US 7,531,620 B2
Cross-linkable highly fluorinated poly(arylene ethers) for optical waveguide applications
Jianfu Ding, Ottawa (Canada); Michael Day, Gloucester (Canada); Tyler B. Norsten, Gatineau (Canada); Yinghua Qi, Ottawa (Canada); Claire L. Callender, Nepean (Canada); and Jia Jiang, Kanata (Canada)
Assigned to Her Majesty the Queen in Right et al., Ottawa (Canada)
Filed on May 19, 2005, as Appl. No. 11/132,240.
Claims priority of provisional application 60/572113, filed on May 19, 2004.
Prior Publication US 2005/0288483 A1, Dec. 29, 2005
Int. Cl. C08G 61/00 (2006.01); C08G 73/08 (2006.01); C08G 73/00 (2006.01)
U.S. Cl. 528—401  [528/397; 528/425; 528/486] 34 Claims
OG exemplary drawing
 
1. A compound of formula I:

OG Complex Work Unit Drawing

OG Complex Work Unit Drawing
x+y+z=1 and x=0 to 1, y=0 to 1, z=0 to 1 and R is CH3 or CF3 and R1 and R2 each represent a functional group with the proviso that the content of brominated bisphenol

OG Complex Work Unit Drawing
is at least 20 mol % relative to total bisphenols.