Catalyst component for the polymerization of olefins and process for preparing olefin polymers using same
CA 2105889 A1 · Owner: Kataoka, Naoki · Inventors: Kataoka, Naoki; Mori, Satoshi; Matsuura, Kazuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is intended to provide a catalyst component for use in the polymerization or copolymerization of olefin(s) and capable of affording olefin polymers or copolymers having a high molecular weight, a relatively wide molecular weight distribution, and a narrow composition distribution in the case of copolymers. The catalyst component is obtained by contacting the following components (1) to (4) with one another: (1) a compound of the general formula Me1R1nX14-n where R1 is a hydrocarbon radical having 1 to 24 carbon atoms, X1 is a halogen atom, Me is Zr, Ti Or Hf and n is, 0 ? n ? 4;, (2) a compound of the general formula Me2R2mX2z-m where R2 is a hydrocarbon radical having 1 to 24 carbon …
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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 September 10, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2015.
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Timeline
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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.