Olefin polymerization
CA 1068446 A · Owner: Montedison S.P.A. · Inventors: Luciani, Luciano; Barbe, Pier C.; Scata, Umberto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the polymerization of alphaolefins having at least three carbon atoms, using a catalyst containing titanium, magnesium, aluminium and halogen. The catalyst employed comprises, according to the invention the reaction, product of (A) an addition and/or substitution product of an electron donor compound (Lewis base) with an aluminium alkyl with (B) a compound and/or composition in which the atomic ration of halogen/magnesium is at least 1:1 which compound and/, or composition is either (I) obtained by contacting (a1) a halogen-containing titanium compound with the product of reaction between (a2) a magnesium alcoholate of the formula XMgOR, where R is an alkyl, cycloalkyl or aryl …
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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 December 18, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 18, 1996.
- 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.