The pigment is added to the reaction mixture, preferably in the form of {HEAD ~ an aqueous surfactant solution}, before completion of the reaction so as to become entrapped in a matrix formed by the magnesium stearate and magnesium oxide components of {TAIL ~ the reaction product composition} 
The pigment is added to the reaction mixture , preferably in the form of { HEAD ~ an aqueous surfactant solution } , before completion of the reaction so as to become entrapped in a matrix formed by the magnesium stearate and magnesium oxide components of { TAIL ~ the reaction product composition }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL