Nam H. Tran - Pasadena TX Joseph N. Christopher - League City TX Timothy J. Michalec - Needville TX
Assignee:
Akzo Nobel NV - Arnhem
International Classification:
C07F 506
US Classification:
556187
Abstract:
Organometallic compounds, as exemplified by trimethylaluminum, can be purified by recrystallization from a solvent by cooling. The organometallic compound is first dissolved in a solvent forming a solution and the purified organometallic compound is then recrystallized, under cooling conditions, from the solvent.
Joseph N Christopher - League City TX Kevin R. Squire - Kingwood TX Jo Ann M. Canich - Houston TX Timothy D. Shaffer - Houston TX
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
C07F 500
US Classification:
534 15, 502100, 502150, 502152
Abstract:
A cationic Group 3 or Lanthanide metal complex for coordination polymerization of olefins is disclosed. The precursor metal complex is stabilized by a monoanionic bidentate ancillary ligand and two monoanionic ligands. The ancillary ligand and the transition metal form a metallocycle having at least five primary atoms, counting any -bound cyclopentadienyl group in the metallocycle as two primary atoms. Olefin polymerization is exemplified.
A cationic Group 3 or Lanthanide metal complex for coordination polymerization of olefins is disclosed. The precursor metal complex is stabilized by a monoanionic bidentate ancillary ligand and two monoanionic ligands. The ancillary ligand and the transition metal form a metallocycle having at least five primary atoms, counting any π-bound cyclopentadienyl group in the metallocycle as two primary atoms. Olefin polymerization is exemplified.
Joseph N Christopher - League City TX Kevin R. Squire - Kingwood TX Jo Ann M. Canich - Houston TX Timothy D. Shaffer - Houston TX
Assignee:
Exxon Mobil Chemical Patents Inc. - Houston TX
International Classification:
C07F 500
US Classification:
534 15, 502100, 502150, 502152
Abstract:
A cationic Group 3 or Lanthanide metal complex for coordination polymerization of olefins is disclosed. The precursor metal complex is stabilized by a monoanionic bidentate ancillary ligand and two monoanionic ligands. The ancillary ligand and the transition metal form a metallocycle having at least five primary atoms, counting any -bound cyclopentadienyl group in the metallocycle as two primary atoms. Olefin polymerization is exemplified.
Kirkwood Community College
Professor of Chemistry
Kirkwood Community College Aug 2012 - Jul 2017
Associate Professor of Chemistry
Kirkwood Community College Aug 2007 - Jul 2012
Assistant Professor of Chemistry
Kirkwood Community College Aug 2004 - Jul 2007
Instructor of Chemistry
Kirkwood Community College Aug 2004 - Jul 2007
Assistant Professor
Education:
University of Iowa 2002 - 2003
Master of Arts In Teaching, Masters, Master of Arts, Teaching, Education
University of Iowa 1992 - 1997
Doctorates, Doctor of Philosophy, Philosophy, Chemistry
Grinnell College 1988 - 1992
Bachelors, Bachelor of Arts, Chemistry
Jesuit College Preparatory
Jun 2013 to Aug 2013 Tanzania 16 Branch as Cash controller
Education:
University of Dar es Salaam 2011 to 2014 Bachelor of Commerce in AccountingGalanos secondary 2009 to 2011Nyansincha secondary 2005 to 2008Advanced secondary certificate in educationOrdinary secondary certificate in education