[12] Patent
[11] Patent No.:GC0007637  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/126392
Date of the Decision to Grant the Patent:23/Apr/2018

[21] Application No.:GC 2012-23244

[22] Filing Date:30/12/2012

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
31/12/2011
61/582,321

[72] Inventors:1- Chi-I Kuo،2- Ghanshyam Ganu H. Patel،3- R. Eric Pequeno،4- Bruce J. Savatsky،5- F. David Hussein

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

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

  

 

  

[51]IPC:
Int. Cl.: C08F10/02, C08F2/00, C08F2/34 (2006.01)

[56] Cited Documents:

-US 2007049711 A1 (KUO CHI-I [US] ET AL) 01 March 2007
-WO 2005044863 A1 (UNIVATION TECH LLC [US]; EHRMAN FRED D [US]; SHIRODKAR PRADEEP P [US];) 19 May 2005
-US 2005282980 A1 (SZUL JOHN F [US] ET AL) 22 December 2005
-US 2005148742 A1 (HAGERTY ROBERT O [US] ET AL) 07 July 2005
-GB 2183244 A (TOHO TITANIUM CO LTD TOHO TITANIUM CO LTD [JP]) 03 June 1987
 
Examiner: Nouf AlNassban

[54] CONTINUITY ADDITIVE FOR POLYOLEFIN POLYMERIZATION PROCESSES
[57] Abstract: A polymerization process is disclosed, including: polymerizing an olefin to form an olefin-based polymer in a polymerization reactor; and introducing a hindered amine light stabilizer to the polymerization reactor. The process may further comprise monitoring static in the polymerization reactor; maintaining the static at a desired level by use of a hindered amine light stabilizer, the hindered amine light stabilizer present in the reactor in the range from about 0.1 to about 500 ppmw, based on the weight of polymer produced by the process.
No. of claims: 18     No. of figures: 1


 

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