Syed Tahir Qadri

US Patent:

6673953, Jan 6, 2004

Filed:

Dec 10, 2001

Appl. No.:

10/006226

Inventors:

Teddy M. Keller - Fairfax Station VA
Joseph Perrin - Centerville VA
Syed B. Qadri - Fairfax Station VA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

C07F 1702

US Classification:

556143, 556 28, 556 43, 556 46, 556 58, 556136, 521 93, 252502, 252503

Abstract:

The invention comprises a chemical composition with the structure shown below. The composition can be polymerized or pyrolyzed, forming transition metal nanoparticles homogeneously dispersed in a thermoset or carbon composition. The size of the nanoparticles can be controlled by manipulating the number and arrangement of functional groups in the composition and by changing the conditions of the polymerization or pyrolysis. The resulting thermosets and carbon compositions have useful magnetic, electric, mechanical, catalytic and/or optical properties. wherein A is selected from the group consisting of H, wherein M is a metal selected independently from the group consisting of Fe, Mn, Ru, Co, Ni, Cr and V; wherein Rx is independently selected from the group consisting of an aromatic, a substituted aromatic group and combinations thereof; wherein Ry is independently selected from the group consisting of an aromatic, a substituted aromatic group and combinations thereof; wherein m is 0; wherein s is 0; wherein z is 0; and wherein m and s are independently determined in each repeating unit.

US Patent:

6846345, Jan 25, 2005

Filed:

Jul 26, 2002

Appl. No.:

10/216469

Inventors:

Teddy M. Keller - Fairfax Station VA, US
Syed B. Qadri - Fairfax Station VA, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B22F 916
C07F 1702

US Classification:

75255, 75370, 428402, 556 28, 556136, 556143

Abstract:

A process of making metal nanoparticles comprising the steps of: providing a precursor composition comprising at least one metallic compound and at least one organic compound; wherein the organic compound is selected from the group consisting of an ethynyl compound, a metal-ethynyl complex, and combinations thereof, wherein the precursor composition is a liquid or solid at room temperature; and heating the precursor composition under conditions effective to produce metal nanoparticles. A metal nanoparticle composition comprising metal nanoparticles dispersed homogenously in a matrix selected from the group consisting of ethynyl polymer, crosslinked ethynyl polymer, amorphous carbon, carbon nanotubes, carbon nanoparticles, graphite, and combinations thereof.

US Patent:

6884861, Apr 26, 2005

Filed:

Dec 10, 2001

Appl. No.:

10/006385

Inventors:

Teddy M. Keller - Fairfax Station VA, US
Joseph Perrin - Centerville VA, US
Syed B. Qadri - Fairfax Station VA, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

C08F038/00

US Classification:

526285, 526346, 524440, 524174, 4234475, 428408, 428367

Abstract:

The present invention provides for a composition comprising:.

US Patent:

6890504, May 10, 2005

Filed:

Aug 28, 2003

Appl. No.:

10/652081

Inventors:

Teddy M. Keller - Fairfax Station VA, US
Syed B. Qadri - Fairfax Station VA, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

C01B031/34
B01J023/00
C07F015/00

US Classification:

423440, 4234475, 502185, 556143

Abstract:

The invention comprises a chemical composition with the structure shown below. The composition can be polymerized or pyrolyzed, forming transition metal nanoparticles homogeneously dispersed in a thermoset or carbon composition. The size of the nanoparticles can be controlled by manipulating the number and arrangement of functional groups in the composition and by changing the conditions of the polymerization or pyrolysis. The resulting thermosets and carbon compositions have useful magnetic, electric, mechanical, catalytic and/or optical properties.

US Patent:

7198771, Apr 3, 2007

Filed:

Aug 28, 2003

Appl. No.:

10/652082

Inventors:

Teddy M. Keller - Fairfax Station VA, US
Joseph Perrin - Centerville VA, US
Syed B. Qadri - Fairfax Station VA, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

C07F 17/02

US Classification:

423440, 4234475, 502185, 556143, 556 28, 556 43, 556 46, 556 58, 556136, 521 93

Abstract:

The invention comprises a chemical composition with the structure shown below. The composition can be polymerized or pyrolyzed, forming transition metal nanoparticles homogeneously dispersed in a thermoset or carbon composition. The size of the nanoparticles can be controlled by manipulating the number and arrangement of functional groups in the composition and by changing the conditions of the polymerization or pyrolysis. The resulting thermosets and carbon compositions have useful magnetic, electric, mechanical, catalytic and/or optical properties. wherein A is selected from the group consisting of H,wherein M is a metal selected independently from the group consisting of Fe, Mn, Ru, Co, Ni, Cr and V;wherein Ry is independently selected from the group consisting of an aromatic, a substituted aromatic group and combinations thereof;.

US Patent:

7273509, Sep 25, 2007

Filed:

Jun 24, 2004

Appl. No.:

10/875806

Inventors:

Teddy M. Keller - Fairfax Station VA, US
Syed B. Qadri - Fairfax Station VA, US

Assignee:

The United States of America as of of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B22F 9/24

US Classification:

75362, 75369

Abstract:

A process of making metal nanoparticles comprising the steps of: providing a precursor composition comprising at least one metallic compound and at least one organic compound; wherein the organic compound is selected from the group consisting of an ethynyl compound, a metal-ethynyl complex, and combinations thereof; wherein the precursor composition is a liquid or a solid at room temperature; and heating the precursor composition under conditions effective to produce metal nanoparticles. A metal nanoparticle composition comprising metal nanoparticles dispersed homogenously in a matrix selected from the group consisting of ethynyl polymer, crosslinked ethynyl polymer, amorphous carbon, carbon nanotubes, carbon nanoparticles, graphite, and combinations thereof.

US Patent:

7347885, Mar 25, 2008

Filed:

Jun 24, 2004

Appl. No.:

10/875807

Inventors:

Teddy M. Keller - Fairfax Station VA, US
Syed B. Qadri - Fairfax Station VA, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

C22C 19/07

US Classification:

75255, 420435, 977777

Abstract:

A process of making metal nanoparticles comprising the steps of: providing a precursor composition comprising at least one metallic compound and at least one organic compound; wherein the organic compound is selected from the group consisting of an ethynyl compound, a metal-ethynyl complex, and combinations thereof; wherein the precursor composition is a liquid or solid at room temperature; and heating the precursor composition under conditions effective to produce metal nanoparticles. A metal nanoparticle composition comprising metal nanoparticles dispersed homogenously in a matrix selected from the group consisting of ethynyl polymer, crosslinked ethynyl polymer, amorphous carbon, carbon nanotubes, carbon nanoparticles, graphite, and combinations thereof.

US Patent:

7374597, May 20, 2008

Filed:

Jun 24, 2004

Appl. No.:

10/875805

Inventors:

Teddy M. Keller - Fairfax Station VA, US
Syed B. Qadri - Fairfax Station VA, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

C22C 22/00
C22C 38/00

US Classification:

75255, 420 82, 420434, 977777

Abstract:

A process of making metal nanoparticles comprising the steps of: providing a precursor composition comprising at least one metallic compound and at least one organic compound; wherein the organic compound is selected from the group consisting of an ethynyl compound, a metal-ethynyl complex, and combinations thereof; wherein the precursor composition is a liquid or solid at room temperature; and heating the precursor composition under conditions effective to produce metal nanoparticles. A metal nanoparticle composition comprising metal nanoparticles dispersed homogenously in a matrix selected from the group consisting of ethynyl polymer, crosslinked ethynyl polymer, amorphous carbon, carbon nanotubes, carbon nanoparticles, graphite, and combinations thereof.