DE3861217D1 - Bestimmtes c14-carboxylat/vinylester-polymer enthaltende gemische zur verbesserung des schmieroelfliessverhaltens. - Google Patents

Bestimmtes c14-carboxylat/vinylester-polymer enthaltende gemische zur verbesserung des schmieroelfliessverhaltens.

Info

Publication number
DE3861217D1
DE3861217D1 DE8888304662T DE3861217T DE3861217D1 DE 3861217 D1 DE3861217 D1 DE 3861217D1 DE 8888304662 T DE8888304662 T DE 8888304662T DE 3861217 T DE3861217 T DE 3861217T DE 3861217 D1 DE3861217 D1 DE 3861217D1
Authority
DE
Germany
Prior art keywords
carboxylate
mixtures containing
flow behavior
lubricant flow
improve lubricant
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE8888304662T
Other languages
English (en)
Inventor
Albert Rossi
Robert Dryden Tack
Kenneth Lewtas
Jose Alves
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Chemical Patents Inc
Original Assignee
Exxon Chemical Patents Inc
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 Exxon Chemical Patents Inc filed Critical Exxon Chemical Patents Inc
Application granted granted Critical
Publication of DE3861217D1 publication Critical patent/DE3861217D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/10—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
    • C10M145/16—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate polycarboxylic
    • 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
    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
    • 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
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/06—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an acyloxy radical of a saturated carboxylic or carbonic acid
    • C10M145/08—Vinyl esters of a saturated carboxylic or carbonic acid
    • 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
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/10—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
    • C10M145/12—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate monocarboxylic
    • C10M145/14—Acrylate; Methacrylate
    • 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
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/06—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an acyloxy radical of saturated carboxylic or carbonic acid
    • C10M2209/062—Vinyl esters of saturated carboxylic or carbonic acids, e.g. vinyl acetate
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/084—Acrylate; Methacrylate
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/086—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type polycarboxylic, e.g. maleic acid
    • 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
    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
DE8888304662T 1987-05-22 1988-05-23 Bestimmtes c14-carboxylat/vinylester-polymer enthaltende gemische zur verbesserung des schmieroelfliessverhaltens. Expired - Lifetime DE3861217D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/053,698 US4839074A (en) 1987-05-22 1987-05-22 Specified C14 -carboxylate/vinyl ester polymer-containing compositions for lubricating oil flow improvement

Publications (1)

Publication Number Publication Date
DE3861217D1 true DE3861217D1 (de) 1991-01-17

Family

ID=21985953

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888304662T Expired - Lifetime DE3861217D1 (de) 1987-05-22 1988-05-23 Bestimmtes c14-carboxylat/vinylester-polymer enthaltende gemische zur verbesserung des schmieroelfliessverhaltens.

Country Status (9)

Country Link
US (1) US4839074A (de)
EP (1) EP0296714B1 (de)
JP (1) JP2630987B2 (de)
AR (1) AR246303A1 (de)
AU (1) AU598992B2 (de)
BR (1) BR8802474A (de)
CA (1) CA1331662C (de)
DE (1) DE3861217D1 (de)
DK (1) DK279188A (de)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8720606D0 (en) * 1987-09-02 1987-10-07 Exxon Chemical Patents Inc Flow improvers & cloud point depressants
US4963279A (en) * 1989-02-28 1990-10-16 Exxon Chemical Patents Inc. C14-carboxylate polymer and viscosity index improver containing oleaginous compositions
US5112510A (en) * 1989-02-28 1992-05-12 Exxon Chemical Patents Inc. Carboxylate polymer and viscosity index improver containing oleaginous compositions
CA2008938C (en) * 1989-02-28 1998-12-22 Albert Rossi C14-carboxylate polymer and viscosity index improver containing oleaginous compositions
JP2805934B2 (ja) * 1989-12-29 1998-09-30 日本油脂株式会社 塑性加工用有機潤滑皮膜剤組成物およびこれを被覆した金属薄板
US6174843B1 (en) * 1990-08-13 2001-01-16 Nalco Chemical Company Composition and method for lubricant wax dispersant and pour point improver
US5449313A (en) * 1992-04-14 1995-09-12 Byelocorp Scientific, Inc. Magnetorheological polishing devices and methods
US6503414B1 (en) 1992-04-14 2003-01-07 Byelocorp Scientific, Inc. Magnetorheological polishing devices and methods
US5304315A (en) * 1992-04-15 1994-04-19 Exxon Chemical Patents Inc. Prevention of gel formation in two-cycle oils
WO1994004313A1 (en) * 1992-08-14 1994-03-03 Byelocorp Scientific, Inc. Magnetorheological polishing devices and methods
US5353839A (en) * 1992-11-06 1994-10-11 Byelocorp Scientific, Inc. Magnetorheological valve and devices incorporating magnetorheological elements
US5427702A (en) * 1992-12-11 1995-06-27 Exxon Chemical Patents Inc. Mixed ethylene alpha olefin copolymer multifunctional viscosity modifiers useful in lube oil compositions
US5554310A (en) 1992-12-17 1996-09-10 Exxon Chemical Patents Inc. Trisubstituted unsaturated polymers
IL107927A0 (en) 1992-12-17 1994-04-12 Exxon Chemical Patents Inc Oil soluble ethylene/1-butene copolymers and lubricating oils containing the same
KR100335219B1 (ko) * 1993-06-04 2002-11-07 바이엘로코프 사이언티픽, 인코퍼레이티드 자기유동학적유체및이를이용한시편표면완성방법,장치및광택방법
GB9403660D0 (en) * 1994-02-25 1994-04-13 Exxon Chemical Patents Inc Oil compositions
US5460739A (en) 1994-09-09 1995-10-24 Shell Oil Company Star polymer viscosity index improver for oil compositions
US5795212A (en) * 1995-10-16 1998-08-18 Byelocorp Scientific, Inc. Deterministic magnetorheological finishing
US5707943A (en) * 1996-12-16 1998-01-13 The Lubrizol Corporation Mixtures of esterified carboxy-containing interpolymers and lubricants containing them
US5939365A (en) * 1996-12-20 1999-08-17 Exxon Chemical Patents Inc. Lubricant with a higher molecular weight copolymer lube oil flow improver
BR9811959B1 (pt) 1997-08-22 2010-03-09 método para aperfeiçoar a fluidez em baixa temperatura de óleos lubrificantes mediante o uso de misturas de aditivos de polìmeros de alto e baixo peso molecular, composições de óleo lubrificante e concentrado para uso nas referidas composições.
US6100224A (en) * 1997-10-01 2000-08-08 Exxon Chemical Patents Inc Copolymers of ethylene α-olefin macromers and dicarboxylic monomers and derivatives thereof, useful as additives in lubricating oils and in fuels
JP4920817B2 (ja) * 1999-09-20 2012-04-18 三洋化成工業株式会社 脱ろう用助剤
US6475963B1 (en) * 2001-05-01 2002-11-05 Infineum International Ltd. Carboxylate-vinyl ester copolymer blend compositions for lubricating oil flow improvement
CA2552224A1 (en) * 2003-12-31 2005-07-21 Axiom Automotive Technologies Thermally stable, friction, wear and degradation reducing composition, for use in highly stressed power transmission systems
US20090143263A1 (en) * 2007-12-03 2009-06-04 Bloch Ricardo A Lubricant composition comprising a bi-modal side-chain distribution lofi
US9518244B2 (en) * 2007-12-03 2016-12-13 Infineum International Limited Lubricant composition comprising a bi-modal side-chain distribution LOFI
US8452548B2 (en) * 2008-09-12 2013-05-28 Exxonmobil Research And Engineering Company Base oil low temperature property classification model
WO2013062924A2 (en) * 2011-10-27 2013-05-02 The Lubrizol Corporation Lubricating composition containing an esterified polymer
CN104204174B (zh) * 2012-03-29 2016-03-30 吉坤日矿日石能源株式会社 润滑油组合物
US11261398B2 (en) 2016-05-18 2022-03-01 The Lubrizol Corporation Hydraulic fluid composition
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
EP3867337B1 (de) * 2018-10-16 2023-08-02 Basf Se Schmierstoffe mit einem terpolymer aus diester, olefin und acrylat
CN112694929A (zh) * 2019-10-22 2021-04-23 中国石油化工股份有限公司 一种共聚物组合物及其制造方法、复合添加剂及润滑油组合物
CN111909760A (zh) * 2020-07-08 2020-11-10 上海佳士特润滑科技有限公司 一种应用于机动车的润滑油及其制备方法
US11680222B2 (en) * 2020-10-30 2023-06-20 Afton Chemical Corporation Engine oils with low temperature pumpability

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618602A (en) * 1949-12-17 1952-11-18 Standard Oil Dev Co Lubricating composition of low pour point
US2825717A (en) * 1954-05-06 1958-03-04 Exxon Research Engineering Co Dialkyl fumarate-vinyl acetate copolymers
US3250715A (en) * 1964-02-04 1966-05-10 Lubrizol Corp Terpolymer product and lubricating composition containing it
US3814690A (en) * 1972-10-10 1974-06-04 Exxon Research Engineering Co Polymeric pour point depressants of vinyl aromatic and alkyl fumarate
US4146492A (en) * 1976-04-02 1979-03-27 Texaco Inc. Lubricant compositions which exhibit low degree of haze and methods of preparing same
US4088589A (en) * 1976-05-20 1978-05-09 Exxon Research & Engineering Co. Dual pour depressant combination for viscosity index improved waxy multigrade lubricants
US4058371A (en) * 1976-05-25 1977-11-15 Exxon Research & Engineering Co. Polymer combinations useful in distillate hydrocarbon oils to improve cold flow properties
US4240916A (en) * 1976-07-09 1980-12-23 Exxon Research & Engineering Co. Pour point depressant additive for fuels and lubricants
US4211534A (en) * 1978-05-25 1980-07-08 Exxon Research & Engineering Co. Combination of ethylene polymer, polymer having alkyl side chains, and nitrogen containing compound to improve cold flow properties of distillate fuel oils
NL187859C (nl) * 1979-12-13 1992-02-03 Inst Francais Du Petrole Terpolymeren en koolwaterstofoliesamenstellingen, die dergelijke terpolymeren bevatten.
DE3031900C2 (de) * 1980-08-23 1983-06-09 Chemische Fabriek Servo B.V., 7491 Delden Mischpolymerisate aus n-Alkylacrylaten und Maleinsäureanhydrid und ihre Verwendung als Kristallisationsinhibitoren für paraffinhaltige Rohöle
US4284414A (en) * 1980-10-14 1981-08-18 The Lubrizol Corporation Mixed alkyl esters of interpolymers for use in crude oils
US4514314A (en) * 1981-06-02 1985-04-30 Exxon Research And Engineering Co. Oil soluble ester pour point depressant additive for lubricants
US4519932A (en) * 1982-09-20 1985-05-28 National Distillers And Chemical Corporation Low temperature hydraulic fluids based on two centistoke synthetic hydrocarbons
IN168191B (de) * 1984-02-21 1991-02-16 Exxon Research Engineering Co
EP0155807A3 (de) * 1984-03-22 1985-11-27 Exxon Research And Engineering Company Mitteldestillate Zusammensetzungen mit Fliesseigenschaften bei Kälte
US4632769A (en) * 1984-12-07 1986-12-30 Exxon Research & Engineering Co. Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions
CA1275403C (en) * 1985-06-07 1990-10-23 Albert Rossi Lubricating oil composition containing dual additive combination for lowtemperature viscosity improvement

Also Published As

Publication number Publication date
EP0296714A1 (de) 1988-12-28
AR246303A1 (es) 1994-07-29
EP0296714B1 (de) 1990-12-05
AU598992B2 (en) 1990-07-05
CA1331662C (en) 1994-08-23
DK279188D0 (da) 1988-05-20
US4839074A (en) 1989-06-13
JP2630987B2 (ja) 1997-07-16
DK279188A (da) 1989-02-10
BR8802474A (pt) 1988-12-20
JPS6454098A (en) 1989-03-01
AU1648988A (en) 1988-11-24

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