Bonded sheets for packing
CA 1111752 A · Owner: Moplefan S.P.A. · Inventors: Bordini, Fosco; Mauri, Luigi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bonded thermoplastic sheet for packaging purposes (e.g. food packaging) comprises a lamination of a first film of oriented isotactic polypropylene, and a second film which may be of polyethylene, isotactic polypropylene propylene-rich, ethylene-propylene copolymer (block or random) mixtures of, polyethylene with polypropylene or propylene-ethylene copolymer or mixtures of polypropylene with propylene-ethylene copolymer. The laminating surface of at least one of the films is a metallized coating having a resistivity of from 1 to 5 Ohm.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.