Abstract:
Articles obtained from a polymer composition, preparation process and uses The present invention relates to novel articles formed from a polymer composition, the process for preparing same and also the uses of said articles. More specifically, the present invention targets articles that are molded or extruded from a polymer composition in molten form comprising polyamide 10,6.
Abstract:
The invention relates to a process for producing aromatic polyimides, comprising the following steps: (a) preparation of one or more solid salt(s) by reacting one or more aromatic tetracarboxylic acid(s) and one or more diamine(s) according to a mole ratio ranging from 0.95 to 1.05; (b) drying of the solid salt(s), (c) addition, to the dry salt resulting from step (b), of one or more compound(s) (C) comprising one or more group(s) chosen from a carboxylic acid group, an anhydride group, an ester group and an acyl chloride group; (d) solid-state polymerization of said solid salt(s) in the presence of the compound(s) (C).