US 11,814,460 B2
Pyridyl hydroxyl amine catalyst compounds and systems for Olefin Polymerization
Alex E. Carpenter, Seabrook, TX (US); Danielle G. Singleton, Houston, TX (US); and Tzu-Pin Lin, Seabrook, TX (US)
Assigned to ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Filed by ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Filed on Oct. 19, 2021, as Appl. No. 17/504,915.
Claims priority of provisional application 63/104,279, filed on Oct. 22, 2020.
Prior Publication US 2022/0127387 A1, Apr. 28, 2022
Int. Cl. C08F 4/64 (2006.01); C07F 17/00 (2006.01); C08F 210/16 (2006.01)
CPC C08F 4/64189 (2013.01) [C08F 4/64048 (2013.01); C08F 210/16 (2013.01); C07F 17/00 (2013.01)] 20 Claims
 
1. A catalyst compound represented by Formula I(a), I(b) or I(c):

OG Complex Work Unit Chemistry
wherein:
M is Ti, Zr, or Hf;
R1 and R6 are independently selected from the group consisting of hydrocarbyl, substituted hydrocarbyl, silyl, and substituted silyl groups;
R2, R3, R4, R5, R7, R8, R9, and R10 are independently selected from the group consisting of hydrogen, hydrocarbyl, substituted hydrocarbyl, alkoxy, silyl, amino, aryloxy, halogen and phosphino; wherein any two adjacent R groups may be joined to form a saturated or unsaturated hydrocarbyl, substituted hydrocarbyl, or heterocyclic ring, wherein the ring has 5, 6, 7, or 8 ring atoms and wherein substitutions on the ring can join to form additional rings; and
each X is independently an anionic leaving group; wherein any two adjacent X groups may be joined together to form a dianionic group.