Encouraging Lateral Diffusion of Oxygen

Request Number N663117
Author Sealed Air Corporation
Need details

Sealed Air seeks materials or processing techniques which will promote the lateral diffusion of oxygen along a film surface.



Technology to achieve selective diffusion or transport of gasses through film walls is known and mature. Sealed Air would like to identify materials or processes which promote movement of oxygen along one surface of a film.


When producing a hermetically sealed package for respiring products, the packaging film may directly contact the product that is sealed inside, thereby producing areas that are functionally blocked from a bulk atmosphere inside the package. Such blockage results in pockets of contact and non-contact with a film surface such that contact areas cannot equilibrate with the bulk atmosphere. Restricted equilibration affects perceived freshness quality, especially in product locations where films bridges between high and low product surfaces of a food product. If the surface of the packaging film can be treated or modified in some way to promote gasses, particularly oxygen, to travel along the film surface within regions of direct contact between the film and substrate, then all areas under film will experience the same bulk conditions.


                         Lateral Oxygen Diffusion graphic 2

Sealed Air is interested in thin film materials or in processes that can be applied to existing thin films that promote lateral diffusion of oxygen on one side of the film. While there are known methods for achieving this effect, those known approaches affect film transparency, causing treated films to have a cloudy or milky appearance.


Key Success Criteria

Compelling proposals will show data or images supporting this capability. To be considered, proposed approaches must be demonstrable.


Technology Criteria:

  • Maintain transparency of thin film
  • Allow movement of oxygen along one side of a thin film
  • Be compatible with heat sealing processes
  • Be suitable for food contact
  • No impact on taste, color, or surface character of the packaged goods


Possible Approaches

Possible approaches include, but are not limited to:

  • Deposition of porous layers
  • Micro patterning
  • Novel thin film materials
  • Surface modification


Approaches not of interest

Preferred Collaboration types
  • To Be Negotiated
Items to be submitted

We are looking for a concise abstract/executive summary. The proposal should briefly describe the technical approach and provide information on technology performance, background and description of the responding team and their related experience. To Respond, please use the red Respond button.


Please note that only non-confidential information can be accepted. By submitting a response you represent that the response does not contain and will not be deemed to contain any confidential information of any kind whatsoever.


Point of Contact
Jonathan Jakischa
Area of Interest
  • Materials Processing
  • Plastics
  • Polymers
  • Film Packaging
  • Plastic Packaging
Sealed Air Corporation
Due Date
December 31, 2016
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