Polyalphaolefins and processes for forming polyalphaolefins

Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By addition of entire unsaturated molecules – e.g.,...

Reexamination Certificate

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C585S502000, C585S520000, C585S521000, C585S522000, C800S281000, C800S281000, C800S281000

Reexamination Certificate

active

07880047

ABSTRACT:
The invention is directed to polyalphaolefins (PAOs) and processes for forming PAOs. In one embodiment, the invention is to a process for forming a PAO comprising polymerizing C8-C12α-olefin monomers in the presence of hydrogen, a C8-C12saturated hydrocarbon, e.g., a C8-C12saturated straight-chain hydrocarbon, and a catalyst system in a reaction vessel, wherein the C8-C12saturated straight-chain hydrocarbon has about the same number of carbon atoms as the C8-C12α-olefin monomers. The C8-C12saturated straight-chain hydrocarbon optionally is derived from a crude PAO product formed by the process of the invention. The invention is also directed to reaction systems for performing the processes of the invention, to processes for controlling PAO viscosity based on residence time, and to the removal of spent catalyst using a solid adsorbent particles.

REFERENCES:
patent: 3113167 (1963-12-01), Sauer
patent: 4692501 (1987-09-01), Mineshima et al.
patent: 4827073 (1989-05-01), Wu
patent: 4892851 (1990-01-01), Ewen et al.
patent: 4912272 (1990-03-01), Wu
patent: 4956122 (1990-09-01), Watts et al.
patent: 5012020 (1991-04-01), Jackson et al.
patent: 5105051 (1992-04-01), Pelrine et al.
patent: 5145819 (1992-09-01), Winter et al.
patent: 5155080 (1992-10-01), Elder et al.
patent: 5177276 (1993-01-01), Beach et al.
patent: 5243114 (1993-09-01), Johnson et al.
patent: 5488191 (1996-01-01), Chu et al.
patent: 5637784 (1997-06-01), Chu et al.
patent: 5661096 (1997-08-01), Winter et al.
patent: 5731254 (1998-03-01), Winter et al.
patent: 6706828 (2004-03-01), DiMaio
patent: 6858767 (2005-02-01), DiMaio et al.
patent: 7129197 (2006-10-01), Song et al.
patent: 7129306 (2006-10-01), DiMaio
patent: 2006/0021231 (2006-02-01), Carey
patent: 2006/0116303 (2006-06-01), Iimura et al.
patent: 2007/0000807 (2007-01-01), Wu et al.
patent: 2007/0043248 (2007-02-01), Wu et al.
patent: 2007/0289897 (2007-12-01), Carey et al.
patent: 2007/0298990 (2007-12-01), Carey et al.
patent: 0426644 (1991-05-01), None
patent: 03/104292 (2003-12-01), None
patent: 2007/011459 (2007-01-01), None
patent: 2007/011462 (2007-01-01), None
patent: 2008/010862 (2008-01-01), None
patent: 2008/030387 (2008-03-01), None

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