专利名称：Optical elements comprising a
polyfluoropolyether surface treatment
发明人：Mark J. Pellerite,Susannah C. Clear,Cheryl L.
Elsbernd,Richard M. Flynn,George Van DykeTiers,Naiyong Jing
申请号：US10037394申请日：20011024
公开号：US20020090515A1公开日：20020711
摘要：The present invention relates to optical elements comprising fluorochemicalsurface treatments. The invention further relates to materials such as retroreflectivesheetings, pavement markings and beaded projection screens comprising a binder andthe surface treated optical elements. The fluorochemical surface treatment issubstantially free of perfluoroalkyl groups having more than four carbon atoms.Preferably, the surface treatment is a polyfluoropolyether-based compound comprisingat least one polar group or polar group-containing organic radical.
申请人：3M INNOVATIVE PROPERTIES COMPANY
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