Coextruded multilayer sheet and sleeve label made therefrom
CA 1237262 A · Owner: Owens-Illinois, Inc. · Inventors: Karabedian, James A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coextruded multilayer sheet adapted for use as a tough solvent seal label sleeve on containers the sheet comprising a, foam layer for use on the inside of the sleeve next to the container and an outer decoratable solid skin layer the skin, layer and foam layer being coextruded from an extrudable blend comprising about 30 to 60 wt. % high density polyethylene about, 30 to 50 wt. % of a block copolymer of styrene and butadiene as a compatibility agent, and about 10 to 30 wt. % polystyrene the, resultant sleeve label being tough and easily solvent sealable, on a high speed production basis. The sleeve label can also be sealed by ultrasonic, hot air and heat sealing.
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 May 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
- 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.