Plastic wrap with cling layer

Abstract

A three-layer microwavable, plastic wrap having a core layer between a cling layer and a release layer. The cling layer comprises a base resin and an effective amount of a hydrocarbon tackifier to provide sufficient cling to different surfaces such as aluininum, stainless steel, ceramic, plastic and laninated cardboard. The release layer includes an effective amount of an anti-blocking agent to facilitate dispensing of the wrap from a dispensing roll.

What is claimed is:  
     
         1 . A method of making a plastic wrap, comprising: 
 mixing a first polyolefin and an antiblocking agent to form a first polyolefin composition;    mixing a base resin and a tackifier;    feeding the first polyolefin composition into at least one first extruder to form a first extruded layer;    feeding a second polyolefin into at least one second extruder to form a second extruded layer;    feeding the base resin and tackifier mixture into at least one third extruder to form a third extruded layer;    joining the first extruded layer, the second extruded layer, and the third extruded layer to form a film;    passing the film into contact with a first chill roll;    passing the chilled film into contact with an embosser; and passing the embossed film into contact with a second chill roll to make the plastic wrap.    
     
     
         2 . The method of  claim 1 , wherein the first polyolefin comprises one of a polypropylene or a polypropylene/ethylene copolymer or mixtures thereof, and the antiblocking agent comprises at least one of silica, calcium carbonate, or talc, and mixtures thereof.  
     
     
         3 . The method of  claim 1 , wherein the second polyolefin comprises HDPE. LDPE, LLDPE mixtures thereof.  
     
     
         4 . The method of  claim 1 , wherein the base resin comprises one of ethylene methyl acrylate or ethylene vinyl acetate, and the tackifier comprises SIS and rosin ester tackifier.  
     
     
         5 . The method of  claim 3 , wherein the SIS is compounded with the base resin to form a first binary composition, and the rosin ester tackifier is compounded with the base resin to form a second binary composition prior to feeding into the at least one second extruder.  
     
     
         6 . The method of  claim 1 , wherein the first extruded layer, the second extruded layer, and the third extruded layer are channeled into a single-manifold slot cast die and a multilayer adapter for the slot cast die which joins the three layers.  
     
     
         7 . The method for making a plastic wrap, comprising: 
 mixing a first polyolefin and an antiblocking agent to form a first polyolefin composition;    compounding a base resin and a tackifier to form a hot melt;    feeding the first polyolefin composition into at least one first extruder to form a first extruded layer;    feeding a second polyolefin into at least one second extruder to form a second extruded layer;    joining the first extruded layer and the second extruded layer and the hot melt to form a film;    passing the film into contact with a first chill roll;    passing the chilled film into contact with an embosser; and    passing the embossed film into contact with a second chill roll to make the plastic wrap.    
     
     
         8 . A method of making a plastic wrap comprising: 
 mixing a first polyolefin and an antiblocking agent to form a first polyolefin composition;    nixing a base resin and a tackifier;    feeding the first polyolefin composition into at least one first extruder to form a first extruded layer;    feeding a second polyolefin into at least one second extruder to form a second extruded layer;    joining the first extruded layer, the second extruded layer, and the third extruded layer to form a film;    cooling the film with forced air cooling;    passing the cooled film into contact with an embosser; and    passing the embossed film into contact with a chill roll to make the plastic wrap.