Catalyst for the polymerization of olefins
CA 2382009 A1 · Owner: Dall'Occo, Tiziano · Inventors: Dall'Occo, Tiziano; Sacchetti, Mario; Baruzzi, Giovanni
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Catalyst system for the polymerization of olefins CH2=CHR wherein R is , hydrogen or a hydrocarbon radical having 1-12 carbon atoms comprising the , product of the reaction between (a) a solid catalyst component comprising Mg Ti, and halogen, (b) dimethylaluminium chloride (DMAC) and (c) an alkylaluminium compound, in which the molar ratio between (b) and (c) is lower than 10. This kind of catalyst system is particularly suitable for the preparation of copolymers of ethylene with .alpha.-olefins due to its high capacity for incorporating the comonomer while at the same time maintaining high yields.
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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
- Filed August 29, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 29, 2022.
- 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.