Polymerization catalyst, production and use
CA 1258060 A · Owner: Exxon Research And Engineering Company · Inventors: Best, Steven A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and a titanium-containing catalyst component said titanium-containing, catalyst component being obtained by reacting together a porous particulate material. an organic magnesium compound an oxygen, containing compound, an acyl halide and titanium tetrachloride a, Group IIIa hydrocarbyl metal dihalide and C12 Br2, an, interhalogen or mixtures thereof.
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 August 1, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 1, 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.