Patent ID: 7459512
Filing Date: 2008-12-02
Classification: C07C,C07D

Abstract:
1. A process for preparing a fluorinated polymer suitable for use in the formation of transparent optical fiber for use as a light transmission medium by copolymerizing (i) perfluoroalkyl vinyl ether represented by Formula 1 below: wherein R  is a perfluoro cyclohexyl, perfluorophenyl, perfluorodioxanyl or perfluorodioxalanyl group, (ii) perfluorinated olefin monomer in a chlorofluorinated solvent in the presence of a periluorinated radical initiator, wherein the molar ratio of (i):(ii) is between 99:1 and 50:50, and (iii) a fluorinated monomer represented by Formula 5 below: wherein R  is a perfluoro cyclohexyl, perfluorophenyl, perfluorodioxanyl or perfluorodioxalanyl group, and wherein no C—H bonds are present in the resulting fluorinated polymer.