Fiber reinforced polyetherimide compositions

1. A composition comprising a polyetherimide, a polyester carbonate, and a reinforcement agent;

wherein the composition comprises the reinforcement agent in an amount ranging from 1 wt % to 70 wt % relative to the total weight of the composition;

wherein the reinforcement agent comprises a carbon fiber or a glass fiber or a combination thereof;

wherein the polyester carbonate comprises at least 40 mole % resorcinol based aryl ester linkages; and

wherein the composition demonstrates a flexural strength ranging from 200 MPa to 425 MPa.

2. The composition of claim 1 , wherein the composition comprises the polyetherimide in an amount ranging from 25 wt % to 60 wt % relative to the total weight of the composition; and wherein the composition comprises the polyester carbonate in an amount ranging from 20 wt % to 50 wt % relative to the total weight of the composition.

3. The composition of claim 1 , wherein the polyester carbonate comprises the resorcinol based aryl ester linkages in an amount ranging from 40 mole % to 95 mole % based on the total mole % of the polyester carbonate.

4. The composition of claim 1 , wherein the composition comprises the reinforcement agent in an amount ranging from 5 wt % to 35 wt % relative to the total weight of the composition.

5. The composition of claim 1 , wherein the composition further comprises a polyetherimide-siloxane copolymer.

6. The composition of claim 5 , wherein the polyetherimide-siloxane copolymer is present in an amount ranging from 0.1 wt % to 10 wt % relative to the total weight of the composition.

7. The composition of claim 1 , wherein the composition further comprises a polycarbonate-siloxane copolymer.

8. The composition of claim 7 , wherein the polycarbonate-siloxane copolymer is present in an amount ranging from 1 wt % to 15 wt % relative to the total weight of the composition.

9. The composition of claim 1 , wherein the composition further comprises one or more additional additives comprising an antioxidant, impact modifier, flame retardant, inorganic filler, or stabilizer.

10. The composition of claim 1 , wherein the composition demonstrates a tensile strength ranging from 120 MPa to 350 MPa.

11. The composition of claim 1 , wherein the composition demonstrates a higher tensile strength compared to a substantially identical reference composition in the absence of one or two of the polyetherimide, the polyester carbonate, and the reinforcement agent.

12. The composition of claim 1 , wherein the composition demonstrates a higher flexural strength compared to a substantially identical reference composition in the absence of one or two of the polyetherimide, the polyester carbonate, and the reinforcement agent.

13. The composition of claim 1 , wherein the composition demonstrates a higher melt volume rate compared to a substantially identical reference composition in the absence of the polyester carbonate.

14. The composition of claim 1 , wherein the composition demonstrates a higher notched Izod impact strength compared to a substantially identical reference composition in the absence of polyester carbonate.

15. The composition of claim 1 , wherein the composition demonstrates a stronger fiber-resin adhesion compared to a substantially identical reference composition in the absence the polyester carbonate.

16. The composition of claim 1 , wherein the carbon fiber demonstrates a tensile strength ranging from 2758 MPa to 8274 MPa (400 KSI to 1200 KSI).

17. An article comprising the composition of claim 1 .

18. The article of claim 17 , wherein the article comprises a metal replacement in a device.