EP3898736A1 - Composition comprenant des cyanoacrylates et au moins un copolymere a blocs - Google Patents
Composition comprenant des cyanoacrylates et au moins un copolymere a blocsInfo
- Publication number
- EP3898736A1 EP3898736A1 EP19850788.1A EP19850788A EP3898736A1 EP 3898736 A1 EP3898736 A1 EP 3898736A1 EP 19850788 A EP19850788 A EP 19850788A EP 3898736 A1 EP3898736 A1 EP 3898736A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cyanoacrylate
- monomers
- block
- composition according
- block copolymer
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- C08F287/00—Macromolecular compounds obtained by polymerising monomers on to block polymers
-
- 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
- C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (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
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts 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
- 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
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/30—Nitriles
- C08F222/32—Alpha-cyano-acrylic acid; Esters thereof
- C08F222/327—Alpha-cyano-acrylic acid alkoxy ester
-
- 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
- C08F293/00—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
- C08F293/005—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule using free radical "living" or "controlled" polymerisation, e.g. using a complexing agent
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
-
- 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
- C08F2438/00—Living radical polymerisation
- C08F2438/02—Stable Free Radical Polymerisation [SFRP]; Nitroxide Mediated Polymerisation [NMP] for, e.g. using 2,2,6,6-tetramethylpiperidine-1-oxyl [TEMPO]
Definitions
- composition comprising cyanoacrylates and at least one block copolymer
- the present invention relates to a composition
- a composition comprising cyanoacrylate monomers and at least one block copolymer and which can be polymerized.
- This polymerized composition has mechanical properties, of thermal resistance in a humid environment or not, improved compared to known polymerized compositions.
- these polymerized compositions have excellent adhesive properties with respect to metals, composite materials, plastics, wood. Adhesion times are very short, from a few seconds to a few minutes with a long open time.
- these compositions have the capacity to constitute glue joints for thicknesses up to 2mm.
- Cyanoacrylate compositions are known as one-component adhesive compositions with very fast setting times which can be used on a large number of substrates except polyolefins and fluoropolymers.
- EP2092017 takes up a similar concept, by adding to the cyanoacrylate compositions core-shell particles having a soft core and a hard shell combined with an elastomer.
- the Applicant shows in the present invention that the formulations of cyanoacrylate monomers combined with at least one block copolymer makes it possible to dispense with the presence of core-shell particles by exhibiting adhesive properties and mechanical properties, and thermal resistance in a humid environment. or not, improved compared to known compositions while eliminating the presence of core-bark particles making these compositions formulations easier to prepare. Furthermore, the applicant has shown that the preparation of block copolymers comprising at least one cyanoacrylate monomer is made possible by radical polymerization Controlled by nitroxides, contrary to what asserts the prior art (C. Duffy et al. JOURNAL OF POLYMER SCIENCE, PART A: POLYMER CHEMISTRY 2017, 55, 1397-1408).
- the invention relates to a composition comprising at least one cyanoacrylate monomer (1) and at least one block copolymer not containing diene monomer, this composition not comprising core-shell particles.
- compositions of the invention comprise a cyanoacrylate monomer (1) and at least one block copolymer not containing a diene monomer, this block copolymer possibly or not containing a cyanoacrylate monomer (2), this composition not comprising particles heart bark.
- the monomers (1) and (2) may be wholly or partly different or equivalent.
- cyanoacrylate monomer (1) is meant any type of cyanoacrylate monomer but in particular the following monomers represented by formula A:
- R is chosen from C1 to C16 linear or branched alkyl, C2 to C16 alkoxy-alkyl, C3 to C16 cycloalkyl, C2 to C16 alkenyl, C1 to C16 aralkyl, C6 to C16 aryl, Clyl alyl C3 to C16, and C1 to C16 haloalkyl and more particularly 2-methyl cyanoacrylate, ethyl cyanoacrylate, butyl cyanoacrylate, propyl cyanoacrylate and octyl cyanoacrylate, 2-methoxy ethyl cyanoacrylate and preferably 2- methoxy ethyl cyanoacrylate.
- block copolymer any type of block copolymer and preferably di-block copolymers or tri-block copolymers and more preferably di-block copolymers. These block copolymers do not contain diene monomers. In fact, the copolymers containing diene monomers, for example SBS or SEBS are not very soluble in cyanoacrylate monomers and are not suitable for the compositions of the invention.
- the presence of acid is known to be necessary for the polymerization of cyanoacrylates. The acid makes it possible to polymerize the cyanoacrylates by the radical route. The conventional process for the polymerization of cyanoacrylates is anionic. To avoid this mechanism, it is known to add acid.
- the presence of acid can be provided by a monomer during the preparation of the block copolymer and therefore forms an integral part of the block copolymer
- the presence of acid can also be provided by a non-polymerizable acid c ' that is to say does not carry double bonds.
- the amount of acid is between 0.1 and 5 mol% of the cyanoacrylate monomers present within the block containing the cyanoacrylate monomer (s) and preferably between 0.6 and 2.5% in order to carry out the polymerization with a radical mechanism with reasonable kinetics, ie a few hours.
- the block copolymers present in at least one of the blocks at least one monomer having acid functions and one cyanoacrylate monomer (2), in particular the following monomers represented by formula A:
- R is chosen from C1 to C16 linear or branched alkyl, C2 to C16 alkoxy-alkyl, C3 to C16 cycloalkyl, C2 to C16 alkenyl, C1 to C16 aralkyl, C6 to C16 aryl, Clyl alyl C3 to C16, and C1 to C16 haloalkyl and more particularly 2-methyl cyanoacrylate, ethyl cyanoacrylate, butyl cyanoacrylate, propyl cyanoacrylate and octyl cyanoacrylate, 2-methoxy ethyl cyanoacrylate and preferably 2- methoxy ethyl cyanoacrylate.
- the acid monomers are chosen from acrylic acid, methacrylic acid, itaconic acid in molar proportions relative to the cyanoacrylate monomer of between 0.1 and 5% and preferably between 0.6 and 2.5%.
- the presence of acid is ensured by a non-polymerizable acid such as organic acids, for example trichloracetic, trifluoroacetic acid, sulfonic acids in particular methane sulfonic acid, para toluene sulfonic acid, preferably methane sulfonic acid in molar proportions relative to the cyanoacrylate monomer of between 0.1 and 5% and of preferably between 0.6 and 2.5%.
- the block copolymers comprising at least one cyanoacrylate monomer do not carry an acid function.
- compositions of the invention do not contain core-shell particles or block copolymers containing diene monomers.
- the cyanoacrylate monomers present in the composition of the invention are partially or entirely identical to those present in the one or more, see all of the block copolymers within one or more blocks block copolymers present in the composition of the invention.
- the preparation of the block copolymers present in the compositions of the invention is carried out in a controlled radical fashion.
- controlled radical polymerization this can be controlled by any known technique such as NMP (“Nitroxide Mediated Polymerization”), RAFT (“Reversible Addition and Fragmentation Transfer”), ATRP (“Atom Transfer Radical Polymerization”), INIFERTER (“ Initiator-Transfer-Termination ”), RITP (“ Reverse lodine Transfer Polymerization ”), ITP (“ lodine Transfer Polymerization).
- NMP Nonroxide Mediated Polymerization
- RAFT Reversible Addition and Fragmentation Transfer”
- ATRP Atom Transfer Radical Polymerization
- INIFERTER Initiator-Transfer-Termination
- RITP Reverse lodine Transfer Polymerization
- ITP lodine Transfer Polymerization
- the copolymers are prepared by polymerization controlled by nitroxides (NMP).
- nitroxides derived from alkoxyamines derived from the stable free radical (3) are preferred.
- _ has a molar mass greater than 15.0342 g / mole.
- _ may be a halogen atom such as chlorine, bromine or iodine, a linear, branched or cyclic, saturated or unsaturated hydrocarbon group such as an alkyl or phenyl radical, or a COOR ester group or an alkoxyl group OR, or a phosphonate group PO (OR) 2, provided that it has a molar mass greater than 15.0342.
- _, monovalent, is said to be in position * with respect to the nitrogen atom of the nitroxide radical.
- the remaining valences of the carbon atom and the nitrogen atom in formula (3) can be linked to various radicals such as a hydrogen atom, a hydrocarbon radical such as an alkyl, aryl or aryl radical. -alkyl, comprising from 1 to 10 carbon atoms. It is not excluded that the carbon atom and the nitrogen atom in the formula (3) are linked together via a bivalent radical, so as to form a ring. Preferably, however, the remaining valences of the carbon atom and the nitrogen atom of formula (3) are linked to monovalent radicals.
- _ has a molar mass greater than 30 g / mole.
- _ can for example have a molar mass of between 40 and 450 g / mole.
- _ may be a radical comprising a phosphoryl group, said radical R
- R 3 and R 4 which may be identical or different, may be chosen from the alkyl, cycloalkyl, alkoxyl, aryloxyl, aryl, aralkyloxyl, perfluoroalkyl, aralkyl radicals, and may comprise from 1 to 20 carbon atoms.
- R 3 and / or R 4 can also be a halogen atom such as a chlorine or bromine or fluorine or iodine atom.
- the radical R 1 can also comprise at least one aromatic ring as for the phenyl radical or the naphthyl radical, the latter being able to be substituted, for example by an alkyl radical comprising from 1 to 4 carbon atoms.
- alkoxyamines derived from the following stable radicals are preferred.
- N-tertiobutyl-1 -diethylphosphono-2,2-dimethyl propyl nitroxide N-tertiobutyl-1 -diethylphosphono-2,2-dimethyl propyl nitroxide.
- the alkoxyamines used in controlled radical polymerization must allow good control of the chain of the monomers. Thus, they do not all allow good control of certain monomers.
- the alkoxyamines derived from TEMPO make it possible to control only a limited number of monomers, the same applies to the alkoxyamines derived from 2,2,5-tri-methyl-4-phenyl-3-azahexane-3-nitroxide. (TIPNO).
- alkoxyamines derived from nitroxides corresponding to formula (3) particularly those derived from nitroxides corresponding to formula (4) and even more particularly those derived from N-tertiobutyl-1-diethylphosphono-2,2-dimethyl propyl nitroxides make it possible to extend the controlled radical polymerization of these monomers to a large number of monomers.
- alkoxyamines also influences the economic factor. The use of low temperatures will be preferred to minimize industrial difficulties.
- the block copolymers are prepared by controlled radical polymerization, even more particularly by polymerization controlled by nitroxides, in particular N-tertiobutyl-1-diethylphosphono- 2,2-dimethyl-propyl nitroxide .
- the monomers other than the cyanoacrylate monomers which may be present in the block copolymers present in the compositions of the invention will be chosen from the following: Vinyl, vinylidene, olefinic, allyl or (meth) acrylic monomer, more particularly among the vinyl aromatic monomers such as styrene or substituted styrenes, in particular alpha-methylstyrene, mono, di, tri quadra or pentafluorinated styrenes, acrylic monomers such as acrylic acid or its salts, alkyl, cycloalkyl acrylates or aryl such as methyl, ethyl, butyl, ethylhexyl or phenyl acrylate, hydroxyalkyl acrylates such as 2-hydroxyethyl acrylate, etheralkyl acrylates such as acrylate of 2-methoxyethyl, alkoxy- or aryloxy-polyalkylene glycol acrylates such as meth
- the block copolymers present in the composition of the invention have a Tg of less than -10 ° C and a Tg of more than 25 ° C, measured by DSC.
- the monomers other than the cyanoacrylate monomers are chosen from C1 to C8 and preferably C1 to C4 alkyl acrylates or methacrylates as well as styrene and substituted styrenes. More preferably, the monomers other than the cyanoacrylate monomers are chosen from methyl methacrylate, butyl acrylate, 2-ethyl hexyl acrylate and styrene.
- the cyanoacrylate monomer (s) are present in the Tg block below - 10 ° C or in the Tg block higher than 25 ° C. More preferably, the cyanoacrylate monomer (s) are present within a block having a Tg of less than -10 ° C.
- At least one of the block copolymers present in the composition of the invention has a number-average molecular mass measured by SEC (polystyrene standards) of between 10,000 and 100,000 and preferably between 15,000 and 50,000.
- At least one of the block copolymers included in the composition of the invention has a mass ratio Tg block ⁇ -10 ° C / Tg block> 25 ° C between 5/95 and 95/5, preferably between 30 / 70 and 70/30, and preferably between 45/55 and 55/45.
- the mass ratio of the cyanoacrylate monomers (2) to block copolymer is between 1/99 and 80/20, preferably between 1/99 and 50/50 and more preferably between 1/99 and 30/70.
- the process allowing the preparation of the block copolymer (s) present in the compositions of the invention is a process by the solvent route, excluding a bulk process or in the presence of water (emulsion, suspension ).
- the Applicant has thus shown that beyond 70% by mass in solid content, the polymerization leads to a product which cannot be recovered because it is in the form of a gel or in another form such as setting en masse.
- the invention therefore also relates to the process for obtaining the block copolymers of the compositions of the invention when a cyanoacrylate monomer is present in at least one of the blocks, the said process being a process in the solvent phase with a level of solid less than or equal to 70% by mass, preferably less than 50% and more preferably less than 40% comprising the following steps:
- the maximum solid level is 70% when the acid is an organic non-polymerizable acid, preferably methane sulfonic acid and 40% when the acid is a polymerizable acid monomer.
- the solvent can be of any type provided that the constituent monomers of the block copolymer as well as the block copolymer are dissolved.
- the solvent is toluene.
- the invention also relates to the block copolymer (s) present in the compositions of the invention, when these block copolymers comprise a cyanoacrylate monomer.
- compositions of the invention may contain one or more polymerization accelerators such as crown ethers, clixarenes, amines, difulfides, fillers, stabilizers, thickeners or other additives.
- polymerization accelerators such as crown ethers, clixarenes, amines, difulfides, fillers, stabilizers, thickeners or other additives.
- the invention also relates to the use of the compositions as an adhesive.
- the monomers are introduced into a stainless steel reactor by vacuum.
- the reaction mixture is stirred and degassed (vacuum / nitrogen 3 times).
- the reaction mixture is heated to 1115 ° C.
- the temperature is maintained at 115 ° C. throughout the polymerization until reaching a conversion rate of the monomers of 70%. Samples are taken from regular intervals to determine the kinetics of polymerization by gravimetry (measurement of dry extract).
- the reaction medium is cooled.
- the residual monomers are evaporated in vacuo.
- Cyanoacrylate Methoxy Ethyl Cyanoacrylate (MECA); Ethyl cyanoacrylate (ECA), Butyl cyanoacrylate (BuCA).
- AMA Methacrylic acid
- AMS Methane sulfonic acid
- the reaction mixture is introduced into the reactor by vacuum, stirred and degassed with a vacuum / nitrogen.
- the temperature of the reaction medium is then brought to 1 15 ° C.
- the temperature is kept constant throughout the polymerization until a conversion of the monomer of 70% is achieved.
- Samples are taken at regular intervals to determine the kinetics of gravimetric polymerization (measurement of dry extract).
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Graft Or Block Polymers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1873266A FR3090666B1 (fr) | 2018-12-19 | 2018-12-19 | Composition comprenant des cyanoacrylates et au moins un copolymère à blocs |
| PCT/FR2019/053184 WO2020128349A1 (fr) | 2018-12-19 | 2019-12-19 | Composition comprenant des cyanoacrylates et au moins un copolymere a blocs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3898736A1 true EP3898736A1 (fr) | 2021-10-27 |
Family
ID=67999688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19850788.1A Withdrawn EP3898736A1 (fr) | 2018-12-19 | 2019-12-19 | Composition comprenant des cyanoacrylates et au moins un copolymere a blocs |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20220056179A1 (fr) |
| EP (1) | EP3898736A1 (fr) |
| JP (1) | JP2022513249A (fr) |
| KR (1) | KR102588037B1 (fr) |
| CN (1) | CN113366042A (fr) |
| FR (1) | FR3090666B1 (fr) |
| WO (1) | WO2020128349A1 (fr) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IE45111B1 (en) * | 1976-07-14 | 1982-06-30 | Loctite Ltd | Cyanoacrylate adhesive paste compositions |
| JPH0670105B2 (ja) * | 1986-12-29 | 1994-09-07 | 凸版印刷株式会社 | 単分散重合体の製造方法 |
| JPH08259899A (ja) | 1995-03-23 | 1996-10-08 | Three Bond Co Ltd | シアノアクリレート系接着剤組成物 |
| US6224622B1 (en) * | 1999-09-29 | 2001-05-01 | Chemence, Inc. | Bioabsorable cyanoacrylate tissue adhesives |
| US6737215B2 (en) | 2001-05-11 | 2004-05-18 | Clariant Finance (Bvi) Ltd | Photoresist composition for deep ultraviolet lithography |
| US6660327B2 (en) * | 2001-12-28 | 2003-12-09 | Mattel, Inc. | Process of applying a cyanoadhesive composition |
| WO2008085285A1 (fr) | 2006-12-19 | 2008-07-17 | Henkel Corporation | Compositions de cyanoacrylate contenant des dispersions de caoutchouc à noyau/coque dans des (méth)acrylates |
| FR3045645B1 (fr) * | 2015-12-18 | 2019-07-05 | Arkema France | Procede de reduction des defauts dans un film ordonne de copolymeres a blocs |
| JP6863456B2 (ja) * | 2017-04-26 | 2021-04-21 | 東亞合成株式会社 | 2−シアノアクリレート系接着剤組成物 |
-
2018
- 2018-12-19 FR FR1873266A patent/FR3090666B1/fr active Active
-
2019
- 2019-12-19 WO PCT/FR2019/053184 patent/WO2020128349A1/fr not_active Ceased
- 2019-12-19 KR KR1020217022365A patent/KR102588037B1/ko active Active
- 2019-12-19 JP JP2021534387A patent/JP2022513249A/ja active Pending
- 2019-12-19 CN CN201980084426.0A patent/CN113366042A/zh active Pending
- 2019-12-19 US US17/413,843 patent/US20220056179A1/en not_active Abandoned
- 2019-12-19 EP EP19850788.1A patent/EP3898736A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| KR102588037B1 (ko) | 2023-10-11 |
| US20220056179A1 (en) | 2022-02-24 |
| WO2020128349A1 (fr) | 2020-06-25 |
| JP2022513249A (ja) | 2022-02-07 |
| FR3090666B1 (fr) | 2021-11-19 |
| FR3090666A1 (fr) | 2020-06-26 |
| KR20210105395A (ko) | 2021-08-26 |
| CN113366042A (zh) | 2021-09-07 |
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