Flowable Polyamides With Hyperbranched Polyesters/Polycarbonates

• US 20080015303A1
• Filed: 10/14/2005
• Published: 01/17/2008
• Est. Priority Date: 10/20/2004
• Status: Abandoned Application

• Current Assignee: BASF SE
• Original Assignee: BASF AG (BASF SE)
• Inventors: Desbois, Philippe, Fischer, Michael, Bruchmann, Bernd, Stumbe, Jean-Francois, Eibeck, Peter, Neuhaus, Ralf, Eipper, Andreas, Engelmann, Jochen
• Application Number:
  US11/577,590
• Publication Number:
  US 20080015303A1
• Time in Patent Office: Days
• US Class Current: 524/537
• CPC Class Codes: C08L 2666/18 Polyesters or polycarbonates according to C08L67/00 - C08L69/00; Derivatives thereof
• 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 67/00 Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain of polyester-amides C08L77/12; of polyester-imides C08L79/08; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 69/00 Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• CPC Class Codes: C08L 77/00 Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain of polyhydrazides C08L79/06; of polyamideimides or polyamide acids C08L79/08; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 77/02 Polyamides derived from omega-amino carboxylic acids or from lactams thereof C08L77/10 takes precedence
• CPC Class Codes: C08L 77/06 Polyamides derived from polyamines and polycarboxylic acids C08L77/10 takes precedence

Abstract

Thermoplastic molding compositions, comprising A) from 10 to 99% by weight of at least one thermoplastic polyamide, B) from 0.01 to 50% by weight of B1) at least one highly branched or hyperbranched polycarbonate with an OH number of from 1 to 600 mg KOH/g of polycarbonate (to DIN 53240, Part 2), or

• B2) at least one highly branched or hyperbranched polyester of A_xB_y type, where x is at least 1.1 and y is at least 2.1, or a mixture of these, C) from 0 to 60% by weight of other additives, where the total of the percentages by weight of components A) to C) is 100%.

Claims

1. A thermoplastic molding composition, comprising:

A) from 10 to 99% by weight of at least one thermoplastic polyamide;

B) from 0.01 to 50% by weight of

B1) at least one highly branched or hyperbranched polycarbonate with an OH number of from 1 to 600 mg KOH/g of polycarbonate (DIN 53240, Part

     2), or

B2) at least one highly branched or hyperbranched polyester of A_xB_y type, where x is at least 1.1 and y is at least 2.1, or a mixture of these; and

C) from 0 to 60% by weight of other additives;

wherein the total of the percentages by weight of components A) to C) is 100%.

2. The thermoplastic molding composition according to claim 1, wherein component B1) has a number-average molar mass Mn of from 100 to 15 000 g/mol.

3. The thermoplastic molding composition according to claim 1, wherein component B1) has a glass transition temperature Tg of from −

80°

C. to 140°

C.

4. The thermoplastic molding composition according to claim 1, wherein component B1) has a viscosity (mPas) at 23°

C. (DIN

     53019) of from 50 to 200 000.

5. The thermoplastic molding composition according to claim 1, wherein component B2) has a number-average molar mass Mn of from 300 to 30 000 g/mol.

6. The thermoplastic molding composition according to claim 1, component B2) has a glass transition temperature Tg of from −

50 to 140°

C.

7. The thermoplastic molding composition according to claim 1, wherein component B2) has an OH number (DIN 53240) of from 0 to 600 mg KOH/g of polyester.

8. The thermoplastic molding composition according to claim 1, wherein component B2) has a COOH number (DIN 53240) of from 0 to 600 mg KOH/g of polyester.

9. The thermoplastic molding composition according to claim 1, wherein component B2) has at least one OH number or COOH number greater than 0.

10. The thermoplastic molding composition according to claim 1, wherein the ratio of components B1):

B2) is from 1;

20 to 20;

1.

12. A fiber, a foil, or a molding, obtainable from the thermoplastic molding composition according to claim 1.

13. A method of making a fiber, foil, or molding, the method comprising:

preparing a thermoplastic molding composition according to claim 1;

and

forming a fiber, foil, or molding from the thermoplastic molding composition.

14. The thermoplastic molding composition according to claim 2, wherein component B1) has a glass transition temperature Tg of from −

80°

C. to 140°

C.

15. The thermoplastic molding composition according to claim 2, wherein component B1) has a viscosity (mPas) at 23°

C. of from 50 to 200 000.

16. The thermoplastic molding composition according to claim 3, wherein component B1) has a viscosity (mPas) at 23°

C. of from 50 to 200 000.

17. The thermoplastic molding composition according to claim 2, wherein component B2) has a number-average molar mass Mn of from 300 to 30 000 g/mol.

18. The thermoplastic molding composition according to claim 3, wherein component B2) has a number-average molar mass Mn of from 300 to 30 000 g/mol.

19. The thermoplastic molding composition according to claim 4, wherein component B2) has a number-average molar mass Mn of from 300 to 30 000 g/mol.

20. The thermoplastic molding composition according to claim 2, wherein component B2) has a glass transition temperature Tg of from −

50 to 140°

C.

21. The thermoplastic molding composition according to claim 3, wherein component B2) has a glass transition temperature Tg of from −

50 to 140°

C.

11. (canceled)