abstract |
Wherein the particles have an average bulk density between about 0.050 g / cm3 and about 0.15 g / cm3 and / or a mean bulk density of at least 18 (SSA) of 20 m 2 / g, 20 m 2 / g, 25 m 2 / g, 30 m 2 / g, 32 m 2 / g, 34 m 2 / g or 35 m 2 / g. Methods of making and using such compositions are also provided. |