Polyolefin compositions
CA 1284694 C · Owner: El Paso Products Company · Inventors: Lucas, Bennie M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Blends of propylene polymer, ethylene-vinyl acetate copolymer and optionally a synthetic rubber with small amounts, of a polyterpene resin as a compatabilizer possess excellent, properties for the manufacture of heat-sealable and sterilizable films as well as for the manufacture of molded speciality sealed containers and bottles.
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 June 4, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 2008.
- 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.