Ex Parte RICHTER et al - Page 2

               Appeal No. 2007-3827                                                                        
               Application 08/713,905                                                                      

               Advisory Action mailed May 13, 2003.  35 U.S.C. §§ 6 and 134(a) (2002);                     
               37 C.F.R. § 1.191(a) (2003).                                                                
                      We affirm the decision of the Primary Examiner.                                      
                      Claims 1 and 3 illustrate Appellants’ invention of a process for the                 
               production of an ether (poly)isocyanate and ether (poly)isocyanate products,                
               and are representative of the claims on appeal:                                             
               1.  A process for the production of an ether (poly)isocyanate having a                      
               hydrolyzable chlorine content less than or equal to 48 ppm from an ether                    
               (poly)amine comprising reacting                                                             
                      a)  an ether (poly)amine                                                             
               with at least a stoichiometric amount (based on the number of primary amine                 
               groups present in a)) of                                                                    
                      b)  phosgene or a compound which generates phosgene under the                        
               reaction conditions                                                                         
               in the vapor phase at a temperature of from about 50 to about 800°C under                   
               pressure.                                                                                   
               3.  An ether isocyanate selected from the group consisting of 2-(2-                         
               isocyanato-propoxy)-1-propyl isocyanate, 1,1'-oxydi-2-propyl isocyanate,                    
               2,2'-oxydi-1-propyl isocyanate and mixtures thereof having a hydrolyzable                   
               chlorine content of no more than 43 ppm.                                                    
                      The Examiner relies on the evidence in these references:                             
               Lehmann   US 3,267,122   Aug. 16, 1966                                                      
               Joulak   US 5,391,683   Feb.  21, 1995                                                      
               Biskup   US 5,449,818   Sep.  12, 1995                                                      
               Bischof   US 5,516,935   May  14, 1996                                                      
                      Appellants request review of the following grounds of rejection all                  
               advanced on appeal (Br. 3):                                                                 
               Claims 1 through 4 under 35 U.S.C. § 112, first paragraph, as containing                    
               subject matter which was not described in the specification in such a way as                
               to reasonably convey to one skilled in the relevant art that the inventor(s), at            


                                                    2                                                      

Page:  Previous  1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  Next

Last modified: September 9, 2013