Polyurethane foam composition and additive useful in shoe sole applications and methods of making same

Abstract

The invention is directed to polyurethane foam shoe soles containing an additive comprising a mixture of polyethylene wax and PTFE (polytetrafluoroethylene), and to polyol components containing the additive. The additive is produced to include the mixture at a density from greater than 0.97 to about 1.1 times the density of the polyol component.

1 . A composition of matter comprising: 
 a) a polyol component comprising at least one polyoxyalkylene polyether polyol, and    b) an additive comprising: 
 1) a mixture of polyethylene and PTFE  
 wherein said mixture has a density from greater than 0.97 to about 1.1 times the density of the polyol component.  
   
     
     
         2 . The composition of matter of  claim 1  wherein said mixture has a density from about 1.0 to about 1.1 times the density of the polyol component.  
     
     
         3 . The composition of matter of  claim 1  wherein said mixture comprises particles having a maximum particle size of less than 125 microns.  
     
     
         4 . The composition of matter of  claim 1  wherein said mixture comprises particles having a mean particle size from about 1 microns to about 25 microns.  
     
     
         5 . The composition of matter of  claim 1  wherein said mixture comprises a homogeneous blend of said polyethylene and PTFE.  
     
     
         6 . An additive for a polyol component useful in making polyurethane comprising: 
 at least one polyoxyalkylene polyether polyol and    a mixture comprising: 
 polyethylene and  
 PTFE  
 wherein said mixture has a density ranging from greater than 0.97 to about 1.1 times the density of the polyol component; and  
 the ratio of the at least one polyoxyalkylene polyether polyol to the mixture is from about 1:1 to about 1:10.  
   
     
     
         7 . The additive of  claim 6  wherein the mixture is present in amounts ranging from 0.1 to 12 weight percent based on the total amount of the at least one polyoxyalkylene polyether polyol.  
     
     
         8 . The additive of  claim 6  wherein said mixture has a density ranging from about 1.0 to about 1.1 times the density of the polyol component.  
     
     
         9 . The additive of  claim 6  wherein said mixture comprises particles having a maximum particle size of less than 125 microns.  
     
     
         10 . The additive of matter of  claim 6  wherein said mixture comprises particles having a mean particle size ranging from 1 to 25 microns.  
     
     
         11 . The additive of  claim 6  wherein said mixture comprises a homogeneous blend of said polyethylene and PTFE.  
     
     
         12 . An additive for an polyisocyanate component useful in making polyurethane comprising: 
 an organic polyisocyanate or organic polyisocyanate prepolymer and    a mixture comprising: 
 polyethylene and  
 PTFE  
 wherein said mixture has a density ranging from greater than 0.97 to about 1.1 times the density of the polyisocyanate component.  
   
     
     
         13 . The additive of  claim 12  wherein the mixture is present in amounts from 0.1 to 12 weight percent based on the total amount of the polyisocyanate component.  
     
     
         14 - 27 . (Cancelled)