Elizabeth Webb Walker

US Patent:

20150329443, Nov 19, 2015

Filed:

May 1, 2015

Appl. No.:

14/701552

Inventors:

Suzzy Chen Hsi HO - Princeton NJ, US
David B. SPRY - Baton Rouge LA, US
Elizabeth Louise WALKER - Stockertown PA, US

Assignee:

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY - Annandale NJ

International Classification:

C07C 6/04
C07C 2/58
C07C 6/06

Abstract:

A process for removing cyclopentene from the Cfraction of a light olefin feed useful in an isoparaffin/olefin alkylation process redistributes fragments of Colefins formed by ring opening metathesis (ROM) in the presence of a catalyst. The higher molecular weight olefins produced in the reaction can be blended into the gasoline blend pool without imposing a significant or any vapor pressure penalty. Cyclopentene present in the Cportion of the feed undergoes various ring opening reactions while other pentenes are converted to hydrocarbon products of lower and higher molecular weight relative to pentene. The reduction in cyclopentene results in a reduced tendency for the formation of acid soluble oil (ASO) during alkylation.

US Patent:

20140088262, Mar 27, 2014

Filed:

Sep 20, 2013

Appl. No.:

14/032638

Inventors:

- Baytown TX, US
Man Kit Ng - Annandale NJ, US
Suzzy C.H. Ho - Princeton NJ, US
Elizabeth L. Walker - Stockertown PA, US
Hong Cheng - Bridgewate NJ, US
Patrick Brant - Seabrook TX, US

Assignee:

ExxonMobil Chemical Patent Inc. - Baytown TX

International Classification:

C08F 10/06
C08F 10/02

US Classification:

5253337, 525 55, 525379

Abstract:

This invention relates to a polyolefin comprising one or more aromatic moieties according to the following formulae:wherein the PO is the residual portion of a vinyl terminated macromonomer (VTM) having had a terminal unsaturated carbon of an allylic chain and a vinyl carbon adjacent to the terminal unsaturated carbon;Ar is attached to the terminal portion of the VTM to provide PO—Ar or at the vinylidene carbon of the VTM to provide PO—CH(Ar)CH; andAr is a substituted or unsubstituted aromatic group.