Exxon Chemical Patents, Inc.

Infineum International Limited

Exxon Chemical Company

Keith R Gorda

Jacob I Emert

William B Eckstrom

Joseph V Cusumano

William D Diana

David C Dankworth

Jon E Stanat

Antonio Gutierrez

Warren A Thaler

Raymond F Watts

Richard Henry Schlosberg

Stephen Zushma

David A Young

Michael J Keenan

Edris Eileen Manry

James Peter Stokes

Albert Ilya Yezrielev

Joe R Noles, Jr

Laura A Kahsar

Kerry L Cogen

William B Diana

Joe R Noles

Robert M Koros

Roger K Nibert

Harold Wilbur Margo

HahnSoo Kim

Hahn Soo Kim

William H Cross

Michael J Kennan

Matthew Cunningham

Maria C Chiappelli

A transmission fluid composition contains a major amount of a lubricating oil basestock, and a minor amount of an additive package comprising: (i) a mixture comprising two or more phosphites and/or phosphates; (ii) one or more thioester compounds; (iii) a detergent comprising calcium salicylate; and (iv) a poly(alkylene amine)-based ashless dispersant endcapped with metallocene-catalyzed PAO arms. Such a transmission fluid may be used for controlling/reducing wear in at least partially electrically-powered transmissions and/or for cooling/insulating electrical/electronic components of at least partially electrically-powered drivetrains.

Transmission fluid compositions for hybrid and electric vehicle applications

A lubricating oil composition comprises a major amount of an oil of lubricating viscosity and a minor amount of an unsymmetrical bis-succinimide, or a mixture of unsymmetrical bis-succinimides, of the structure (I): wherein one of Rand Ris a polyisobutylene group having a weight average molecular weight of 400 to 5,000, as determined by GPC with reference to linear polystyrene standards, and the other of Rand Ris a hydrocarbon group made by the metallocene-catalysed polymerisation of an &#x3b1;-olefin feedstock; and x is from 1 to 10 and is the same for all molecules of structure (I), or an average of all molecules of structure (I) in a mixture of molecules of structure (I).

Dispersants for lubricating oil compositions

A power transmitting fluid comprises a major amount of a lubricating oil and a minor amount of an additive composition. The additive composition comprises: 

Power transmitting fluids with improved materials compatibility

Reaction products of maleic and/or succinic acids or anhydrides and primary aliphatic amines are disclosed as effective in reducing the static friction in power transmission fluids.

Power transmission fluids with improved friction characteristics

Lubricating oil compositions having excellent friction stability comprise a base lubricating oil, an oil soluble source of phosphorus and a defined polyalkylene polyamine-based friction modifier that has been reacted with a borating agent to convert at least one secondary amine group into the corresponding boric acid ester or boric acid salt.

Boron-containing lubricating oils having improved friction stability

Power transmission fluids exhibiting improved antiwear properties containing a novel antiwear additive formed by reacting elemental sulfur and a dialkyl phosphite in the presence of an acylated amine compound. Also present in the fluid are dispersant, friction modifier, antioxidant and viscosity modifier.

Power transmission fluids with improved extreme pressure lubrication characteristics and oxidation resistance

The invention pertains to improved lubricating oil dispersants wherein a fractionating polymer is prepared prior to functionalization (e.g., in the Koch reaction) for making dispersant additives. In one aspect, it was discovered that by fractionating a polymer to remove light hydrocarbon and unreacted monomer from the polymer before the carbonylation step of the Koch reaction, the amount of light ester impurities generated was minimized. Light ester is an undesirable byproduct that adversely affects the recycle of the catalyst from the functionalization step of the Koch reaction. The invention also pertains to improved lubricating oil nitrogen-containing dispersant additives derived from fractionated polymer.

Dispersant additives and process

A Koch functionalized product, which is the reaction product of at least one hydrocarbon with carbon monoxide and a nucleophilic trapping agent, is derivatized with a heavy polyamine and a second amine. The hydrocarbon is a hydrocarbon compound or a hydrocarbon polymer. A heavy polyamine is a mixture of polyamines containing small amounts of lower polyamine oligomers such as tetraethylene pentamine and pentaethylenehexamine and containing primarily oligomers with more than 6 nitrogens and more extensive branching. Rubber seals embrittlement is reduced or minimized.

Dispersants derived from heavy polyamine and second amine

A Koch functionalized product, which is the reaction product of at least one hydrocarbon with carbon monoxide and a nucleophilic trapping agent is derivatized with a heavy polyamine. A heavy polyamine is a mixture of polyamines comprising small amounts of lower polyamine oligomers such as tetraethylene pentamine and pentahexamine but primarily oligomers with more than 6 nitrogens and more extensive branching.

Lubricating oil dispersants derived from heavy polyamine

A process for preparing polymeric amides is disclosed. The process comprises sequentially reacting a hydrocarbon polymer functionalized (e.g., via the Koch reaction) to contain acid, ester, thioacid and/or thioester groups with a heavy polyamine to form a partially derivatized product in which at least about 85% of the functional groups are converted to heavy (thio)amide groups, and then reacting the partially derivatized product with an excess of light amine to complete the derivatization by converting substantially all of the remaining functional groups to light (thio)amide groups. Products of the foregoing process are also disclosed, which products are useful as additives in fuels and in lubricants.

Process for preparing polymeric amides useful as additives in fuels and

A hydrocarbon composition functionalized via the Koch reaction which is the reaction product of at least one hydrocarbon having a number average molecular weight of less than 500 and at least one ethylenic double bond per molecule, with carbon monoxide and a nucleophilic trapping agent. The hydrocarbon is usefully functionalized and derivatized, producing, in particular, lubricants suitable for use in two-cycle engines.

Functionalized additives useful in two-cycle engines

A Koch functionalized product which is the reaction product of at least one polymer having a number average molecular weight of at least 500 and at least ethylenic double bond per polymer chain, with carbon monoxide and a nucleophilic trapping agent. The invention includes functionalized polymer, derivatives thereof and methods of making the same.

Growing community of inventors

Little York, NJ, United States of America

Keith R Gorda