Martin A Krevalis

6884761, Apr 26, 2005

Nov 25, 2002

10/302243

Patrick E. Godici - Naperville IL, US
Jeenok T. Kim - Fairfax VA, US
Martin A. Krevalis - Houston TX, US
Richard H. Schlosberg - Bridgewater NJ, US

BP Corporation North America Inc. - Warrenville IL

C10M105/38
C07C069/76

508479, 508485, 252 79, 560103, 560112

The present invention relates, generally, to a high temperature stable mixed polyol ester lubricant composition partly containing an aromatic carboxylic acid ester and a process of making the same. Typically, the aromatic acid ester is benzoic acid, and the lubricant composition preferably comprises a mixture of linear C, i-C, and linear Caliphatic carboxylic acid. The esters are preferably formed from an aliphatic polyol. These mixed polyol esters are useful in aero-derived gas turbine engines.

8298451, Oct 30, 2012

Sep 3, 2009

12/584312

S. Darden Sinclair - Beaumont TX, US
Martin A. Krevalis - Houston TX, US
Dominick N. Mazzone - Wenonah NJ, US
Jean-Luc Martin - Saint Paer, FR
Louis F. Burns - League City TX, US

ExxonMobil Research and Engineering Company - Annandale NJ

H01B 3/24
C10L 1/00
B01J 29/70

252570, 208 14, 208 46

This invention relates to reformer distillates as gassing additives for transformer oils. The reformer distillates have a 1-ring and 2-ring aromatics content of at least 98%, and are added such that the transformer oil contains less than 10 wt % of reformer distillate. The invention also relates to a method for preparing transformer oils containing reformer distillates and having excellent gassing tendency, oxidative stability, viscosity and volatility.

20030201420, Oct 30, 2003

Apr 28, 2003

10/424669

Richard Schlosberg - Baton Rouge LA, US
David Turner - Houston TX, US
Shlomo Antika - Maplewood NJ, US
Martin Krevalis - Baton Rouge LA, US

C09K005/00
F25D001/00

252/068000, 252/067000

There are disclosed refrigeration working fluid compositions comprising tetrafluoroethane refrigerants and certain polyol esters of C-Cbranched alkanoic acids or mixtures of such branched acids with linear C-Cmonoalkanoic acids. The polyols are mono-, di- or technical grade pentaerythritol or trimethylolpropane; the esters exhibit suitable viscosity ranges and miscibility with refrigerants over a broad compositional range. The acids have a defined average effective carbon chain length and a certain degree of methyl branching for polyols other than trimethylolpropane.

20040092411, May 13, 2004

Nov 13, 2002

10/293710

Patrick Godici - Naperville IL, US
Jeenok Kim - Fairfax VA, US
Martin Krevalis - Houston TX, US
Bernie Pafford - Berkeley Heights NJ, US
Haven Aldrich - Baton Rouge LA, US
Richard Schlosberg - Bridgewater NJ, US

C 10M 1 5/38

508/486000

This invention generally relates to a high temperature stable polyol ester lubricant composition containing short chain carboxylic esters and a process for making the same. The polyol ester lubricant compositions are preferably formed from pentaerythritol and a mixture of Cto Ccarboxylic acids in which (1) from 95 to 80 mole %, based on total acids, are Cto Ccarboxylic acid, and (2) from 5 to 20 mole %, based on total acids, are at least one Cto Ccarboxylic acid The polyol ester lubricant compositions of the present invention, specifically those using at least one Cto Ccarboxylic acid, are useful as base stock for high temperature application such as Aviation Turbine Oils and exhibit enhanced anti-deposition and oxidation stability compared with the base polyol ester compositions while maintaining a good viscosity index.

20050215433, Sep 29, 2005

Mar 4, 2005

11/073088

Francisco Benitez - Houston TX, US
John Buchanan - Lambertville NJ, US
Martin Krevalis - Houston TX, US
Steven Silverberg - Seabrook TX, US

A01N043/40
A01N033/00
A01N025/02
A01N037/34

504254000, 504362000, 504326000, 514521000

A composition that comprises a pesticide and an aromatic fluid. A method of preparing a pesticide emulsion that comprises combining a pesticide and an aromatic fluid to form a composition, blending that composition with a surfactant component to form an emulsifiable pesticide concentrate, and mixing that emulsifiable pesticide concentrate with water to form the pesticide emulsion. A method of applying the pesticide emulsion that comprises dispersing the pesticide emulsion onto a crop. A method for inhibiting pests that comprises applying the pesticide emulsion to a crop.

20090111896, Apr 30, 2009

Oct 17, 2008

12/253564

Martin A. Krevalis - Houston TX, US

A61K 31/01

514762

Treatment of seeds with hydrocarbon fluids improve germination under adverse conditions.

57983194, Aug 25, 1998

Jan 16, 1996

8/586117

Richard Henry Schlosberg - Bridgewater NJ
David Wayne Turner - Baton Rouge LA
Martin Anthony Krevalis - Baton Rouge LA
William Joseph Munley - Houston TX
Haven Scott Aldrich - Annandale NJ

Exxon Chemical Patents Inc. - Houston TX

C09K 700
C10M10532

507138

A lubricant which is prepared from at least one synthetic ester composition exhibiting thermal and oxidative stability which comprises the reaction product of 3,5,5-trimethyl-1-hexanol and an acid or anhydride; and a lubricant additive package; whereby the incorporation of an antioxidant in the lubricant additive package for the purpose of maintaining oxidative and thermal stability of the crankcase lubricating oil formulation to at least 20 minutes as measured by HPDSC at 220. degree. C. , 3. 445 MPa air and 0. 5 wt. % dioctyl diphenyl amine can be either reduced or eliminated. The synthetic ester composition preferably exhibits the following additional properties: a metals content of 10 ppm or less metals based on the total synthetic ester composition, an ash content of 15 ppm or less ash based on the total synthetic ester composition, a total acid number of 0. 05 mg KOH/g or less, and a volume resistivity of at least about 1. times. 10. sup. 11 ohm cm.

59424753, Aug 24, 1999

Feb 7, 1997

8/797369

Richard H. Schlosberg - Bridgewater NJ
David Wayne Turner - Baton Rouge LA
Martin A. Krevalis - Baton Rouge LA
Fay H. Gordon - Oxford, GB
Ulrich Witten - Besselsliegh, GB

Exxon Chemical Patents Inc. - Houston TX

C10M12978

508492

A crankcase engine lubricant which comprises the add mixture of the following components: (A) a lubricating oil which comprises the add mixture of the following components: a complex alcohol ester basestock and at least one additional basestock; and (B) an additive package; wherein the crankcase engine lubricant exhibits a percent fuel economy improvement in the range between about 0. 3 to 5. 0%, versus the lubricating oil without the complex alcohol ester basestock.