Laminated material and method for manufacturing the same
CA 1264651 C · Owner: Andersson, Thorbjorn · Inventors: Andersson, Thorbjorn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a laminated material which comprises a carrier layer of paper or cardboard and an outside layer of extruded polythene applied to one side of the carrier layer . To the other side of the carrier layer is applied a first binder layer of polythene and a layer of aluminium foil placed against the binder layer . A second binder layer of EAA is provided for the bonding together of the aluminium foil with an inner polythene layer which has been produced by blowing and which has a substantially higher modulus of elasticity and strength than the slot-extruded polythene layer . The invention also relates to a method ~or the manufacture of the laminate by making use of the …
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 January 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 2007.
- 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.