Process for manufacturing a metallized polyolefin film and resulting film
CA 1337856 C · Owner: Mount, Elridge Milford, Iii · Inventors: Keung, Jay Kin; Balloni, Riccardo; Mount, Elridge Milford, Iii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for manufacturing a metallized flexible film of a polymeric, material to provide a structure possessing high metal-to-film adhesion and little if any, tendency toward metal fracture is disclosed. At least one polyolefin layer comprising a substantially isotactic polymer having a degree of atacticity of nomore than 6% is subjected to flame treatment followed by vacuum metallization of this surface (preferably with aluminium). The isotactic component is preferably polypropylene homopolymer. Other components include up to about 34% of an adhesive-promoting component which can be a C2 to C4 polymer including a homo-, co-, or terpolymer and a second isotactic polymer having a degree of …
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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 January 2, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 2013.
- 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
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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.