Ex parte BORS et al. - Page 3

          Appeal No. 95-0365                                                          
          Application 07/921,537                                                      

          for compositions which comprise a metal drier and, therefore, we            
          affirm Rejection I.  However, we agree with the appellants’ that            
          the claimed invention is not obvious over the applied prior and             
          we reverse Rejection II.                                                    
               The claimed invention is directed to an air-curing                     
          composition which comprises an acetoacetate functional polymer              
          and an end-blocked polyformaldehyde chain.  The polyformaldehyde            
          becomes functional only when the end-blocking group is removed.             
          According to the specification the present compositions “provide            
          a delayed cure mechanism which can be used to prepare coating               
          compositions having a range of desired properties.”                         
          Specification, p. 2, para. 1.                                               

                                     Rejection I                                      
               The examiner urges that the specification disclosure is only           
          enabling for compositions which contain a metal drier.  Paper No.           
          5, p. 2, para. 1.  To support his position, the examiner relies             
          on a statement in the specification that “[t]he autoxidation                
          process will take place without drier but it is impractically               
          slow, particularly at room temperature.”  Specification, p. 12,             


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

Last modified: November 3, 2007