HOT-FORMABLE AND RECYCLABLE EPOXY ANHYDRIDE THERMOSETTING RESINS AND THERMOSETTING COMPOSITES

摘要

The invention relates to thermosetting resins and to thermosetting composites containing same, wherein said materials are hot-formable. Said compositions result from contacting at least one thermosetting resin precursor with at least one hardener selected from among the acid anhydrides in the presence of at least one transesterification catalyst, wherein said thermosetting resin precursor includes hydroxyl functions and/or epoxy groupings, and optionally ester functions, and the total molar quantity of the transesterification catalyst is between 5 and 25% of the total molar quantity of hydroxyl and epoxy contained in the thermosetting resin precursor. The invention also relates to a method for manufacturing said materials, to a method for processing said materials, and to a method for recycling said materials. The invention further relates to novel solid forms of thermosetting resins and thermosetting composites which can be used in implementing said methods.