Polyolefin polymerization process and catalyst
CA 1204725 A · Owner: Phillips Petroleum Company · Inventors: Hawley, Gil R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catalyst and process for polymerizing olefins wherein the catalyst comprises a titanium-containing component prepared by reacting a magnesium dihalide, 4-phenyl phenol, ethyl benzoate and titanium, tetrabutoxide, and an organoaluminum halide and then reacting that product with a mixture of TiCl4, HSiCl3 and SiCl4.
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 20, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 20, 2003.
- 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.