Patent ID: 8350094

Claim:
A fluorinated ether represented by the formula Y—R f 1 —CH 2 OCH 2 R f 2 wherein R f 1 is selected from the group consisting of derivatives of perfluorinated alkylene groups having from 1 to 10 carbon atoms wherein one or more carbon atoms are replaced by catenated heteroatoms, and derivatives of partially fluorinated alkylene groups having from 1 to 10 carbon atoms wherein one or more carbon atoms are replaced by catenated heteroatoms, wherein if R f 1 contains at least two carbon atoms, then R f 1 contains at most two hydrogen atoms; and Y represents H, or an R f 2 CH 2 OCH 2 — group, wherein R f 2 is selected from the group consisting of perfluorinated alkyl groups having from 1 to 10 carbon atoms and partially fluorinated alkyl groups having from 1 to 10 carbon atoms, and derivatives thereof wherein one or more carbon atoms are replaced by catenated heteroatoms, wherein if R f 2 contains at least two carbon atoms, then R f 2 contains at most three hydrogen atoms; and wherein if Y—R f 1 — contains an HCF 2 — group then R f 2 does not contain a —CF 2 H group.