The Lubrizol Corporation

Other

Brent R Dohner

Jody A Kocsis

Patrick E Mosier

Virginia A Carrick

Jonathan S Vilardo

William D Abraham

John Kent Pudelski

Mark C Davies

Marina Baum

Paul E Adams

Richard M Lange

Matthew D Gieselman

Haihu Qin

Barton J Schober

Jason R Brown

Daniel C Visger

James A Supp

Jeffry G Dietz

Daniel J Saccomando

Jerry L Rutter

Michael R Sutton

John S Manka

Mohamed G Fahmy

David Price

Jack C Kelley

Alexander Sammut

Stephen H Roby

W Preston Barnes

Shawn Dickess

Mark F Wilkes

Melody Wilk

Frank V Zalar

Steven A Goodlive

Raymond M Calder

Thomas B Pavilon

Patrick E Moster

Isao Nakagawa

Wolfie Kotzen

Frederic Martin

John K Pudelski

Kazayoshi Miyoshi

A lubricant suitable for lubricating a two-stroke cycle engine which is fueled with a liquid fuel having a volatility less than that of gasoline comprises an oleaginous synthetic ester, a normally liquid solvent having a kinematic viscosity of less than about 5 or 2 mm/s at 100&#xb0; C. and a nitrogen-containing dispersant bearing a hydrocarbyl group of at least 26 carbon atoms and having a nitrogen content of at least 4 percent by weight. The nitrogen content of the lubricant is at least about 0.3 percent by weight.

Lubricant additive composition suitable for lubricating two-stroke engines fueled with heavy fuels

This invention relates to a method of lubricating an internal combustion engine comprising at least one of a crankcase, a gear and a wet-clutch, said method comprising supplying to said crankcase, gear, and wet-clutch a lubricating composition containing: (a) an oil of lubricating viscosity; and (b) a friction modifying additive which is the reaction product of a hydrocarbyl-substituted succinic anhydride and an acid-functionalized amine compound.

Method of friction control

A lubricating composition comprising an oil of lubricating viscosity, 1 to 1000 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material, and at least one additional lubricant additive provides beneficial effects on properties such as deposit control, oxidation, and filterability in engine oils.

Titanium and molybdenum compounds and complexes as additives in lubricants

A lubricant composition suitable for lubricating an internal combustion engine comprises: (a) an oil of lubricating viscosity having a viscosity index of at least 105 and a kinematic viscosity at 100 C of less than 7 mm2s-1; (b) 0.01 to 2 weight percent of a friction modifier represented by the structure [I]; (c) 0.5 to 4 weight percent of a poly(meth)acrylate viscosity modifier polymer; (d) 0 to 500 parts per million by weight of molybdenum in the form of an oil-soluble molybdenum compound; and (e) 0 to 200 parts per million by weight of boron in the form of an oil-soluble boron compound. 

Lubricating composition containing friction modifier and viscosity modifier

The invention provides a lubricating composition containing (a) 0.001 wt % to 15 wt % of a polymer with radial or star architecture; (b) an overbased detergent; (c) a dispersant; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.

Star polymer lubricating composition

A lubricating composition contains an oil of lubricating viscosity and 0.5 to 10 percent by weight of a poly(meth)acrylate viscosity modifier polymer comprising (i) 15 weight percent to 35 weight percent monomer units of methyl(meth)acrylate, (ii) 0 to 10 weight percent monomer units of one or more C-Calkyl(meth)acrylates, (iii) 50 to 85 weight percent monomer units of one or more C-Calkyl(meth)acrylates, and (iv) 0 to 10 weight percent monomer units of one or more nitrogen-containing monomers. Such a lubricating composition exhibits a high viscosity index and may impart improved fuel economy to an internal combustion engine.

Polymethacrylates as high VI viscosity modifiers

Titanium compounds and complexes as additives in lubricants

A lubricant composition comprising an oil of lubricating viscosity, an amino-functionalized acrylic or methacrylic-containing polymer, comprising about 2 percent to about 8 percent by weight of an amine moiety bearing a tertiary amino group, attached to said polymer through an ester, amide, or imide linkage; and a nitrogen-containing dispersant, provides reduced friction to an internal combustion engine and improved fuel economy.

Engine lubricant for improved fuel economy

A composition for lubricating an internal combustion engine includes an oil of lubricating viscosity; a predominantly linear alkylbenzenesulfonate detergent having a metal ratio of at least 8; and a combination of hindered phenolic ester antioxidant and aromatic amine antioxidant. The amount of any phenate detergent is less than 15% by weight of the total amount of detergents.

Sulfonate detergent system for improved fuel economy

A composition of matter comprising an amine acylated with a hydrocarbyl group substituted carboxylic acylating agent containing an average of from 1.3 to 1.6 groups derived from &#x3b1;,&#x3b2;-unsaturated carboxylic compounds perof the hydrocarbyl group, wherein the hydrocarbyl group hasdetermined by GPC ranging from 1500 to 3000, the amine comprises polyamine bottoms and said acylated amine has total base number (TBN) ranging from 17 to 35. A method for preparing the composition, lubricating oils containing the composition and, in another embodiment, lubricating oil compositions of this invention further comprising a metal overbased sulfonate detergent.

Low-chlorine, polyolefin-substituted, with amine reacted, alpha-beta unsaturated carboxylic compounds

A friction modifier composition is disclosed that comprises an oil of lubricating viscosity and containing a friction-reducing amount of an additive comprising;

Triglycerides as friction modifiers in engine oil for improved fuel

This invention relates to a composition, comprising: (A) a metal, amine or ammonium salt of a compound represented by the formula ##STR1## wherein in Formula (A-I), X.sup.1, X.sup.2 and X.sup.3 and X.sup.4 are independently O or S, X.sup.1 and X.sup.2 can be NR.sup.3, a and b are independently zero or 1, and R.sup.1, R.sup.2 and R.sup.3 are independently hydrocarbyl groups and R.sup.3 can be hydrogen; and (B) a thiocarbamate represented by the formula

Additive compositions for lubricants and functional fluids

This invention relates to a low-viscosity lubricating oil and functional fluid compositions, comprising: a major amount of an oil having a kinematic viscosity of up to about 4 cST at 100.degree. C.; and a minor antiwear amount of

Low-viscosity lubricating oil and functional fluid compositions

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Concord, OH, United States of America

Brent R Dohner