US2017259542A1PendingUtilityA1

Liner film

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Assignee: FLEXOPACK SAPriority: Mar 10, 2016Filed: Mar 10, 2017Published: Sep 14, 2017
Est. expiryMar 10, 2036(~9.6 yrs left)· nominal 20-yr term from priority
Inventors:Dimitris Gkinosatis
B32B 2307/7244B32B 2307/518B32B 2439/70B32B 2323/00B32B 27/32B32B 27/36B32B 27/306B32B 27/08B32B 2371/00B32B 2307/71B32B 27/34B32B 1/08B32B 2270/00B32B 2307/70B32B 27/285B32B 2439/46B65D 65/40B32B 2250/24B32B 2307/50B65D 88/16B32B 7/02
60
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Claims

Abstract

The invention relates to gusseted plastic film with a thickness of 50 to 200 microns, comprising a polyolefin homopolymer or copolymer, a polyether copolymer and a layer comprising oxygen barrier polymer.

Claims

exact text as granted — not AI-modified
1 . A multilayer plastic film comprising
 a polyolefin homopolymer or copolymer   a polyether copolymer, and   an oxygen barrier material.   
     
     
         2 . The plastic film of  claim 1 , wherein the thickness of the film is between 50 and 200 microns. 
     
     
         3 . The plastic film of  claim 2 , wherein the thickness of the film is between 60 and 130 microns. 
     
     
         4 . The plastic film of  claim 1 , wherein the oxygen barrier material is ethylene vinyl alcohol (EVOH). 
     
     
         5 . The plastic film of  claim 1 , wherein the oxygen barrier material is a polyamide. 
     
     
         6 . The plastic film of  claim 1 , wherein the polyolefin homopolymer or copolymer is polyethylene or polypropylene. 
     
     
         7 . The plastic film of  claim 1 , wherein the polyolefin homopolymer or copolymer is ethylene alpha olefin copolymer. 
     
     
         8 . The plastic film of  claim 7 , wherein the polyether copolymer is a block copolymer. 
     
     
         9 . The plastic film of  claim 1 , wherein the polyether copolymer is polyolefin, polyamide or polyester copolymer. 
     
     
         10 . The plastic film of  claim 1 , wherein the polyolefin homopolymer or copolymer and the polyether copolymer are present in the film as a blend. 
     
     
         11 . The plastic film of  claim 1 , wherein the polyether copolymer is contained in at least one of an outer layer or an inner layer. 
     
     
         12 . The plastic film of  claim 11 , wherein 5-25 wt % of polyether copolymers are contained in at least one of the outer layer or the inner layer. 
     
     
         13 . A gusseted tubular film comprising the plastic film of  claim 1 . 
     
     
         14 . The plastic film of  claim 10 , wherein the blend is contained in at least one of the outer layer or the inner layers.

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