Propylene polymer compositions
CA 1254326 A · Owner: Montell Technology Company B.V. · Inventors: Mccullough, James D. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Visbroken blends of sequentially polymerized ethylenepropylene copolymers and linear low density polyethylene possess extremely good impact resistance along with high melt flows without excessive loss of stiffness. The copolymers are useful where these properties are of value, particularly in preparing films for packaging and in preparing products by moulding or extrusion.
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 16, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 16, 2006.
- 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.