Fluorochemical ketone compounds and processes for their use
Assignee3M Innovative Properties Company
InventorsMichael G. Costello, Richard M. Flynn, Jay F. Schulz, George G. I. Moore
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Abstract
A fluorochemical ketone compound consists of two terminal, branched, independently fluoroalkylcarbonyl or perfluoroalkylcarbonyl groups and an intervening linear perfluoropolyether segment, each of the terminal groups optionally comprising at least one catenated heteroatom, and the perfluoropolyether segment consisting essentially of at least one tetrafluoroethyleneoxy moiety and, optionally, at least one difluoromethyleneoxy moiety, the moieties being randomly or non-randomly distributed within the perfluoropolyether segment.
Claims24
A fluorochemical ketone compound consisting of two terminal, branched, independently fluoroalkylcarbonyl or perfluoroalkylcarbonyl groups and an intervening linear perfluoropolyether segment, each of said terminal groups optionally comprising at least one catenated heteroatom, and said perfluoropolyether segment consisting essentially of at least one tetrafluoroethyleneoxy moiety and, optionally, at least one difluoromethyleneoxy moiety, said moieties being randomly or non-randomly distributed within said perfluoropolyether segment.
A perfluoroketone compound consisting of two, terminal perfluoroalkylcarbonyl groups and an intervening linear perfluoropolyether segment, each of said terminal groups optionally comprising at least one catenated oxygen atom, and said perfluoropolyether segment consisting essentially of at least one tetrafluoroethyleneoxy moiety and at least one difluoromethyleneoxy moiety, said moieties being randomly or non-randomly distributed within said perfluoropolyether segment.
Dependencies are inferred from the claim text.