Patent ID: 6946534
Filing Date: 2005-09-20
Classification: G02B

Abstract:
1. Fluorinated polyethers having a fluorinated aliphatic group at a main chain, which are represented by the following formula (1): where R F represents OCH 2 (CF 2 ) n CH 2 O, or OCH 2 CF 2 O(CF 2 CF 2 O) n CF 2 CH 2 O, where n is a natural number ranging from 1 to 12; Ar  where B is not present or a C═O group, or Ar  where Hal is one selected from F, Cl, Br and I; Ar  where D is one selected from —C(CF Ar  where R Ar E represents H, or  where P is H or a substituted or unsubstituted phenyl group; x is a number ranging from 0.1 to 1.0; y is 1.0−x.