Polymerization catalysts comprising titanium and magnesium
CA 2510679 C · Owner: Basell Poliolefine Italia S.P.A. · Inventors: Brita, Diego; Morini, Giampiero; Vitale, Gianni
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catalyst component for olefin (co)polymerization and in particular for the , preparation of LLDPE comprising Mg, Ti, halogen and an electron donor compound (ED) belonging to ethers, esters amines, ketones, or nitriles, characterized in that the molar ratio Mg/Ti is higher than 5 and the molar , ratio ED/Ti is higher than 3.5. The said catalyst components display a homogeneous distribution of the comonomer in and among the copolymer chains.
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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 November 25, 2003 and granted April 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 25, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.