发明授权
- 专利标题： Compositions comprising solid particles entrapped in collapsed polymeric microspheres, and methods of making the same
- 专利标题（中）： 包含在收缩的聚合物微球中的固体颗粒的组合物及其制备方法
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申请号： US13426951申请日： 2012-03-22
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公开(公告)号： US08632816B2公开(公告)日： 2014-01-21
- 发明人: Milan F. Sojka , Phillip Cummins , Christina G. Fthenakis , Jean Harry Xavier
- 申请人： Milan F. Sojka , Phillip Cummins , Christina G. Fthenakis , Jean Harry Xavier
- 申请人地址： US NY New York
- 专利权人： ELC Management, LLC
- 当前专利权人： ELC Management, LLC
- 当前专利权人地址： US NY New York
- 代理商 Cynthia R. Miller
- 主分类号： A61Q17/04
- IPC分类号： A61Q17/04 ; A61Q19/00 ; A61K8/04 ; A61K8/02 ; A61K8/81
摘要：
The present invention relates to topical compositions containing solid particles that are stabilized via entrapment by microspheres and methods for making the same. Each of the microspheres contains a collapsed polymeric shell that has entrapped therein one or more solid particles. The solid particles are preferably formed of zinc oxide or titanium dioxide or both, which can readily be used either alone or in combination with other sunscreen agents to form sunscreen compositions of broader UV protection spectrum and enhanced photostability.