Abstract: Provided are amine-containing hydrofluoroether compounds represented by the following general formula (I), wherein (I) Y is a single bond or CF2 and wherein (i) Rf.1 and Rf2 are independently linear or branched perfluoroalkyl groups having with 1-8 carbon atoms and optionally comprise at least one catenated heteroatom, or (ii) Rf1 and Rf2 are bonded together to form a ring structure having 4-6 carbon atoms and optionally comprise one or more catenated heteroatoms; with the proviso that if Rf1 and Rf2 are bonded together to form a ring structure comprising a nitrogen heteroatom, said nitrogen heteroatom is tertiary and is bonded to a perfluoroalkyl group having 1-3 carbon atoms.
Type:
Application
Filed:
July 21, 2014
Publication date:
May 26, 2016
Applicant:
3M Innovative Prperties Company
Inventors:
Michael J. Bulinski, Michael G. Costello
Abstract: Pharmaceutical aerosol formulations comprising flunisolide, ethanol, and a propellant selected from the group consisting of 1,1,1,2-tetrafluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, and a mixture thereof.
Type:
Grant
Filed:
July 6, 1998
Date of Patent:
November 9, 1999
Assignee:
3M Innovative Prperties Company
Inventors:
Tsi-Zong Tzou, Robert K. Schultz, Danna L. Ross