Perfluoroaminoethers
AssigneeMinnesota Mining and Manufacturing Company
InventorsGeorge G. I. Moore, John C. Hansen
Life of this patent
Estimating the term…
Abstract
Perfluoroaminoethers are provided. The perfluoroaminoethers have two or more tertiary amino nitrogen atoms each of which is connected to the other(s) adjacent thereto by (1) a catenary, ether oxygen-containing, perfluoroalkylene linking group the catenary carbon atoms of which are in the form of segments of vicinal carbon atoms that are 2 to 4 in number, said segments having up to 5 carbon atoms, a catenary ether oxygen-containing perfluorocyclohexylene linking group, or (3) a catenary ether oxygen-containing linking group having perfluoroalkylene and perfluorocyclohexylene moieties, the sum of the catenary ether oxygen atoms being 1 to 6.
Claims21
Perfluorinated aminoether compositions comprising perfluoroaminoethers having two or more tertiary amino nitrogen atoms each of which is connected to the other(s) adjacent thereto by (1) a catenary, ether oxygen-containing perfluoroalkylene linking group, the catenary carbon atoms of which are in the form of perfluoroalkylene segments of carbon atoms that are 2 to 4 in number, said segments having up to 5 carbon atoms, (2) a catenary ether oxygen-containing perfluorocyclohexylene linking group, or (3) a catenary ether oxygen-containing linking group having said perfluoroalkylene segments and perfluorocyclohexylene moieties, the sum of the catenary ether oxygen atoms in said linking groups being 1 to 3 and each of the terminal amino nitrogen atoms having bonded thereto two perfluoroalkyl radicals.
Perfluorinated aminoether compositions comprising perfluoroaminoethers having the general formula ##STR42## where each R.sup.1 and R.sup.2 is independently selected from perfluoroalkyl radicals, each R.sup.3 is independently selected from acyclic perfluoroalkylene groups having 2 to 5 carbon atoms at least 2 of which are vicinal, catenary atoms, perfluorocyclohexylene, and groups having said perfluoroalkylene group and said perfluorocyclohexylene, and n is 1 to 3.
Perfluorinated aminoether compositions comprising perfluoroaminoethers having the general formula ##STR46## where each R.sup.1 and R.sup.2 are independently selected from perfluoroalkyl radicals, each R.sup.3 is independently selected from acyclic perfluoroalkylene groups having 2 to 5 carbon atoms at least 2 of which are vicinal, catenary atoms, perfluorocyclohexylene groups, and groups having said perfluoroalkylene group and said perfluorocyclohexylene, R.sup.4 is a perfluoroalkyl radical having one to six carbon atoms, or perfluorocyclohexyl, and n is 1 to 3 and p is 0 or 1.
Dependencies are inferred from the claim text.