Ex parte CHANE-CHING et al. - Page 3




            Appeal No. 1997-0359                                                                         
            Application No. 08/173,485                                                                   


                  metal cation M  to form (c) an aqueous colloidaln+                                                                    
                  dispersion of M  values, in respective amounts ofn+                                                                  
                  (a) and (b) effective to provide in the aqueous                                        
                  colloidal dispers-ion (c) a degree of                                                  
                  supersaturation r in OH  ions, wherein r is defined-                                                          
                  by the following equation,                                                             
                                     r = (n3 - n2)/n1                                                    


                  where n1 is the number of moles of M  values present inn+                                        
                  the colloidal dispersion(s), n2 is the number of moles of                              
                  OH  necessary to neutralize acidity introduced via the-                                                                                   
                  aqueous solution(s) of acidic metal cation(s) M , and n3  n+                           
                  is the total number of moles of OH  introduced by the base-                                            
                  reactant;                                                                              
                        (ii) contacting the resulting aqueous colloidal                                  
                  dispersion of M  values with (d) an organic phasen+                                                                  
                  comprising (dl) an organic liquid medium and (d2) an                                   
                  organic acid, to form (e) an aqueous/organic phase                                     
                  mixture; and                                                                           
                        (iii) separating mixture (e) into an aqueous                                     
                  phase and a product organic phase.                                                     
                  There is no art rejection on appeal.                                                   
                  Claims 14 through 21 and 23 through 34 stand rejected                                  
            under 35 U.S.C. § 112, first and second paragraphs.                                          
                  Reference is made to Appellants’ briefs  and the1                                      
            Examiner's answer for their respective positions.                                            

                  1A corrected brief was filed as paper no. 22.  A reply brief was also                  
            filed as paper no. 24 and its entry approved by the Examiner without a                       
            response [paper no. 25].  Both are considered in this appeal.                                
                                                    3                                                    





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