BR112018013044A2 - composição de óleo lubrificante para motores de combustão interna - Google Patents

composição de óleo lubrificante para motores de combustão interna

Info

Publication number
BR112018013044A2
BR112018013044A2 BR112018013044A BR112018013044A BR112018013044A2 BR 112018013044 A2 BR112018013044 A2 BR 112018013044A2 BR 112018013044 A BR112018013044 A BR 112018013044A BR 112018013044 A BR112018013044 A BR 112018013044A BR 112018013044 A2 BR112018013044 A2 BR 112018013044A2
Authority
BR
Brazil
Prior art keywords
internal combustion
lubricating oil
combustion engines
oil composition
polyalkylene glycol
Prior art date
Application number
BR112018013044A
Other languages
English (en)
Inventor
Kobayashi Izumi
Oohara Kenji
Hanyuda Kiyoshi
Kamata Kumiko
Original Assignee
Shell Int Research
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 Shell Int Research filed Critical Shell Int Research
Publication of BR112018013044A2 publication Critical patent/BR112018013044A2/pt

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04Mixtures of base-materials and additives
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M107/00Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/20Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
    • C10M107/22Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M107/24Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol, aldehyde, ketonic, ether, ketal or acetal radical
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M107/00Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/46Lubricating compositions characterised by the base-material being a macromolecular compound containing sulfur
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M135/00Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/20Thiols; Sulfides; Polysulfides
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M161/00Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M171/00Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C10M171/04Specified molecular weight or molecular weight distribution
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102Aliphatic fractions
    • C10M2203/1025Aliphatic fractions used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/17Fisher Tropsch reaction products
    • C10M2205/173Fisher Tropsch reaction products used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/04Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol or ester thereof; bound to an aldehyde, ketonic, ether, ketal or acetal radical
    • C10M2209/043Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol or ester thereof; bound to an aldehyde, ketonic, ether, ketal or acetal radical used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08Macromolecular 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
    • C10M2209/084Acrylate; Methacrylate
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/105Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/107Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/06Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066Thiocarbamic type compounds
    • C10M2219/068Thiocarbamate metal salts
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08Thiols; Sulfides; Polysulfides; Mercaptals
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04Phosphate esters
    • C10M2223/045Metal containing thio derivatives
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01Physico-chemical properties
    • C10N2020/04Molecular weight; Molecular weight distribution
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/25Internal-combustion engines
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2080/00Special pretreatment of the material to be lubricated, e.g. phosphatising or chromatising of a metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Lubricants (AREA)

Abstract

trata-se de uma composição de óleo lubrificante para motores de combus-tão interna que pode realizar baixo atrito tanto em motores de combustão interna equipados com um dlc quanto motores de combustão interna não equipados com um dlc. [solução] uma composição de óleo lubrificante para motores de combustão interna, sendo que composição de óleo lubrificante para motores de combustão in-terna é caracterizada pelo fato de que é uma composição obtida por meio de mescla de um ditiocarbamato de molibdênio (modtc) e um polialquilenoglicol (pag) em um óleo-base, o peso molecular por média ponderada do polialquilenoglicol é 2.750 a 4.500 e o teor do polialquilenoglicol é no mínimo 0,05% em massa e menor que 10% em massa em relação à massa total da composição.
BR112018013044A 2015-12-24 2016-12-22 composição de óleo lubrificante para motores de combustão interna BR112018013044A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015252572A JP6605948B2 (ja) 2015-12-24 2015-12-24 内燃機関用潤滑油組成物
PCT/EP2016/082402 WO2017109084A1 (en) 2015-12-24 2016-12-22 Lubricating oil composition for internal combustion engines

Publications (1)

Publication Number Publication Date
BR112018013044A2 true BR112018013044A2 (pt) 2018-12-04

Family

ID=57708585

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018013044A BR112018013044A2 (pt) 2015-12-24 2016-12-22 composição de óleo lubrificante para motores de combustão interna

Country Status (7)

Country Link
US (1) US20190002793A1 (pt)
EP (1) EP3394227B1 (pt)
JP (1) JP6605948B2 (pt)
CN (1) CN108431186A (pt)
BR (1) BR112018013044A2 (pt)
RU (1) RU2729063C2 (pt)
WO (1) WO2017109084A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11186795B2 (en) 2017-12-28 2021-11-30 Nissan Motor Co., Ltd. Low friction sliding mechanism

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6022835A (en) * 1997-10-22 2000-02-08 Shell Oil Company Lubricating composition
CN100587045C (zh) * 2003-08-06 2010-02-03 日产自动车株式会社 低摩擦滑动机构、低摩擦剂组合物以及减小摩擦的方法
JP4824406B2 (ja) * 2003-08-06 2011-11-30 Jx日鉱日石エネルギー株式会社 Dlc接触面を有するシステム、該システムの潤滑方法及び該システム用潤滑油
JP5203590B2 (ja) * 2006-10-27 2013-06-05 出光興産株式会社 潤滑油組成物
EP2132082B1 (en) * 2007-03-06 2012-10-24 R.T. Vanderbilt Company, Inc. Molybdenum compounds and lubricant composition with them
US8563486B2 (en) * 2008-10-07 2013-10-22 Jx Nippon Oil & Energy Corporation Lubricant composition and method for producing same
JP2013014673A (ja) * 2011-07-01 2013-01-24 Idemitsu Kosan Co Ltd 圧縮型冷凍機用潤滑油組成物
WO2013074498A1 (en) * 2011-11-14 2013-05-23 Exxonmobil Research And Engineering Company Method for improving engine fuel efficiency
FR2990214B1 (fr) * 2012-05-04 2015-04-10 Total Raffinage Marketing Lubrifiant moteur pour vehicules a motorisation hybride ou micro-hybride
FR2990213B1 (fr) * 2012-05-04 2015-04-24 Total Raffinage Marketing Composition lubrifiante pour moteur
DK2986694T3 (da) * 2013-04-17 2020-03-30 Lubrizol Corp Fremgangsmåde til smøring af cylinder og stempel i en intern to-taktsforbrændingsmotor
CN105934502B (zh) * 2014-01-28 2020-03-13 巴斯夫欧洲公司 烷氧基化聚乙二醇在润滑油组合物中的用途
CN106414686A (zh) * 2014-06-19 2017-02-15 国际壳牌研究有限公司 润滑组合物

Also Published As

Publication number Publication date
US20190002793A1 (en) 2019-01-03
RU2729063C2 (ru) 2020-08-04
EP3394227B1 (en) 2019-10-09
JP2017115040A (ja) 2017-06-29
CN108431186A (zh) 2018-08-21
EP3394227A1 (en) 2018-10-31
RU2018126972A (ru) 2020-01-24
RU2018126972A3 (pt) 2020-02-27
JP6605948B2 (ja) 2019-11-13
WO2017109084A1 (en) 2017-06-29

Similar Documents

Publication Publication Date Title
BR112018000657A2 (pt) composição de óleo lubrificante, e, método para reduzir eventos de pré-ignição a baixa velocidade.
BR112018000615A2 (pt) composição de óleo lubrificante, e, método para reduzir eventos de pré-ignição de baixa velocidade.
BR112012023571A2 (pt) composição de óleo lubrificante para motores de combustão interna
AR092004A1 (es) Composicion lubricante para motor
AR092003A1 (es) Composicion lubricante para motor
BR112014031498A2 (pt) composição lubrificante, e, uso de uma composição lubrificante
BR112016006110A2 (pt) composições lubrificantes para motores de injeção direta
BR112019025431A2 (pt) Composto compreendendo funcionalidade de poliamina, ácida e de boro e seu uso como aditivo lubrificante
BRPI0513049A (pt) composição de óleo lubrificante para motores de combustão interna, método para lubrificar um motor de combustão interna, e, uso de uma composição de óleo lubrificante
BR112014007350A2 (pt) composição lubrificante para motor marítimo
BR112017001845A2 (pt) composição de lubrificação e usos de pelo menos uma composição de lubrificação
BR112013006087A2 (pt) lubrificantes de transportador incluindo emulsões e métodos para empregá-los
WO2012163935A3 (en) Liquid fuel compositions
BR112017006340A2 (pt) composição de óleo de lubrificação para transmissões automotivas, e, método para fabricação de uma coposição de óleo de lubrificação para transmissões automotivas.
BR112015020832A2 (pt) composição de sulfonato de olefina interna, e, método para tratamento de uma formação contendo petróleo bruto
MX2016001860A (es) Composicion de aceite lubricante para motor de combustion interna.
BR112016006956A2 (pt) método de controle de artrito
AR085971A1 (es) Aditivos para aceite lubricante de ditiocarbamato de zinc
BR112015025946A2 (pt) lubrificante, composição de lubrificante, método para usar a composição de lubrificante, compressor, sistema de refrigeração
BR112019006244A2 (pt) composição lubrificante e uso de uma composição lubrificante
BR112016021008A2 (pt) Modificador de viscosidade para óleos lubrificantes , composição de aditivo para óleos lubrificantes , e composição de óleo lubrificante
BR112018013044A2 (pt) composição de óleo lubrificante para motores de combustão interna
BR112022001823A2 (pt) Composição de graxa, uso de uma composição de graxa, e, juntas de velocidade constante
AR090936A1 (es) Motor lubricante para vehiculos de motor hibrido o microhibrido
BR112014013638A2 (pt) composição de óleo lubrificante, e, uso de uma composição de óleo lubrificante

Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time