dispersive mixing?

Question

what is dispersive mixing?

1, to distribute filer particles evenly through rubber mass
2, to allow the ruber mass to absorb the ingredients
3, to break down agglomerates of filler particles into smaller units
4, to reduce the viscosity of raw rubber

which one?

Answer 1

Dispersive mixing involves the reduction in size of a
component with a cohesive character; this matches answer 3), the breaking down of agglomerates.