Process and product
CA 1081678 A · Owner: Toa Nenryo Kogyo K.K. · Inventors: Ueno, Hiroshi; Makishima, Tokuo; Wada, Shozo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is disclosed for the production of a catalyst component for use in the polymerization of .alpha.-olefins which comprises reducing titanium, tetrachloride with an organo-aluminum compound or mixture of such compounds having the general formula AlRnX3-n wherein R represents a hydrocarbon group having 1 to 18 carbon atoms, X represents a halogen atom and n represents a number expressed as 0 < n ?3 to thus obtain a reduced solid, then removing aluminum compounds contained in said reduced solid activating the solid with a complex or mixture of titanium tetrachloride and a dialkyl ether having the formula R'OR" in which R' and R" are the, same or different and each are selected from the …
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 July 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 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.