Ex parte COLLINS et al. - Page 9




                 Appeal No. 1998-3106                                                                                                                   
                 Application 08/679,603                                                                                                                 


                          Accordingly, we conclude that the appellants’ claimed                                                                         
                 invention would have been obvious to one of ordinary skill in                                                                          
                 the art within the meaning of 35 U.S.C. § 103 over Schulz in                                                                           
                 view of Antonen, Bilgrien and Gray.2                                                                                                   
                                Rejection of claims 1, 3-8, 12 and 13 over Schulz                                                                       
                                                in view of Antonen and Bilgrien                                                                         
                          Antonen discloses a curable polyorganosiloxane                                                                                
                 composition which includes a liquid polydiorganosiloxane                                                                               
                 containing two vinyl radicals per molecule, an                                                                                         
                 organohydrogensiloxane containing at least three silicon                                                                               
                 bonded hydrogen atoms per molecule in an amount sufficient to                                                                          
                 cure the vinyl containing materials in the composition, and a                                                                          
                 platinum-containing catalyst in an amount sufficient to                                                                                
                 promote curing of the vinyl containing materials (col. 3,                                                                              
                 lines 12-21).  These components are similar to components used                                                                         
                 by Schulz (col. 2, lines 6-27).  Antonen also includes in the                                                                          
                 composition a moisture curable organosiloxane material                                                                                 
                 comprised of at least one hydroxyl terminated                                                                                          
                 polydiorganosiloxane and at least one silane containing at                                                                             


                          2A discussion of Antonen is not necessary to our decision                                                                     
                 as to this rejection.                                                                                                                  
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