| 摘要 |
A process for the formulation of an active ingredient in the form of waxed pellets comprising the steps of : either (I) intimately mixing powdered ingredients, powdered concentrate of active ingredient and powdered wax; or alternatively, (II) (a) intimately mixing powdered ingredients excluding the powdered concentrate of active ingredient and powdered wax, (b) blending liquid or powdered concentrate of active ingredient onto the mixed powdered ingredients, (c) adding powdered wax and intimately mixing with the product of b); and thereafter, (III) passing the mixture through a pelletising mechanism, characterised in that the melting point of the powdered wax is such that the wax melts under the heat generated by friction during pelletisation. |
