Stephen Daniel Mckenna

US Patent:

7371713, May 13, 2008

Filed:

May 23, 2003

Appl. No.:

10/444548

Inventors:

Irwin L. Goldblatt - Edison NJ, US
Shean-Jer Chen - Bridgewater NJ, US
Manish R. Patel - Parlin NJ, US
Stephen T. McKenna - Naperville IL, US

Assignee:

Castrol Limited - Swindon, Wiltshire

International Classification:

C10M 159/12
C08F 255/00

US Classification:

508221, 508231, 508232, 508242, 508454, 525282, 525285, 525296, 5253276

Abstract:

A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of maleic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver.

US Patent:

7981847, Jul 19, 2011

Filed:

Feb 11, 2008

Appl. No.:

12/029277

Inventors:

Irwin L. Goldblatt - Edison NJ, US
Shean-Jer Chen - Bridgewater NJ, US
Manish R. Patel - Parlin NJ, US
Stephen T. McKenna - Naperville IL, US

Assignee:

Castrol Limited

International Classification:

C10M 149/00
C10M 159/12
C08F 8/04

US Classification:

508232, 508221, 508241, 508454, 5253276, 5253328, 525338, 525339

Abstract:

A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of maleic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver.

US Patent:

20120323018, Dec 20, 2012

Filed:

Jun 20, 2011

Appl. No.:

13/164374

Inventors:

Irwin L. Goldblatt - Edison NJ, US
Shean-Jer Chen - Bridgewater NJ, US
Manish R. Patel - Parlin NJ, US
Stephen T. McKenna - Naperville IL, US

International Classification:

C07D 207/40
C07C 63/00

US Classification:

548545, 562480

Abstract:

A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of malcic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver. The monomer of the present invention may be grafted to a polyolefin in solutions or melts. Also described is a lubricating oil comprising a base oil and a grafted polyolefin as described above.

US Patent:

20130072710, Mar 21, 2013

Filed:

Sep 21, 2011

Appl. No.:

13/200219

Inventors:

James F. Brazdil - Glen Ellyn IL, US
Mark A. Toft - Somonauk IL, US
Stephen T. McKenna - Naperville IL, US

International Classification:

C07C 253/30
B01J 21/10
G01N 23/20
B01J 23/887

US Classification:

558321, 558320, 558322, 558325, 502304, 502243, 378 71

Abstract:

Catalytic compositions are provided that are effective for providing increased acrylonitrile product without a significant decrease in hydrogen cyanide and/or acetonitrile production and provide an overall increase in production of acrylonitrile, hydrogen cyanide and acetonitrile. The catalytic compositions include a complex of metal oxides and include at least about 15% m-phase plus t-phase by weight and have a weight ratio of m-phase to m-phase plus t-phase of 0.45 or greater.

US Patent:

45473218, Oct 15, 1985

Filed:

Jul 29, 1983

Appl. No.:

6/518362

Inventors:

Edward I. Stiefel - Bridgewater NJ
Stephen McKenna - Oakland CA

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

C07F 1100
C07F 1506

US Classification:

556 14

Abstract:

Compositions of the formula [(Cat. sup. n)]. sub. 3/n [Co(MoS. sub. 4). sub. 2 ] wherein Cat is a mono, di or trivalent cation and n is 1, 2 or 3, respectively, have been prepared in non-aqueous media. The [Co(MoS. sub. 4). sub. 2 ]. sup. 3- anion has the general structure ##STR1## Cat is preferably an alkyl substituted quaternary ammonium compound.

US Patent:

50842595, Jan 28, 1992

Filed:

Mar 15, 1991

Appl. No.:

7/669903

Inventors:

Larry C. Satek - Wheaton IL
Stephen T. McKenna - Lisle IL
Vincent F. Smith - Big Rock IL

Assignee:

Amoco Corporation - Chicago IL

International Classification:

C01B 3512

US Classification:

423277

Abstract:

The preparation, structure, and properties of solid inorganic materials containing aluminum, boron, oxygen and at least one Group VIII metallo element, selected from the group consisting of cobalt and nickel is described. Also described in the use of such materials in catalytic compositions for the conversion of organic compounds. In particular, the new materials having the general formula: (x) (M. sub. m :M'. sub. n)O. (y)Al. sub. 2 O. sub. 3. (z)B. sub. 2 O. sub. 3 where M and M' are metallo elements selected from the group consisting of nickel and cobalt, m and n are numbers from 0 to 1 inclusive, such that m+n=1, and x, y and z are numbers representing molar amounts of the oxides are described as well as the use of such materials in various catalyzed processes including hydrogenation of hydrocarbons and oxygen containing hydrocarbons, dehydrogenation to functionalize alkylaromatic compounds, isomerization of alkylaromatic compounds, oligomerization of olefins, and oxidation of hydrocarbons and oxygen containing hydrocarbons.

US Patent:

48015717, Jan 31, 1989

Filed:

Jul 9, 1987

Appl. No.:

7/071476

Inventors:

Ruth A. Montag - Naperville IL
Stephen T. McKenna - Lisle IL

Assignee:

Amoco Corporation - Chicago IL

International Classification:

B01J 2314

US Classification:

502236

Abstract:

A catalyst and process for production of an alpha, beta-ethylenically unsaturated monocarboxylic acid made by condensing formaldehyde with, for example, propionic acid, which catalyst is made from a SiO. sub. 2 -SnO. sub. 2 mixed-oxide component consisting of porous silica gel and tin (IV) oxide and a cesium ion component.

US Patent:

52644073, Nov 23, 1993

Filed:

Dec 9, 1991

Appl. No.:

7/804801

Inventors:

Larry C. Satek - Wheaton IL
Stephen T. McKenna - Lisle IL
Vincent F. Smith - Big Rock IL

Assignee:

Amoco Corporation - Chicago IL

International Classification:

B01J 2102
C01B 3512

US Classification:

502207

Abstract:

The preparation, structure, and properties of solid inorganic materials containing aluminum, boron, oxygen and at least one Group VIII metallo element, selected from the group consisting of cobalt and nickel is described. Also described is the use of such materials in catalytic compositions for the conversion of organic compounds. In particular, the new materials having the general formula: (x)(M. sub. m :M'. sub. n)O. (y)Al. sub. 2 O. sub. 3. (z)B. sub. 2 O. sub. 3 where M and M' are metallo elements selected from the group consisting of nickel and cobalt, m and n are numbers form 0 to 1, inclusive, such that m+n=1, and x, y and z are numbers representing molar amounts of the oxides are described as well as the use of such materials in various catalyzed processes including hydrogenation of hydrocarbons and oxygen containing hydrocarbons, dehydrogenation to functionalize alkylaromatic compounds, isomerization of alkylaromatic compounds, oligomerization of olefins, and oxidation of hydrocarbons and oxygen containing hydrocarbons.