The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2008
Filed:
Dec. 06, 2006
Michael G. Costello, Afton, MN (US);
Richard M. Flynn, Mahtomedi, MN (US);
Jay F. Schulz, Inver Grove Heights, MN (US);
George G. I. Moore, Afton, MN (US);
Michael G. Costello, Afton, MN (US);
Richard M. Flynn, Mahtomedi, MN (US);
Jay F. Schulz, Inver Grove Heights, MN (US);
George G. I. Moore, Afton, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
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.