SG171382A1 - Lubricating composition containing a polymer functionalised with a carboxylic acid and an aromatic polyamine - Google Patents

Lubricating composition containing a polymer functionalised with a carboxylic acid and an aromatic polyamine Download PDF

Info

Publication number
SG171382A1
SG171382A1 SG2011036902A SG2011036902A SG171382A1 SG 171382 A1 SG171382 A1 SG 171382A1 SG 2011036902 A SG2011036902 A SG 2011036902A SG 2011036902 A SG2011036902 A SG 2011036902A SG 171382 A1 SG171382 A1 SG 171382A1
Authority
SG
Singapore
Prior art keywords
amine
lubricating composition
group
functionalised
polymer
Prior art date
Application number
SG2011036902A
Other languages
English (en)
Inventor
Matthew D Gieselman
Adam J Preston
Original Assignee
Lubrizol Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lubrizol Corp filed Critical Lubrizol Corp
Publication of SG171382A1 publication Critical patent/SG171382A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/52—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of 30 or more atoms
    • C10M133/54—Amines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/52—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of 30 or more atoms
    • C10M133/56—Amides; Imides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/52—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of 30 or more atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/022—Ethene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
    • C10M2215/28—Amides; Imides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/043—Mannich bases
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/04—Detergent property or dispersant property
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/04—Detergent property or dispersant property
    • C10N2030/041—Soot induced viscosity control
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
SG2011036902A 2008-11-26 2009-11-23 Lubricating composition containing a polymer functionalised with a carboxylic acid and an aromatic polyamine SG171382A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11801208P 2008-11-26 2008-11-26
PCT/US2009/065452 WO2010062842A1 (en) 2008-11-26 2009-11-23 Lubricating composition containing a polymer functionalised with a carboxylic acid and an aromatic polyamine

Publications (1)

Publication Number Publication Date
SG171382A1 true SG171382A1 (en) 2011-07-28

Family

ID=42026410

Family Applications (1)

Application Number Title Priority Date Filing Date
SG2011036902A SG171382A1 (en) 2008-11-26 2009-11-23 Lubricating composition containing a polymer functionalised with a carboxylic acid and an aromatic polyamine

Country Status (10)

Country Link
US (1) US8557753B2 (enExample)
EP (1) EP2366004B1 (enExample)
JP (1) JP5459875B2 (enExample)
KR (1) KR101679091B1 (enExample)
CN (1) CN102292422B (enExample)
AU (1) AU2009319888A1 (enExample)
BR (1) BRPI0920904B1 (enExample)
CA (1) CA2744695A1 (enExample)
SG (1) SG171382A1 (enExample)
WO (1) WO2010062842A1 (enExample)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2745759A1 (en) 2008-12-09 2010-07-08 The Lubrizol Corporation Method of operating an engine using an ashless consumable lubricant
WO2010099136A1 (en) * 2009-02-26 2010-09-02 The Lubrizol Corporation Lubricating compositions containing the reaction product of an aromatic amine and a carboxylic functionalised polymer and dispersant
KR101858681B1 (ko) * 2010-05-20 2018-05-16 루브리졸 어드밴스드 머티어리얼스, 인코포레이티드 분산제 조성물
JP2013526647A (ja) 2010-05-20 2013-06-24 ザ ルブリゾル コーポレイション 分散剤を含む潤滑組成物
SG185622A1 (en) * 2010-05-20 2012-12-28 Lubrizol Corp Low ash lubricants with improved seal and corrosion performance
EP2706104B1 (en) 2010-05-20 2018-09-05 The Lubrizol Corporation Lubricating composition containing a dispersant
CN103038323B (zh) * 2010-06-02 2015-09-16 路博润公司 含胺官能化添加剂的润滑组合物
SG2014011829A (en) * 2010-08-23 2014-04-28 Lubrizol Corp Lubricants containing aromatic dispersants and titanium
US20140057818A1 (en) 2010-12-21 2014-02-27 The Lubrizol Corporation Lubricating Composition Containing an Antiwear Agent
US10190069B2 (en) 2011-03-10 2019-01-29 The Lubrizol Corporation Lubricating composition containing a thiocarbamate compound
US9506006B2 (en) 2011-06-21 2016-11-29 The Lubrizol Corporation Lubricating compositions containing salts of hydrocarbyl substituted acylating agents
CA2842669A1 (en) 2011-07-21 2013-01-24 The Lubrizol Corporation Overbased friction modifiers and methods of use thereof
BR112014001289A2 (pt) 2011-07-21 2017-01-10 Lubrizol Corp pirrolidinonas carboxílicas e métodos de uso das mesmas
CN104204167B (zh) 2012-04-11 2016-08-31 路博润公司 衍生自羟基脂肪酸的分散剂和聚亚烷基二醇分散剂
EP2836576B1 (en) 2012-04-11 2018-12-19 The Lubrizol Corporation Hydroxyl terminated polyether dispersants
AU2013302711A1 (en) * 2012-08-14 2015-03-05 Basf Se Polymer for lubricant compositions and method of forming the same
US9695377B2 (en) 2012-12-07 2017-07-04 The Lubrizol Corporation Pyran dispersants
WO2014143721A1 (en) 2013-03-15 2014-09-18 Castrol Limited Multiple function dispersant viscosity index improver
EP3116980B1 (en) 2014-03-12 2023-04-26 The Lubrizol Corporation Method of lubricating an internal combustion engine
US20170073613A1 (en) 2014-03-12 2017-03-16 The Lubrizol Corporation Method of lubricating an internal combustion engine
EP3134496B1 (en) 2014-04-25 2021-03-10 The Lubrizol Corporation Multigrade lubricating compositions
KR102586697B1 (ko) 2014-11-12 2023-10-10 더루우브리졸코오포레이션 윤활제 용도의 혼합 인 에스테르
CA2969679A1 (en) 2014-12-03 2016-06-09 The Lubrizol Corporation Lubricating composition containing an oxyalkylated aromatic polyol compound
WO2016099490A1 (en) 2014-12-17 2016-06-23 The Lubrizol Corporation Lubricating composition for lead and copper corrosion inhibition
JP6727221B2 (ja) 2015-02-26 2020-07-22 ザ ルブリゾル コーポレイションＴｈｅ Ｌｕｂｒｉｚｏｌ Ｃｏｒｐｏｒａｔｉｏｎ 芳香族清浄剤およびその潤滑組成物
CN105985460B (zh) * 2015-02-27 2018-10-16 中国石油天然气股份有限公司 高分子量无灰分散剂的制备方法和应用
CN105985827B (zh) * 2015-02-27 2018-09-04 中国石油天然气股份有限公司 具有烟炱分散性能的无灰分散剂的制备方法和应用
EP3268454B1 (en) 2015-03-10 2023-10-04 The Lubrizol Corporation Lubricating compositions comprising an anti-wear/friction modifying agent
EP4513026A3 (en) 2015-03-25 2025-05-07 The Lubrizol Corporation Use of lubricant compositions for direct injection engines
CA2995757C (en) 2015-08-20 2023-10-03 The Lubrizol Corporation Azole derivatives as lubricating additives
WO2017083243A1 (en) 2015-11-11 2017-05-18 The Lubrizol Corporation Lubricating composition comprising thioether-substituted phenolic compound
US10597599B2 (en) * 2015-12-18 2020-03-24 The Lubrizol Corporation Nitrogen-functionalized olefin polymers for engine lubricants
EP3440165B1 (en) 2016-04-07 2024-12-18 The Lubrizol Corporation Mercaptoazole derivatives as lubricating additives
CN109496228B (zh) * 2016-05-24 2021-11-05 路博润公司 用于润滑组合物的密封溶胀剂
WO2017205270A1 (en) 2016-05-24 2017-11-30 The Lubrizol Corporation Seal swell agents for lubricating compositions
EP3464525B1 (en) 2016-05-24 2020-04-01 The Lubrizol Corporation Seal swell agents for lubricating compositions
EP3255129B1 (en) 2016-06-06 2024-01-24 The Lubrizol Corporation Thiol-carboxylic adducts as lubricating additives
US20180037841A1 (en) * 2016-08-03 2018-02-08 Exxonmobil Research And Engineering Company Lubricating engine oil for improved wear protection and fuel efficiency
EP3516021B1 (en) 2016-09-21 2022-04-06 The Lubrizol Corporation Polyacrylate antifoam components with improved thermal stability
US20200017794A1 (en) 2016-09-21 2020-01-16 The Lubrizol Corporation Fluorinated polyacrylate antifoam components for lubricating compositions
EP3559177A1 (en) 2016-12-22 2019-10-30 The Lubrizol Corporation Fluorinated polyacrylate antifoam components for lubricating compositions
CN108730770A (zh) 2017-04-13 2018-11-02 通用电气公司 用于油的防蜡剂以及用防蜡剂来减少油产生蜡沉积的方法
US10815446B2 (en) 2017-05-19 2020-10-27 Chevron Oronite Company Llc Dispersants, method of making, and using same
CA3069970A1 (en) 2017-07-17 2019-01-24 The Lubrizol Corporation Low dispersant lubricant composition
US11674106B2 (en) 2017-07-17 2023-06-13 The Lubrizol Corporation Low zinc lubricant composition
WO2019103808A1 (en) 2017-11-22 2019-05-31 Exxonmobil Research And Engineering Company Lubricating oil compositions with oxidative stability in diesel engines
CN111356756A (zh) 2017-11-28 2020-06-30 路博润公司 用于高效发动机的润滑剂组合物
WO2019108723A1 (en) * 2017-11-30 2019-06-06 The Lubrizol Corporation Hindered amine terminated succinimide dispersants and lubricating compositions containing same
US10822569B2 (en) * 2018-02-15 2020-11-03 Afton Chemical Corporation Grafted polymer with soot handling properties
CN112105710B (zh) 2018-03-21 2022-08-30 路博润公司 超低粘度(＜5 cst)成品流体中的氟化聚丙烯酸酯消泡剂
CA3104063A1 (en) 2018-06-22 2019-12-26 The Lubrizol Corporation Lubricating compositions for heavy duty diesel engines
WO2020023430A1 (en) 2018-07-23 2020-01-30 Exxonmobil Research And Engineering Company Lubricating oil compositions with oxidative stability in diesel engines using biodiesel fuel
EP3894526A1 (en) 2018-12-10 2021-10-20 The Lubrizol Corporation Lubricating compositions having a mixed dispersant additive package
CN114096648A (zh) 2019-06-24 2022-02-25 路博润公司 性能添加剂的连续声混合和包含性能添加剂的组合物
JP2022551960A (ja) 2019-10-15 2022-12-14 ザ ルブリゾル コーポレイション 燃費の優れた潤滑組成物
US12098345B2 (en) 2019-12-18 2024-09-24 The Lubrizol Corporation Polymeric surfactant compound
CN114057917B (zh) * 2020-08-04 2024-03-26 中国石油天然气股份有限公司 一种后处理无灰分散剂及其制备方法
US12152216B2 (en) 2020-12-23 2024-11-26 The Lubrizol Corp tion Benzazepine compounds as antioxidants for lubricant compositions
CA3210842A1 (en) * 2021-03-02 2022-09-09 Patricia Standen Thermally stable, low traction coefficient lubricant
CA3212981A1 (en) 2021-04-01 2022-10-06 Paul R. VINCENT Zinc free lubricating compositions and methods of using the same
CA3227404A1 (en) 2021-07-29 2023-02-02 Zachary L. RODGERS 1,4-benzoxazine compounds and lubricant compositions containing the same
EP4388064B1 (en) 2021-08-19 2025-12-10 The Lubrizol Corporation Lubricating compositions containing friction modifiers with improved frictional properties
CA3242907A1 (en) * 2022-01-04 2023-07-13 The Lubrizol Corporation LUBRICANT COMPOUNDS AND COMPOSITIONS CONTAINING THEIR
CA3260830A1 (en) 2022-06-27 2024-01-04 The Lubrizol Corporation LUBRICANT COMPOSITION AND LUBRICATION METHOD FOR AN INTERNAL COMBUSTION ENGINE
WO2025090554A1 (en) 2023-10-26 2025-05-01 The Lubrizol Corporation Shear stable aluminum complex grease

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL206960A (enExample) 1953-06-10
DE2551256A1 (de) 1974-11-29 1976-08-12 Lubrizol Corp Schwefelhaltige mannich-kondensationsprodukte und diese verbindungen enthaltende fluessige brenn- und treibstoffe und schmiermittel
US4234435A (en) 1979-02-23 1980-11-18 The Lubrizol Corporation Novel carboxylic acid acylating agents, derivatives thereof, concentrate and lubricant compositions containing the same, and processes for their preparation
US4863623A (en) 1988-03-24 1989-09-05 Texaco Inc. Novel VI improver, dispersant, and anti-oxidant additive and lubricating oil composition containing same
US5182041A (en) 1989-05-01 1993-01-26 Texaco Inc. Dispersant - anti-oxidant additive and lubricating oil composition containing same
US5139688A (en) * 1990-08-06 1992-08-18 Texaco, Inc. Dispersant and antioxidant additive and lubricating oil composition containing same
US5356999A (en) 1990-10-29 1994-10-18 Texaco Inc. Multifunctional viscosity index improvers based on polymers containing sulfonamides
US6117825A (en) 1992-05-07 2000-09-12 Ethyl Corporation Polyisobutylene succinimide and ethylene-propylene succinimide synergistic additives for lubricating oils compositions
US5264140A (en) 1992-06-01 1993-11-23 Texaco Inc. Antioxidant-dispersant VI improver additive and lubricating oil composition containing same
US5409623A (en) 1992-09-02 1995-04-25 Texaco Inc. Functionalized graft co-polymer as a viscosity and index improver, dispersant, and anti-oxidant additive and lubricating oil composition containing same
US6107258A (en) * 1997-10-15 2000-08-22 Ethyl Corporation Functionalized olefin copolymer additives
US6107257A (en) 1997-12-09 2000-08-22 Ethyl Corporation Highly grafted, multi-functional olefin copolymer VI modifiers
US7361629B2 (en) * 2004-03-10 2008-04-22 Afton Chemical Corporation Additives for lubricants and fuels
JP5070049B2 (ja) 2004-07-30 2012-11-07 ザ ルブリゾル コーポレイション 芳香族アミンを含有する分散剤粘度調整剤
EP1655311A1 (en) * 2004-11-04 2006-05-10 DSM IP Assets B.V. Method for preparing an imidized polymer
WO2006063161A2 (en) * 2004-12-09 2006-06-15 The Lubrizol Corporation Process of preparation of an additive and its use
JP5437259B2 (ja) 2007-11-13 2014-03-12 ザ ルブリゾル コーポレイション ポリマーを含む潤滑組成物

Also Published As

Publication number Publication date
JP2012509962A (ja) 2012-04-26
BRPI0920904B1 (pt) 2020-01-07
CA2744695A1 (en) 2010-06-03
BRPI0920904A2 (pt) 2018-06-26
EP2366004A1 (en) 2011-09-21
EP2366004B1 (en) 2019-08-07
KR101679091B1 (ko) 2016-11-23
AU2009319888A1 (en) 2010-06-03
WO2010062842A1 (en) 2010-06-03
CN102292422B (zh) 2014-12-24
CN102292422A (zh) 2011-12-21
KR20110099258A (ko) 2011-09-07
US8557753B2 (en) 2013-10-15
JP5459875B2 (ja) 2014-04-02
US20110306528A1 (en) 2011-12-15

Similar Documents

Publication Publication Date Title
US8557753B2 (en) Lubricating composition containing a functionalized carboxylic polymer
US8637437B2 (en) Lubricating composition containing a polymer
JP2012509962A5 (enExample)
JP5735434B2 (ja) 芳香族アミンおよびカルボン酸官能化ポリマーの反応生成物ならびに分散剤を含有する潤滑組成物
US7960320B2 (en) Dispersant viscosity modifiers containing aromatic amines
US7750089B2 (en) Dispersant viscosity modifiers based on diene-containing polymers
US8324139B2 (en) Mannich post-treatment of PIBSA dispersants for improved dispersion of EGR soot
US8912133B2 (en) Lubricating composition containing a polymer
US20100130393A1 (en) Ester Dispersant Composition for Soot Handling in EGR Engines