David A Corbin

US Patent:

6384271, May 7, 2002

Filed:

May 4, 2001

Appl. No.:

09/848842

Inventors:

Stephen Ernest Jacobson - Princeton NJ
David Richard Corbin - West Chester PA

Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C07C30901

US Classification:

562 45, 562 58

Abstract:

A process that can be used for sulfonating, sulfating, or sulfamating an organic compound is disclosed. The process can comprise, consist essentially of, or consist of, contacting the organic compound with sulfur trioxide under a condition sufficient to effect the sulfonation, sulfation, or sulfamation of the organic compound. The organic compound can be an aromatic compound, alcohol, carbohydrate, amine, amide, protein, or combinations of two or more thereof. The sulfur trioxide can be present in a complex comprising an inorganic support such as zeolite, silicalite, silica, titanosilicate, borosilicate, clay, aluminophosphate, and combinations of two or more thereof.

US Patent:

6409940, Jun 25, 2002

Filed:

Oct 13, 2000

Appl. No.:

09/687684

Inventors:

Anne M. Gaffney - West Chester PA
David R. Corbin - West Chester PA

Assignee:

Conoco Inc. - Houston TX

International Classification:

C07C 102

US Classification:

252373, 4236481, 423650, 423651, 4234182

Abstract:

A process of preparing a product gas mixture comprising CO and H from a light hydrocarbon and O mixture is disclosed. The process includes contacting a reactant gas mixture comprising a C -C hydrocarbon and a source of molecular oxygen with a catalytically effective amount of a supported catalyst comprising nickel and rhodium. The catalyst and reactant gas mixture is maintained at catalytic partial oxidation promoting conditions of temperature and pressure during the contacting period, which is preferably 10 milliseconds or less. Certain preferred catalysts comprise an alloy of about 10-50 weight percent nickel and about 0. 01-10 weight percent rhodium on a porous refractory support structure.

US Patent:

6448435, Sep 10, 2002

Filed:

Feb 4, 2002

Appl. No.:

10/067639

Inventors:

Stephen Ernest Jacobson - Princeton NJ
David Richard Corbin - West Chester PA

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C07C31100

US Classification:

562 39, 562 37, 530408

Abstract:

A process that can be used for sulfonating, sulfating, or sulfamating an organic compound is disclosed. The process can comprise, consist essentially of, or consist of, contacting the organic compound with sulfur trioxide under a condition sufficient to effect the sulfonation, sulfation, or sulfamation of the organic compound. The organic compound can be an aromatic compound, alcohol, carbohydrate, amine, amide, protein, or combinations of two or more thereof. The sulfur trioxide can be present in a complex comprising an inorganic support such as zeolite, silicalite, silica, titanosilicate, borosilicate, clay, aluminophosphate, and combinations of two or more thereof.

US Patent:

6462215, Oct 8, 2002

Filed:

Feb 4, 2002

Appl. No.:

10/067643

Inventors:

Stephen Ernest Jacobson - Princeton NJ
David Richard Corbin - West Chester PA

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C07C30500

US Classification:

558 41, 558 39, 536118, 536122

Abstract:

A process that can be used for sulfonating, sulfating, or sulfamating an organic compound is disclosed. The process can comprise, consist essentially of, or consist of, contacting the organic compound with sulfur trioxide under a condition sufficient to effect the sulfonation, sulfation, or sulfamation of the organic compound. The organic compound can be an aromatic compound, alcohol, carbohydrate, amine, amide, protein, or combinations of two or more thereof. The sulfur trioxide can be present in a complex comprising an inorganic support such as zeolite, silicalite, silica, titanosilicate, borosilicate, clay, aluminophosphate, and combinations of two or more thereof.

US Patent:

6508860, Jan 21, 2003

Filed:

Sep 21, 2001

Appl. No.:

09/960194

Inventors:

Sudhir S. Kulkarni - Wilmington DE
David J. Hasse - Bel Air MD
David R. Corbin - West Chester PA
Aspi N. Patel - Newark DE

Assignee:

LAir Liquide - Societe Anonyme aDirectoire et Conseil de Surveillance pour lEtude et lExploitation des Procedes Georges Claude - Paris

International Classification:

B01D 5322

US Classification:

95 51, 95 45, 95 54, 96 4, 96 14

Abstract:

A mixed matrix membrane for gas separations is provided with a nonporous continuous phase of a polymer and a dispersed phase of molecular sieve particles reacted with a monofunctional organosilicon compound. The monofunctional organosilicon compound is characterized by (a) at least one silicon substituent group which reacts or is compatible with the polymer, and (b) at most one displaceable radical that can react with the molecular sieve. A process for making a selectively gas permeable mixed matrix membrane involves reacting a molecular sieve with the monofunctional organosilicon compound, uniformly dispersing the reacted sieve with a polymer, and forming the resulting mixed matrix composition into a membrane structure. These mixed matrix membranes provide an improved combination of permeability and selectivity as compared to polymer-only membranes and mixed matrix membranes in which the molecular sieve is not reacted with a monofunctional organosilicon compound.

US Patent:

6603048, Aug 5, 2003

Filed:

Sep 29, 2000

Appl. No.:

09/677121

Inventors:

David Richard Corbin - West Chester PA
Tucker Norton - Avondale PA

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C07C 2726

US Classification:

568868, 568869, 568870

Abstract:

A process is provided to separate 1,3-propanediol, glycerol, or a mixture of 1,3-propanediol and glycerol from a biological mixture using a molecular sieve.

US Patent:

6689483, Feb 10, 2004

Filed:

Nov 28, 2001

Appl. No.:

09/319746

Inventors:

George Lok Kwong Hoh - Wilmington DE
David Richard Corbin - West Chester PA
Steven B. Oblath - late of Hockessin DE

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C08F 610

US Classification:

428522, 524482, 525370, 5253297, 5253302, 5253303

Abstract:

The present invention relates to an improved packaging composition comprising an ethylene copolymer selected from ethylene acid or ester copolymers such as ethylene vinyl acetate, ethylene/acrylic acid or methacrylic acid copolymers which optionally contain a third comonomer such as an alkyl acrylate and the corresponding ionomers of said copolymers which are blended with a hydrophilic zeolite to form a composition which removes residual acids or small esters from the polymeric or ionomeric composition containing such residual acids. The acids may be present as initial by products in the copolymerization process or may be degradation products. The use of these compositions is particularly important when the resins are formed into packages or other fabricated material which are exposed to acid sensitive material.

US Patent:

6740143, May 25, 2004

Filed:

Nov 1, 2002

Appl. No.:

10/275190

Inventors:

David Richard Corbin - West Chester PA
Henry Charles Foley - Hockessin PA
Mark Brandon Shiflett - New Castle DE

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

B01D 5322

US Classification:

96 11, 55524, 55DIG 5

Abstract:

The invention concerns nanoporous carbon membranes which have been synthesized by pyrolysis of selected polymers on porous substrates to produce thin mixed matrix carbon film with pores for separation of small molecules.