Flowable Polyamides With Hyperbranched Polyesters/Polycarbonates

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 x B 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%.

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 x B 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.  
   
   
       11 . (canceled)  
   
   
       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.