March 21, 2011

CAS databases provide millions of journal article references from more than 10,000 major scientific journals worldwide, patent and patent family references from 61 patent authorities around the world, and other reputable web sources.

The following patent record is from the CAplusSM database.

CAPLUS COPYRIGHT 2011 ACS

Patent Number: US 7902415
Title: Processes for dimerizing or isomerizing olefins in the presence of hexadentate bimetallic complex
Inventor(s): Small, Brooke L.
Patent Assignee(s): Chevron Phillips Chemical Company LP, USA
Source: U.S. Pat. Appl. Publ., 21pp.; Chemical Indexing Equivalent to 151:101673 (WO) CODEN: USXXCO
Language: English
Abstract:
A process for dimerizing α-olefins comprises contacting an α-olefin having 3 or more C-atoms, a hexadentate bimetallic complex such as I and a cocatalyst such as, an example, aluminoxane and dimerizing the α-olefin, whereby at least 20% weight of the α-olefin has been converted to oligomers, at least 30% weight of the oligomers are dimers and at least 85% mol. of the dimers are linear. Thus, reacting at 23-32º  in a 2L Zipperclave reactor a mixture containing 400 g 1-decene, 400 g 1-dodecene and 8.6 mL modified methylaluminoxanes in the presence of 50 mg I gave 513 g of olefin oligomers containing 77.4% weight dimers, 22.2% weight trimers and 0.4% weight tetramers (75.4% weight of a dimer fraction was linear dimers).

View the full-text patent from USPTO.

Recent News

 
    April 16, 2014 | New Format Adopted for Taiwanese
    Granted Patent Numbers in CAS Databases

    March 26, 2014 | New STN Platform Enhancements
    Available, Increase Efficiency of Search Workflow

    February 24, 2014 | INFULL and DEFULL Databases
    Now Available via STN Viewer

                                                                       More News >> 

 Media Contact

 Name: Rhonda Ross
 Phone: 614-447-3624                                       
 Email: cas-pr@cas.org