The Lubrizol Corporation

Other

Areva T&d UK Limited

Mark C Davies

Michael R Sutton

David J Moreton

William R S Barton

Stephen J Cook

Dean Thetford

Patrick E Mosier

Matthew D Gieselman

Paul R Stevenson

Barton J Schober

Marina Baum

Daniel C Visger

David Price

William Barton

Ewan E Delbridge

John Kent Pudelski

Jonathan S Vilardo

Brent R Dohner

John R Johnson

Craig J Jones

Mark F Wilkes

Jody A Kocsis

Virginia A Carrick

Mitchell M Jackson

Alexandra Mayhew

Jola Z Adamczewska

Natasha K Horn

Yanshi Zhang

Jeffry G Dietz

Daniel J Saccomando

Christopher L Friend

Joanne L Jones

Jack C Kelley

David M Hobson

Rodney John McAtee

Chor Huang

Paul R Vincent

Thomas S Derevjanik

Shaun P Carney

Douglas T Jayne

Jolanta Z Adamczewska

Colin J H Morton

Malcolm MacDuff

Emma Fahey

Rodney J Mcatee

William H O'RYAN

Jola Adamczewska

William RS Barton

Natasha Horn

John Johnson

Bart Schober

Daniel Visger

Michael Tyler

Brent Whitehead

Philip John Fitz

Keith Morris Abbott

Bodo Wixmerten

William H O'ryan

John K Pudelski

The instant disclosure generally relates to lubricating compositions having an oil of lubricating viscosity, an ashless phosphorus-containing antiwear agent an alkaline earth metal detergent, an ashless antioxidant, and an ashless dispersant where the lubricating compositions are substantially free of zinc and methods of lubricating an engine with such lubricating compositions. The instant lubricating compositions are useful as alternative lubricating compositions the reduce and/or eliminate zinc to achieve a desired performance goal of the lubricating composition.

Zinc free lubricating compositions and methods of using the same

The disclosed technology relates to lubricants for compression ignition internal combustion engines, particularly those demonstrating at least one of improved seals performance, reduced deposit formation, and excellent durability. The present invention provides a low zinc lubricating composition comprising (a) an oil of lubricating viscosity, (b) a borated dispersant, and (c) a metal-free organo-phosphorus anti-wear additive, wherein the lubricating composition is substantially free of a metal containing sulfur coupled alkyl phenol compound. Further, the low zinc lubricating composition contains zinc in an amount less than 600 ppm by weight of the composition.

Low zinc lubricant composition

The invention provides a method of lubricating a 2-stroke marine diesel cylinder liner with a lubricating composition having a total base number of 10 to 25 mg KOH/g. The invention further provides a lubricating composition for lubricating the 2-stroke marine diesel cylinder liner.

Marine diesel lubricating composition

The invention provides a lubricating composition containing an antiwear agent and an oil of lubricating viscosity. The invention further relates to the use of the lubricating composition in an internal combustion engine, or a driveline device.

Lubricating composition containing an antiwear agent

A lubricating composition suited to use in a marine diesel engine includes an oil of lubricating viscosity and an amino carboxylate compound of formula (I): NRR&#x2014;((CHR)NR)&#x2014;(CHR)&#x2014;COY, where Rand Rare independently selected from &#x2014;(CHR)&#x2014;COY', H, and CCalkyl and wherein at least one of Rand Ris &#x2014;(CHR)&#x2014;COY&#x2032;; or wherein NRRis a cyclic structure; Y and Y&#x2032; are independently selected from &#x2014;OR, NHR, and &#x2014;N(R); each Ris independently selected from C-Calkyl and C-Calkenyl; R, Rand Rare independently selected from H and C-Calkyl; Ris selected from H, C-Calkyl, and (CHR)NH; x is from 2 to 4; and n is at least 1, except where NRRis a cyclic structure, where n is at least 0.

Michael adduct amino esters as total base number boosters for marine diesel engine lubricating compositions

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

The disclosed technology relates to additive packages for lubricating compositions in diesel and gasoline powered vehicles. In particular, the disclosed technology provides an additive package that can be added to a lubricating composition with oil of lubricating viscosity to improve at least one of (A) piston deposit, (B) piston cleanliness, (C) soot induced viscosity thickening, and (D) oxidation induced viscosity thickening.

Lubricant additive booster system

The present invention provides a process for preparing a polymer, employing the steps of: (1) contacting a free radical initiator; a chain transfer agent containing a thiocarbonyl thio group and a free radical leaving group; and a radically polymerizable monomer, to form a polymer chain; and (2) contacting the polymer chain of step (1) with at least one of a polyvalent coupling agent, a polymerization inhibitor, a grafting acylating agent, an amine and an oil of lubricating viscosity. The invention further provides compositions and uses for the polymer.

Process for preparing polymers and compositions thereof

The invention relates to lubricating compositions, processes of making such lubricating compositions, and method of using such lubricating compositions. The lubricating compositions of the present invention include a dispersant comprising a quaternary ammonium salt, a phosphorus-containing compound, a metal dialkyldithiophosphate, a derivative of a hydroxyl carbonyl compound and an amine and/or an alcohol. These compositions provide balanced deposit control and wear performance without causing any seal compatibility issues.

Quaternary ammonium salt containing compositions that provide balanced deposit control and wear performance without seal compatibility issues

Oxidative degradation may be reduced in a lubricant composition which contains an oil of lubricating viscosity and at least about 1 percent by weight of a C1-C3 alkyl ester of a carboxylic acid of about 12 to about 24 carbon atoms, by including within the lubricant composition a sulfonate detergent in an amount sufficient to provide at least about 0.2 percent by weight sulfonate soap to the lubricant composition, wherein the weight ratio of sulfonate soap to phenate soap in the lubricant composition is at least about 0.35:1.

Engine oil formulations for biodiesel fuels

A lubricant composition containing a metal-containing detergent in an amount to provide at least about 2 TBN to the lubricant, and a dispersant comprising an oleophilic portion comprising at least about 40 carbon atoms and an acid-bearing portion, characterized in having a TAN:TBN ratio of at least about 0.8, exhibits good TBN retention.

Lubricants with good TBN retention

The invention provides a composition comprising: (a) a star polymer comprising: (i) a core portion comprising a polyvalent (meth)acrylic monomer, oligomer or polymer thereof or a polyvalent divinyl non-acrylic monomer, oligomer or polymer thereof; and (ii) at least two arms of polymerized alkyl(meth)acrylate ester; and (b) an oil of lubricating viscosity, wherein the core portion further comprises a functional group of formula (I):&#x2014;CH&#x2014;C(R)(C(&#x2550;O)A)-Y&#x2014;&#x2003;&#x2003;(I)wherein Ris hydrogen, a linear or branched alkyl group containing 1 to 5 carbon atoms; A is nitrogen or oxygen; and Y is a free radical leaving group selected from the group consisting of one or more atoms or groups of atoms which may be transferred by a radical mechanism under the polymerization conditions, a halogen, an &#x2014;O&#x2014;N&#x2550; group and an &#x2014;S&#x2014;C(&#x2550;S)&#x2014; group. The invention further provides the use of the composition in an oil of lubricating viscosity as a dispersant, a viscosity modifier or a precursor to a dispersant viscosity modifier.

Star polymers and compositions thereof

A lubricating composition containing an oil of lubricating viscosity, a high molecular weight polyolefin that is at least substantially free of ethylene-derived monomer units, and an overbased metal containing detergent, is capable of reducing intake valve deposits in a direct injection engine.

Lubricating oil composition with anti-mist additive

The lubricant for an internal combustion engine fueled by a biodiesel fuel (that is, a liquid fuel containing a C1-C4 alkyl ester of a carboxylic acid of about 12 to about 24 carbon atoms) exhibits improved resistance to oxidative degradation when the lubricant contains an alkali metal detergent.

Growing community of inventors

Belper, United Kingdom

Mark C Davies