Patent ID: 7385089
Filing Date: 2008-06-10
Classification: C07C,C08G

Abstract:
1. 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 being branched at the carbon atom of the group's fluoroalkyl or perfluoroalkvl moiety that is adjacent to the group's carbonyl moiety, 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.