| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 06.00 |
| PATENT ASSIGNEE | Westvaco |
| PATENT CLAIMS |
Paperboard packaging material capable of producing fiber tearing seals when 2 surfaces are adhered together - Paperboard substrate having 2 sides - Finished coating on one side of substrate to provide an outer smooth, printable surface - Base coating comprising 3-8 lbs/ream wherein ream size is 3000 square.ft, of 50/50 blend of CaCO3 & No. 2 clay on other side of substrate to provide surface for accepting a sealable moisture barrier top coat - Sealable moisture barrier top coat, comprising 3-9 lbs/ ream of ethylene vinyl chloride copolymer, over said base coat to provide an inner prodt contact surface |
| PATENT PHOTOCOPY | Available on request |
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