Catalyst component for polymerizing ethylene or copolymerizing ethylene with an alpha-olefin
CA 1318909 C · Owner: Moalli, Angelo · Inventors: Masi, Francesco; Moalli, Angelo; Invernizzi, Renzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catalyst component is in the form of a granular spherical solid with at least 80% of the granules between 30 and 40 microns in size a surface area of 15 to 30 m2/g and a porosity of 40 to 80 volumes % and definable (in atomic proportions) by the formula: Ti1 Mg0,3-3,1 Al0,4-0,65 Cl3,2-8,2, (Et + OEt + OR')1,9-3 where Et denotes the ethyl group; OEt denotes the ethoxy group and OR' is an alkoxy group containing from 1 to 8 carbon atoms in the alkyl portion, and in which the ration of trivalent titanium to the sum of trivalent and tetravalent titanium is in the range from 0.8/1 to 1/1. The solid catalyst component is obtained by: a) Spray-drying a solution of magnesium chloride in ethanol …
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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 June 8, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 8, 2010.
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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.