phase is combined with the water phase thus the preferred solvent should have a solubility of not greater than 10 in water various additives generally present in electrostatograhic toner may be added to the polymer prior to dissolution in the solvent or in the dissolution step itself such as charge control agents waxes and lubricants suitable charge control agents are disclosed for example in u s pat nos 3 893 935 and 4 323 634 to jadwin et al and u s pat no 4 079 014 to burness et al and british patent no 1 420 839 to eastman kodak charge control agents are generally employed in small quantities such as from about 0 to 10 parts per hundred based upon the weight of the total solids content weight of the toner and preferably from about 0 2 to about 3 0 parts per hundred see u s pat no 6 380 297 particles having an average size of from 0 05 u03bcm to 100 u03bcm and preferably from 0 1 u03bcm to 60 u03bcm may be prepared in accordance with this invention the present invention relates to the use of a spinning disc reactor the reactor itself may be configured in any manner which is convenient to the formulator however each of the one or more discs or plates rotate about an axis the plates themselves are enclosed within a container suitable for carrying out the herein described operations non limiting examples of spinning disc reactors are disclosed in u201c process intensification the opportunity presented by spinning disk reactor technology u201d inst of chem eng symp ser 1997 r jachuck c ramshaw k boodhoo and j dalgleish 141 417 424 u201c photo initiated polymerisation using spinning disc reactor u201d jachuck r j and ramshaw c third.