George Louis Rodriguez

US Patent:

6346636, Feb 12, 2002

Filed:

Jun 23, 2000

Appl. No.:

09/602289

Inventors:

George Rodriguez - Houston TX

Assignee:

ExxonMobil Chemical Patents, Inc. - Houston TX

International Classification:

C07F 506

US Classification:

556173, 556402, 556482, 502103, 502117, 526160, 526943, 568 1

Abstract:

This description addresses ionic compositions of matter comprising positively charged cations [Ct] and negatively charged anions [A] , said anion comprising a central core Group 13 element to which are bound fluoroaryl ligands, at least one of said fluoroaryl ligands being substituted with a siloxy group represented by the symbolsâSiOR , wherein R is a C -C hydrocarbyl or hydrocarbylsilyl substituent. [Ct] may be selected from any capable of use with olefin polymerization catalysts and typically will be from the group consisting of anilinium and ammonium cations, trityl carbenium cations, Group 11 metal cations, silylium cations, the cations of the hydrated salts of Group 1 or 2 metals, and derivatives of the foregoing anilinium, ammonium, trityl carbenium, and silylium cations containing C -C hydrocarbyl, hydrocarbylsilyl, or hydrocarbylamine substituents for one or more hydrogen atoms of said cations. The ionic compositions described can be used to activate olefin polymerization catalysts, and can be prepared so as to be soluble in aliphatic solvents. Syntheses and polymerization are illustrated.

US Patent:

6489480, Dec 3, 2002

Filed:

Dec 11, 2000

Appl. No.:

09/734443

Inventors:

George Rodriguez - Houston TX

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C07D20908

US Classification:

546192, 548469, 548490, 548563, 548577, 548950, 564289, 568 9

Abstract:

This description addresses fluorinated amine compounds meeting the general formula Râ ArFâER , where ArF is a fluoroaryl group, E is nitrogen or phosphorous, each R is independently a C -C hydrocarbyl group; or the two Rs may connect to form an unsubstituted or substituted C -C cycloaliphatic group, Râ is a C -C hydrocarbyl or halogenated hydrocarbyl, and i is 0, 1 or 2. These compounds may be protonated with strong Bronsted acids to form protonated amine compounds that are useful for the preparation of organometallic catalyst-cocatalyst compounds comprising noncoordinating or weakly coordinating anions. The resulting organometallic catalyst-cocatalyst complexes can be effectively used as olefin polymerization catalysts. High number-average molecular weight polymers at high rates of productivity were observed from the use of metallocene catalyst complexes prepared with [N-pentafluorophenyl pyrrolidinium][tetrakis(pentafluorophenyl)borate] of [N-pentafluorophenyl pyrrolidinium][chloride].

US Patent:

6541410, Apr 1, 2003

Filed:

Jun 23, 2000

Appl. No.:

09/599909

Inventors:

George Rodriguez - Houston TX

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

B01J 3100

US Classification:

502103, 502117, 502152, 502155, 502158, 526134, 526160, 526943

Abstract:

This description addresses ionic compositions of matter comprising positively charged cations [Ct] and negatively charged anions [A] , said anion comprising a central core Group 13 element to which are bound fluoroaryl ligands, at least one of said fluoroaryl ligands being substituted with a siloxy group represented by the symbolsâSiOR , wherein R is a C -C hydrocarbyl or hydrocarbylsilyl substituent. [Ct] may be. selected from any capable of use with olefin polymerization catalysts and typically will be from the group consisting of anilinium and ammonium cations, trityl carbenium cations, Group 11 metal cations, silylium cations, the cations of the hydrated salts of Group 1 or 2 metals, and derivatives of the foregoing anilinium, ammonium, trityl carbenium, and silylium cations containing C -C hydrocarbyl, hydrocarbylsilyl, or hydrocarbylamine substituents for one or more hydrogen atoms of said cations. The ionic compositions described can be used to activate olefin polymerization catalysts, and can be prepared so as to be soluble in aliphatic solvents. Syntheses and polymerization are illustrated.

US Patent:

6809209, Oct 26, 2004

Filed:

Sep 17, 2002

Appl. No.:

10/239030

Inventors:

George Rodriguez - Houston TX

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C07F 506

US Classification:

556 1, 502103, 502117, 526160, 526943, 556 12, 556173, 556174, 556187, 556189, 568 2, 568 6

Abstract:

The invention addresses an composition of matter comprising a cation [Ct] and an anion [A] , the anion comprises a core Group-13 element bound to partially or completely fluorinated fluoroaryl ligands, at least one of the fluoroaryl ligands is substituted with a Group-15 element that has been rendered essentially inert for subsequent chemical reaction through its unbonded electron pair by substituting an electron-withdrawing group on it. [Ct] may be selected from anilinium and ammonium cations, trityl carbenium cations, Group-11 metal cations, silylium cations, the cations of the hydrated salts of Group-1 or -2 metals, and derivatives of the foregoing anilinium, ammonium, trityl carbenium, and silylium cations containing C -C hydrocarbyl, hydrocarbylsilyl, or hydrocarbylamine substituents for one or more hydrogen atoms of said cations. The compositions can be used to activate olefin polymerization catalysts, and can be prepared to dissolve in aliphatic solvents. Syntheses and polymerization are illustrated.

US Patent:

6822057, Nov 23, 2004

Filed:

Dec 11, 2000

Appl. No.:

09/734296

Inventors:

George Rodriguez - Houston TX

Assignee:

Exxon Mobil Chemical Patents Inc. - Houston TX

International Classification:

C08F 444

US Classification:

526133, 526160, 526161, 526943, 502103, 502104, 502152

Abstract:

Fluorinated amine compounds, Râ ArFâER , where ArF is a fluoroaryl substituent, E is nitrogen or phosphorous, each R is independently a C -C hydrocarbyl substituent, or the two Rs may be connected to form an unsubstituted or substituted C -C cycloaliphatic substituent, Râ is a C -C hydrocarbyl or halogenated hydrocarbyl, and i is 0, 1 or 2 are disclosed. These compounds may be protonated and complexed with suitable substantially noncoordinating anions to prepare polymerization catalyst components. When these catalyst components are combined with organometallic catalyst precursors, the catalyst precursor is activated to a catalyst. This catalyst is combined with monomer under olefin polymerization conditions to prepare polymer. High number-average molecular weight polymers at high productivity rates were observed from using metallocene catalysts activated with [N-pentafluorophenyl pyrrolidinium][tetrakis(pentafluorophenyl)borate].

US Patent:

6909008, Jun 21, 2005

Filed:

Oct 29, 2002

Appl. No.:

10/494002

Inventors:

George Rodriguez - Houston TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C07F007/02
C07F005/02
B01J031/00

US Classification:

556 9, 556 12, 556173, 556402, 502103, 502117, 502154, 526134, 526163, 568 1

Abstract:

An activator for olefin polymerization catalysts is disclosed. One aspect of the activator is that it comprises a group-13 central atom connected to at least one fluorinated aryl ring that is itself substituted with a silyl acetylenic group. Some embodiments employ a neutral activator and others employ the activator as an anion coupled with a ligand-abstracting cation. These activators are discrete molecules.

US Patent:

6919291, Jul 19, 2005

Filed:

Oct 31, 2001

Appl. No.:

10/415158

Inventors:

George Rodriguez - Houston TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

B01J031/00
B01J037/00
C08F004/44
C08F005/06
C08F009/02

US Classification:

502103, 502117, 502155, 502167, 526134, 526163, 556170, 556174, 568 9, 568 16

Abstract:

Zwitterionic compositions of matter comprising cations [Ct] and anions connected together with substantially rigid fluorinated linking groups are described. These zwitterionic compositions serve as cocatalysts. They activate olefin polymerization catalysts, and can dissolve in aliphatic solvents. Synthesis and polymerization are illustrated.

US Patent:

7067686, Jun 27, 2006

Filed:

Jul 21, 2005

Appl. No.:

11/186259

Inventors:

George Rodriguez - Houston TX, US
David Arthur Cano - Spring TX, US
David H. McConville - Houston TX, US
Frank C. Rix - League City TX, US

Assignee:

Univation Technologies, LLC - Houston TX

International Classification:

C07F 7/00
C07F 15/00
C07F 9/00

US Classification:

556 52, 556 43, 556 46, 556 58, 556136, 556140

Abstract:

Disclosed are methods of producing di-, tri- or tetrabenzyl-metal compounds comprising combining a metal salt with a (benzyl)MgXcompound at from less than 30 C. , wherein n is 1 or 2 and X is a monoanionic group; wherein the combining takes place in a diluent mixture comprising from 0 to 80% by volume of an ether diluent and a diluent selected from the group consisting of aromatic diluents, halogenated hydrocarbon diluents, and mixtures thereof. The methods are characterized by employing various mixtures of diluents, and in some cases, minimal to no ether diluent.