Ex parte MILNER - Page 3




                 Appeal No. 95-3875                                                                                                                     
                 Application 08/049,613                                                                                                                 


                 wherein after the glove has been formed from a natural rubber latex, but before the                                                    
                 latex is cured, an antimicrobial layer is applied to the inner surface of the glove (col. 1,                                           
                                                           2                                                                                            
                 lines 44-51; col. 5, lines 27-34).   The antimicrobial layer is a low coefficient of friction                                          
                 elastomeric layer which includes an antimicrobial agent (col. 4, lines 7-27; col. 5, lines                                             
                           3                                                                                                                            
                 27-34).   Stockum states that the antimicrobial agent is expensive and that because the                                                
                 inner layer is a minor portion of the glove, the glove is more economical than it would                                                
                 be if the antimicrobial agent were incorporated in the entire glove (col. 1, line 66 - col.                                            
                 2, line 2).                                                                                                                            
                          Stephenson discloses coating any of a variety of surgical aids with an ionically                                              
                 bonded block elastomeric copolymer of a polyquaternary polyurethane and a                                                              
                 polyanionic polymer such as heparin (col. 1, lines 45-51; col. 2, lines 11-13).  A surgical                                            
                 aid so coated is receptive to treatment with an anionic or cationic antimicrobial                                                      
                 compound, and the antimicrobial compound can be applied by immersing the surgical                                                      
                 aid in an aqueous solution of the compound and then either drying the surgical aid or                                                  
                 using it without the drying step (col. 1, lines 51-52; col. 6, lines 27-31).  The                                                      
                 antimicrobial compound is retained by the elastomeric heparin polymer and is slowly                                                    


                          2Optionally, the antimicrobial layer can be applied to both the inside and outside                                            
                 surfaces of the glove (col. 2, lines 3-6).                                                                                             
                          3Alternatively, the antimicrobial agent can be included in a cornstarch powder                                                
                 layer, but such a powder layer is applied after the glove has been cured (col. 2, lines                                                
                 56-59; col. 2, line 62 - col. 3, line 2).                                                                                              
                                                                           3                                                                            





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