Linda M Benjamin

US Patent:

49393006, Jul 3, 1990

Filed:

Nov 16, 1987

Appl. No.:

7/121181

Inventors:

Linda A. Benjamin - Philadelphia PA
Joseph E. Barbiarz - Dobbs Ferry NY
Stephen D. Pastor - Basel, CH

Assignee:

Ciba-Geigy Corporation - Ardsley NY

International Classification:

C07C12300

US Classification:

564225

Abstract:

Aminic orthoester derivatives of the formulae ##STR1## are effective in stabilizing organic materials against oxidative, thermal and actinic degradation.

US Patent:

51045796, Apr 14, 1992

Filed:

Jun 24, 1988

Appl. No.:

7/211482

Inventors:

Linda A. Benjamin - Horsham PA
Derek A. Law - Yardley PA
Andrew G. Horodysky - Cherry Hill NJ

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C10M 146
C10M10574

US Classification:

252 466

Abstract:

It has now been discovered that oligomers of C. sub. 6 - C. sub. 20 alpha-olefins, such as 1-decene, with branch ratios below 0. 19 and high viscosity indices (HVI) can be functionalized to provide unique phosphite derivatives. Functionalized polyalpha-olefin lubricants compositions are prepared with superior properties by adding functionalized organophosphites to the olefinic bond of HVI-PAO. The invention encompasses a process for the preparation of lubricant range hydrocarbons containing phosphonate functional groups, comprising; reacting olefinic C. sub. 20 + polyalpha-olefin oligomers having a branch ratio of less than 0. 19 and phosphite ester in a mixture with peroxide catalyst at elevated temperature whereby phosphite ester adduct of said polyalpha-olefin is formed; separating said reaction mixture products and recovering said adduct.

US Patent:

50715771, Dec 10, 1991

Filed:

Dec 30, 1988

Appl. No.:

7/292054

Inventors:

Linda A. Benjamin - Horsham PA
Andrew G. Horodysky - Cherry Hill NJ
Derek A. Law - Yardley PA
Nancy M. Page - Yardley PA

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C10M 146
C10M10574

US Classification:

252 466

Abstract:

Novel phosphite derivatives of propylene based lube olefins are novel lubricating fluid media with internal synergistic multifunctional extreme pressure, antiwear and antioxidant properties. These compounds exhibit the same multifunctional characteristics when used in minor additive amounts in either mineral or synthetic lubricating oils as well as fuels.

US Patent:

48989800, Feb 6, 1990

Filed:

Jun 29, 1988

Appl. No.:

7/212852

Inventors:

Linda A. Benjamin - Horsham PA
Stephen D. Pastor - Basel, CH
John J. Luzzi - Carmel NY

Assignee:

Ciba-Geigy Corporation - Ardsley NY

International Classification:

C07C14802

US Classification:

568 23

Abstract:

An improved process for preparing dithiobisphenols wherein the appropriate phenol is reacted with sulfur monochloride in the presence of substantially molar amounts of an aliphatic or heterocyclic amine.

US Patent:

53992768, Mar 21, 1995

Filed:

Apr 15, 1991

Appl. No.:

7/685968

Inventors:

Linda A. Benjamin - Horsham PA
Andrew G. Horodysky - Cherry Hill NJ
Derek A. Law - Yardley PA
Shi-Ming Wu - Newtown PA

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C10M15912
C10M13700

US Classification:

252 499

Abstract:

Alkoxylated- or polyalkoxylate-amine-phosphite derived olefin adducts are superior as lubricating fluid media and as multifunctional additives with internal synergistic antioxidant and extreme pressure/antiwear properties for both mineral and synthetic lubricating oils as well as fuels.

US Patent:

49833103, Jan 8, 1991

Filed:

Dec 30, 1988

Appl. No.:

7/292080

Inventors:

Linda A. Benjamin - Horsham PA
Andrew G. Horodysky - Cherry Hill NJ
Derek A. Law - Yardley PA
Shi-Ming Wu - Newtown PA

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C10M10572
C10M10574

US Classification:

252 327E

Abstract:

Hydrocarbyl thiophosphoric acid-phosphite derived olefin and polymeric olefin adducts are superior as lubricating fluid media with internal synergistic multifunctional antiwear, antioxidant properties, and as multifunctional extreme pressure/antiwear additives for both mineral and synthetic lubricating oils as well as fuels.