Abstract: The present invention relates to a tape comprising an epoxy based resin having ester groups and ethylenically unsaturated groups, alternatively a hybrid resin. The tape of the invention can be used for insulation in electrical machines, especially in high voltage machines. Preferably, the tape of the invention is used in combination with a composition for impregnating and/or coating a substrate comprising the tape of the invention, wherein the composition further comprises a second epoxy based resin having ester groups and ethylenically unsaturated groups, also an hybrid resin, a diluent and an initiator for a radical polymerization.

Abstract: The present invention relates to a composition comprising an epoxy and ester based resin, a reactive diluent and an initiator for a radical polymerization. Furthermore, the invention relates to a process for providing such composition, to a process for applying the composition, to the use of the composition as coating material and to the materials coated with the polymerized composition.

Abstract: Use of the barrier property effect of nanomaterials to improve the electrical insulation resistance and corrosion protection strength properties of electromagnetic devices. The beneficial effects are realized with nanomaterial loadings of 1-20%, and preferably between 1-5%, parts by weight of coating resins. Nanomaterials include, but are not limited to, silica, alumina, zirconia, and antimony pentoxide, which are dispersed either directly into a coating, or pre-dispersed in a carrier appropriate to the solvent of the resin system. The rheology of the resin system is not significantly altered which would otherwise affect processing of the resins for their intended applications.

Abstract: Use of the barrier property effect of nanomaterials to improve the electrical insulation resistance, corrosion protection and bond strength properties of electromagnetic devices. The beneficial effects are realized with nanomaterial loadings of 1-20%, and preferably between 1-5%, parts by weight of coating resins. Nanomaterials include, but are not limited to, silica, alumina, zirconia, and antimony pentoxide, which are dispersed either directly into a coating, or pre-dispersed in a carrier appropriate to the solvent of the resin system. Resulting formulations benefit from the fact anti-settling agents need not be incorporated into the resin to keep the inorganic material suspended. Also, the rheology of the resin system is not significantly altered which would otherwise affect processing of the resins for their intended applications.