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Assignee3M Innovative Properties Company
InventorsNaiyong Jing, Zhongxing Zhang, Zai-Ming Qiu
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The present invention relates to optical elements comprising fluorochemical surface treatments having the general structure Rf-[G]m(CH2)n—X wherein Rf is a fluorinated alkyl group, G is a divalent linking group selected from oxygen (—O—) and sulfonamido (—SO2R—), m is an integer ranging from 0 to 1, n is an integer ranging from 1 to 24, and X is polar group or polar group containing radical. The invention further relates to materials such as retroreflective sheetings, pavement markings and beaded projection screens comprising a binder and the surface treated optical elements.
Optical elements having a surface treatment comprising a fluorochemical having the general structure Rf-[G]n(CH2)m—X wherein Rf is a fluorinated alkyl group, G is a divalent linking group selected from oxygen and sulfonamido, n is an integer ranging from 0 to 1, m is an integer ranging from 2 to 24, and X is a polar group or polar group containing radical.
Dependencies are inferred from the claim text.