Easily formulated zinc oxide powder
作者： Tatiana Drovetskaya , Marc N.G. De Mul
DOI:
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摘要: The present disclosure relates to polymeric siloxane coated zinc oxide powders having a mean particle size number distribution (D50) ranging from about 300 nm 600 and their use in sunscreen compositions. relatively high surface area (in relation particles of <100 nm) avoids agglomeration resulting ease formulation dispersal the which tends toward less light scatter hence better transparency formulations. Furthermore, combination particular as above with bis(resorcinyl)triazine UV absorbers shows unexpected increased UV-A absorbance (320 400 comparison bis resorcinyl triazine on own at same concentration.
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