Hydrostable polyetherimide blends, methods of manufacture, and articles formed therefrom

• US 9,006,319 B2
• Filed: 02/04/2011
• Issued: 04/14/2015
• Est. Priority Date: 07/30/2010
• Status: Expired due to Fees

• Current Assignee: SHPP Global Technologies BV
• Original Assignee: SABIC Global Technologies BV (Government of Saudi Arabia)
• Inventors: Gallucci, Robert Russell, Sanner, Mark A., Zafiris, Georgios S.
• Primary Examiner(s): LEE, DORIS L
• Application Number:
  US13/020,897
• Publication Number:
  US 20120029125A1
• Time in Patent Office: 1,530 Days
• Field of Search: 524/115
• US Class Current: 524/115
• CPC Class Codes: C08G 73/1046 Polyimides containing oxygen in the form of ether bonds in the main chain
• CPC Class Codes: C08G 73/1071 Wholly aromatic polyimides containing oxygen in the form of ether bonds in the main chain
• CPC Class Codes: C08K 3/26 Carbonates; Bicarbonates
• CPC Class Codes: C08K 3/346 Clay
• CPC Class Codes: C08K 5/13 Phenols; Phenolates
• CPC Class Codes: C08K 5/49 Phosphorus-containing compounds C08K5/0091 takes precedence
• CPC Class Codes: C08L 2666/20 Macromolecular compounds having nitrogen in the main chain according to C08L75/00 - C08L79/00; Derivatives thereof
• CPC Class Codes: C08L 69/00 Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• CPC Class Codes: C08L 69/005 Polyester-carbonates
• CPC Class Codes: C08L 79/08 Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors

Abstract

A composition comprising, based on the total weight of the composition, from 10 to 90 wt. % of a polyetherimide with a weight average molecular weight from 10,000 to 80,000 Daltons; from 10 to 90 wt. % of a polymer selected from polycarbonates, polyester-polycarbonates, polyalkylene terephthalates, or a combination thereof, from 0.005 to 1 wt. % of a hydrotalcite having a particle size of less than 10 micrometer and a magnesium oxide to aluminum oxide mole ratio of 1.0 to 5.0; from 0.01 to 1.0 wt. % of a phosphorus-containing stabilizer; from 0.01 to 1.00 wt. % of a hindered phenol stabilizer; optionally, from 0 to 3 wt. % of a polyolefin; and optionally, from 0 to 5 wt. % of an inorganic metal oxide.

Claims

1. A composition comprising, based on the total weight of the composition,

from 10 to 90 wt. % of a polyimide with a weight average molecular weight of from 10,000 to 80,000 Daltons, of the formula

2. The composition of claim 1, having less than 100 ppm by weight of the composition of a sodium aryl phosphinate salt.

3. The composition of claim 1, wherein the polyimide is the product of a halo-displacement manufacturing process.

4. The composition of claim 1, wherein the phosphorus-containing stabilizer is tris(2,4-di-tert-butyl-phenyl) phosphite having a molecular weight of greater than 300 Daltons.

5. The composition of claim 1 comprising the polyolefin, wherein the polyolefin is a high-density polyethylene.

6. The composition of claim 1 comprising the metal oxide, wherein the metal oxide is a titanium dioxide having a mean particle size of less than 5 micrometers.

7. The composition of claim 1, wherein the hydrotalcite is calcined.

8. The composition of claim 7, wherein the calcined hydrotalcite has less than 30 ppm of mercury, lead, cadmium, arsenic, bismuth, or a combination thereof.

9. The composition of claim 1, wherein the polyester-polycarbonate comprises, based on the total weight of the polyester-polycarbonate,

from greater than zero to 90 weight percent of a polymer containing recurring units of the formula:

10. The composition of claim 9, wherein X^a is a substituted or unsubstituted C_3-18 cycloalkylidene, a C_1-25 alkylidene of the formula —

C(R^c)(R^d)—

wherein R^c and R^d are each independently hydrogen, C_1-12 alkyl, C_1-12 cycloalkyl, C_7-12 arylalkyl, C_1-12 heteroalkyl, or cyclic C_7-12 heteroarylalkyl, or a group of the formula —

C(═

R^e)—

wherein R^e is a divalent C_1-12 hydrocarbon group.

11. The composition of claim 10, wherein X^a is isopropylidene and p and q are each zero.

12. The composition of claim 1, wherein the polyimide is a polyetherimide of the formula

13. The composition of claim 12, wherein R is m-phenylene, p-phenylene diarylsulfone, or a combination thereof.

14. The composition of claim 12, wherein the polyimide is a product of the reaction of

a compound of the formula

15. The composition of claim 14, wherein X is chloro, M is sodium, and R is m-phenylene, p-phenylene diaryl sulfone, or a combination thereof.

16. A method of manufacture of a composition, comprising melt blending the components of the composition of claim 1.

17. A method of forming an article, comprising shaping, extruding, blow molding, or injection molding the composition of claim 1 to form the article.

18. An article comprising the composition of claim 1.

19. The article of claim 18, selected from a sheet, film, multilayer sheet, multilayer film, molded part, extruded profile, coated part, and fiber.

20. A composition comprising, based on the total weight of the composition,

from 10 to 90 wt. % of a polyimide with a weight average molecular weight of from 10,000 to 80,000 Daltons, of the formula

21. The composition of claim 20, wherein the initial tensile strength at yield is from 9 to 15 MPa.

22. A composition comprising, based on the total weight of the composition,

from 15 to 85 wt. % of a polyimide with a weight average molecular weight (Mw) of from 40,000 to 80,000 Daltons, of the formula

23. The composition of claim 22, wherein the calcined hydrotalcite is present in an amount that is from 0.1 to less than or equal to 0.4 wt. %, based on the total weight of the composition.

24. The composition of claim 22, wherein the polyimide is a product of the reaction of

a compound of the formula