Milan F. Sojka,Phillip Cummins,Christina G. Fthenakis,Jean Harry Xavier
申请号：
US13426951
公开号：
US08632816B2
申请日:
2012.03.22
申请国别(地区):
US
年份:
2014
代理人:
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.
