Multiple layer film and containers made therefrom
CA 1315659 C · Owner: American National Can Company · Inventors: Starczewski, John F.; Jesse, Jerry F.; Hsu, Joseph C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Multiple layer films and containers. The films have a first layer of either nylon or a combination of nylon with nylon wherein the melting point temperature of the combination is greater than the melting point temperature of the corresponding nylon. A second layer is comprised of linear low density polyethylene, and 0% to 40% low density polyethylene. A third adhesive layer is disposed between the first and second layers. The containers are susceptible of being sealed with included gas at low pressure and subse-, quently boiled in water without rupture of the seals. The film is preferably coextruded from tubular die thereby, setting forth a new method for forming a multiple layer film …
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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 April 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 2010.
- 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.