High solids content poly(butyl acrylate)/poly(methyl methacrylate) coreshell latex particles were produced using miniemulsion polymerisation in a continuous linear tubular reactor. The resulting products were and shown to be comparable to a batch process. Final solids contents of 41 and 48?wt.% were shown to be possible in a simple tubular reactor. Differential scanning calorimeter analysis indicated that coreshell particles were formed under these conditions. (c) 2011 Canadian Society for Chemical Engineering