David S Choi

Address:

1959 N Woodland Ln, Arlington Heights, IL 60004

Phone:

(847)2559432

VIN:

2T2HK31U97COO4091

Make:

LEXUS

Model:

RX 350

Year:

2007

US Patent:

61566926, Dec 5, 2000

Filed:

Apr 24, 1997

Appl. No.:

8/842251

Inventors:

Philip O. Nubel - Naperville IL
Craig Lane Hunt - Naperville IL
David S. Choi - Naperville IL
Tobin J. Marks - Evanston IL

Assignee:

BP Amoco Corporation - Chicago IL

International Classification:

B01J 3100

US Classification:

502155

Abstract:

A ruthenium-containing metathesis catalyst system which contains a ruthenium compound (A), a phosphorus compound (B), and a compound (C) containing a carbon-to-carbon triple bond. The mole ratio of compounds A:B:C is typically in the range of about 1. 0:0. 01-100:0. 01-100. The ruthenium compound (A) is a Ru(II), Ru(III), or Ru(IV) compound containing an anionic ligand (X) and optionally an arene ligand and optionally a phosphorus compound ligand. The phosphorus compound (B) is optional if the ruthenium compound (A) contains a phosphorus-containing ligand. The catalyst system is employed in processes to metathesize olefins, including ring-opening metathesis polymerization of cyclic olefins, metathesis of acyclic olefins, acyclic diene metathesis oligomerization or polymerization, cross-metathesis of cyclic and acyclic olefins, ring-closing metathesis, metathesis depolymerization of unsaturated polymers, and metathesis of functionalized olefins.

US Patent:

61598909, Dec 12, 2000

Filed:

Oct 28, 1998

Appl. No.:

9/181352

Inventors:

Philip O. Nubel - Naperville IL
Craig Lane Hunt - Naperville IL
David S. Choi - Naperville IL
Tobin J. Marks - Evanston IL

Assignee:

BP Amoco Corporation - Chicago IL

International Classification:

B01J 3100

US Classification:

502155

Abstract:

A ruthenium-containing metathesis catalyst system which contains a ruthenium compound (A), a phosphorus, arsenic, or antimony compound (B), and a compound (C) containing at least one carbon-to-carbon triple bond. The mole ratio of compounds A:B:C is typically in the range of about 1. 0:0. 01-100:0. 01-500. The ruthenium compound (A) is a Ru(II), Ru(III), or Ru(IV) compound containing an anionic ligand (X) and optionally an arene ligand and optionally a phosphorus, arsenic, or antimony compound ligand. The compound (B) is optional if the ruthenium compound (A) contains a phosphorus-, arsenic-, or antimony-containing ligand. Hydrogen gas is used as an activator. A process for metathesis of olefins involves reacting at least one olefin with the catalyst system described herein.