Laminated paper stocks and flexible packaging made therefrom

Abstract

A laminated paper stock made of at least one biaxially oriented polymeric film, an adhesive material and a paper substrate. A flexible packaging for wrapping paper comprised on the laminated paper stock is also provided as well as related methods of manufacture.

What is claimed is:  
     
         1 . A laminated paper stock comprised of: 
 at least one biaxially oriented polymeric film;    an adhesive material; and    a paper substrate.    
     
     
         2 . The paper stock according to  claim 1 , wherein said biaxially oriented polymeric film is selected from the group consisting of polypropylene, polyester, nylon, polystyrene and polyethylene.  
     
     
         3 . The paper stock according to  claim 2 , wherein said polyethene is selected from the group consisting of low density polyethylene (LDPE), linear low density polyethylene (LLDPE), metallocene low density polyethylene (m-LDPE) and high density polyethylene (HDPE).  
     
     
         4 . The paper stock according to  claim 1 , wherein said adhesive material is selected from the group consisting of low density polyethylene (LDPE), linear low density polyethylene (LLDPE), metallocene low density polyethylene (m-LDPE), high density polyethylene (HDPE), polypropylene (PP), ethylene vinyl acetate (EVA), ethylene methyl acrylate (EMA), ethylene acrylic acid (EAA), polyethylene terepthalate (PET) and lonomer.  
     
     
         5 . The paper stock according to  claim 1  wherein said polymeric film surface is printed.  
     
     
         6 . The paper stock according to  claim 1  wherein said paper surface is printed.  
     
     
         7 . The paper stock according to  claim 1 , wherein said paper substrate is selected from the group consisting of cellulosic and synthetic materials.  
     
     
         8 . The paper stock according to  claim 7 , wherein said paper substrate is bleached paper or paperboard.  
     
     
         9 . The paper stock according to  claim 1 , comprising an additional biaxially oriented polymeric film placed on either the uncoated paper substrate surface or on said film surface or both.  
     
     
         10 . A flexible packaging for wrapping paper comprised of a laminated paper stock made of at least one biaxially oriented polymeric film adhered to a paper substrate.  
     
     
         11 . The packaging according to  claim 10 , wherein said biaxially oriented polymeric film is selected from the group consisting of polypropylene, polyester, nylon, polystyrene and polyethylene.  
     
     
         12 . The packaging according to  claim 11 , wherein said polyethylene is selected from the group consisting of low density polyethylene (LDPE), linear low density polyethylene (LLDPE), metallocene low density polyethylene (m-LDPE) and high density polyethylene (HDPE).  
     
     
         13 . The packaging according to  claim 10 , wherein said adhesive material is selected from the group consisting of low density polyethylene (LDPE), linear low density polyethylene (LLDPE), metallocene low density polyethylene (m-LDPE), high density polyethylene (HDPE), polypropylene (PP), ethylene vinyl acetate (EVA), ethylene methyl acrylate (EMA), ethylene acrylic acid (EAA), polyethylene terepthalate (PET) and lonomer.  
     
     
         14 . The packaging according to  claim 10  wherein said polymeric film surface is printed.  
     
     
         15 . The packaging according to  claim 10  wherein said paper surface is printed.  
     
     
         16 .. The packaging according to  claim 10 , wherein said paper substrate is selected from the group consisting of cellulosic and synthetic materials.  
     
     
         17 . A method of making a laminated paper stock comprising the steps of: 
 providing at least one biaxially oriented polymeric film; and    adhering said film to a paper substrate.    
     
     
         18 . The method according to  claim 17 , wherein said film is selected from the group consisting of polypropylene, polyester, nylon, polystyrene and polyethylene.  
     
     
         19 . The method according to  claim 18 , wherein said polyethene is selected from the group consisting of low density polyethylene (LDPE), linear low density polyethylene (LLDPE), metallocene low density polyethylene (m-LDPE) and high density polyethylene (HDPE).  
     
     
         20 . The method according to  claim 17 , wherein said film is adhered to said paper substrate by an adhesive material selected from the group consisting of low density polyethylene (LDPE), linear low density polyethylene (LLDPE), metallocene low density polyethylene (m-LDPE) and high density polyethylene (HDPE), polypropylene (PP), ethylene vinyl acetate (EVA), ethylene methyl acrylate (EMA), ethylene acrylic acid (EAA), polyethylene terepthalate (PET) and lonomer.  
     
     
         21 . The method according to  claim 17  comprising the further step of treating said film surface to enhance printability.  
     
     
         22 . The method according to  claim 17  comprising the further step of treating said film surface to enhance processability.  
     
     
         23 . The method according to  claim 17 , wherein said paper substrate is selected from the group consisting of cellulosic and synthetic materials.  
     
     
         24 . A method of making a flexible package for wrapping paper comprising the steps of: 
 providing a laminated paper stock made of at least one biaxially oriented polymeric film adhered to a paper substrate; and    forming said package from said stock.