Michael T Elder

US Patent:

6403772, Jun 11, 2002

Filed:

Mar 6, 1998

Appl. No.:

09/029801

Inventors:

John A. Ewen - Houston TX
Robert W. Strozier - Houston TX
Michael J. Elder - Elkton MD

Assignee:

Montell Technology Company, BV

International Classification:

C07F 708

US Classification:

532 9, 556 11, 556 22, 556 23, 556 43, 556 46, 556 47, 556 52, 556 53, 556 90, 556126, 534 15, 502102, 502103, 502117, 502152, 502154, 502158

Abstract:

New metallocene compounds are described where the ligand contains at least one open-pentadienyl containing radical characterized by a cyclic or acyclic, six electron, delocalized, five atomic center structure. These metallocenes can advantageously be used in catalyst systems for the polymerization of olefins to generate a wide variety of different polymers including HDPE, LLDPE, ethylenelpropylene/(diene) elastomers, tactiospecific C3+-olefin polymers, intimate mixture thereof and the like.

US Patent:

6444833, Sep 3, 2002

Filed:

Dec 15, 1999

Appl. No.:

09/461858

Inventors:

John A. Ewen - Houston TX
Michael J. Elder - Elkton MD
Robert L. Jones - Elkton MD

Assignee:

Basell Technology Company BV - Hoofddorp

International Classification:

C07F 1700

US Classification:

556 11, 556 12, 556 21, 556 28, 556 30, 556 43, 556 53, 556 58, 556 70, 556 87, 556406, 534 11, 534 15, 549 3, 549 32, 502103, 502117, 526160, 526943

Abstract:

A class of metallocene compounds is disclosed having the general formula (I): wherein Y is a moiety of formula (II) wherein A, B and D, same or different from each other, are selected from an element of the groups 14 to 16 of the Periodic Table of the Elements (new IUPAC version), with the exclusion of nitrogen and oxygen; R , R , R , R and R are hydrogen or hydrocarbon groups, Z is selected from a moiety of formula (II) as described above and from a moiety of formula (III): wherein R , R , R and R , are hydrogen or hydrocarbon groups; L is a divalent bridging group; M is an atom of a transition metal selected from those belonging to group 3, 4, 5, 6 or to the lanthanide or actinide groups in the Periodic Table of the Elements (new IUPAC version), X, same or different, is hydrogen, a halogen, a R , OR , OSO CF , OCOR , SR , NR or PR group, wherein the substituents R are hydrogen or alkyl groups; p is an integer of from 0 to 3, being equal to the oxidation state of the metal M minus 2. The above metallocenes are particular useful in the polymerization of propylene.

US Patent:

7452949, Nov 18, 2008

Filed:

Dec 6, 2004

Appl. No.:

10/581985

Inventors:

Yoshikuni Okumura - Kanagawa, JP
Ilya Nifant'ev - Moscow, RU
Michael J. Elder - Columbia MD, US
Pavel V. Ivchenko - Moscow, RU
Vladimir V. Bagrov - Moscow, RU

Assignee:

Basell Polyolefine GmbH - Wesseling

International Classification:

C08F 4/42

US Classification:

526160, 526170, 526943, 526348, 556 53

Abstract:

The present invention relates to organometallic transition metal compounds of the formula (I).

US Patent:

7504354, Mar 17, 2009

Filed:

Nov 2, 2004

Appl. No.:

10/578059

Inventors:

Michael J. Elder - Rockville MD, US
Robert L. Jones - Oakland CA, US
John A. Ewen - Lake Placid FL, US

Assignee:

Basell Polyolefine GmbH - Wesseling

International Classification:

C08F 4/6592
C08F 4/642

US Classification:

502155, 502103, 526160, 526161, 526165

Abstract:

The present invention relates to organometallic transition metal compounds of the formula (I), a catalyst composition comprising at least one of the organometallic transition metal compound and an olefin polymerization process in the presence of one of the catalyst composition.

US Patent:

7531672, May 12, 2009

Filed:

Dec 17, 2003

Appl. No.:

10/539683

Inventors:

Michael J. Elder - Rockville MD, US
Robert L. Jones - Frankfurt, DE

Assignee:

Basell Polyolefine GmbH - Wesseling

International Classification:

C07D 209/52
C07D 333/76

US Classification:

548516, 548402, 549 51

Abstract:

The present invention relates to a process for preparing heterocyclic ketones of the formulae (I) and (la), by reacting a heterocyclic compound of the formula (II), with an α, β-unsaturated carboxylic acid of the formula (III), or with its anhydride of the formula (IV), where Ris hydrogen or a C-Ccarbon-containing group, Ris hydrogen or a C-Ccarbon-containing group, or Rand Rtogether form a cyclic ring system, Ris a C-Ccarbon-containing group and X is an element of the 16th group of the Periodic Table or is a divalent nitrogen group —(N—R)—, where Ris an electron-withdrawing radical which is selected from the group consisting of perhalogenated C-Ccarbon-containing radicals and C-Corganosulfonyl groups.

US Patent:

7544749, Jun 9, 2009

Filed:

Feb 5, 2004

Appl. No.:

10/543961

Inventors:

Robert L. Jones - Frankfurt, DE
Naka Seidel - Frankfurt, DE
Michael J. Elder - Columbia MD, US
John A. Ewen - Lake Placid FL, US

Assignee:

Basell Polyolefine GmbH - Wesseling

International Classification:

C08F 4/72
C08F 4/64

US Classification:

526172, 526161, 526351

Abstract:

A catalyst system obtained by reacting at least one chiral transition metal compound and at least one cocatalyst, where the chiral transition metal compound is a transition metal compound of formula (Ia) or one of its enantiomers of the formula (Ia*),.

US Patent:

7723450, May 25, 2010

Filed:

Jun 2, 2005

Appl. No.:

11/597346

Inventors:

Robert L. Jones - Frankfurt, DE
Michael J. Elder - Rockville MD, US
Jennifer Kipke - Frankfurt, DE
Alexander Koeppl - Limburgerhof, DE
Markus Schopf - Bonn, DE
John Ewen - Lake Placid FL, US

Assignee:

Basell Polyolefine GmbH - Wesseling

International Classification:

C08F 4/50

US Classification:

526160

Abstract:

The present invention relates to organometallic transition metal compounds of the formula (I)ZAZMX  (I)where.

US Patent:

7851644, Dec 14, 2010

Filed:

Jun 28, 2007

Appl. No.:

11/823802

Inventors:

John A. Ewen - Houston TX, US
Michael J. Elder - Elkton MD, US
Yuri A. Dubitsky - Milan, IT

Assignee:

Basell Polyolefine GmbH - Wesseling

International Classification:

C08F 7/00
C07F 17/00

US Classification:

556 11, 556 12, 556 21, 556 28, 556 30, 556 43, 556 53, 556 56, 556 87, 556408, 556 70, 534 11, 534 15, 549 3, 549 32, 502117, 502103, 526128, 526149, 526150, 5263481, 5263485, 526351, 526352

Abstract:

A new class of heterocyclic metallocenes, a catalytic system containing them and a process for polymerizing addition polymerizable monomers using the catalytic system are disclosed; the heterocyclic metallocenes correspond to the formula (I): YR″ZMeQPwherein Y is a coordinating group containing a six π electron central radical directly coordinating Me, to which are associated one or more radicals containing at least one non-carbon atom selected from B, N, O, Al, Si, P, S, Ga, Ge, As, Se, In, Sn, Sb and Te; R″ is a divalent bridge between the Y and Z groups; Z is a coordinating group, optionally being equal to Y; Me is a transition metal; Q is halogen or hydrocarbon substituents; P is a counterion; i is 0 or 1; j is 1-3; jj is 0-2; k is 1-3; and l is 0-2.