Ex parte SPENCER - Page 5




          Appeal No. 2000-0605                                                        
          Application No. 08/803,779                                                  


               Mueller discloses a multi-layer flexible film for use as               
          a replacement for PVC in forming pouches to supply liquids                  
          such as medical solutions for parenteral administration.                    
          These pouches should be collapsible, transparent, strong and                
          capable of resisting high temperatures required for heat                    
          sterilization of their contents.  The film comprises a sealant              
          layer of an ethylene propylene copolymer or modified ethylene               
          propylene copolymer, a core layer of a very low density                     
          polyethylene and an outer layer of a flexible polyester or                  
          copolyester (copolymer of polyether and polyethylene                        
          terephthalate; a poly-ether-ester).  Mueller discloses                      
          blending a high molecular weight stabilizer such as IrganoxTM               
          1010 available from Ciba-Geigy Corporation into the polyester               
          or copolyester outer layer prior to extrusion of the film to                
          limit the migration of extractables from the outer layer into               
          a medical solution contained in the pouch (col. 3, lines 52-                
          61).                                                                        
                                    Rejection (1)                                     
               Claim 13, the sole independent claim on appeal, recites a              
          container for use in an assembly adapted for transferring                   
          medical fluid, wherein the container is made from a                         
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