[12] Patent
[11] Patent No.:GC0007622  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/126226
Date of the Decision to Grant the Patent:19/Apr/2018

[21] Application No.:GCC/P/2008/12588

[22] Filing Date:30/12/2008

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
27/2/2008
61/067,254

[72] Inventors:1- John M. Moorehouse،2- Kevin J. Cann،3- Mark G. Goode،4- Ronald S. Eisinger

[73] Owner: Univation Technologies, LLC, 5555 San Felipe, Suite 1950, Houston, Texas 77056, USA

[74] Agent: Saud M. A. Shawwaf Law Office

  

 

  

[51]IPC:
C08F10/00, C08F4/69, C08F210/16, C08F4/02

[56] Cited Documents:

-WO 2004/060923 A (UNIVATION TECH LLC [US]) 22 July 2004
-WO 94/13708 A (NESTE OY [FI]; KNUUTTILA HILKKA [FI]; KALLIO KALLE [FI]; HAKALA MARJA) 23 June 1994
 
Examiner: Eng. Abdulaziz S. AlMotek

[54] MODIFIED CHROMIUM-BASED CATALYSTS AND POLYMERIZATION PROCESSES FOR USING THE SAME
[57] Abstract: Embodiments disclosed herein generally relate to olefin polymerization catalysts, and more specifically to chromium-based catalysts and methods of use of chromium-based catalysts for the production of polyolefins, and even more specifically to methods for controlling or tailoring the flow index response of chromium-based catalysts through the controlled addition of a reducing agent to the catalysts under controlled mixing conditions.
No. of claims: 24     No. of figures: 4


 

Note: Any interested individual may, within 3 months of publication of the grant, file objection thereof with the Grievance Committee after payment of grievance fees.