The present invention relates to the use of homo- and heterometallic polymers with the ligand 1,3,5-triaza-7-phosphaadamantanophosphine (PTA) and 3,7-dimethyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane (dmoPTA), as additives of epoxy resins.
These additives, when dissolved or suspended, improve and modify the properties of the resins, giving them new properties such as color, electrical and magnetic conductivity, thermal and fire resistance, flexibility, and different curing times, among other properties.