The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2020
Filed:
Nov. 28, 2016
Sabic Global Technologies B.v., Bergen Op Zoom, NL;
Bandar Abdullah Almohammadi, Riyadh, SA;
Akhlaq Moman, Riyadh, SA;
Ahmad Abdullah Alshaiban, Riyadh, SA;
Inaamul Haq Siddiqui, Riyadh, SA;
Sudhakar R. Padmanabhan, Riyadh, SA;
SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Abstract
A procatalyst for polymerization of olefins, based on a magnesium compound of the formula MgR'R″ wherein R′ is an alkoxide or aryloxide group and R″ is an alkoxide or aryloxide group or halogen that has been reacted with a tetravalent titanium halide, an activator being a monoester and an internal donor of formula B: as described herein. Also described is a polymerization catalyst system comprising the procatalyst, a co-catalyst and optionally an external electron donor; a process of making a polyolefin by contacting an olefin with the catalyst system; a polyolefinobtained by or obtainable by the process; and a polyolefin, preferably a polypropylene, having a molecular weight distribution of between 3 and 15, a molecular weight (M) of between 200,000 to 1,000,000 g/mol, a melting temperature of more than 145° C., a value for the xylene solubles of less than 4 wt. % and a shaped article therefrom.