Ex parte PHILLIPS et al. - Page 2




          Appeal No. 1996-2572                                                        
          Application No. 08/192,077                                                  


               This is an appeal pursuant to 35 U.S.C. § 134 from the                 
          final rejection of claims 1-19 and 23-27.                                   


               Claims 1 and 23 are representative and are reproduced                  
          below:                                                                      
               1.   A method for preparing an adhesive composition from               
          two components which method comprises:                                      
               A.   preparing a first component comprising a stable                   
          aqueous alkaline monohydroxylic phenolic resole resin solution              
          containing a methylene donor;                                               
               B.   preparing a second component comprising a stable                  
          aqueous resorcinolic resin precondensate having a shortage of               
          formaldehyde and containing a catalyst for the resole resin of              
          the first component; and                                                    
               C.   forming an adhesive composition by mixing said first              
          and second components; wherein the quantity of methylene donor              
          in said first component and catalyst in said second component               
          is sufficient to cause curing of the resin of the other                     
          component.                                                                  
               23. An alkaline adhesive composition having a pH of at                 
          least 9 and prepared by mixing:                                             
               A.   about 70 to 99 parts by weight of a first component               
          comprising a stable aqueous alkaline monohydroxylic phenolic                
          resole resin solution having a pH of at least 9 and containing              
          from about O.5% to 10%, based on the weight of the solution,                
          of a methylene donor; and                                                   
               B.   about 1 to 30 parts by weight of a second component               
          comprising a stable aqueous resorcinolic resin solution having              
          a pH of from about 6.5 to 8.5 and containing from about 5% to               
          25%, based on the weight of the resin, of a catalyst for the                
                                          2                                           





Page:  Previous  1  2  3  4  5  6  7  8  9  10  11  12  Next 

Last modified: November 3, 2007