Use of thermoplastic molding materials for gid/wit

Abstract

Use of thermoplastic molding compositions comprising A) from 10 to 89% by weight of a polyethylene terephthalate which can comprise up to 65% by weight, based on 100% by weight of A), of another polyester, 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 10 to 60% by weight of a fibrous or particulate filler, and D) from 0 to 20% by weight of further additives, where the total of the percentages by weight of components A) to D) is 100%, for the production of moldings by means of the internal-gas-pressure process and/or the water-injection process.

1 . The use of thermoplastic molding compositions comprising
 A) from 10 to 89% by weight of a polyethylene terephthalate which can comprise up to 65% by weight, based on 100% by weight of A), of another polyester,   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 10 to 60% by weight of a fibrous or particulate filler, and   D) from 0 to 20% by weight of further additives,   
       where the total of the percentages by weight of components A) to D) is 100%, for the production of moldings by means of the internal-gas-pressure process and/or the water-injection process. 
     
     
         2 . The use of thermoplastic molding compositions according to  claim 1 , in which component B1) has a number-average molar mass M n  of from 100 to 15 000 g/mol. 
     
     
         3 . The use of thermoplastic molding compositions according to  claim 1 , in which component B1) has a glass transition temperature Tg of from −80° C. to 140° C. 
     
     
         4 . The use of thermoplastic molding compositions according to  claim 1 , in which component B1) has a viscosity (mPas) at 23° C. (to DIN 53019) of from 50 to 200 000. 
     
     
         5 . The use of thermoplastic molding compositions according to  claim 1 , in which component B2) has a number-average molar mass M n  of from 300 to 30 000 g/mol. 
     
     
         6 . The use of thermoplastic molding compositions according to  claim 1 , in which component B2) has a glass transition temperature Tg of from −50° C. to 140° C. 
     
     
         7 . The use of thermoplastic molding compositions according to  claim 1 , in which component B2) has an OH number (to DIN 53240) of from 0 to 600 mg KOH/g of polyester. 
     
     
         8 . The use of thermoplastic molding compositions according to  claim 1  for the production of liquid- or gas-conducting pipes, of motor vehicle parts, of kitchen equipment, or of coated moldings. 
     
     
         9 . The use of thermoplastic molding compositions according to  claim 8  for the production of roof railings, stove handles, water pipes, kitchen elements, chairs, table legs, strips, profiles, exterior mirrors, and attachment systems for these, gas pipes, or gas lines. 
     
     
         10 . The use of thermoplastic molding compositions according to  claim 2 , in which component B1) has a glass transition temperature Tg of from −80° C. to 140° C. 
     
     
         11 . The use of thermoplastic molding compositions according to  claim 2 , in which component B1) has a viscosity (mPas) at 23° C. (to DIN 53019) of from 50 to 200 000. 
     
     
         12 . The use of thermoplastic molding compositions according to  claim 3 , in which component B1) has a viscosity (mPas) at 23° C. (to DIN 53019) of from 50 to 200 000. 
     
     
         13 . The use of thermoplastic molding compositions according to  claim 2 , in which component B2) has a number-average molar mass M n  of from 300 to 30 000 g/mol. 
     
     
         14 . The use of thermoplastic molding compositions according to  claim 3 , in which component B2) has a number-average molar mass M n  of from 300 to 30 000 g/mol. 
     
     
         15 . The use of thermoplastic molding compositions according to  claim 4 , in which component B2) has a number-average molar mass M n  of from 300 to 30 000 g/mol. 
     
     
         16 . The use of thermoplastic molding compositions according to  claim 2 , in which component B2) has a glass transition temperature Tg of from −50° C. to 140° C. 
     
     
         17 . The use of thermoplastic molding compositions according to  claim 3 , in which component B2) has a glass transition temperature Tg of from −50° C. to 140° C. 
     
     
         18 . The use of thermoplastic molding compositions according to  claim 4 , in which component B2) has a glass transition temperature Tg of from −50° C. to 140° C. 
     
     
         19 . The use of thermoplastic molding compositions according to  claim 5 , in which component B2) has a glass transition temperature Tg of from −50° C. to 140° C. 
     
     
         20 . The use of thermoplastic molding compositions according to  claim 2 , in which component B2) has an OH number (to DIN 53240) of from 0 to 600 mg KOH/g of polyester.