent, based on the total weight of the composition,
wherein the composition has a notched Izod value greater than or equal to 6 kilojoules per square meter as determined by ISO 180/1A and a nominal strain at break greater than or equal to 15% as determined by ISO 527, and
wherein weight percents are based on the total weight of the composition.
10. An article comprising the thermoplastic composition of claim 9 .
11. A thermoplastic composition comprising:
40 to 90 weight percent, based on the total weight of the composition, of a polybutylene terephthalate;
5 to 30 weight percent, based on the total weight of the composition, of a poly(arylene ether) wherein a portion of the poly(arylene ether) is functionalized poly(arylene ether);
0.2 to 20 weight percent, based on the total weight of the composition, of an electrically conductive filler; and
5 to 22 weight percent, based on the total weight of the composition, of an impact modifier comprising a block copolymer or a combination of block copolymers;
wherein the composition comprises a continuous phase comprising polybutylene terephthalate and a disperse phase comprising poly(arylene ether) and impact modifier and the amount of the disperse phase is less than 35 weight percent, based on the total weight of the composition, and
wherein the composition has a notched Izod value greater than or equal to 6 kilojoules per square meter as determined by ISO 180/1A and a nominal strain at break greater than or equal to 15% as determined by ISO 527.
12. A thermoplastic composition produced by melt blending:
a polyester;
a poly(arylene ether) wherein a portion of the poly(arylene ether) is functionalized poly(arylene ether);
an impact modifier;
an electrically conductive filler; and
a polymeric compatibilizer having an average of greater than or equal to 3 pendant epoxy groups per molecule;
wherein the composition comprises a continuous phase comprising polyester and a disperse phase comprising poly(arylene ether) and impact modifier and the amount of the disperse phase is less than 35 weight percent, based on the total weight of the composition,
wherein the composition has a notched Izod greater than or equal to 6 kilojoules per square meter, as determined by ISO 180/1A and a nominal strain at break greater than or equal to 15% as determined by ISO 527, and
wherein the poly(arylene ether) is present in an amount of 5 to 30 weight percent, the polyester is present in an amount of 40 to 90 weight percent, the impact modifier is present in an amount of 5 to 22 weight percent, and the electrically conductive filler is present in an amount of 0.2 to 20 weight percent, wherein all weight percents are based on the total weight of the entire composition.
13. The composition of claim 12 , wherein the combined amount of impact modifier and poly(arylene ether) is less than 35 weight percent (wt %), based on the total weight of the composition.
14. The composition of claim 12 , wherein the composition has a notched Izod value greater than or equal to 8 kilojoules per square meter as determined by ISO 180/1A and a nominal strain at break greater than or equal to 17% as determined by ISO 527.
15. The composition of claim 12 , wherein the polymeric compatibilizer has an average of greater than or equal to 8 pendant epoxy groups per molecule.
16. The composition of claim 15 , wherein the polymeric compatibilizer has an average of greater than or equal to 11 pendant epoxy groups per molecule.
17. The composition of claim 16 , wherein the polymeric compatibilizer has an average of greater than or equal to 15 pendant epoxy groups per molecule.
18. The composition of claim 17 , wherein the polymeric compatibilizer has an average of greater than or equal to 17 pendant epoxy groups per molecule.
19. The composition of claim 12 , wherein the polyester is a linear aliphatic polyester.
20. The composition of claim 12 , wherein the impact modifier is a block copolymer or combination of block copolymers.
21. An article comprising the thermoplastic composition of claim 12 .
22. A thermoplastic composition produced by melt blending:
a polyester;
a poly(arylene ether);
an impact modifier;
a functionalizing agent;
an electrically conductive filler; and
a polymeric compatibilizer having an average of greater than or equal to 3 pendant epoxy groups per molecule,
wherein the composition has a notched Izod greater than or equal to 6 kilojoules per square meter, as determined by ISO 180/1A and a nominal strain at break greater than or equal to 15% as determined by ISO 527, and
wherein the poly(arylene ether) is present in an amount of 5 to 30 weight percent, the polyester is present in an amount of 40 to 90 weight percent, the impact modifier is present in an amount of 5 to 22 weight percent, and the electrically conductive filler is present in an amount of 0.2 to 20 weight percent, wherein all weight percents are based on the total weight of the entire composition, and wherein the composition comprises a continuous phase comprising polyester and a disperse phase comprising poly(arylene ether) and impact modifier and the amount of the disperse phase is less than 35 weight percent, based on the total weight of the composition.
23. The composition of claim 22 , wherein the composition has a notched Izod value greater than or equal to 8 kilojoules per square meter as determined by ISO 180/1A and a nominal strain at break greater than or equal to 17% as determined by ISO 527.
24. The composition of claim 22 , wherein the polymeric compatibilizer has an average of greater than or equal to 8 pendant epoxy groups per molecule.
25. The composition of claim 24 , wherein the polymeric compatibilizer has an average of greater than or equal to 11 pendant epoxy groups per molecule.
26. The composition of claim 25 , wherein the polymeric compatibilizer has an average of greater than or equal to 15 pendant epoxy groups per molecule.
27. The composition of claim 26 , wherein the polymeric compatibilizer has an average of greater than or equal to 17 pendant epoxy groups per molecule.
28. The composition of claim 22 , wherein the polyester is a linear aliphatic polyester.
29. The composition of claim 22 , wherein the impact modifier is a block copolymer or combination of block copolymers.
30. An article comprising the thermoplastic composition of claim 22 .
31. A thermoplastic composition produced by melt blending:
40 to 90 weight percent, based on the total weight of the composition, of a polybutylene terephthalate;
5 to 30 weight percent, based on the total weight of the composition, of a poly(arylene ether) wherein a portion of the poly(arylene ether) is functionalized poly(arylene ether);
5 to 22 weight percent, based on the total weight of the composition, of an impact modifier;
0.2 to 20 weight percent, based on the total weight of the composition, of an electrically conductive filler; and
0.1 to 20 weight percent, based on the total weight of the composition, of a polymeric compatibilizer having an average of greater than or equal to 3 pendant epoxy groups per molecule;
wherein the composition comprises a continuous phase comprising polyester and a disperse phase comprising poly(arylene ether) and impact modifier and the amount of the disperse phase is less than 35 weight percent, based on the total weight of the composition,
wherein the composition has a notched Izod greater than or equal to 6 kilojoules per square meter, as determined by ISO 180/1A and a nominal strain at break greater than or equal to 15% as determined by ISO 527.
32. A thermoplastic composition produced by melt blending:
40 to 90 weight percent, based on the total weight of the composition, of a polybutylene terephthalate
5 to 30 weight percent, based on the total weight of the composition, of a poly(arylene ether);
5 to 22 weight percent, based on the total weight of the composition, of an impact modifier;
a functionalizing agent;
0.2 to 20 weight percent, based on the total weight of the composition, of an electrically conductive filler; and
0.1 to 20 weight percent, based on the total weight of the composition, of a polymeric compatibilizer having an average of greater than or equal to 3 pendant epoxy groups per molecule wherein the composition comprises a continuous phase comprising polybutylene terephthalate and a disperse phase comprising poly(arylene ether) and impact modifier and the amount of the disperse phase is less than 35 weight percent, based on the total weight of the composition, and,
wherein the composition has a notched Izod greater than or equal to 6 kilojoules per square meter, as determined by ISO 180/1A and a nominal strain at break greater than or equal to 15% as determined by ISO 527.
33. An article comprising a thermoplastic composition, wherein the thermoplastic composition comprises:
40 to 90 weight percent, based on the total weight of the composition, of a polybutylene terephthalate;
5 to 30 weight percent, based on the total weight of the composition, of a poly(arylene ether) wherein a portion of the poly(arylene ether) is functionalized poly(arylene ether);
0.2 to 20 weight percent, based on the total weight of the composition, of an electrically conductive filler; and
5 to 22 weight percent, based on the total weight of the composition, of an impact modifier comprising a block copolymer or a combination of block copolymers;
wherein the composition comprises a continuous phase comprising polybutylene terephthalate and a disperse phase comprising poly(arylene ether) and impact modifier and the amount of the disperse phase is less than 35 weight percent, based on the total weight of the composition, and
wherein the composition has a notched Izod value greater than or equal to 6 kilojoules per square meter as determined by ISO 180/1A and a nominal strain at break greater than or equal to 15% as determined by ISO 527.