Optical elements comprising a fluorinated surface treatment...

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Reexamination Certificate

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Details

C428S407000, C428S325000, C428S327000

Reexamination Certificate

active

06884510

ABSTRACT:
The present-invention relates to optical elements comprising fluorochemical surface treatments. 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.

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Hawley's Condensed Chemical Dictionary, 13thed., revised by Richard J. Lewis, Sr., John Wiley & Sons, Inc., New York: 1997 pp. 906-907.*
Product Information: “Krytox®157 FS Fluorinated Oil,” Du Pont, Sep. 29, 2000.

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