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Polymer Food Packaging

a food packaging and polymer technology, applied in the direction of non-metal conductors, containers preventing decay, conductors, etc., can solve the problems of ineffective prevention of food product ripening, no existing food packaging material inhibits the ethylene formulation, and quick degradation, so as to prolong the shelf life of fresh food products, enhance the taste of fruits/vegetables, and reduce the rate at which fresh food products ripen

Inactive Publication Date: 2014-02-06
AMPACET CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a food packaging film or container that can extend the shelf-life of fruits and vegetables by controlling the levels of ethylene, moisture, and oxygen that can damage them. The film includes a transition metal salt, fine porous material like silica, and a surfactant. The film helps to keep the fresh food product fresher for longer periods of time by delaying the maturation process.

Problems solved by technology

However, the existing food packaging materials do not effectively prevent the natural metabolism of the food product and thus do not effectively prevent ripening of the food product.
This presents a problem to distributors who need to transport fresh food products over long distances because this must occur within a shorter timeframe.
Moreover, no existing food packaging material inhibits the ethylene formulation which is a direct cause of ripening.
The drawback associated with these films is the quick degradation thereof as well as the unavailability of the transition metal salt for bonding / complexing with elements other than those in the polymer film.

Method used

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  • Polymer Food Packaging
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Examples

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example 1

[0032]

Element% by weightpolyolefins (polyethylene or polypropylene) 99.5-91a transition metal salt0.05-3a fine porous inorganic material0.05-3a surfactant0.05-3

[0033]In addition to, or in the alternative, the above polyolefin element may also include polylolefinic copolymers such as EVA, EMA, etc. or other semi-transparent polymers such as EVOH, PLA, PHA, etc. The transition metal salt may include any transition metal, including but not limited to Manganese, Iron, Cobalt, Nickel, Silver or Copper, combined with a fatty acid including but not limited to stearic, oleic, palmitic, myristic, behenic or other fatty acid. The composition may use all derivatives and sources of transition metals because the ethylene inhibitor is the transition metal ion. The fine porous inorganic material may include any of silica, zeolite, cristobalite, Calcium carbonate, Kaolin, Talc and Limestone. The surfactant may be composed of glycerol, glycol, glycerol esters or blends of these or with other polyhyd...

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Abstract

A polyolefin composition comprising a predetermined amount of an ethylene inhibitor for binding 1-aminocyclopropane-1-carboxylic-acid (ACC) to reduce an amount of ACC available for an ethylene biosynthetic pathway.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority from U.S. Provisional Patent Application Ser. No. 61 / 055,502 filed on May 23, 2008 by C. Chulamanee et al.FIELD OF THE INVENTION[0002]The present invention relates generally to a polymer film for use as food packaging and, more specifically, to a polymer packaging that extends the shelf life of the food packaged therein.BACKGROUND OF THE INVENTION[0003]The use of polymer-based packaging for various food products including fruits and vegetables is known. Depending on the type of food article to be packaged, different polymer films may be utilized in order to maximize the life and freshness of the food product. These polymer films are generally intended to wrap or cover food product and reduce the amount of air and / or water vapor that contacts the food product during transport or while on the shelf. Examples of polymer based food packaging include polyethylene, polypropylene, rubber hydrochloride, cellulose ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D81/28
CPCB65D81/28A23B7/14
Inventor CHULAMANEE, CHOPRAYOONPATHANON, KANOKPHANLAHOR, ATCHARA
Owner AMPACET CORP
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