Invention Grant
- Patent Title: Zinc oxide particle, method for producing the same, ultraviolet shielding agent, and cosmetic
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Application No.: US15107823Application Date: 2014-12-25
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Publication No.: US09775787B2Publication Date: 2017-10-03
- Inventor: Satoru Sueda , Mitsuo Hashimoto , Mizuho Wada
- Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.
- Applicant Address: JP Osaka
- Assignee: SAKAI CHEMICAL INDUSTRY CO., LTD.
- Current Assignee: SAKAI CHEMICAL INDUSTRY CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2013-271785 20131227
- International Application: PCT/JP2014/084207 WO 20141225
- International Announcement: WO2015/098993 WO 20150702
- Main IPC: A61K8/02
- IPC: A61K8/02 ; A61K8/29 ; A61K8/27 ; C09C1/04 ; A61Q17/04 ; A61K8/19

Abstract:
It is one of the objects of the present disclosure to provide hexagonal prism-shaped zinc oxide particles having improved ultraviolet shielding ratio at the wavelength of 400 nm or less without impairing the direct transition properties of electronic excitation thereof and having remarkably improved ultraviolet shielding ratio for UV-B radiation and UV-A radiation; and a zinc oxide particle containing a solid solution of a Ti element and/or a Fe element and a Zn element in at least a portion thereof, and having a hexagonal prism shape.
Public/Granted literature
- US20160331650A1 ZINC OXIDE PARTICLE, METHOD FOR PRODUCING THE SAME, ULTRAVIOLET SHIELDING AGENT, AND COSMETIC Public/Granted day:2016-11-17
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