البحث في مجموعات البراءات الوطنية والدولية

1. (WO2013055483) POLY ALPHA OLEFIN COMPOSITIONS AND PROCESS TO PRODUCE POLY ALPHA OLEFIN COMPOSITIONS

Pub. No.:    WO/2013/055483    International Application No.:    PCT/US2012/054853
Publication Date: Fri Apr 19 01:59:59 CEST 2013 International Filing Date: Thu Sep 13 01:59:59 CEST 2012
IPC: C10M 111/04
C10M 171/02
C10M 107/10
C10N 30/02
C10N 30/10
C10N 30/12
C10N 40/25
Applicants: EXXONMOBIL CHEMICAL PATENTS INC.
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
EMETT, Craig, J.
HAGEMEISTER, Mark, P.
HARRINGTON, Bruce, A.
MATSUNAGA, Phillip, T.
RUFF, Charles, J.
STAVENS, Kevin, B.
LIN, Chon-Yie
NANDAPURKAR, Pramod, J.
Inventors: EMETT, Craig, J.
HAGEMEISTER, Mark, P.
HARRINGTON, Bruce, A.
MATSUNAGA, Phillip, T.
RUFF, Charles, J.
STAVENS, Kevin, B.
LIN, Chon-Yie
NANDAPURKAR, Pramod, J.
Title: POLY ALPHA OLEFIN COMPOSITIONS AND PROCESS TO PRODUCE POLY ALPHA OLEFIN COMPOSITIONS
Abstract:
This invention is directed to a two-step process for the preparation of 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%. The poly alpha olefins produced in the second oligomerization step are characterized by very low viscosity and excellent Noack volatility.