| 摘要 |
A method for preparing a stable dispersion of a metal oxide in water comprising dispersing colloidal microcrystalline cellulose in water either prior to or concurrently with adding said metal oxide and recovering said stable metal oxide dispersion, wherein: (i) said metal oxide has an average particle size of less than 250 nanometers, (ii) said metal oxide is not iron oxide, (iii) said colloidal microcrystalline cellulose is coprocessed with a polymeric binder and (iv) said metal oxide is present in an amount of at least 0.6% by weight of the total weight of the dispersion. Also disclosed are dispersion compositions made by the above methods and their use as cosmetics, sunscreens, pharmaceuticals, paints, coatings, textiles or food products. |
