US2005142310A1PendingUtilityA1

Plastic packaging for produce products

42
Priority: Dec 30, 2003Filed: Dec 30, 2003Published: Jun 30, 2005
Est. expiryDec 30, 2023(expired)· nominal 20-yr term from priority
Inventors:Earl Hatley
B32B 38/04B32B 27/34Y10T428/1352Y10T428/1334B32B 37/153B32B 2307/31B32B 27/08B32B 2439/70B32B 27/18B32B 2307/724
42
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A packaged produce product formed from at least one polyamide film. The polyamide film is a coextruded film of at least one layer of nylon 6 and at least one layer of nylon 6,66. The film is heat sealed to form a package via the nylon 6,66 layer and produce is contained within the package. A single polyamide film may be used and the film is heat sealed to itself. Alternatively, two overlapped polyamide films are used and the nylon 6,66 layers of both films are heat sealed together. The package exhibits increased heat seal strength and improved transmission of gases to provide a desirable modified atmosphere in the package.

Claims

exact text as granted — not AI-modified
1 . A packaged produce product comprising a package formed from at least one coextruded polyamide film comprising at least one first layer formed from a polyamide selected from the group consisting of nylon 6, nylon 66 and blends thereof, and at least one second layer of nylon 6,66 in contact with said first layer, and produce contained within said package, said package being formed from at least one polyamide film being heat sealed via said nylon 6,66 layer.  
     
     
         2 . The product of  claim 1 , wherein said first layer comprises nylon 6.  
     
     
         3 . The product of  claim 2 , wherein said nylon 6 moiety is present in said nylon 6,66 layer in an amount from about 10 to about 95 weight percent.  
     
     
         4 . The product of  claim 2 , wherein said nylon 6 moiety is present in said nylon 6,66 layer in an amount from about 55 to about 95 weight percent.  
     
     
         5 . The product of  claim 2 , wherein said nylon 6 moiety is present in said nylon 6,66 layer in an amount from about 70 to about 90 weight percent.  
     
     
         6 . The product of  claim 2 , wherein the thickness of said polyamide film ranges from about 1 to about 50 μm.  
     
     
         7 . The product of  claim 2 , wherein the thickness of said polyamide film ranges from about 5 to about 40 μm.  
     
     
         8 . The product of  claim 2 , wherein the thickness of said polyamide film ranges from about 10 to about 30 μm.  
     
     
         9 . The product of  claim 2 , wherein said polyamide film is perforated.  
     
     
         10 . The product of  claim 2 , wherein the heat seal strength of said polyamide film is at least about 700 grams.  
     
     
         11 . The product of  claim 1 , wherein said package is formed from a single polyamide film which is heat sealed to itself via said nylon 6,66 layer.  
     
     
         12 . The product of  claim 1 , wherein said package is formed from two polyamide films which are overlapped, with said nylon 6,66 layer of both polyamide films being heat sealed together.  
     
     
         13 . A packaged produce product comprising a package formed from at least one coextruded polyamide film comprising at least one layer of nylon 6, and at least one layer of nylon 6,66 in contact with said nylon 6 layer, and produce contained within said package, said package being formed from at least one polyamide film being heat sealed via said nylon 6,66 layer.  
     
     
         14 . The product of  claim 13 , wherein said nylon 6 moiety is present in said nylon 6,66 layer in an amount from about 55 to about 95 weight percent.  
     
     
         15 . The product of  claim 13 , wherein said nylon 6 moiety is present in said nylon 6,66 layer in an amount from about 70 to about 90 weight percent.  
     
     
         16 . The product of  claim 13 , wherein the thickness of said polyamide film ranges from about 1 to about 50 μm.  
     
     
         17 . The product of  claim 13 , wherein the thickness of said polyamide film ranges from about 10 to about 30 μm.  
     
     
         18 . The product of  claim 13 , wherein said polyamide film is perforated.  
     
     
         19 . The product of  claim 13 , wherein the heat seal strength of said polyamide film is at least about 700 grams.  
     
     
         20 . The product of  claim 13 , wherein said package is formed from a single polyamide film which is heat sealed to itself via said nylon 6,66 layer.  
     
     
         22 . The product of  claim 13 , wherein said package is formed from two polyamide films which are overlapped, with said nylon 6,66 layer of both polyamide films being heat sealed together.  
     
     
         23 . The product of  claim 13 , wherein said package comprises a bag.  
     
     
         24 . The product of  claim 13 , wherein said package comprises a pouch.

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