Ex Parte 6365387 et al - Page 30

             Appeal No. 2007-0111                                                                                
             Reexamination 90/006,297                                                                            
        1                                                                                                        
        2          91. In addition, the ‘097 specification stated (page 6):                                      
        3                        It has been found, also, that even when ethylene is                             
        4                 polymerized with the aid of the special promoters                                      
        5                 obtained by reaction of the heavy metal and metal alkyl                                
        6                 compounds, in the ratios proposed for promoting                                        
        7                 ethylene polymerization, the presence of any substantial                               
        8                 amount of the higher olefines inhibits polymerization of                               
        9                 the ethylene, while the higher olefines, if they react at all,                         
       10                 do so only at very low reaction rates and, in any case,                                
       11                 without yielding polymers of the type with which this                                  
       12                 invention is concerned.  [Emphasis added.]                                             
       13                                                                                                        
       14          92. The ‘097 specification  states (page 12):                                                 
       15                 The method of this invention may be used for                                           
       16                 polymerizing vinyl hydrocarbons of the formula given                                   
       17                 including propylene, butene-1, pentene-1, hexene-1,                                    
       18                 styrene, and so on, as well as mixtures thereof and                                    
       19                 mixtures of the vinyl hydrocarbon with small amounts of                                
       20                 ethylene.  [Emphasis added.]                                                           
       21                                                                                                        
       22          93. Application 03/710,840 contained the following (specification, page                       
       23                 1):                                                                                    
       24                 This invention relates to a process for polymerizing                                   
       25                 unsaturated hydrocarbons of the formula                                                
       26                        CH2 = CHR                                                                       
       27                 in which R is a saturated aliphatic, an alicyclic or an                                
       28                 aromatic radical, alone, in mixture with one another, or in                            
       29                 mixture with small amounts, up to about 5%, of a                                       
       30                 monomer polymerizable therewith.                                                       
       31                 Uniquely, the initial polymerization products obtained by                              
       32                 the present method are mixtures of linear, head-to-tail                                
       33                 amorphous and crystalline polymers having no branches                                  
       34                 longer than R.  The polymers can be separated from the                                 
       35                 polymerizate by fractional dissolution.  The crystalline                               

                                                       30                                                        

Page:  Previous  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  Next

Last modified: September 9, 2013