Patent ID: 6906165
Filing Date: 2005-06-14
Classification: C08G,Y10T

Abstract:
1. A copolyamide, comprising macromolecular units derived from the following monomers: (I) at least one difunctional monomer represented by the abbreviation AB (II) at least one multifunctional monomer represented by the abbreviation AaBb in which A represents a carboxylic acid function and B represents an amine function, a and b being numbers that satisfy the following relationships: (III) at least one multifunctional monomer represented by the abbreviation AcBd in which A represents a carboxylic acid function and B represents an amine function, c and d being numbers that satisfy the following relationships: the monomers (II) and (III) being chosen such that the ratio  being between 0.4 and 0.6, in which x represents the number of moles of monomer (II) and y represents the number of moles of monomer (III) the ratio  is less than 0.05, in which z represents the number of moles of monomer (I).