US2009054594A1PendingUtilityA1

Fluoropolymer low reflecting layers for plastic lenses and devices

Assignee: FEIRING ANDREW EDWARDPriority: Mar 16, 1999Filed: Oct 23, 2007Published: Feb 26, 2009

Est. expiryMar 16, 2019(expired)· nominal 20-yr term from priority

Inventors:Andrew Edward Feiring Tatsuhiro Takahashi Mureo Kaku Ronald Earl Uschold Robert Clayton Wheland Sawato Iwato

C08J 7/0427Y10T428/31507C09D 131/04C08F 214/18Y10T428/31504C08F 214/26C08J 2427/00C08F 214/28C09D 127/18Y10T428/31786Y10T428/265C09D 127/20C09D 127/16C09D 127/12Y10T428/3154C08L 2205/02Y10T428/31935C08F 218/08C08J 7/043

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Abstract

A one or two layer coating system has been developed for plastic substrates. The one coating system low reflective layer consists of a fluorinated copolymer having the formula: VF2/TFE/HFP, VF2/HFP or VF2/TFE/PMVE. In the two coating system, the upper coating layer consists of TFE/HFP, VF 2 /TFE/HFP, or TFE/Perfluorodioxole, and the lower coating layer consists of VF 2 /TFE/HFP, VF/TFE/HFP, VAc/TFE/HFIB, or TFE graft to PVOH.

Claims

exact text as granted — not AI-modified

1 - 12 . (canceled) 
   
   
       13 . A composition prepared by the polymerization of vinyl acetate (VAc, CH 3 —C(O)—OCH═CH 2 ), tetrafluoroethylene (CF 2 ═CF 2 ), and hexafluoroisobutylene ((CF 3 )2C═CH 2 ). 
   
   
       14 - 23 . (canceled)

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