• Wax emulsion
• Silicone

One of these carrier substances are wax emulsions which are for e.g. used for the production of suppositories. Suppositories can be seen as small containers for a medical active substance. The container consists of purest paraffin, that is melting at body temperature. Therefore the suppository can dissolve after introduction and the medical active substance is set free.

1. There are paraffin emulsions of the most different types, used either for water repellent finishing or for coating of medical active substances.
2. The main process step is the melting of the wax at moderate stirring, e.g. with the IKA®-TURBOTRON®. After that the additives and the hot water are added and dispersed in circulating operation.
3. Best suited for this process are the IKA® inline dispersing machine of type DISPAX-REACTOR® DR 2000/.., ULTRA-TURRAX® 2000/... or colloid mill MK 2000/..
   

Silicones are synthetic polymer compounds in which silicium atoms are bound in a netted way via oxygen atoms or chains. Remaining valences of the silicium are saturated by residual hydrocarbons.

Silicones are something between inorganic and organic compounds, especially between silicates and organic polymers.

Silicone emulsions are specially used for creams and sun protection products.olloid mill MK 2000/..

1. It is recommended first to make a preparation with little water (approx. 15%) and to produce a gel-like emulsion. The suitable machine for this purpose is a colloid mill of the type IKA ® MK 2000 with a stronger motor (approx. 30 kW, 1.000 l/h). Moreover it has to be worked with high shear gradient.
2. As soon as a homogeneous, transparent and very viscous mixture is reached, any requested viscosity can be adjusted by further mixing in of water and emulsifier.