Ex parte MITCHELL et al. - Page 6




          Appeal No. 1997-1069                                                        
          Application No. 08/234,959                                                  

          be less susceptible to gel and speck formation.  See the                    
          Brief,                                                                      
          page 2 and the specification, page 9, line 32 to page 10, line              
          30.                                                                         
               As evidence of obviousness of the claimed subject matter               
          under 35 U.S.C. § 103, the examiner relies on the disclosure                
          of Furrer.  Appellants do not dispute that Furrer describes a               
          polyolefin grafting process corresponding to the claimed                    
          process, except for the claimed carrier polymer.  Compare the               
          Answer, pages 3-6, with the Brief and Reply Brief in their                  
          entirety.  As found by the examiner (the Answer, page 3),                   
          Furrer describes using a carrier polymer in its polyolefin                  
          grafting process.  See, e.g., column 4, lines 20-40.  Furrer                
          teaches that the carrier polymer can be chosen from various                 
          high and low density polyethylene and polypropylenes, ethylene              
          vinyl acetate copolymers, high and low density polyethylenes,               
          linear low density polyethylenes, homopolymers of an alpha-                 
          olefin having 2 to 6 carbon atoms and copolymers of two alpha-              
          olefins.  See column 4, lines 43-48 and column 5, lines 1-2                 
          and 16-20.                                                                  
               The examiner recognizes that Furrer does not state that                

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