| PATENT ASSIGNEE'S COUNTRY | Germany |
| UPDATE | 06.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Process for treat of sealable PP film surface by unpolarized flame to increase the surface tension of the film wherein - The PP film having thickness 4 - 120 micro-m is passed over a cooling roll - A burner is mounted above the cooling roll - The unpolarized flame is produced by burner - The film is flame-treated with unpolarized flame - The film is cooled by cooling roll to thereby produce flame treated surface having T upon leaving cooling roll of < 25C such that the sealability of film is not impaired, no condensa tion occurs on film surface & no static charge is acquired |
| PATENT PHOTOCOPY | Available on request |
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