ACID-HARDENING EPOXY THERMOSET RESINS AND COMPOSITES THAT CAN BE HOT-PROCESSED AND RECYCLED

摘要

Materials comprising thermoset resins and composites that can be processed hot, these compositions resulting from bringing at least one thermosetting resin precursor, having hydroxyl functional groups and/or epoxy groups, and optionally ester functional groups, into contact with at least one hardener chosen from carboxylic acids, in the presence of at least one transesterification catalyst, the total molar content of which is between 5 and 25% of the total molar content of hydroxyl and epoxy groups that are contained in the thermosetting resin precursor. Process for manufacturing these materials, process for converting these materials and process for recycling them. Novel solid forms of thermoset resins and composites that can be used in the implementation of these processes.