Ex parte KNAUF - Page 3




          Appeal No. 1997-1516                                                        
          Application No. 08/326,501                                                  


               Fagan                         4,783,354           Nov. 08,             
          1988                                                                        
               Appellant's claimed invention is directed to a release                 
          liner carrier web comprising a paper substrate, a                           
          polypropylene coating on one side of the substrate, and a                   
          protective sealing layer, such as an acrylic resin, on the                  
          other side of the substrate.  Appealed claim 2 additionally                 
          recites a silicone release layer on the polypropylene layer.                
          According to appellant, the sealant, or undercoat, layer                    
          "traps loose fibers of the paper substrate and                              


          prevents them from clogging machinery associated with the                   
          production or handling the release sheet." (page 3 of                       
          principal brief).  In addition, appellant explains that the                 
          protective sealant layer "promotes ready peelability of a                   
          suitable label from the present release sheet" by seeping                   
          through the substrate and contacting the silicone release                   
          layer (page 3 of principal brief).                                          
               Appealed claims 1, 2, 6, 8 and 9 stand rejected under 35               
          U.S.C. § 102(b) over Hosoda.  The appealed claims also stand                
          rejected under 35 U.S.C. § 103 as follows:                                  
                                          3                                           





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