Back to results
US 6,743,262 B1Granted
Perfluoroalkyl haloalkyl ethers and compositions and applications thereof
Assignee3M Innovative Properties Company
InventorsFrederick E. Behr, Richard M. Flynn
Life of this patent
Estimating the term…
Abstract
Described are compositions comprising perfluoroalkyl haloalkyl ethers and, optionally, surfactant; uses for perfluoroalkyl haloalkyl ether compounds and compositions thereof, optionally comprising surfactant; and perfluoroalkyl haloalkyl ethers.
Claims9
A process for removing contaminants from a substrate, the process comprising the step of contacting the substrate with a composition comprising a perfluoroalkyl haloalkyl ether of the formula:
- Rf—O—CxHyFwXz;
- wherein Rf is a perfluoroalkyl;
- x is in the range from 1 to 6;
- y is at least one;
- w is in the range from 0 to about 2, X is a halogen chosen from the group consisting of bromine, iodine, and chlorine;
- z is at least one;
- and w+y+z is equal to 2x+x1.
4 more elements
Dependencies are inferred from the claim text.