Polymerization catalysts and process for producing bimodal polymers in a single reactor
CA 2619967 C · Owner: Thorn, Matthew G. · Inventors: Jensen, Michael D.; Kertok, Mark E.; Mcdaniel, Max P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Catalyst compositions comprising a first metallocene compound a second , metallocene compound, an activator-support and an organoaluminum compound are , provided. Methods for preparing and using such catalysts to produce polyolefins are also provided. The compositions and methods disclosed herein provide ethylene polymers having a HLMI of from about 0.5 to about 25 a , polymer density of from about 0.920 to about 0.965 and a polydispersity of , from about 3.0 to about 30.
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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 18, 2006 and granted April 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 18, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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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.