JP6720405B2 - エンジンオイル配合物のノアック蒸発損失を改善するための櫛形ポリマー - Google Patents

エンジンオイル配合物のノアック蒸発損失を改善するための櫛形ポリマー Download PDF

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JP6720405B2
JP6720405B2 JP2019511712A JP2019511712A JP6720405B2 JP 6720405 B2 JP6720405 B2 JP 6720405B2 JP 2019511712 A JP2019511712 A JP 2019511712A JP 2019511712 A JP2019511712 A JP 2019511712A JP 6720405 B2 JP6720405 B2 JP 6720405B2
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acrylate
meth
mass
weight
oil
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JP2019532134A (ja
JP2019532134A5 (enExample
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シェラー カトリン
シェラー カトリン
マイアー シュテファン
マイアー シュテファン
リッパート サラ
リッパート サラ
シモセク クラウス
シモセク クラウス
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Evonik Operations GmbH
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Evonik Operations GmbH
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    • 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
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/62—Monocarboxylic acids having ten or more carbon atoms; Derivatives thereof
    • C08F220/68—Esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
    • C08F290/04—Polymers provided for in subclasses C08C or C08F
    • C08F290/048—Polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
    • C08F290/12—Polymers provided for in subclasses C08C or C08F
    • C08F290/128—Polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
    • 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
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/32—Esters
    • C10M105/36—Esters of polycarboxylic acids
    • 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
    • C10M169/00—Lubricating 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
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions used as base material
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions used as base material
    • 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/17—Fisher Tropsch reaction products
    • C10M2205/173—Fisher Tropsch reaction products used as base material
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
    • C10M2207/2825—Esters of (cyclo)aliphatic oolycarboxylic acids used as base material
    • 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
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/019—Shear stability
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/04—Molecular weight; Molecular weight distribution
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/065—Saturated Compounds
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/071—Branched chain compounds
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/085—Non-volatile compounds
    • 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
    • C10N2030/02—Pour-point; Viscosity index
    • 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
    • C10N2030/08—Resistance to extreme temperature
    • 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
    • C10N2030/68—Shear stability
    • 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
    • C10N2030/74—Noack Volatility
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Emergency Medicine (AREA)
  • Lubricants (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Graft Or Block Polymers (AREA)
JP2019511712A 2016-08-31 2017-08-28 エンジンオイル配合物のノアック蒸発損失を改善するための櫛形ポリマー Active JP6720405B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP16186495 2016-08-31
EP16186495.4 2016-08-31
PCT/EP2017/071498 WO2018041755A1 (en) 2016-08-31 2017-08-28 Comb polymers for improving noack evaporation loss of engine oil formulations

Publications (3)

Publication Number Publication Date
JP2019532134A JP2019532134A (ja) 2019-11-07
JP2019532134A5 JP2019532134A5 (enExample) 2020-02-06
JP6720405B2 true JP6720405B2 (ja) 2020-07-08

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JP2019511712A Active JP6720405B2 (ja) 2016-08-31 2017-08-28 エンジンオイル配合物のノアック蒸発損失を改善するための櫛形ポリマー

Country Status (12)

Country Link
US (2) US10633610B2 (enExample)
EP (1) EP3507350B1 (enExample)
JP (1) JP6720405B2 (enExample)
KR (1) KR102303476B1 (enExample)
CN (1) CN109642180B (enExample)
BR (1) BR112019004224A2 (enExample)
CA (1) CA3034737A1 (enExample)
ES (1) ES2802278T3 (enExample)
MX (1) MX374432B (enExample)
RU (1) RU2019108584A (enExample)
SG (1) SG11201901623TA (enExample)
WO (1) WO2018041755A1 (enExample)

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US10982167B2 (en) 2016-09-21 2021-04-20 Nippon Shokubai Co., Ltd. Viscosity index improver and lubricating oil composition
RU2019121715A (ru) * 2016-12-19 2021-01-19 Эвоник Оперейшнс Гмбх Комопозиция смазочного масла, содержащая диспергирующие гребенчатые полимеры
JP6936041B2 (ja) * 2017-04-25 2021-09-15 シェルルブリカンツジャパン株式会社 内燃機関用潤滑油組成物
BR112020000774A2 (pt) * 2017-07-14 2020-07-14 Evonik Operations Gmbh polímero em pente à base de polialquil(met)acrilato enxertado, copolímero à base de polialquil(met)acrilato e seu uso, composição aditiva, método de redução do coeficiente de atrito de uma composição de óleo lubrificante, composição de óleo lubrificante e método de redução de atrito em um veículo automotivo
JP7098623B2 (ja) * 2017-08-10 2022-07-11 出光興産株式会社 潤滑油組成物、内燃機関、及び内燃機関の潤滑方法
EP3498808B1 (en) * 2017-12-13 2020-05-13 Evonik Operations GmbH Viscosity index improver with improved shear-resistance and solubility after shear
CN111630141B (zh) * 2018-01-23 2022-07-19 赢创运营有限公司 聚合物-无机纳米粒子组合物、其制造方法和其作为润滑剂添加剂的用途
KR102320586B1 (ko) 2018-06-27 2021-11-03 한국과학기술원 다시각적 모델링을 이용한 인공지능 로봇 시뮬레이터의 제어 방법 및 장치
JP2020105347A (ja) * 2018-12-27 2020-07-09 Ｅｍｇルブリカンツ合同会社 潤滑油組成物
KR102883633B1 (ko) 2019-03-20 2025-11-11 에보니크 오퍼레이션즈 게엠베하 연비, 분산력 및 침착 성능을 개선시키기 위한 폴리알킬(메트)아크릴레이트
CN114127223B (zh) * 2019-07-17 2024-11-19 赢创运营有限公司 纳米粒子组合物在电池或其它电气设备系统中用作传热流体的用途
EP3778839B1 (en) * 2019-08-13 2021-08-04 Evonik Operations GmbH Viscosity index improver with improved shear-resistance
PL4073210T3 (pl) * 2019-12-12 2025-02-10 Evonik Operations Gmbh Płyny na bazie poliakrylanu o wysokiej lepkości
US20210179965A1 (en) * 2019-12-16 2021-06-17 Infineum International Limited High Viscosity Index Comb Copolymer Viscosity Modifiers and Methods of Modifying Lubricant Viscosity Using Same
US11365273B2 (en) * 2019-12-16 2022-06-21 Infineum International Limited High viscosity index comb polymer viscosity modifiers and methods of modifying lubricant viscosity using same
US11384311B2 (en) * 2019-12-16 2022-07-12 Infineum International Limited High viscosity index comb polymer viscosity modifiers and methods of modifying lubricant viscosity using same
US20210179960A1 (en) * 2019-12-16 2021-06-17 Infineum International Limited High Viscosity Index Comb Copolymer Viscosity Modifiers and Methods of Modify Lubricant Viscosity Using Same
JP7454947B2 (ja) * 2020-01-17 2024-03-25 エクソンモービル テクノロジー アンド エンジニアリング カンパニー 潤滑油組成物
KR20220159357A (ko) * 2020-03-25 2022-12-02 미쯔비시 케미컬 주식회사 중합체 조성물, 윤활유 첨가제, 점도 지수 향상제, 윤활유 조성물, 중합체 조성물의 제조 방법, 및 매크로 모노머의 제조 방법
FR3108621B1 (fr) * 2020-03-25 2022-07-22 Total Marketing Services Utilisation de polymère d’alkyle métacrylate pour réduire les émissions de particules
JP2023523755A (ja) * 2020-04-30 2023-06-07 エボニック オペレーションズ ゲーエムベーハー 分散剤ポリアルキル（メタ）アクリレートポリマーを製造する方法
KR20230004805A (ko) * 2020-04-30 2023-01-06 에보니크 오퍼레이션즈 게엠베하 폴리알킬 (메트)아크릴레이트 중합체의 제조 방법
US12116546B2 (en) * 2020-07-03 2024-10-15 Evonik Operations Gmbh High viscosity base fluids based on oil compatible polyesters
TWI888612B (zh) 2020-08-03 2025-07-01 荷蘭商蜆殼國際研究公司 整合乙烯生產方法
EP4208526B1 (en) * 2020-09-01 2024-08-14 Shell Internationale Research Maatschappij B.V. Engine oil composition
US12258534B2 (en) 2020-09-14 2025-03-25 Sanyo Chemical Industries, Ltd. Viscosity index improver and lubricating oil composition
CN116848163B (zh) * 2020-09-14 2025-03-04 三洋化成工业株式会社 粘度指数改进剂和润滑油组合物
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