WO2022200738A1 - Composition polyamide pour materiau - Google Patents
Composition polyamide pour materiau Download PDFInfo
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- WO2022200738A1 WO2022200738A1 PCT/FR2022/050547 FR2022050547W WO2022200738A1 WO 2022200738 A1 WO2022200738 A1 WO 2022200738A1 FR 2022050547 W FR2022050547 W FR 2022050547W WO 2022200738 A1 WO2022200738 A1 WO 2022200738A1
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- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
-
- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/36—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino acids, polyamines and polycarboxylic acids
-
- 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
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
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- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
-
- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
-
- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/40—Polyamides containing oxygen in the form of ether groups
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
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- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
- C08K3/105—Compounds containing metals of Groups 1 to 3 or of Groups 11 to 13 of the Periodic Table
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
- C08K3/11—Compounds containing metals of Groups 4 to 10 or of Groups 14 to 16 of the Periodic Table
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- 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
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/04—Polyamides derived from alpha-amino carboxylic acids
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- 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
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/06—Polyamides derived from polyamines and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/01—Magnetic additives
Definitions
- TITLE POLYAMIDE COMPOSITION FOR MATERIAL [Technical field]
- the present invention relates to compositions for magnetic composite materials and the composite materials as such.
- Magnetic composite materials are increasingly used in particular in motor vehicles as sensors, car alternators, dynamos or magnetos, in electrics and electronics, as loudspeakers or microphones, as well as in the telephony as a phone charger.
- compositions for magnetic materials are already known and involve mixtures of polyamide and magnetic fillers in powder form, the magnetic fillers being in the very high majority.
- the preparation of a composition containing a polyamide resin with a large amount of magnetic powder therefore requires mixing a large amount of magnetic powder with a composition containing the molten polyamide resin. Nevertheless, a very high viscosity is observed, which can make processability impossible and, moreover, the polyamide magnetic powder mixture has the disadvantage of being unstable.
- This second strategy makes it possible to slightly increase the molecular masses but it is necessary to improve the ductility of the final mixture.
- the sum of the copolymer, the magnetic powder, the coupling agent and the additive being equal to 100% by weight, the said copolymer consisting of:
- the mixture of a particular copolymer comprising in particular at least one monocarboxylic acid unit (B), at least one diamine unit (C) and at least one triamine unit (D), with a powder magnetic material made it possible to obtain a magnetic material which has the advantage of not only being stable during mixing, but also of not exhibiting high viscosity during mixing, which allows good processability.
- the molecular masses of the polyamides are not limited and the materials with magnetic charges obtained are ductile.
- the copolymer consists of at least one unit (A), at least one monocarboxylic acid unit (B), at least one diamine unit (C), at least one triamine unit (D), and optionally at least one polyetheramide unit (E).
- the copolymer has a rate of acid chain ends of less than 10 peq/g.
- the copolymer has a content of amine chain ends of less than 80 peq/g.
- the copolymer has a level of acid chain ends lower than 10 peq/g and a level of amine chain ends lower than 80 peq/g.
- the acid and amine chain ends can be determined by potentiometry or by NMR.
- the acidity is measured according to the following method. Ig of polyamide is dissolved in 80 mL of hot benzyl alcohol. The sample is then cooled. Then, it is assayed by potentiometry using a Metrohm titrator (888 or 716) with a combined pH electrode, with a solution of tetrabutylammonium hydroxide at 0.02N. The curve potential according to the volume gives a jump with an equivalent volume from which, one calculates the ends of acid chains thanks to the following formula: [Math 1] Veq x [TSAOH1
- Veq designates the equivalent volume obtained through potentiometric dosing
- TAAOH denotes the concentration of the tetrabutylammonium hydroxide solution, i.e. 0.02 N
- m denotes the mass of the sample, i.e. lg.
- This method doses both the ends of the acid chain and the GH3R04 introduced into the composition. Knowing the quantity of H3P04 introduced into the composition, the proportion of acid chain ends is deduced therefrom.
- the ends of the amine chain are assayed by potentiometry.
- Unit A is a semi-crystalline or amorphous polyamide.
- a semi-crystalline polyamide within the meaning of the invention, designates a polyamide which has a glass transition temperature in DSC according to the ISO 11357-2: 2013 standard as well as a melting temperature (Tf) in DSC according to the ISO standard. 11357-3:2013.
- An amorphous polyamide within the meaning of the invention, denotes an amorphous transparent polyamide having only a glass transition temperature (no melting temperature (Tm)), or a very slightly crystalline polyamide having a glass transition temperature and a fusion such as the enthalpy of crystallization during the cooling step at a rate of 20K/min in differential scanning calorimetry (“Differential Scanning Calorimetry” DSC) measured according to ISO 11357-3: 2013 is less than 30 J/g, in particular less than 20 J/g, preferably less than 15 J/g.
- the glass transition temperature (Tg) measured by DSC at a heating rate of 20 K/min according to standard ISO 11357-1:2009 and ISO 11357-2:2013 for these polyamides is greater than 75°C.
- polyamide means a homopolyamide or a copolyamide. It is understood that it may be a mixture of aliphatic polyamides.
- the average number of carbon atoms relative to the nitrogen atom is greater than or equal to 6.
- it is greater than or equal to 8.
- the number of carbon atoms per nitrogen atom is the average of the X unit and of the Y unit.
- the number of carbons per nitrogen is calculated according to the same principle. The calculation is carried out in molar proportion of the various amide units.
- the polyamide unit is derived from the polycondensation of at least one lactam, or at least one aminocarboxylic acid, or at least one diamine with at least one dicarboxylic acid.
- the semi-crystalline polyamide is obtained from the polycondensation of at least one aminocarboxylic acid comprising from 6 to 18 carbon atoms, preferentially from 8 to 12 carbon atoms, more preferentially 10 to 12 carbon atoms.
- 6-aminohexanoic acid 7-aminoheptanoic acid, 8-aminooctanoic acid, 9-aminononanoic acid, 10-aminodecanoic acid, 11-aminoundecanoic acid and 12-aminododecanoic acid, 13-aminotridecanoic acid, 14-aminotetradecanoic acid, 15-aminopentadecanoic acid, 16-aminohexadecanoic acid, 17-aminoheptadecanoic acid, 18-aminooctadecanoic acid.
- it is obtained from the polycondensation of a single aminocarboxylic acid.
- the semi-crystalline polyamide is obtained from the polycondensation of at least one lactam comprising from 6 to 18 carbon atoms, preferentially from 8 to 12 carbon atoms, more preferentially from 10 to 12 carbon atoms.
- it is obtained from the polycondensation of a single lactam.
- the semi-crystalline polyamide is obtained from the polycondensation of at least one diamine comprising from 4 to 36 carbon atoms, advantageously from 6 to 18 carbon atoms, advantageously from 6 to 12 carbon atoms, advantageously from 10 to 12 carbon atoms and at least one dicarboxylic acid comprising from 4 to 36 carbon atoms, advantageously from 6 to 18 carbon atoms, advantageously from 6 to 12 carbon atoms, advantageously from 8 to 12 carbon atoms.
- the diamine used to obtain this repeating unit XY can be an aliphatic or alkylaromatic diamine.
- the aliphatic diamine has a linear main chain comprising at least 4 carbon atoms.
- This linear main chain may, where appropriate, contain one or more methyl and/or ethyl substituents; in this last configuration, one speaks of "branched aliphatic diamine".
- the aliphatic diamine is called “linear aliphatic diamine”.
- the aliphatic diamine used to obtain this repeating unit XY comprises from 4 to 36 carbon atoms, advantageously from 4 to 18 carbon atoms, advantageously from 6 to 18 carbon atoms, advantageously from 6 to 14 carbon atoms.
- this diamine is a linear aliphatic diamine, it then has the formula H2N-(CH2)x-NH2 and can be chosen, for example, from butanediamine, pentanediamine, hexanediamine, heptanediamine, octanediamine, nonanediamine , decanediamine, undecanediamine, dodecanediamine, tridecanediamine, tetradecanediamine, hexadecanediamine, octadecanediamine and octadecanediamine.
- the linear aliphatic diamines which have just been mentioned can all be bioresourced within the meaning of standard ASTM D6866.
- this diamine is a branched aliphatic diamine, it may in particular be 2-methylpentanediamine, 2-methyl-1,8-octanediamine or trimethylene (2,2,4 or 2,4,4) hexanediamine.
- the alkylaromatic diamine can be chosen from 1,3-xylylene diamine and 1,4-xylylene diamine.
- the dicarboxylic acid can be chosen from aliphatic, linear or branched dicarboxylic acids.
- the dicarboxylic acid can be aliphatic, cycloaliphatic or aromatic.
- the dicarboxylic acid is aliphatic and linear, it can be chosen from succinic acid (4), pentanedioic acid (5), adipic acid (6), heptanedioic acid (7), octanedioic acid (8), azelaic acid (9), sebacic acid (10), undecanedioic acid (11), dodecanedioic acid (12), brassylic acid (13), tetradecanedioic acid ( 14), hexadecanedioic acid (16), octadecanedioic acid (18), octadecanedioic acid (18), eicosanedioic acid (20), docosanedioic acid (22).
- the dicarboxylic acid when it is cycloaliphatic, it may comprise the following carbon skeletons: norbornyl methane, cyclohexane, cyclohexylmethane, dicyclohexylmethane, dicyclohexylpropane, di(methylcyclohexyl) or di(methylcyclohexyl)propane.
- the dicarboxylic acid is aromatic, it can be chosen from terephthalic acid (denoted T), isophthalic acid (denoted I) and a naphthalenic acid denoted N).
- the semi-crystalline aliphatic polyamide is obtained from a mixture of these three variants.
- the polyamide unit is derived from the polycondensation of at least one lactam, or of at least one aminocarboxylic acid, or of at least one aliphatic diamine with at least one aliphatic dicarboxylic acid.
- said polyamide is a semi-crystalline aliphatic polyamide
- said semi-crystalline aliphatic polyamide is chosen from PA410, PA510,
- PA512 PA514, PA610, PA612, PA1010, PA1012, PA1212, PA1014, PAU and PA12, in particular PA1010, PA1012, PA1212, PAU, PA12.
- the semi-crystalline aliphatic polyamide is chosen from PA6, PA66, PAU and PA12 or a mixture thereof or a copolyamide thereof.
- said semi-crystalline aliphatic polyamide is chosen from PAU and PA12, in particular PAU.
- a single semi-crystalline polyamide is present in the composition.
- the amorphous polyamide is a polyamide of formula X1Y1 or W/XY in which:
- - W is an aliphatic repeating unit chosen from a unit obtained from the polycondensation of at least one amino acid, a unit obtained from the polycondensation of at least one lactam and a unit obtained from the polycondensation of at least one at least one aliphatic diamine and at least one aliphatic diacid,
- - XI is at least one cycloaliphatic diamine
- -Y1 is at least one dicarboxylic acid, said diacid being chosen from an aliphatic diacid, linear or branched, a cycloaliphatic diacid and an aromatic diacid, said diamine XI and said diacid Y1 comprising from 4 to 36 carbon atoms, advantageously from 4 to 18 carbon atoms, advantageously from 6 to 18 carbon atoms, advantageously from 6 to 14 carbon atoms.
- the amorphous polyamide is a polyamide of formula W/XY.
- the amino acid, the lactam, the diamine and the dicarboxylic acid constituting the unit W are as defined for the semi-crystalline aliphatic polyamide defined above.
- the amorphous polyamide can be a homopolyamide or a copolyamide.
- the molar proportions of diamine XI and of dicarboxylic acid Y1 are preferentially stoichiometric.
- the cycloaliphatic diamine XI can be chosen, for example, from bis(3,5-dialkyl-4-aminocyclohexyl)-methane, bis(3,5-dialkyl-4-aminocyclohexyl)ethane, bis(3,5-dialkyl- 4-aminocyclohexyl)-propane, bis(3,5-dialkyl-4-aminocyclo-hexyl)-butane, bis-(3-methyl-4-aminocyclohexyl)-methane or 3'-dimethyl-4,4'- diamino-dicyclohexyl-methane commonly referred to as "BMACM” or "MACM” (and denoted B below), p-bis(aminocyclohexyl)-methane commonly referred to as "PACM” (and denoted P below), isopropylidenedi( cyclohexylamine) commonly called "PACP", iso
- the dicarboxylic acid Y1 can be chosen from aliphatic, linear or branched dicarboxylic acids, cycloaliphatic dicarboxylic acids and aromatic dicarboxylic acids. When the dicarboxylic acid Y1 is aliphatic and linear, it is as defined above for the diacid Y.
- the dicarboxylic acid Y1 When the dicarboxylic acid Y1 is cycloaliphatic, it may comprise the following carbon skeletons: norbornyl methane, cyclohexane, cyclohexylmethane, dicyclohexylmethane, dicyclohexylpropane, di(methylcyclohexyl) or di(methylcyclohexyl)propane.
- the dicarboxylic acid Y1 is aromatic, it can be chosen from terephthalic acid (denoted T), isophthalic acid (denoted I) and a naphthalenic acid.
- the dicarboxylic acid Y1 is aromatic, and it can be chosen from terephthalic acid (denoted T), isophthalic acid (denoted I).
- the amorphous polyamide is partially or totally bioresourced.
- the amorphous polyamide is chosen from 11/B10, 12/B10, 11/P10, 12/P10, 11/BI/BT, 12/BI/BT, 11/PI/BT, 12/PI/BT, 11/ PI/PT, 12/PI/PT, 11/BI, 12/BI, 11/PI and 12/PI, especially 11/B10.
- the monocarboxylic acid unit B is the monocarboxylic acid unit B
- the monocarboxylic acid can be an aliphatic monocarboxylic acid, an alicyclic acid, a monounsaturated fatty acid or an aromatic monocarboxylic acid.
- Aliphatic monocarboxylic acid is an acid with 2 to 18 carbon atoms.
- aliphatic monocarboxylic acid examples include acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, caproic acid, capric acid, lauric acid, tridecyl acid, myristic acid, palmitic acid, stearic acid and pivalic acid.
- the alicyclic monocarboxylic acid is for example cyclohexanecarboxylic acid
- aromatic monocarboxylic acid examples include benzoic acid, toluic acid, a-/b-naphthalene carboxylic acid, methylnaphthalene carboxylic acid and phenylacetic acid and their derivatives.
- the monounsaturated fatty acid is for example palmitoleic acid, oleic acid and undecylenic acid.
- the monocarboxylic acid is an aliphatic monocarboxylic acid, in particular chosen from isobutyric acid, tridecyl acid, myristic acid, palmitic acid, stearic acid and pivalic acid.
- the monocarboxylic acid is a monounsaturated fatty acid, in particular undecylenic acid.
- Diamine C can be an aliphatic diamine as defined for X above, in particular nonamethylenediamine, decamethylenediamine and dodecamethylenediamine, a cycloaliphatic diamine can be cyclohexanediamine, methylcyclohexanediamine or a cycloaliphatic diamine as defined for XI above , or an aromatic diamine as defined for X above.
- said diamine is an aliphatic diamine, in particular hexamethylene diamine.
- Triamine D can be an aliphatic triamine such as diethylene triamine (DETA), Bis(Hexamethylene)triamine or a polyethertriamine.
- the polyethertriamine is for example of the following formula (I):
- the triamine is chosen from diethylene triamine (DETA), Bis(Hexamethylene)triamine or a polyethertriamine.
- the aliphatic triamine is diethylene triamine (DETA).
- the polyetheramide unit is derived from the polycondensation of at least one polyetherdiamine with at least one aliphatic dicarboxylic acid.
- the copolymer consists of:
- the copolymer consists of: - at least one unit (A) chosen from a semi-crystalline aliphatic polyamide unit,
- the copolymer consists of:
- the copolymer consists of:
- the copolymer consists of:
- the copolymer consists of:
- the copolymer consists of: - at least one unit (A) chosen from a semi-crystalline aliphatic polyamide unit,
- the copolymer consists of:
- the copolymer consists of:
- the copolymer consists of:
- the copolymer consists of:
- the molar proportion of unit A is equal to twice the molar proportion of the sum of unit B and of unit C.
- the semi-crystalline polyamide is PAU.
- the molar proportion of unit A is equal to twice the molar proportion of the sum of unit B and of unit C and the semi-crystalline polyamide is PAU.
- the copolymer consists of:
- the ten variants defined above are also possible.
- the molar proportion of unit A is equal to twice the molar proportion of the sum of unit B and of unit C.
- the semi-aromatic semi-crystalline polyamide is chosen from PA6I/6T, PA11/10T, PA BACT/6T and PA11/BACT/6T, PA BACT/10T, PA11/BACT/10T and PA MXD10.
- the copolymer consists of:
- the copolymer consists of:
- the ten variants defined for the first and second embodiments also exist except that the polyamide is an amorphous polyamide.
- the molar proportion of unit A is equal to twice the molar proportion of the sum of unit B and of unit C.
- the amorphous polyamide is chosen from B10, P10, B12, P12, B14, P14, 11/B10 and copolyamides such as 6/66/12.
- the amorphous polyamide is chosen from B10, P10, B12, P12, B14, P14 and 11/B10.
- P denotes bis(4-aminocyclohexyl)-methane, also referred to as PACM or P in the description.
- B denotes bis(4-amino-3-methylcyclohexyl)methane, also referred to as MACM or BMACM or B in the description.
- 10 denotes decanedioic acid
- 12 denotes dodecanedioic acid
- 14 denotes tetradecanedioic acid.
- the magnetic composite material includes:
- the magnetic composite material consists of:
- the magnetic powder of the magnetic composite material defined above is chosen from iron-nickel-aluminum alloys, ferrites, samarium-cobalt alloys, neodymium-iron-boron alloys, manganese-aluminum-carbon and samarium- iron-nitrogen.
- the magnetic powder of the magnetic composite material defined above is chosen from iron-nickel-aluminum alloys, ferrites, samarium-cobalt alloys, neodymium-iron-boron alloys and manganese-aluminum-carbon.
- the magnetic metal powder can be pre-treated with a coupling agent to improve the adhesion of the powder with the polyamide resin.
- Examples of coupling agent are silane compounds, titanate compounds, aluminum compounds, chromium compounds, methacrylate compounds and organic phosphorus compounds such as phosphite esters.
- the coupling agent is present at 0.1 to 5% by weight.
- the additives may be any additive well known to those skilled in the art and in particular a catalyst, in particular H3P04 and H3P02, an antioxidant, in particular of the phenolic type or of the phosphoric type or a hindered amine type light stabilizer (HALS) , an anti UV and an anti foam agent.
- a catalyst in particular H3P04 and H3P02
- an antioxidant in particular of the phenolic type or of the phosphoric type or a hindered amine type light stabilizer (HALS)
- HALS hindered amine type light stabilizer
- talc, graphite and magnesium oxide are excluded from the magnetic composite material.
- the Sm-Fe-N is excluded from the magnetic powders and therefore from the magnetic composite material.
- a dendritic silane-polyamide-amine polymer is excluded from the magnetic composite material.
- a lubricant is excluded from the additives and therefore from the magnetic composite material.
- the four embodiments defined above can also be combined two by two or even three embodiments out of the four can be combined or even the four embodiments defined above are all four combined.
- the coupling agent is present at 0.1 to 5% by weight.
- the present invention relates to a method for preparing a magnetic composite material as defined above, characterized in that it comprises a step of mixing a copolymer as defined above in the form of granules, with a magnetic powder, in particular as defined above, and optionally at least one coupling agent and at least one additive.
- said process for preparing a magnetic composite material comprises a step of extruding and granulating the mixture of magnetic powder with said copolymer in the form of granules and optionally the coupling agent and/or the additive .
- Example 1 Preparation of the copolymers of the invention and of comparative copolymers
- Example 2 analysis of the acidity and the basicity of the copolymers of example 1
- Example 3 rheological analysis of the magnetic composite materials obtained by mixing the comparative copolymers and of the invention with an NdFeB ferrite powder (5/95 weight/weight)
- the polymers of examples 11, 12 and C1 to C4 are ground in liquid nitrogen and mixed with the magnetic fillers. After drying at 90° C. under vacuum for 12 hours, the samples are placed in a rheometer (MCR301) to measure the viscosity in the molten state. A time sweep of 30 min is carried out at 1 Hz, 210° C. under nitrogen, between 2 parallel planes of 25 mm in diameter.
- the initial viscosity corresponds to the measurement after starting the rheometer: tO + 10s for recording the measurement.
- the viscosity after 30 minutes corresponds to the measurement after 30 minutes of scanning in the rheometer.
- Table 2 shows that the copolymers of the invention exhibit viscosity stability in contrast to the comparative examples.
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Abstract
Description
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/284,047 US20240158577A1 (en) | 2021-03-26 | 2022-03-24 | Polyamide composition for material |
| KR1020237036490A KR20230163458A (ko) | 2021-03-26 | 2022-03-24 | 재료용 폴리아미드 조성물 |
| JP2023558973A JP2024511194A (ja) | 2021-03-26 | 2022-03-24 | 材料のためのポリアミド組成物 |
| CN202280024387.7A CN117062855A (zh) | 2021-03-26 | 2022-03-24 | 用于材料的聚酰胺组合物 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FRFR2103065 | 2021-03-26 | ||
| FR2103065A FR3121146B1 (fr) | 2021-03-26 | 2021-03-26 | Composition polyamide pour materiau |
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| Publication Number | Publication Date |
|---|---|
| WO2022200738A1 true WO2022200738A1 (fr) | 2022-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2022/050547 Ceased WO2022200738A1 (fr) | 2021-03-26 | 2022-03-24 | Composition polyamide pour materiau |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20240158577A1 (fr) |
| EP (1) | EP4063428B1 (fr) |
| JP (1) | JP2024511194A (fr) |
| KR (1) | KR20230163458A (fr) |
| CN (1) | CN117062855A (fr) |
| FR (1) | FR3121146B1 (fr) |
| WO (1) | WO2022200738A1 (fr) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006344768A (ja) * | 2005-06-09 | 2006-12-21 | Sumitomo Metal Mining Co Ltd | ボンド磁石用組成物、その製造方法、およびそれを用いたロータ磁石並びにブラシレスモータ |
| WO2014050631A1 (fr) | 2012-09-25 | 2014-04-03 | 宇部興産株式会社 | Composition et article moulé fabriqué à partir de celle-ci |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1591468B1 (fr) * | 2004-04-26 | 2016-10-19 | Arkema France | Reactifs thermo-adhesifs a base des copolyamides ou copolyamide-bloc-polyethers reticulables |
| JP2011219635A (ja) * | 2010-04-09 | 2011-11-04 | Ube Industries Ltd | 磁性材樹脂複合体成形用ポリアミド樹脂組成物、及びそれよりなる磁性材樹脂複合材料 |
| FR2992968B1 (fr) * | 2012-07-06 | 2014-07-04 | Arkema France | Poudre de polyamide hydrodispersible |
| CN105899579B (zh) * | 2013-11-13 | 2019-05-21 | 罗地亚经营管理公司 | 聚酰胺组合物 |
| JP6780693B2 (ja) * | 2018-01-22 | 2020-11-04 | 日亜化学工業株式会社 | ボンド磁石およびボンド磁石用コンパウンドの製造方法 |
-
2021
- 2021-03-26 FR FR2103065A patent/FR3121146B1/fr active Active
-
2022
- 2022-03-24 WO PCT/FR2022/050547 patent/WO2022200738A1/fr not_active Ceased
- 2022-03-24 JP JP2023558973A patent/JP2024511194A/ja active Pending
- 2022-03-24 KR KR1020237036490A patent/KR20230163458A/ko active Pending
- 2022-03-24 US US18/284,047 patent/US20240158577A1/en active Pending
- 2022-03-24 CN CN202280024387.7A patent/CN117062855A/zh active Pending
- 2022-03-24 EP EP22163992.5A patent/EP4063428B1/fr active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006344768A (ja) * | 2005-06-09 | 2006-12-21 | Sumitomo Metal Mining Co Ltd | ボンド磁石用組成物、その製造方法、およびそれを用いたロータ磁石並びにブラシレスモータ |
| WO2014050631A1 (fr) | 2012-09-25 | 2014-04-03 | 宇部興産株式会社 | Composition et article moulé fabriqué à partir de celle-ci |
Non-Patent Citations (1)
| Title |
|---|
| KIRK-OTHMER: "Encyclopaedia of Chemical Technology", 1992, article "Cycloaliphatic Amines", pages: 386 - 405 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3121146A1 (fr) | 2022-09-30 |
| EP4063428B1 (fr) | 2023-12-20 |
| KR20230163458A (ko) | 2023-11-30 |
| FR3121146B1 (fr) | 2023-02-24 |
| JP2024511194A (ja) | 2024-03-12 |
| US20240158577A1 (en) | 2024-05-16 |
| CN117062855A (zh) | 2023-11-14 |
| EP4063428A1 (fr) | 2022-09-28 |
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