IP Library › Granted Patent US 6,984,599
Granted Patent B2
US 6,984,599 · App. 10/421,052 · Granted Jan 10, 2006

Olefin polymerization catalysts based on hydroxyl-depleted calixarene ligands

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Quick Facts
Patent No.
US 6,984,599
App. No.
10/421,052
Granted
Jan 10, 2006
Kind
B2
Abstract

A catalyst system useful for polymerizing olefins is disclosed. The catalyst system includes an organometallic complex that incorporates a Group 3 to 10 transition metal and a hydroxyl-depleted calixarene ligand that is chelated to the metal. Molecular modeling studies reveal that organometallic complexes incorporating such calixarene ligands, when combined with an activator such as MAO, should actively polymerize olefins.

Claims (8)

1. A catalyst system which comprises an activator and a complex, wherein the complex comprises a Group 4 transition metal and a hydroxyl-depleted calixarene ligand that is chelated to the metal.

2. The catalyst system of claim 1 wherein the activator is selected from the group consisting of alkyl alumoxanes, alkylaluminum compounds, aluminoboronates, organoboranes, ionic borates, and ionic aluminates.

3. A process which comprises polymerizing one or more olefins in the presence of a catalyst system of claim 1 .

4. The catalyst system of claim 1 wherein the hydroxyl-depleted calixarene ligand is a p-alkylcalixarene.

5. The catalyst system of claim 1 wherein the hydroxyl-depleted calixarene ligand is selected from the group consisting of calix[4]arenes, calix[6]arenes, and calix[8]arenes.

6. The catalyst system of claim 1 wherein the hydroxyl-depleted calixarene ligand has the structure:

wherein each R is independently hydrogen or a C 1 –C 10 alkyl or C 6 –C 10 aryl group.

7. The catalyst system of claim 6 wherein each R is tert-butyl.

Assignments (18)
RELEASE OF SECURITY INTEREST Recorded Jan 22, 2014
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: EQUISTAR CHEMICALS, LP
Reel/Frame 032112/0786 →
APPOINTMENT OF SUCCESSOR ADMINISTRATIVE AGENT Recorded Jan 22, 2014
From: UBS AG, STAMFORD BRANCH
To: BANK OF AMERICA, N.A.
Reel/Frame 032112/0863 →
RELEASE OF SECURITY INTEREST Recorded Jan 22, 2014
From: CITIBANK, N.A.
To: EQUISTAR CHEMICALS, LP
Reel/Frame 032113/0644 →
RELEASE OF SECURITY INTEREST Recorded Jan 22, 2014
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: EQUISTAR CHEMICALS, LP
Reel/Frame 032113/0684 →
RELEASE OF SECURITY INTEREST Recorded Jan 22, 2014
From: BANK OF AMERICA, N.A.
To: EQUISTAR CHEMICALS, LP
Reel/Frame 032113/0730 →
SECURITY AGREEMENT Recorded May 19, 2010
From: EQUISTAR CHEMICALS, LP
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 024402/0655 →
SECURITY AGREEMENT Recorded May 18, 2010
From: EQUISTAR CHEMICALS, LP
To: CITIBANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 024397/0861 →
SECURITY AGREEMENT Recorded May 7, 2010
From: EQUISTAR CHEMICALS. LP
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 024351/0001 →
SECURITY AGREEMENT Recorded May 6, 2010
From: EQUISTAR CHEMICALS, LP
To: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS COLLATERAL AGENT
Reel/Frame 024342/0443 →
RELEASE OF SECURITY INTEREST Recorded May 5, 2010
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: LYONDELL CHEMICAL TECHNOLOGY, L.P.; EQUISTAR CHEMICALS, LP
Reel/Frame 024337/0705 →
RELEASE OF SECURITY INTEREST Recorded May 5, 2010
From: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
To: EQUISTAR CHEMICALS, LP
Reel/Frame 024337/0186 →
RELEASE OF SECURITY INTEREST Recorded May 5, 2010
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: LYONDELL CHEMICAL TECHNOLOGY, L.P.; EQUISTAR CHEMICALS, LP
Reel/Frame 024337/0856 →
RELEASE OF SECURITY INTEREST Recorded May 4, 2010
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: EQUISTAR CHEMICALS, LP
Reel/Frame 024329/0535 →
SECURITY AGREEMENT Recorded Oct 30, 2009
From: EQUISTAR CHEMICALS, LP
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 023449/0687 →
SECURITY AGREEMENT Recorded Apr 9, 2009
From: EQUISTAR CHEMICALS, LP
To: CITIBANK, N.A., AS ADMINISTRATIVE AGENT AND COLLATERAL AGENT
Reel/Frame 022678/0860 →
SECURITY AGREEMENT Recorded Aug 4, 2008
From: BASELL POLYOLEFINE GMBH; ARCO CHEMICAL TECHNOLOGY L.P.; ARCO CHEMICAL TECHNOLOGY, INC.; ATLANTIC RICHFIELD COMPANY; BASELL NORTH AMERICA, INC.; BASELL POLYOLEFIN GMBH; LYONDELL CHEMICAL COMPANY; EQUISTAR CHEMICALS, L.P.
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 021354/0708 →
GRANT OF SECURITY INTEREST IN UNITED STATES PATENTS AND PATENT APPLICATIONS Recorded Mar 26, 2008
From: BASELL POLYOLEFINE GMBH; ARCO CHEMICAL TECHNOLOGY L.P.; ARCO CHEMICAL TECHNOLOGY, INC.; ATLANTIC RICHFIELD COMPANY; BASELL NORTH AMERICA, INC.; EQUISTAR CHEMICALS. LP.; LYONDELL CHEMICAL COMPANY; LYONDELL CHEMICAL TECHNOLOGY, L.P.; LYONDELL PETROCHEMICAL COMPANY; NATIONAL DISTILLERS AND CHEMICAL CORPORATION; OCCIDENTAL CHEMICAL CORPORATION; OLIN CORPORATION; QUANTUM CHEMICAL CORPORATION; BASELL POLYOLEFIN GMBH
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 020704/0562 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 3, 2003
From: NAGY, SANDOR
To: EQUISTAR CHEMICALS, LP
Reel/Frame 014229/0549 →