BLENDS OF POLYETHERIMIDE SULFONE AND POLY(ARYLENE SULFIDE)

• US 20130079438A1
• Filed: 09/27/2011
• Published: 03/28/2013
• Est. Priority Date: 09/27/2011
• Status: Active Grant

• Current Assignee: SHPP Global Technologies BV
• Original Assignee: Sabic Innovative Plastics IP BV (Government of Saudi Arabia)
• Inventors: Ramalingam, Hariharan, Haralur, Gurulingamurthy M., Chatterjee, Gautam, Sheth, Kapil Chandrakant, Mishra, Sanjay Braj, Sreeramagiri, Siva Kumar
• Granted Patent: US 9,909,006 B2
• Time in Patent Office: Days
• US Class Current: 523/435
• CPC Class Codes: C08L 81/02 Polythioethers; Polythioether-ethers
• CPC Class Codes: C08L 81/04 Polysulfides

Abstract

Disclosed herein is a composition comprising a compatible blend of i) 60 to 85 weight percent of a linear poly(arylene sulfide), ii) 15 to 40 weight percent of a polyetherimide sulfone; and iii) 1 to 3 weight percent of a novolac resin having an average of 2 or more epoxy groups per molecule. Weight percent is based on the total weight of the composition. An article made from the composition has a tensile strength greater than or equal to 70 megaPascals (MPa), as determined by ASTM D638, an impact strength of greater than or equal to 3 kiloJoules per square meter (kJ/m²), as determined by ASTM D256, and an elongation at break greater than or equal to 3% as determined by ASTM D638. Methods of making the composition are also disclosed.

Claims

1. A composition comprising a compatible blend of i) 60 to 85 weight percent of a linear poly (arylene sulfide), ii) 15 to 40 weight percent of a polyetherimide sulfone;

and iii) 1 to 3 weight percent of a novolac resin having an average of 2 or more epoxy groups per molecule, wherein weight percent is based on the total weight of the composition, and an article made from the composition has a tensile strength greater than or equal to 70 megaPascals (MPa), as determined by ASTM D638, an impact strength of greater than or equal to 3 kiloJoules per square meter (kJ/m²), as determined by ASTM D256, and an elongation at break greater than or equal to 3% as determined by ASTM D638.

2. The composition of claim 1, wherein the poly(arylene sulfide) is poly(phenylene sulfide).

3. The composition of claim 1, wherein the polyetherimide sulfone comprises structural units having the formula

4. The composition of claim 1, wherein the novolac resin has an average of 6 or more epoxy groups per molecule.

5. The composition of claim 1, wherein the novolac resin has an average of 20 or more epoxy groups per molecule.

6. The composition of claim 1, further comprising a reinforcing filler.

7. The composition of claim 6 wherein the reinforcing filler comprises glass beads, glass flake, milled glass, glass fibers, and combinations comprising any of the foregoing.

8. The composition of claim 1, wherein the composition comprises 20 to 35 weight percent of the polyetherimide sulfone, based on the total weight of the composition.

9. The composition of claim 1, wherein the composition comprises 65 to 75 weight percent of the poly(arylene sulfide), based on the total weight of the composition.

10. A composition comprising the reaction product of melt blending i) 60 to 85 weight percent of a linear poly (arylene sulfide), ii) 15 to 40 weight percent of a polyetherimide sulfone;

and iii) 1 to 3 weight percent of a novolac resin having an average of 2 or more epoxy groups per molecule, wherein weight percent is based on the total weight of the composition, and an article made from the composition has a tensile strength greater than or equal to 70 megaPascals (MPa), as determined by ASTM D638, an impact strength of greater than or equal to 3 kiloJoules per square meter (kJ/m²), as determined by ASTM D256, and an elongation at break greater than or equal to 3% as determined by ASTM D638.

11. The composition of claim 10, wherein the linear poly(arylene sulfide) is linear poly(phenylene sulfide).

12. The composition of claim 10, wherein the polyetherimide sulfone comprises structural units having the formula

13. The composition of claim 10, wherein the novolac resin has an average of 6 or more epoxy groups per molecule.

14. The composition of claim 13, wherein the novolac resin has an average of 20 or more epoxy groups per molecule.

15. The composition of claim 10, wherein the composition comprises 20 to 35 weight percent of the polyetherimide sulfone, based on the total weight of the composition.

16. The composition of claim 10, wherein the composition comprises 65 to 75 weight percent of the poly(arylene sulfide), based on the total weight of the composition.