Fluorocarbon ethers having substituted halogen site(s) and process to prepare
AssigneeThe Dow Chemical Company
InventorsBobby R. Ezzell, William P. Carl, William A. Mod
Life of this patent
Estimating the term…
Abstract
Novel perhalofluoro ethers and methods for preparing the same having generic formula, ##STR1## wherein a=0 or an integer greater than O; b=0 or an integer greater than O; n=zero or an integer greater than zero; R.sub.f and R'.sub.f are each independently selected from the group consisting of F, perfluoroalkyl and fluorochloroalkyl; X=F, Cl or Br; X'=Cl or Br; Y is an acid group or a group easily convertible to an acid group; Z=F, Cl, Br, OH, NRR' or OA; R and R' are independently selected from the group consisting of hydrogen, an alkyl having one or more than one carbon atom and aryl; A=alkali metal, quaternary nitrogen, or R.
Claims17
As a composition of matter the compounds represented by the general formula:
- ##STR43## where a=an integer from, and including, 0 to 3;
- b=an integer from, and including, 0 to 3;
- m=an integer from, and including 0 to 6;
- n=an integer from and including 0 to 6;
- R.sub.f and R.sub.f ' are each independently selected from the group consisting of F, Cl, perfluoroalkyl and fluorochloroalkyl;
- X=F, Cl, Br, or mixtures thereof when n>1;
- X'=Cl, Br, or mixtures thereof;
- Y is selected from the group consisting of ##STR44## Z' is F, Cl, Br, OH, NRR' or OA R and R' are independently selected from the group consisting of hydrogen, an alkyl having one or more than one carbon atom and an aryl;
- Z=F, Cl, Br, OH, NRR' or OA;
- R and R' are independently selected from the group consisting of hydrogen, an alkyl having one or more carbon atom and aryl;
- A=alkali metal, quaterary ammonium or R.
Dependencies are inferred from the claim text.