| PATENT ASSIGNEE'S COUNTRY | UK |
| UPDATE | 08.00 |
| PATENT ASSIGNEE | AEA Technology |
| PATENT CLAIMS |
A method of modifying the surface structure of a film of polymer material for use as a packaging material for perishable materials to reduce the transport of gaseous material therethrough, comprising - The operation of subjecting the film of polymer material to bombardment with ions selected from: H, N, He & Ar at energies 30-80 KeV & ion doses 10 (to 12th power) - 10 (to 18th power) ions/square.cm |
| PATENT PHOTOCOPY | Available on request |
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