The invention relates to thermoplastic compositions comprising a thermoplastic polyamide matrix and at least one additive which modifies the interaction between the matrix and an agent. The purpose of the invention is to provide an additive which modifies the interaction between a copolyamide-type thermoplastic copolyamide matrix and at least one agent. The aforementioned additive, which comprises at least one hyperbranched functionalised polymer, is not compatible with the matrix. Moreover, said additive can be used for the controlled modification of the interaction between the thermoplastic copolyamide and an internal or external chemical agent. Preferably, the composition does not contain hyperbranched polymers which produce therein a reduction in the molar mass of matrix M which is greater than or equal to 7% in relation to a sample composition which comprises matrix M but does not contain hyperbranched polymer additive(s). Said mass measurement is taken preferably using a determined protocol P. The invention is suitable for use in moulding, injection moulding, injection/blow moulding, extrusion/blow moulding, extrusion or spinning.
本发明涉及热塑性组合物,该组合物包括热塑性聚酰胺基体和至少一种可改变基体与 剂之间相互作用的添加剂。本发明的目的是提供一种添加剂,它可以改变共聚多酰胺型热塑性共聚多酰胺基体和至少一种药剂之间的相互作用。上述添加剂由至少一种超支化官能团聚合物组成,与基体不兼容。此外,上述添加剂还可用于控制改变热塑性共聚多酰胺与内部或外部
化学剂之间的相互作用。组合物中最好不含超支化聚合物,因为超支化聚合物会导致基质 M 的摩尔质量比包含基质 M 但不含超支化聚合物添加剂的样品组合物降低大于或等于 7%。本发明适用于模塑、注塑、注塑/吹塑、挤压/吹塑、挤压或纺丝。