EP4634298A1 - Compositions de resines epoxy thermoplastiques-copolymeres a blocs - Google Patents
Compositions de resines epoxy thermoplastiques-copolymeres a blocsInfo
- Publication number
- EP4634298A1 EP4634298A1 EP23838186.7A EP23838186A EP4634298A1 EP 4634298 A1 EP4634298 A1 EP 4634298A1 EP 23838186 A EP23838186 A EP 23838186A EP 4634298 A1 EP4634298 A1 EP 4634298A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- block
- epoxy resin
- compositions
- block copolymer
- block copolymers
- 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
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/007—Methods for continuous mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/12—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
- B29B7/14—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with screw or helix
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
- B29B7/90—Fillers or reinforcements, e.g. fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing compounds
- C08G59/4021—Ureas; Thioureas; Guanidines; Dicyandiamides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/68—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used
- C08G59/686—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
- B29B7/845—Venting, degassing or removing evaporated components in devices with rotary stirrers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2353/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
Definitions
- TITLE Compositions of thermoplastic epoxy resins - block copolymers
- the invention relates to compositions of block copolymers and thermoplastic epoxy resins, their use in the mechanical reinforcement of filled or unfilled thermo-hard epoxy formulations as well as filled or unfilled thermo-hard epoxy formulations obtained.
- the invention also relates to a process for preparing these compositions of block copolymers and thermoplastic epoxy resins.
- Epoxy resins are used in a wide variety of fields, ranging from the manufacture of objects intended for objects in the automotive, aeronautical and even sports fields. They find applications in structural adhesives, as a matrix for composite materials or even in applications to protect electronic components.
- Epoxy objects or materials are obtained by reacting functional epoxy resins with a functional hardener.
- a thermo-hard material is obtained, that is to say having a certain crosslinking density.
- the crosslinking density makes it possible to adjust the properties, as well as the nature of the epoxy resins and the nature of the hardener(s).
- Thermo-cured epoxy materials generally have a high crosslinking density, this is to ensure a high glass transition temperature (Tg), so that the final material has good thermomechanical properties.
- Block copolymers useful in reinforcing epoxy resins are present at room temperature in the form of granules. Epoxy resins are in liquid or solid form at room temperature and mixing with block copolymers requires stirring, time and temperature conditions which are restrictive for the formulator.
- One solution used consists of grinding the block copolymer granules to facilitate their dilution, but this adds a step.
- the applicant has developed a composition which facilitates the dispersion of the block copolymers in the epoxy resins in the form of granules with a high copolymer content. blocks in a solid thermoplastic epoxy resin. These granules are obtained in a mixing tool such as a mixer or extruder. These granules mix much more easily, avoiding problems linked to mixing time, bubbling or foaming which are generated during formulation.
- compositions obtained allow a balance of final properties at an identical block copolymer level superior to those obtained in the prior art.
- the invention relates to a mass composition consisting of the following mixture M:
- thermoplastic epoxy resin (1) whose glass transition temperature(s) measured by DSC are greater than 25°C
- At least one block copolymer (2) in mass proportions of between 25 and 70% of the total (1) + (2), in which at least one block copolymer has at least one block A having a glass transition temperature Tg greater than 25°C measured by DMA and at least one block B having a transition temperature Tg less than 0°C measured by DMA and having at least one polar and/or hydrophilic functional monomer in at least one of the blocks, said monomer polar and/or hydrophilic functional being present in mass proportions relative to the block considered between 5 and 50%, said composition being in solid form at a temperature below 50° C.
- thermoplastic epoxy resin(s) present within the compositions of the invention have Tg greater than 25°C, preferably greater than 30°C and even more preferably greater than 50°C measured by DSC (differential scanning calorimetry).
- the block copolymers useful in the context of the present invention are multi-block copolymers, preferably not containing butadiene. They are made up of blocks A (called hard blocks) having a glass transition temperature Tg greater than 25°C, preferably greater than 50°C and even more preferably greater than 70°C, and does B (called soft blocks ) having a Tg less than 0°C, preferably less than -25°C, linear or star-shaped of formula (A) n B or (B) n A, and preferably (A) n B, with n taking the values of 2 to 8, preferably 2 to 6, preferably 2 to 4 and even more preferably 2-3, that is to say di block or tri block copolymers and preferably tri block, linear or in star.
- At least one of the blocks A or B comprises at least one polar and/or hydrophilic monomer in mass proportions of polar and/or hydrophilic monomers of between 5 and 50% of the block considered.
- the term “glass transition temperature” or “Tg” designates the temperature at which the polymer material passes from the glassy state to a non-glassy state corresponding to a certain mobility of the polymer chains between them.
- the glass transition temperature of the block copolymers is determined by dynamic mechanical analysis (DMA).
- block copolymer designates a copolymer having a plurality of different polymer segments, each segment, also called “block”, being made up of the chain of monomers which may be identical or different.
- each segment or block can be a homopolymer or a copolymer.
- the blocks A comprise the sequence of monomers chosen from linear or branched alkyl (meth)acrylates from Ci to Gis, cyclic or not, and in particular methyl methacrylate, optionally resulting from a recycling process by depolymerization, styrene and substituted styrenes, isobornyl (meth)acrylates, acrylates or methacrylates substituted with polar and/or hydrophilic functions in a combined or uncombined manner.
- monomers chosen from linear or branched alkyl (meth)acrylates from Ci to Gis, cyclic or not, and in particular methyl methacrylate, optionally resulting from a recycling process by depolymerization, styrene and substituted styrenes, isobornyl (meth)acrylates, acrylates or methacrylates substituted with polar and/or hydrophilic functions in a combined or uncombined manner.
- polar and/or hydrophilic we mean groups such as groups of the carboxylic (-COOH), hydroxyl (-OH), amide (-CONH) type, or even ethylene glycol or polyethylene glycol substituted or not on their terminal function by alkyl, phosphate, phosphonate or sulfonate groups. Mention will be made in particular of (meth)acrylic acids as well as alkyl acrylamides, in particular dimethyl acrylamide, diethyl acrylamide or isopropyl acrylamide.
- the blocks B will preferably consist of the sequence of monomers chosen from butyl acrylate, 2-ethylhexyl acrylate, octyl, nonyl, lauryl acrylate and their mixtures, optionally in mixture with styrene, acrylates or methacrylates substituted with polar and/or hydrophilic functions. Mention will be made in particular of (meth)acrylic acids as well as alkyl acrylamides, in particular dimethyl acrylamide, diethyl acrylamide or isopropyl acrylamide. More preferably, the blocks B consist of the chain of butyl acrylate monomers with or without a polar and/or hydrophilic functional monomer.
- At least one of the blocks A or B comprises at least one polar and/or hydrophilic functional monomer in mass proportions of polar and/or hydrophilic functional monomers of between 5 and 50% by weight, preferably between 5 and 30%. , preferably between 5 and 20% when at least one polar and/or hydrophilic functional monomer is present in the soft block B, preferably between 5 and 12%, and when at least one polar and/or hydrophilic functional monomer is present in the hard block A preferably between 5 and 12%.
- the polar and/or hydrophilic functional monomer is present in the hard block A.
- pBuA-(p(MMAcoMAA))s pBuA-(p(MMAcoAA))s, p(BuAcoAA)-(pMMA)s, pBuA- (p(MMAco DMA)) 3 , pBuA- (p(MMAco IPA)) 3 , pBuA- (p(MMAco DEA)) 3 and preferably pBuA-(p(MMAco DMA))s, pBuA- (p(MMAco IPA))s, p(BuAcoSty)-(p(MMAcoMAA))s And pBuA- (p(MMAco DEA))s.
- MMA can be substituted in whole or in part by IBOA and/or IBOMA.
- MMA methyl methacrylate
- MAA methacrylic acid
- AA acrylic acid
- BuA butyl acrylate
- Sty styrene
- DMA dimethylacrylamide
- IPA isopropylacrylamide
- DEA diethyl acrylamide
- IBOA isobornyl acrylate
- IBOMA methacrylate isobornyl
- the block copolymers useful in the context of the present invention typically have a molecular mass by weight measured by SEC (size exclusion chromatography) with a polystyrene calibration of between 10,000 and 200,000 g/mole and preferably between 30,000 and 150,000 g/mole, and more preferably between 30,000 and 100,000 g/mole with a hard block/soft block mass ratio of between 20/80 and 80/20.
- SEC size exclusion chromatography
- block copolymers useful in the context of the present invention are preferably prepared by controlled radical polymerization, without excluding other methods of preparation. Controlled radical polymerizations make it possible to obtain block copolymers in sequential steps within the same process operation.
- block copolymers can be prepared by “RAFT” (Radical Addition Fragmentation Transfer) polymerization or by nitroxide-controlled polymerization, also called “NMP” (Nitroxide Mediated Polymerization).
- the block copolymers are prepared by NMP, in particular by NMP using the counter radical N-tert-Butyl-1-diethyl-phosphono-2,2-dimethyl-propyl nitroxide. The synthesis of block copolymers using this counter radical is described in particular in EP1526138.
- compositions of the invention consist of one or more epoxy resins with a Tg > 25°C measured by DSC and at least one block copolymer in mass proportions of block copolymer of between 25 and 70% of the total mass of epoxy resin and block copolymers and preferably between 27 and 55%.
- compositions of the invention have a viscosity greater than 50 Pa.s for a shear gradient of between 0.1 and 100 s-1, in a temperature range of between 120 °C and 210 °C, and (preferably between 140 and 190°C.
- compositions of the invention are prepared using a mixing tool of the single-screw or twin-screw extruder type, preferably twin-screw, or a mixer, at temperatures between 120 and 210°C.
- a degassing well preference of the invention, can be present with a vacuum, completely eliminating the phenomena of bubbling within the granules obtained.
- compositions of the invention also relates to a process for preparing the compositions of the invention comprising the following steps:
- the invention also relates to the use of the compositions of the invention in the formulation of ready-to-use epoxy resins, that is to say constituting the composition of objects once polymerized.
- ready-to-use epoxy resin formulations are formulations using the compositions of the invention combined with at least one other epoxy resin, at least one crosslinking agent, also called a hardener.
- the compositions of the invention will be combined with at least one liquid epoxy resin at room temperature (25°C) and at least one so-called solid epoxy resin at room temperature, with a Tg measured by DSC greater than 25°C. and preferably greater than 50°C.
- hardeners these are compounds that can react in temperature ranges between 15 and 200 °C. They can be acidic or basic. They can be anhydride type compounds, amino compounds, aliphatic with functionalities greater than or equal to two.
- the present invention also relates to thermo-hard compositions of the epoxy type formulated with the compositions of the invention by combination of the compositions of the invention, at least one epoxy resin (3) and at least one hardener suitable for their polymerization in the presence or absence of fillers such as woven or non-woven fibers of carbon, glass, aramid, boron or silica fibers and possibly in the presence of other adjuvants such as solvents, reactive diluents such as ethers and glycidyl esters, pigments and dyes, plasticizers, flame retardants, without limitation.
- formulated is meant the homogenized mixture of the compositions of the invention consisting of a thermoplastic epoxy resin and a block copolymer, at least one second epoxy resin and at least one hardener.
- the present invention also relates to the composite materials obtained using the compositions of the invention, whether in the form of pre-impregnated materials (called “prepreg” in Anglo-Saxon terminology) or thermo-cured composite objects.
- Example 1 preparation of the compositions of the invention.
- the block copolymer denoted BCP has a block whose Tg is less than 0°C and a block whose Tg is greater than 25°C.
- the block copolymer has acrylamide functionality. This type of copolymer is available under the trade name Nanostrength® from Arkema.
- the epoxy resin used has a Tg of 31°C measured by DSC (differential scanning calorimetry) and is available under the trade name EPONTM Resin 1001 F (Hexion).
- compositions M are extruded at different mass percentages BCP and epoxy resin according to Table 1 under the conditions following:
- the different constituents are dosed using two gravimetric dosers.
- the first doser is used for dosing the polymer, which is introduced into the main hopper.
- the second dispenser is used to dose the epoxy flakes.
- MO 100% epoxy resin
- M5 100% BCP
- Example 2 Rheology of compositions M.
- the resin used EPONTM Resin 1001 F is the most unfavorable case because its Tg is 31 °C, with a low molecular weight. Any other Tg resin above 31°C will exhibit rheology behavior which will be more favorable to the manufacture of the compositions of the invention by extrusion with the possibility of obtaining granules.
- the viscosity of the formulations is determined on an MCR301 type imposed stress rheometer from ANTON PAAR.
- the measurement is carried out by scanning the flow stress at the desired measurement temperature.
- the geometry used is quilt or plane - plane type.
- compositions of the invention have a viscosity greater than 50 Pa.s for a shear rate of between 0.1 and 100 s-1, in a temperature range of between 120°C and 210°C, and (preferably between 140 and 190°C.
- Table 2 gives EtaO viscosities on the Newtonian plateau for different temperatures of compositions MO to M5. Granulation is possible when the compositions have an EtaO viscosity greater than 50 Pa.s. [Table 2]
- Example 3 Thermo-cured compositions and mechanical evaluations. In this example we compare the performance of thermo-cured compositions in the presence of block copolymer with introduction of the block copolymer according to the invention or according to the state of the art.
- BYK®-P 9920 anti-foaming agent (BYK supplier).
- the LY556 epoxy resin is weighed into the tank of a glass reactor fitted with a flat toothed disk dispersion turbine at 95°C with stirring at 200 rpm. At 95°C, the quantity of Master batch M52N+1001 F is introduced through the funnel with stirring at 400 rpm for 3 or 4 hours. The defoaming agent BYK P9920 is then introduced and the mixture is degassed. The mixture is then cooled to 80°C. After breaking the vacuum, the hardener/accelerator couple is introduced using a funnel. Leave to dissolve for 15 min and vacuum again for 35 min. The still liquid solution (80 ° C) is poured into stainless steel molds (placed in the oven at 160 ° C beforehand) 6 mm thick for the K1 C and G1 C tests, 2 mm thick for the traction specimens.
- test pieces are cut with a Charly robot (cutting with a strawberry)
- the masterbatch is dissolved at 10% in an Epikote 828 type resin at room temperature, in a beaker, using a magnetic bar.
- 5% block copolymers and 5% Epon 1001 F are introduced into an Epikote 828 type resin.
- compositions of the invention therefore make it possible to obtain better mechanical properties on formulations with epoxy resins and are easier to implement.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Epoxy Resins (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2213528A FR3143614B1 (fr) | 2022-12-16 | 2022-12-16 | Compositions de résines époxy thermoplastiques- copolymères à blocs |
| PCT/FR2023/052002 WO2024126951A1 (fr) | 2022-12-16 | 2023-12-13 | Compositions de resines epoxy thermoplastiques-copolymeres a blocs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4634298A1 true EP4634298A1 (fr) | 2025-10-22 |
Family
ID=85278472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23838186.7A Pending EP4634298A1 (fr) | 2022-12-16 | 2023-12-13 | Compositions de resines epoxy thermoplastiques-copolymeres a blocs |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4634298A1 (fr) |
| KR (1) | KR20250112791A (fr) |
| CN (1) | CN120322510A (fr) |
| FR (1) | FR3143614B1 (fr) |
| WO (1) | WO2024126951A1 (fr) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2809741B1 (fr) | 2000-05-31 | 2002-08-16 | Atofina | Materiaux thermodurs a tenue au choc amelioree |
| FR2861394B1 (fr) | 2003-10-24 | 2006-01-20 | Arkema | Procede de preparation de polyalcoaxymines utilisables comme amorceurs pour la polymerisation radicalaire de (co)polymeres vivants polyfonctionnels |
| JP5142726B2 (ja) * | 2005-01-20 | 2013-02-13 | アルケマ フランス | 耐衝撃強度に優れた熱硬化性樹脂材料 |
| FR2880895B1 (fr) | 2005-01-20 | 2007-02-23 | Arkema Sa | Materiaux thermodurs a tenue au choc amelioree |
| JP5444713B2 (ja) * | 2007-05-16 | 2014-03-19 | 東レ株式会社 | エポキシ樹脂組成物、プリプレグ、繊維強化複合材料 |
| US9988508B2 (en) * | 2012-08-20 | 2018-06-05 | Mitsubishi Chemical Corporation | Epoxy-resin composition and film, prepreg, and fiber-reinforced plastic using same |
-
2022
- 2022-12-16 FR FR2213528A patent/FR3143614B1/fr active Active
-
2023
- 2023-12-13 CN CN202380086419.0A patent/CN120322510A/zh active Pending
- 2023-12-13 KR KR1020257019144A patent/KR20250112791A/ko not_active Withdrawn
- 2023-12-13 WO PCT/FR2023/052002 patent/WO2024126951A1/fr not_active Ceased
- 2023-12-13 EP EP23838186.7A patent/EP4634298A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3143614A1 (fr) | 2024-06-21 |
| CN120322510A (zh) | 2025-07-15 |
| KR20250112791A (ko) | 2025-07-24 |
| FR3143614B1 (fr) | 2024-12-13 |
| WO2024126951A1 (fr) | 2024-06-20 |
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