• Patent Title: SURFACE-MODIFIED ZINC OXIDE PARTICLES, DISPERSION LIQUID, COSMETIC PREPARATION, AND METHOD FOR PRODUCING SURFACE-MODIFIED ZINC OXIDE PARTICLES
  • Application No.: US18278176
    Application Date: 2022-02-21
  • Publication No.: US20240139085A1
    Publication Date: 2024-05-02
  • Inventor: Syunsuke SUMA
  • Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
  • Applicant Address: JP Tokyo
  • Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
  • Current Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
  • Current Assignee Address: JP Tokyo
  • Priority: JP 21026315 2021.02.22 JP 21026403 2021.02.22
  • International Application: PCT/JP2022/006902 2022.02.21
  • Date entered country: 2023-08-21
  • Main IPC: A61K8/27
  • IPC: A61K8/27 A61Q17/04
SURFACE-MODIFIED ZINC OXIDE PARTICLES, DISPERSION LIQUID, COSMETIC PREPARATION, AND METHOD FOR PRODUCING SURFACE-MODIFIED ZINC OXIDE PARTICLES
Abstract:
Surface-modified zinc oxide particles of the disclosure are surface-modified zinc oxide particles in which the particle surfaces of zinc oxide particles are treated with a hydrolyzable surface treatment agent, in which the color difference ΔE before and after irradiation with simulated sunlight is 4.0 or lower.
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