C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
Polyester de l'acide para-hydroxy benzoique, de 1,4-bis(para-carboxyphenoxy)benzene, d'un diol aromatique et d'un diacide aromatique pouvant etre traite a la fusion, et fibre, pellicule, article moule et compose de moulage obtenus