Surface-modified zinc oxide particles, dispersion solution, and cosmetic
Grant
US12576012B2
Kind: B2
Mar 17, 2026
Assignee
SUMITOMO OSAKA CEMENT CO., LTD.
Inventors
Syunsuke Suma, Masahiro Nobe
Abstract
Surface-modified zinc oxide particles having a silane coupling agent having an alkoxy group on surfaces thereof, in which the surface-modified zinc oxide particles have 5.0×10-2 g2/s or more and 1.0×102 g2/s or less of a penetration rate coefficient A of cyclopentasiloxane with respect to the surface-modified zinc oxide particles, which is indicated by A in the following formula (1). W2=A·t (1) (in the formula, W is a penetration weight (unit: g), and t is a time (unit: s).).
CPC Classifications
A61K 2800/412
A61K 2800/612
A61K 2800/623
A61K 2800/651
A61K 2800/01
A61K 8/0245
A61K 8/04
A61K 8/27
A61K 8/585
A61K 8/89
A61Q 1/00
A61Q 1/02
A61Q 17/04
A61Q 19/00
C01G 9/02
C01P 2006/12
C01P 2006/64
C09C 1/043
C09C 3/12
Filing Date
2020-04-30
Application No.
17997352
Claims
12