Copolymer to Improve Pigment Dispersion in Lipsticks
Oct 03, 2014· To put the efficacy of the new ingredient to the test, the premix without the copolymer was passed twice through a three roll mill, whereas the premix with the copolymer was passed through only once. The differences between the premixes, shown in Figure 2, without the new copolymer (a, c and e) and with (b, d and f) were evident. Those without ...