Ex parte WATANABE - Page 4




          Appeal No. 95-3869                                                         
          Application 08/037,301                                                     



          composition.  However, the prior art solution or suspension                
          coating process does not include a heat treatment of the coated            
          particles.  Accordingly, comparative Example 1 does not contain a          
          heat treatment of the coated particle, contrary to the examiner's          
          contention.  The heating in comparative Example 1 is not a heat            
          treating of the coated particle, but is a heating of the                   
          dispersion of the polymer in hexane prior to the coating of the            
          carbon black particles.                                                    
               Thirdly, the examiner urges that the claims are not limited           
          to specific heat treatment temperatures or amounts of carbon               
          black, and are therefore not commensurate in scope with the                
          results relied on.  Again, we disagree with the examiner's                 
          position.  Examples 1-6 include a broad range of ratios of carbon          
          black to polymer and a variation of heat treatments.  Moreover,            
          the unexpected improvement in agglomeration and pore volume is             
          obtained in all six examples.  Accordingly, it is apparent that            
          the examiner has presented no basis for concluding that the                
          results are limited to a particular temperature or amount of               
          carbon black.                                                              





                                          4                                          





Page:  Previous  1  2  3  4  5  6  Next 

Last modified: November 3, 2007