Integrated multiple particle agent for inductive heating and method of inductive heating therewith

Abstract From the Canadian patent

Of The Present Invention, An integrated multiple particle heating agent is provided for heating, particularly using the agent for heating and bonding plastic substrates. The integrated multiple particle heating agent includes significant portions of non-conductive ferromagnetic oxide particles which generate heat because of hysteresis losses and of conductive ferrous particles which generate heat because of eddy current losses. The dual particles are thoroughly intermixed and respond to a magnetic field of an appropriate RF frequency. The ferromagnetic particles are submicron size and the ferrous particles are micron size. The particles are combined with an inert resin carrier and applied …