Invention Grant
US09072918B2 Method of formulating zinc oxide powder blends for balanced UVA/UVB attenuation
有权
配制氧化锌粉末混合物以平衡UVA / UVB衰减的方法
- Patent Title: Method of formulating zinc oxide powder blends for balanced UVA/UVB attenuation
- Patent Title (中): 配制氧化锌粉末混合物以平衡UVA / UVB衰减的方法
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Application No.: US12328631Application Date: 2008-12-04
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Publication No.: US09072918B2Publication Date: 2015-07-07
- Inventor: David Schlossman , Yun Shao
- Applicant: David Schlossman , Yun Shao
- Applicant Address: US NJ South Plainfield
- Assignee: Kobo Products, Inc.
- Current Assignee: Kobo Products, Inc.
- Current Assignee Address: US NJ South Plainfield
- Agency: Handal & Morofsky LLC
- Main IPC: A61Q17/04
- IPC: A61Q17/04 ; A61K8/27 ; B82Y5/00
Abstract:
Disclosed is a composition that comprises an effective proportion of a first metal oxide powder having a primary particle size and a secondary particle size selected for the first metal oxide powder to attenuate UVA and an effective proportion of a second metal oxide powder having a secondary particle size selected for the second metal oxide powder to attenuate UVB. The mean secondary particle size of the first metal oxide powder is greater than the mean secondary particle size of the second metal oxide powder. In one embodiment, the first and the second metal oxide powders are both zinc oxide.
Public/Granted literature
- US20090148481A1 METHOD OF FORMULATING ZINC OXIDE POWDER BLENDS FOR BALANCED UVA/UVB ATTENUATION Public/Granted day:2009-06-11
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