COMPOSITIONS COMPRISING SOLID PARTICLES ENTRAPPED IN COLLAPSED POLYMERIC MICROSPHERES, AND METHODS OF MAKING THE SAME
摘要
The present invention relates to topical compositions containing solid particles that are stabilized via entrapment by microspheres. 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.
申请公布号
WO2009079135(A3)
申请公布日期
2009.08.27
申请号
WO2008US83607
申请日期
2008.11.14
申请人
ELC MANAGEMENT LLC;SOJKA, MILAN F.;CUMMINS, PHILLIP;FTHENAKIS, CHRISTINA G.;XAVIER, JEAN HARRY
发明人
SOJKA, MILAN F.;CUMMINS, PHILLIP;FTHENAKIS, CHRISTINA G.;XAVIER, JEAN HARRY