The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2011
Filed:
May. 06, 2008
Daniel C. Knowles, Southbury, CT (US);
Jesus R. Fabian, Wethersfield, CT (US);
Vilen Vilan Kosover, Cheshire, CT (US);
Susan Ferrarotti, New Hartford, CT (US);
E. Brian Fox, Monroe, CT (US);
Frank Deblase, Hopewell Junction, CT (US);
Daniel C. Knowles, Southbury, CT (US);
Jesus R. Fabian, Wethersfield, CT (US);
Vilen Vilan Kosover, Cheshire, CT (US);
Susan Ferrarotti, New Hartford, CT (US);
E. Brian Fox, Monroe, CT (US);
Frank DeBlase, Hopewell Junction, CT (US);
Chemtura Corporation, Middlebury, CT (US);
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 C-Cα-olefin monomers in the presence of hydrogen, a C-Csaturated hydrocarbon, e.g., a C-Csaturated straight-chain hydrocarbon, and a catalyst system in a reaction vessel, wherein the C-Csaturated straight-chain hydrocarbon has about the same number of carbon atoms as the C-Cα-olefin monomers. The C-Csaturated 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.