Plasticized evoh and process and products utilizing same
CA 1193381 A · Owner: American Can Company · Inventors: Odorzynski, Thomas W.; Knott, Jack E. Ii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An EVOH copolymer blend is extrudable to produce films of uniform caliper and excellent oxygen barrier properties. Aromatic sulfonamides are desirably utilized as plasticizers and, superior composite films including a layer of the plasticized EVOH are produced.
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 September 10, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 10, 2002.
- 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.