Process for preparing polyolefins
CA 1085811 A · Owner: Nippon Oil Co. Ltd. · Inventors: Matsuura, Kazuo; Miyoshi, Mituji; Kuroda, Nobuyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is provided for preparing polyolefins. The process comprises polymerizing or copolymerizing an olefins or olefins using, an a novel catalyst, a transition metal compound component and an organometallic compound of groups I- IV of the Periodic Table. The transition metal compound component is a substance which is obtained by contacting the following compounds (1) and (2), namely: (1) a compound which is obtained by reacting an organomagnesium compound represented by the general formula RMgX, wherein R is an alkyl or aryl group having 1 to 20 carbon atoms and X is a halogen with an alum-, inum compound represented by the general formula A1R'nX3-n wherein R' is an alkyl or aryl group …
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 16, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 16, 1997.
- 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.