Fly ash and cinder strengthened thermoplastic

Abstract

Strengthened thermoplastic materials use fly ash or cinders as extenders. The extended materials use fly ash or cinders that preferably contain no more than about 2% by weight of moisture. The thermoplastic materials are preferably foamed and extruded to form extruded closed cell foam articles, for example a window blind slat, shutter louver, shutter stile, or shutter frame. Thermoplastic materials formed with the fly ash or cinders can also be formed into non-foamed products or into pellets for use in later extruding to form products.

1 .- 19 . (canceled) 
     
     
         20 . A plastic composition comprising:
 a plastic material that is in a form to be mixable and dry with less than 2% by weight of moisture therewith and therein; and   a fly ash mixable with said plastic material,
 said fly ash comprising from about 1% to about 70% by weight of said plastic composition, and 
 said fly ash having been dried to remove moisture therefrom. 
   
     
     
         21 . The plastic composition of  claim 20  further including a foaming agent included therewith.