CA3118972A1 - Random copolymers for use as base oils or lubricant additives - Google Patents

Random copolymers for use as base oils or lubricant additives Download PDF

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Publication number
CA3118972A1
CA3118972A1 CA3118972A CA3118972A CA3118972A1 CA 3118972 A1 CA3118972 A1 CA 3118972A1 CA 3118972 A CA3118972 A CA 3118972A CA 3118972 A CA3118972 A CA 3118972A CA 3118972 A1 CA3118972 A1 CA 3118972A1
Authority
CA
Canada
Prior art keywords
meth
mol
acrylate
copolymer
weight
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.)
Pending
Application number
CA3118972A
Other languages
English (en)
French (fr)
Inventor
Holger Pletsch
Emily Clare SCHWEISSINGER
Hanna SPOHR
Sebastian REIMANN
Lars PERA
Marius Weiland
Boris Eisenberg
Dmitriy SHAKHVOROSTOV
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.)
Evonik Operations GmbH
Original Assignee
Evonik Operations GmbH
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 Evonik Operations GmbH filed Critical Evonik Operations GmbH
Publication of CA3118972A1 publication Critical patent/CA3118972A1/en
Pending legal-status Critical Current

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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
    • C10M145/12—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
    • C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F236/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • 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
    • 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
    • C08F220/1812—C12-(meth)acrylate, e.g. lauryl (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
    • C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F236/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C08F236/06—Butadiene
    • 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
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/70—Iron group metals, platinum group metals or compounds thereof
    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/04—Reduction, e.g. hydrogenation
    • 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
    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers 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
    • 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
    • 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
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/10—Copolymer characterised by the proportions of the comonomers expressed as molar percentages
    • 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
    • C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Lubricants (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
CA3118972A 2018-11-13 2019-10-23 Random copolymers for use as base oils or lubricant additives Pending CA3118972A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP18205895.8 2018-11-13
EP18205895 2018-11-13
PCT/EP2019/078857 WO2020099078A1 (en) 2018-11-13 2019-10-23 Random copolymers for use as base oils or lubricant additives

Publications (1)

Publication Number Publication Date
CA3118972A1 true CA3118972A1 (en) 2020-05-22

Family

ID=64308602

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3118972A Pending CA3118972A1 (en) 2018-11-13 2019-10-23 Random copolymers for use as base oils or lubricant additives

Country Status (9)

Country Link
US (1) US11453837B2 (https=)
EP (1) EP3880773B1 (https=)
JP (1) JP7459087B2 (https=)
KR (1) KR20210092249A (https=)
CN (1) CN112996889B (https=)
CA (1) CA3118972A1 (https=)
ES (1) ES2925364T3 (https=)
PL (1) PL3880773T3 (https=)
WO (1) WO2020099078A1 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113597463B (zh) * 2019-03-20 2022-08-02 赢创运营有限公司 用于改进燃料经济性、分散性和沉积物性能的聚(甲基)丙烯酸烷基酯
ES2950909T3 (es) 2020-05-05 2023-10-16 Evonik Operations Gmbh Copolímeros de polidieno lineales hidrogenados como material base o aditivos lubricantes para composiciones lubricantes
JP7809965B2 (ja) * 2021-12-01 2026-02-03 三菱ケミカル株式会社 潤滑油添加剤

Family Cites Families (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL296137A (https=) 1963-08-02 1900-01-01
GB1165286A (en) 1967-03-15 1969-09-24 Giegy U K Ltd Oligomerisation Process
GB1112749A (en) 1967-04-25 1968-05-08 Shell Int Research Lubricant compositions
US3541064A (en) 1968-07-11 1970-11-17 Bridgestone Tire Co Ltd Hydrogenation catalysts and a process for hydrogenating polymers by the use of them
US3795615A (en) 1972-07-28 1974-03-05 J Pappas Hydrogenated copolymers of butadiene with another conjugated diene are useful as oil additives
FR2289597A2 (fr) 1974-10-31 1976-05-28 Inst Francais Du Petrole Utilisation nouvelle de polymeres de dienes pour ameliorer la tenue au froid des distillats du petrole et du petrole brut lui-meme et compositions qui en resulte
US4316973A (en) 1979-09-10 1982-02-23 The University Of Akron Novel telechelic polymers and processes for the preparation thereof
JPS58167604A (ja) * 1982-03-27 1983-10-03 Nippon Zeon Co Ltd 耐油劣化性ゴム部材
US4533482A (en) * 1982-12-30 1985-08-06 Rohm And Haas Company Hydrogenated diolefin-lower alkyl acrylate or methacrylate viscosity index improving copolymers for lubricating oils
DE3700363A1 (de) 1987-01-08 1988-07-21 Basf Ag Kraft- oder schmierstoffzusammensetzung und verwendung von polybutyl- oder polyisobutylderivaten in denselben
DE4025494A1 (de) 1990-08-11 1992-02-13 Roehm Gmbh Syntheseoele, die ganz oder teilweise aus oligomeren bzw. cooligomeren von (meth)acrylsaeureestern und 1-alkenen bestehen
DE4212569A1 (de) 1992-04-15 1993-10-21 Roehm Gmbh Syntheseöle enthaltend Cooligomere, bestehend aus 1-Alkenen und (Meth)acrylsäureestern
US5393843A (en) 1992-08-31 1995-02-28 Shell Oil Company Butadiene polymers having terminal functional groups
US5312884A (en) * 1993-04-30 1994-05-17 Rohm And Haas Company Copolymer useful as a pour point depressant for a lubricating oil
EP0668342B1 (en) 1994-02-08 1999-08-04 Shell Internationale Researchmaatschappij B.V. Lubricating base oil preparation process
US5763548A (en) 1995-03-31 1998-06-09 Carnegie-Mellon University (Co)polymers and a novel polymerization process based on atom (or group) transfer radical polymerization
US5807937A (en) 1995-11-15 1998-09-15 Carnegie Mellon University Processes based on atom (or group) transfer radical polymerization and novel (co) polymers having useful structures and properties
EP1365005B1 (en) 1995-11-28 2005-10-19 Shell Internationale Researchmaatschappij B.V. Process for producing lubricating base oils
CA2237068C (en) 1995-12-08 2005-07-26 Exxon Research And Engineering Company Biodegradable high performance hydrocarbon base oils
DE69707452T3 (de) 1996-06-12 2015-07-23 Warwick Effect Polymers Ltd. Polymerisation-katalysator und -verfahren
CA2259559C (en) 1996-07-10 2004-11-09 E.I. Du Pont De Nemours And Company Polymerization with living characteristics
TW593347B (en) 1997-03-11 2004-06-21 Univ Carnegie Mellon Improvements in atom or group transfer radical polymerization
US6071980A (en) 1997-08-27 2000-06-06 E. I. Du Pont De Nemours And Company Atom transfer radical polymerization
US6090989A (en) 1997-10-20 2000-07-18 Mobil Oil Corporation Isoparaffinic lube basestock compositions
US6184307B1 (en) 1998-01-30 2001-02-06 Shell Oil Company Minimum residence time hydrogenation process for polyisoprene-polybutadiene block copolymers
US6059955A (en) 1998-02-13 2000-05-09 Exxon Research And Engineering Co. Low viscosity lube basestock
US6008164A (en) 1998-08-04 1999-12-28 Exxon Research And Engineering Company Lubricant base oil having improved oxidative stability
US6165949A (en) 1998-09-04 2000-12-26 Exxon Research And Engineering Company Premium wear resistant lubricant
US6103099A (en) 1998-09-04 2000-08-15 Exxon Research And Engineering Company Production of synthetic lubricant and lubricant base stock without dewaxing
US6475960B1 (en) 1998-09-04 2002-11-05 Exxonmobil Research And Engineering Co. Premium synthetic lubricants
US6080301A (en) 1998-09-04 2000-06-27 Exxonmobil Research And Engineering Company Premium synthetic lubricant base stock having at least 95% non-cyclic isoparaffins
US6332974B1 (en) 1998-09-11 2001-12-25 Exxon Research And Engineering Co. Wide-cut synthetic isoparaffinic lubricating oils
US6350723B1 (en) 1998-11-30 2002-02-26 Ethyl Corporation Block copolymers prepared by anionic polymerization
FR2798136B1 (fr) 1999-09-08 2001-11-16 Total Raffinage Distribution Nouvelle huile de base hydrocarbonee pour lubrifiants a indice de viscosite tres eleve
DE19962568C2 (de) 1999-12-23 2002-06-20 Wacker Polymer Systems Gmbh Verfahren zur Herstellung von Polyvinylalkohol-stabilisierten 1,3-Dien-(Meth)acrylsäureester-Mischpolymerisaten
US7067049B1 (en) 2000-02-04 2006-06-27 Exxonmobil Oil Corporation Formulated lubricant oils containing high-performance base oils derived from highly paraffinic hydrocarbons
US6841695B2 (en) 2003-03-18 2005-01-11 Rohmax Additives Gmbh Process for preparing dithioesters
US7163913B2 (en) 2003-07-01 2007-01-16 Infineum International Limited Viscosity index improvers for lubricating oil compositions
WO2010142789A1 (en) * 2009-06-12 2010-12-16 Evonik Rohmax Additives Gmbh A fluid having improved viscosity index
DE102010028195A1 (de) 2010-04-26 2011-10-27 Evonik Rohmax Additives Gmbh Schmiermittel für Getriebe
JP5789111B2 (ja) 2011-03-25 2015-10-07 Ｊｘ日鉱日石エネルギー株式会社 潤滑油組成物
BR112014031498A2 (pt) 2012-06-21 2017-06-27 Shell Int Research composição lubrificante, e, uso de uma composição lubrificante
US20160097017A1 (en) * 2013-04-18 2016-04-07 Evonik Oil Additives Gmbh Transmission oil formulation for reducing fuel consumption
JP5878199B2 (ja) * 2013-04-23 2016-03-08 三洋化成工業株式会社 粘度指数向上剤及び潤滑油組成物
JP2015143346A (ja) 2013-12-27 2015-08-06 三洋化成工業株式会社 変性ブタジエン（共）重合体、反応性ブタジエン（共）重合体及び変性ブタジエン（共）重合体の製造方法
US10113133B2 (en) * 2016-04-26 2018-10-30 Afton Chemical Corporation Random copolymers of acrylates as polymeric friction modifiers, and lubricants containing same
CN107540784B (zh) * 2016-06-28 2021-02-09 中国石油化工股份有限公司 一种梯度共聚物、其制造方法及其应用
EP3378877B1 (en) 2017-02-28 2019-06-19 Evonik Oil Additives GmbH Hydrogenated polybutadienes useful as lubricant additives
US10351792B2 (en) * 2017-05-09 2019-07-16 Afton Chemical Corporation Poly (meth)acrylate with improved viscosity index for lubricant additive application
WO2019111752A1 (ja) * 2017-12-05 2019-06-13 株式会社Adeka 摩擦抑制化合物および該摩擦抑制化合物を含有する摩擦抑制組成物
CA3118955C (en) 2018-11-13 2023-11-28 Evonik Operations Gmbh Process for preparing random copolymers
ES2950909T3 (es) 2020-05-05 2023-10-16 Evonik Operations Gmbh Copolímeros de polidieno lineales hidrogenados como material base o aditivos lubricantes para composiciones lubricantes

Also Published As

Publication number Publication date
US11453837B2 (en) 2022-09-27
US20220017835A1 (en) 2022-01-20
CN112996889A (zh) 2021-06-18
JP2022513023A (ja) 2022-02-07
WO2020099078A1 (en) 2020-05-22
EP3880773B1 (en) 2022-07-06
CN112996889B (zh) 2023-05-16
ES2925364T3 (es) 2022-10-17
EP3880773A1 (en) 2021-09-22
KR20210092249A (ko) 2021-07-23
JP7459087B2 (ja) 2024-04-01
PL3880773T3 (pl) 2022-09-19

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