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:
Mar. 03, 2020
Filed:
Jul. 27, 2016
Applicant:
Sabic Global Technologies B.v., Bergen op Zoom, NL;
Inventors:
Orass M. Hamed, Riyadh, SA;
Nayef M. Al-Enazi, Riyadh, SA;
Vugar O. Aliyev, Riyadh, SA;
Abderrahman Meddad, Riyadh, SA;
Assignee:
SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/34 (2006.01); C08F 10/02 (2006.01); C08F 110/14 (2006.01); B01J 21/06 (2006.01); B01J 21/08 (2006.01); B01J 23/26 (2006.01); B01J 35/02 (2006.01); B01J 35/10 (2006.01); B01J 37/08 (2006.01); B01J 37/02 (2006.01); B01J 8/00 (2006.01); B60K 15/03 (2006.01); B01J 23/00 (2006.01);
U.S. Cl.
CPC ...
C08F 2/34 (2013.01); B01J 8/0015 (2013.01); B01J 21/063 (2013.01); B01J 21/08 (2013.01); B01J 23/002 (2013.01); B01J 23/26 (2013.01); B01J 35/023 (2013.01); B01J 35/1023 (2013.01); B01J 35/1047 (2013.01); B01J 37/0205 (2013.01); B01J 37/088 (2013.01); B60K 15/03 (2013.01); C08F 10/02 (2013.01); C08F 110/14 (2013.01); B01J 37/0203 (2013.01); B01J 2523/00 (2013.01); C08F 2500/07 (2013.01);
Abstract
The invention relates to a gas phase polymerisation process for the production of ethylene polymers in the presence of a catalyst composition based on a chromium compound, a titanium compound and a silica support material. The silica support material has a surface area (SA) between 685 m/g and 800 m/g, a pore volume (PV) between 1.65 and 1.85 cm/g and an average particle size in the range between 25 and 35 micrometres. The catalyst composition is injected by a dry catalyst feeder into the polymerization reactor.