Abstract
Analysing the Maddock and Egan dispersive zones, their thermal homogeneisation effect and their role in dispersing agglomerated particles within the melt, resulted a correlation between the barrier zone slit height, h3 and the length of the barrier zone, L02 assuring the dispersing of the agglomerated particles within the melt. Given the role the Maddock and Egan zones have, based on the obtained relations, their dimensions (h3, B3, L02,j) can be calculated. Keywords: Maddock and Egan, thermal homogeneisation, in dispersing, barrier zone