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(12) United States Patent (10) Patent No.: US 9,334.203 B2 Small Et Al USOO9334203B2 (12) United States Patent (10) Patent No.: US 9,334.203 B2 Small et al. (45) Date of Patent: May 10, 2016 (54) OLIGOMERIZATION OF ALPHAOLEFINS (52) U.S. Cl. USING METALLOCENE-SSA CATALYST CPC. C07C2/30 (2013.01); B01J 21/04 (2013.01); SYSTEMIS AND USE OF THE RESULTANT B01J 21/12 (2013.01); B01.J. 3 1/143 (2013.01); POLYALPHAOLEFINS TO PREPAIRE (Continued) LUBRICANT BLENDS (58) Field of Classification Search CPC ............ C10M 107/10; C10N 2220/02: C10N (71) Applicant: Chevron Phillips Chemical Company 2220/021; C10N 2220/022; C10N 2220/023; LP, The Woodlands, TX (US) C1ON 223Of O2 See application file for complete search history. (72) Inventors: Brooke L. Small, Kingwood, TX (US); Kenneth D. Hope, Kingwood, TX (US); (56) References Cited Qing Yang, Bartlesville, OK (US); Albert P. Masino, Tulsa, OK (US); Max U.S. PATENT DOCUMENTS P. McDaniel, Bartlesville, OK (US); Richard M. 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US 2013/0317265 A1 Nov. 28, 2013 (57) ABSTRACT This disclosure provides for alpha olefin oligomers and poly alphaolefins (or PAOs) and methods of making the alpha Related U.S. Application Data olefin oligomers and PAOS. This disclosure encompasses (62) Division of application No. 12/816,077, filed on Jun. metallocene-based alpha olefin oligomerization catalyst sys 15, 2010, now Pat. No. 8,536,391. tems, including those that include at least one metallocene and an activator comprising a solid oxide chemically-treated (60) Provisional application No. 61/187.334, filed on Jun. with an electron withdrawing anion. The alpha olefin oligo 16, 2009. mers and PAOS prepared with these catalyst systems can have (51) Int. Cl. a high Viscosity index combined with a low pour point, mak CIOM IO7/00 (2006.01) ing them particularly useful in lubricant compositions and as CIOM 7D/00 (2006.01) Viscosity modifiers. (Continued) 19 Claims, 11 Drawing Sheets Temperature, C US 9,334.203 B2 Page 2 (51) Int. 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