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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.:

US 9365788 B1

PDFFull Text
Date of Patent:
Jun. 14, 2016

Filed:

Sep. 12, 2012

Process to produce improved poly alpha olefin compositions

Applicants:

Craig J. Emett, Houston, TX (US);

Mark P. Hagemeister, Houston, TX (US);

Bruce A. Harrington, Houston, TX (US);

Chon Y. Lin, Houston, TX (US);

Phillip T. Matsunaga, Houston, TX (US);

Charles J. Ruff, Houston, TX (US);

Kevin B. Stavens, Houston, TX (US);

Inventors:

Craig J. Emett, Houston, TX (US);

Mark P. Hagemeister, Houston, TX (US);

Bruce A. Harrington, Houston, TX (US);

Chon Y. Lin, Houston, TX (US);

Phillip T. Matsunaga, Houston, TX (US);

Charles J. Ruff, Houston, TX (US);

Kevin B. Stavens, Houston, TX (US);

Assignee:

ExxonMobil Chemical Patents Inc., Baytown, TX (US);

Attorneys:

Luke A. Parsons

Leandro Arechederra, III

Primary Examiner:

In Suk Bullock

Assistant Examiner:

Youngsul Jeong

Int. Cl.
CPC ...
C07C 2/04 (2006.01); C07C 2/02 (2006.01); C07C 2/00 (2006.01); C07C 2/06 (2006.01); C10M 105/04 (2006.01); C10M 169/04 (2006.01); C10M 103/00 (2006.01); C10M 105/32 (2006.01); C10M 169/02 (2006.01); C10M 171/02 (2006.01); C10M 107/10 (2006.01); C10M 111/04 (2006.01);
U.S. Cl.
CPC ...
C10M 105/04 (2013.01); C10M 3/00 (2013.01); C10M 105/32 (2013.01); C10M 107/10 (2013.01); C10M 111/04 (2013.01); C10M 169/02 (2013.01); C10M 169/04 (2013.01); C10M 171/02 (2013.01); C10M 2203/1025 (2013.01); C10M 2203/1065 (2013.01); C10M 2205/003 (2013.01); C10M 2205/024 (2013.01); C10M 2205/0285 (2013.01); C10M 2205/22 (2013.01); C10M 2205/223 (2013.01); C10M 2223/045 (2013.01); C10N 2210/02 (2013.01); C10N 2220/028 (2013.01); C10N 2230/02 (2013.01); C10N 2230/04 (2013.01); C10N 2230/10 (2013.01); C10N 2230/12 (2013.01); C10N 2230/45 (2013.01); C10N 2230/52 (2013.01); C10N 2230/54 (2013.01); C10N 2230/68 (2013.01); C10N 2230/74 (2013.01); C10N 2240/10 (2013.01); C10N 2270/00 (2013.01);
Abstract

This invention is directed to a two-step process for the preparation of improved poly alpha olefins wherein the first step involves oligomerizing low molecular weight linear alpha olefins in the presence of a single site catalyst and the second step involves oligomerization of at least a portion of the product from the first step in the presence of an oligomerization catalyst. The dimer product from the first oligomerization is characterized by a tri-substituted vinylene olefin content of at least 25 wt %.

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