Lateral liner substrates

Abstract

A liner material suitable for a pipe comprising a substrate having inner and outer surfaces including a coating of impermeable resin on the outer surface of the substrate, characterized in that the substrate with the coating resists substantial delamination at temperatures of greater than 150° F., has a kinetic coefficient of friction of ≦0.8, and a flex modulus of less than 200,000 psi.

1 . A liner material suitable for a pipe comprising: 
 a. a substrate having inner and outer surfaces;    b. a coating of impermeable resin on said outer surface of said substrate;    characterized in that said substrate with said coating resists substantial delamination at temperatures of greater than 150° F., a kinetic coefficient of friction of ≦0.8, and a flex modulus of less than 200,000 psi.    
   
   
       2 . The substrate of  claim 1  wherein said substrate is a material selected from a group consisting of non-woven, felt, loop knit, foam, spacer fabric, or fiberglass scrim.  
   
   
       3 . The substrate of  claim 1  wherein said substrate is a non-woven material.  
   
   
       4 . The substrate of  claim 3  wherein said non-woven material is a polyester non-woven material.  
   
   
       5 . The substrate of  claim 1  wherein said resin is chemically reacted on said outer surface.  
   
   
       6 . The substrate of  claim 5  wherein said resin is a thermoset polymer system.  
   
   
       7 . The substrate of  claim 6  wherein said thermoset polymer system comprises a polyurethane polymer.  
   
   
       8 . The substrate of  claim 6  wherein said thermoset polymer comprises a polyurea polymer.  
   
   
       9 . The substrate of  claim 6  wherein said thermoset polymer comprises a polyisocyanurate polymer.  
   
   
       10 . The substrate of  claim 1  wherein said coating has a thickness of ≦0.010″.  
   
   
       11 . The liner material of  claim 1  further comprising a coating of impermeable resin on said inner surface of said substrate.  
   
   
       12 . The substrate of  claim 11  wherein said resin is chemically reacted on said inner surface.  
   
   
       13 . The substrate of  claim 12  wherein said resin is a thermoset polymer system.  
   
   
       14 . A conduit lined with a lining material comprising: 
 (a) a conduit having an interior surface    (b) a substrate having inner and outer surfaces, including a coating of impermeable resin on said outer surface of said substrate characterized in that said substrate with said coating resists substantial delamination at temperatures of greater than 150° F., wherein said coating has a kinetic coefficient of friction of ≦0.8 and flex modulus of less than 200,000 psi.    
   
   
       15 . The conduit of  claim 14  wherein said pipe has an inner diameter of about 3.0-8.0 inches.  
   
   
       16 . The conduit of  claim 14  wherein said substrate has been impregnated on said inner surface with a thermoset resin.  
   
   
       17 . The conduit of  claim 16  wherein said substrate has been impregnated on said inner surface with an unsaturated polyester resin.  
   
   
       18 . The conduit of  claim 14  wherein said impermeable resin forming said coating is chemically reacted on said substrate.  
   
   
       19 . The conduit of  claim 14  further comprising a coating of impermeable resin on said inner surface of said substrate.