Biogenic epoxy resin systems

So far, the adhesives such as thermosetting epoxy resins, which consist of a resin and a hardener component, are based on petroleum. An alternative for the resin component are vegetable oil epoxides, such as from linseed or dragon head oil. An epoxy resin with a biogenic content of 85% and a curing time of less than 5 minutes at room temperature could be obtained by using bio-based acids as the hardener component.