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US 2025/0197239 A1Published application
Zinc oxide powder, liquid dispersion, coating material, and cosmetic
AssigneeSumitomo Osaka Cement Co., Ltd.
InventorsTadashi NEYA, Syunsuke SUMA
Life of this patent
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Abstract
In a zinc oxide powder, a BET specific surface area is equal to or more than 1.5 m2/g and less than 8 m2/g, an apparent specific volume by a loose packing method is equal to or more than 0.8 mL/g and equal to or less than 4.0 mL/g, and a value (the apparent specific volume by the loose packing method/an apparent specific volume by a tapping method) obtained by dividing the apparent specific volume (mL/g) by the loose packing method by the apparent specific volume (mL/g) by the tapping method, is equal to or more than 1.50 and equal to or less than 2.50.
Claims7
A zinc oxide powder,
- wherein a BET specific surface area is equal to or more than 1.5 m2/g and less than 8 m2/g,
- an apparent specific volume by a loose packing method is equal to or more than 0.8 mL/g and equal to or less than 4.0 mL/g, and
- a value (the apparent specific volume by the loose packing method/an apparent specific volume by a tapping method) obtained by dividing the apparent specific volume (mL/g) by the loose packing method by the apparent specific volume (mL/g) by the tapping method, is equal to or more than 1.50 and equal to or less than 2.50.
Dependencies are inferred from the claim text.