US 11,655,316 B2
Polymer flow index modifier
Charles D. Lester, S. Charleston, WV (US); Mark G. Goode, S. Charleston, WV (US); Timothy R. Lynn, Middlesex, NJ (US); Kevin J. Cann, Tierra Verde, FL (US); John H. Moorhouse, Middlesex, NJ (US); William Albert Matthews, Hilton Head Island, SC (US); Kefu Sun, Freeport, TX (US); and Francois Alexandre, Saint-Leonard (CA)
Assigned to Univation Technologies, LLC, Houston, TX (US)
Filed by Univation Technologies, LLC, Houston, TX (US)
Filed on Dec. 16, 2020, as Appl. No. 17/123,310.
Application 17/123,310 is a division of application No. 16/094,555, granted, now 10,870,719, previously published as PCT/US2017/027872, filed on Apr. 17, 2017.
Claims priority of provisional application 62/325,175, filed on Apr. 20, 2016.
Prior Publication US 2021/0102016 A1, Apr. 8, 2021
Int. Cl. C08F 2/38 (2006.01); C08F 10/02 (2006.01); C08F 210/02 (2006.01); C08F 2/34 (2006.01); C08F 4/69 (2006.01); C08F 210/16 (2006.01); C08K 3/00 (2018.01); C08K 5/01 (2006.01)
CPC C08F 210/02 (2013.01) [C08F 2/38 (2013.01); C08F 4/69 (2013.01); C08F 210/16 (2013.01); C08K 3/00 (2013.01); C08K 5/01 (2013.01); C08F 2/34 (2013.01); C08F 2500/12 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for modifying a polymer flow index, comprising:
providing monomers to a polymerization reactor;
providing a chromium catalyst to the polymerization reactor; and
providing an active amount of a flow index modifier to the polymerization reactor, wherein the flow index modifier is carbon monoxide and is from 0.010 parts per million to 2.000 parts per million based upon the monomers,
wherein providing the active amount of the flow index modifier to the polymerization reactor forms a polymer having a polymer flow index that is reduced as compared to a second polymer having a different polymer flow index, where the second polymer is formed by a same polymerization process, but without utilizing an active amount of the flow index modifier.