Concentrated solution, used for molding, comprises additives and a polyamide-based matrix of a macromolecular compound with star- or H-shaped macromolecular chains with a core and at least three polyamide branches

摘要

Concentrated solution comprises additives and a polyamide-based matrix consisting of a macromolecular compound with star- or H-shaped macromolecular chains with a core and at least three polyamide branches and optionally linear polyamide chains. The ratio of star chains to the total of star and straight chains is 1-0.1 and the melt flow index of the matrix is 20 g/10 min. Independent claims are also included for: (1) the preparation of the solution by mixing and extruding the components; and (2) a polymer composition prepared by melting a thermoplastic polymer and the solution and an additive(s).