Ex parte ST. CLAIR - Page 5




          Appeal No. 1997-0282                                                        
          Application No. 08/423,438                                                  



          have either suggested reacting prepolymers with isocyanate                  
          compounds to solidify green bond and/or using the block                     
          copolymer of Gergen as the block copolymer of the adhesive                  
          composition described in Markevka for purposes of improving                 
          its property.  However, we do not find any suggestion in the                
          applied prior art to cap the block copolymer of Gergen with                 
          isocyanate compounds to arrive at the claimed block copolymer.              
          Nor do we find any reasonable expectation of success in the                 
          applied prior art that isocyanate compounds useful for                      
          improving the structure of a prepolymer would also be useful                
          for improving the structure of the block copolymer of the type              
          described in Gergen.  On this record, we concur with appellant              
          that the examiner has not established a prima facie case of                 
          obviousness within the meaning of 35 U.S.C.                                 
           103.                                                                      
               In view of the foregoing, the decision of the examiner is              
          reversed.                                                                   
               No time period for taking any subsequent action in                     
          connection with this appeal may be extended under 37 CFR                    
           1.136(a).                                                                 

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