Ex parte CHAMBERS et al. - Page 2




             Appeal No. 1996-0696                                                                                 
             Application 08/150,268                                                                               


             claims 10, 17, 18 and 22-25, which are all of the claims                                             
             remaining in the application.                                                                        
                                                THE INVENTION                                                     
                    Appellants claim a process for making a fluorinated ether                                     
             having a recited formula by reacting an ether which has a                                            
             specified formula and is in the vapor phase with a solid                                             
             transition metal fluoride selected from a recited Markush                                            
             group.  Claim 10 is illustrative and reads as follows:                                               
                    10. A                                           process for the                               
             preparation                                            of a fluorinated ether                        
             of the                                                 formula:                                      









             wherein R is hydrogen, R' is hydrogen or -CHFCF , and R" is                                          
                                                                            3                                     
             fluorine or perfluoroalkyl of 1 to 6 carbon atoms, which                                             
             comprises reacting an ether of the formula:                                                          




                                                       -2-2                                                       





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