Joosup S Shim

US Patent:

51050420, Apr 14, 1992

Filed:

Nov 21, 1990

Appl. No.:

7/617455

Inventors:

Brent A. Aufdembrink - Wilmington DE
Charles T. Kresge - Westchester PA
Quang N. Le - Cherry Hill NJ
Joosup Shim - Wenonah NJ
Stephen S. Wong - Medford NJ

Assignee:

Mobil Oil Corp. - Fairfax VA

International Classification:

C07C 266
C07C 15107

US Classification:

585458

Abstract:

There is provided a sulfated layered titanium oxide catalyst. Relatively long chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a relatively long chain alkylating agent under alkylation reaction conditions in the presence of this sulfated layered material as alkylation catalyst. The layered material contains titanium oxide in the layers and oxide pillars separating the layers. The alkylation activity of the catalyst is increased by including sulfate ions in the layered material. This increased alkylation activity may be obtained by contacting the layered material with an aqueous solution of a sulfate compound such as sulfuric acid.

US Patent:

49622560, Oct 9, 1990

Filed:

Jan 25, 1990

Appl. No.:

7/469999

Inventors:

Quang N. Le - Cherry Hill NJ
David O. Marler - Deptford NJ
John P. McWilliams - Woodbury NJ
Mae K. Rubin - Bala Cynwyd PA
Joosup Shim - Wenonah NJ
Stephen S. Wong - Medford NJ

Assignee:

Mobil Oil Corp. - Fairfax VA

International Classification:

C07C 266

US Classification:

585467

Abstract:

Long chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a long chain alkylating agent in the presence of catalyst comprising a synthetic porous crystalline material characterized by an X-ray diffraction pattern including interplanar d-spacings at 12. 36. +-. 4, 11. 03. +-. 2, 8. 83. +-. 14, 6. 18. +-. 12, 6. 00. +-. 10, 4. 06. +-. 07, 3. 91. +-. 07 and 3. 42. +-. 06 Angstroms.

US Patent:

44565399, Jun 26, 1984

Filed:

Jul 29, 1982

Appl. No.:

6/402877

Inventors:

Joosup Shim - Wenonah NJ

Assignee:

Mobil Oil Corporation - New York NY

International Classification:

C10M 148

US Classification:

252 467

Abstract:

Oxidation in lubricants is reduced by adding to the lubricant a small portion of a triazole/dithiophosphate reaction product.

US Patent:

44288557, Jan 31, 1984

Filed:

Aug 25, 1982

Appl. No.:

6/411150

Inventors:

Derek A. Law - Pitman NJ
Joosup Shim - Wenonah NJ

Assignee:

Mobil Oil Corporation - New York NY

International Classification:

C10M 326

US Classification:

252 77

Abstract:

High water content fluids, i. e. oil-in-water emulsion hydraulic fluids are stabilized and/or made resistant to hard water by a co-emulsifier system consisting of water soluble alkyl alkanol amines or a heterocyclic amine.

US Patent:

50435086, Aug 27, 1991

Filed:

Feb 23, 1990

Appl. No.:

7/483690

Inventors:

Brent A. Aufdembrink - Wilmington DE
Charles T. Kresge - West Chester PA
Quang N. Le - Cherry Hill NJ
Joosup Shim - Wenonah NJ
Stephen S. Wong - Medford NJ

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C07C 264
C07C 15107

US Classification:

585455

Abstract:

Relatively long chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a relatively long chain alkylating agent under alkylation reaction conditions in the presence of a layered material as an alkylation catalyst. The layered material contains titanate in the layers and oxide pillars separating the layers. The layers also contain vacancies and/or metals incorporated therein. The degree of alkylation is a function of the interplanar d-spacing of the pillared material, which is, in turn a function of the chain length of the swelling agent used to prepare the layered material.

US Patent:

42605016, Apr 7, 1981

Filed:

May 11, 1979

Appl. No.:

6/037966

Inventors:

Joosup Shim - Wenonah NJ

Assignee:

Mobil Oil Corporation - New York NY

International Classification:

C10M 138

US Classification:

252 475

Abstract:

Lubricant compositions containing oleaginous materials and, in an amount sufficient to impart oxidation stability and corrosion resistance thereto, an adduct of a benzotriazole compound and an alkyl vinyl ether or a vinyl ester of a carboxylic acid in combination with an alkyl dimercapto thiadiazole.

US Patent:

49122770, Mar 27, 1990

Filed:

May 30, 1989

Appl. No.:

7/358105

Inventors:

Brent A. Aufdembrink - Wilmington DE
Charles T. Kresge - Westchester PA
Quang N. Le - Cherry Hill NJ
Joosup Shim - Wenonah NJ
Stephen S. Wong - Medford NJ

Assignee:

Mobil Oil Corporation - New York NY

International Classification:

C07C 264
C07C 268
C07C 15107

US Classification:

583455

Abstract:

Relatively long chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a relatively long chain alkylating agent under alkylation reaction conditions in the pressure of a layered material as an alkylation catalyst. The layered material contains titanate in the layers and oxide pillars separating the layers. The layers also contain vacancies and/or metals incorporated therein.

US Patent:

51070499, Apr 21, 1992

Filed:

Oct 5, 1990

Appl. No.:

7/593171

Inventors:

Quang N. Le - Cherry Hill NJ
Joosup Shim - Wenonah NJ
Stephen S. Wong - Medford NJ

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C07C 266

US Classification:

585467

Abstract:

The thermal stability of poly alpha-olefin (PAO) lubricant basestocks are improved by reacting an aromatic compound with the alpha-olefin oligomer. The PAO materials are prepared by oligomerization of olefins such as 1-decene in the presence of a Lewis acid oligomerization catalyst. The resulting lubricant basestock product exhibits high viscosity, viscosity index and low pour point in addition to the unique enhancement in thermal stability. The reaction between the PAO and the aromatic is carried out in the presence of a solid, cyrstalline alkylation catalyst identified by a specific X-ray diffraction pattern. The preferred catalyst for this purpose is the material known as MCM-22.