WO2017207025A1 - Procédé de fabrication de particules métalliques à déformation plastique - Google Patents

Procédé de fabrication de particules métalliques à déformation plastique Download PDF

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Publication number
WO2017207025A1
WO2017207025A1 PCT/EP2016/062244 EP2016062244W WO2017207025A1 WO 2017207025 A1 WO2017207025 A1 WO 2017207025A1 EP 2016062244 W EP2016062244 W EP 2016062244W WO 2017207025 A1 WO2017207025 A1 WO 2017207025A1
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Prior art keywords
metal particles
polyalkylene glycol
glycol
weight
metal
Prior art date
Application number
PCT/EP2016/062244
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German (de)
English (en)
Inventor
Frank Terra
Richard Engelhardt
Original Assignee
Eckart 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 Eckart Gmbh filed Critical Eckart Gmbh
Priority to PCT/EP2016/062244 priority Critical patent/WO2017207025A1/fr
Publication of WO2017207025A1 publication Critical patent/WO2017207025A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/62—Metallic pigments or fillers
    • C09C1/64—Aluminium
    • C09C1/644—Aluminium treated with organic compounds, e.g. polymers
    • C09C1/646—Aluminium treated with organic compounds, e.g. polymers concomitant with mechanical comminution, shaping or abrasion of the particles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0241—Containing particulates characterized by their shape and/or structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/26—Aluminium; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/86—Polyethers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q3/00—Manicure or pedicure preparations
    • A61Q3/02—Nail coatings
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/02—Elements
    • C04B22/04—Metals, e.g. aluminium used as blowing agent
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/62—Metallic pigments or fillers
    • C09C1/622—Comminution, shaping or abrasion of initially uncoated particles, possibly in presence of grinding aids, abrasives or chemical treating or coating agents; Particle solidification from melted or vaporised metal; Classification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • B22F1/102—Metallic powder coated with organic material

Definitions

  • JP 201 1256094 A the problem of cracking in aerated concrete parts of greater thickness to be solved or at least reduced.
  • WO 2013/01421 1 A2 deals with the provision of an improved metal particle material for coating processes such as
  • the alkylene glycol units of the at least one polyalkylene glycol are selected from ethylene glycol and propylene glycol,
  • At least 50 mol% of the alkylene glycol units are ethylene glycol units, the average molar mass of the at least one polyalkylene glycol is at least 1000, preferably at least 1300, more preferably at least 1400, even more preferably at least 2900, and the at least one polyalkylene glycol is solid under standard conditions. Standard conditions are conditions defined by IUPAC (25 ° C, 1 bar).
  • the term "solid" refers to the state of aggregation, that is to say that, in contrast to a gas or a liquid, the substance in question does not deform indefinitely, but is dimensionally stable.
  • a vessel such as a 100 ml beaker (5 cm outside diameter) can be filled with a corresponding substance without settling under
  • the inventive method is accompanied by a plastic deformation of the particles at least in one spatial direction, so that the
  • the term "average molecular weight" of a polymer in the present invention means the weight average molecular weight The determination of this weight average molecular weight can be determined by methods familiar to one skilled in the art or combinations of such methods Methods using light scattering proved to be very advantageous, such as multi-angle light scattering.
  • the present invention relates to metal particles, wherein the metal particles were plastically deformed using at least one polyalkylene glycol,
  • the alkylene glycol units of the at least one polyalkylene glycol are selected from ethylene glycol and propylene glycol,
  • the present invention relates to the use of the metal particles according to the invention for hydrogen evolution, in a cosmetic, in a plastic or in a coating agent. Be particularly advantageous
  • coating compositions are preferably comprising the metal particles according to any one of claims 10 to 12 or any of aspects 22 to 32, the metal particle compositions according to claim 13 or any of aspects 33 to 36 or metal particles, which by means of the method according to one of claims 1 to 9 or a Aspects 1 to 21 were made.
  • the present invention relates to an article comprising
  • metal particles or metal particle compositions according to the invention. Particularly preferred in this case are the metal particles, as in one of Claims 10 to 12 or any of aspects 22 to 32, and metal particle compositions as described in claim 13 or any one of aspects 33 to 36. Surprisingly, it has been shown that by means of the invention
  • spect ratio for the purposes of the present invention denotes the ratio of mean particle diameter (d 50 ) to average particle thickness (h 50 ).
  • d 50 or else "d 5 o value” denotes the value at which 50% of the particles in the cumulative frequency distribution have a diameter which is equal to or less than this value
  • Particle size analyzer HELOS of the company Sympatec GmbH, Clausthal-Zellerfeld, Germany performed.
  • the dispersion of a dry powder can take place here with a dispersion unit of the Rodos T4.1 type at a primary pressure of, for example, 4 bar.
  • the size distribution curve of the particles can be measured, for example, using a device from Quantachrome (device: Cilas 1064) in accordance with the manufacturer's instructions.
  • 1, 5 g of the powdery coating material are dispersed in about 100 ml of ethanol, 300 seconds in an ultrasonic bath (device: Sonorex IK 52, Fa. Bandelin) treated and then by means of a Pasteur pipette in the
  • the term "alloy" for the purposes of the present invention means that the corresponding specified metal constitutes at least 50% by weight, more preferably at least 70% by weight, even more preferably at least 80% by weight, of the alloy, based in each case on
  • the thickness of the particles can be determined, for example, by means of SEM as follows: The platelet-shaped particles according to the invention are first of all treated with acetone
  • a common in electron microscopy resin for example TEMPFIX (Gerhard Neubauer Chemikalien, D-48031 Weg, Germany), is applied to a sample plate and heated on a hot plate until softening. Subsequently, the sample tray is removed from the hot plate and the particles are sprinkled on the softened resin. As a result of the cooling, the resin solidifies again and the scattered particles can - due to the interplay between adhesion and gravity - be prepared almost vertically and fixed on the sample tray. As a result, the particles are in the
  • the relative frequencies make the
  • the total sum of the weight percent of all components for example, the metal particle composition, the metal particles, the polyalkylene glycols, or the like, must always be 100% by weight in total. Necessarily, the sum of the individual constituents can never exceed 100% by weight, based on their total weight, nor can the sum of the individual weights of all constituents be less than 100% by weight. Furthermore, constituents which do not necessarily constitute a final list of all constituents may naturally represent less than 100% by weight in total.
  • the thicknesses of the particles can also be counted, for example, by means of cross sections of painted samples.
  • this method should only work for a very good plane-parallel
  • the particles may be oriented in cross-section with an azimuthal angle of inclination, which, however, is not recognizable to the observer. This leads systematically to the measurement of higher thicknesses.
  • "substantially" at least 95%, preferably at least 99%, means. As far as a material feature is concerned, such as the amount of a constituent, this means wt%.
  • the term "polymers” also encompasses oligomers
  • the polymers according to the invention such as, for example, cellulose derivatives, polysaccharides, polyvinyls, polyacrylates and polyethylene glycols have at least 10 monomer units, more preferably at least 20 monomer units, even more preferably at least 60 monomer units. is understood within the meaning of the present invention, a small-sized, solid form of a substance.
  • the average particle size (d 50 ) of the powders according to the invention is preferably at most 150 ⁇ m, more preferably at most 123 ⁇ m, even more preferably at most 110 ⁇ m.
  • Quantachrome device: Cilas 1064
  • Coating material dispersed in about 100 ml of ethanol and then added using a Pasteur pipette in the sample preparation cell of the meter and measured several times. In particular, no dispersion takes place in an ultrasonic bath and no addition of dispersing additives. From the individual
  • the evaluation of the scattered light signals is carried out according to the Fraunhofer method.
  • a reference value for typical applications such as the aerated concrete is obtained, which draws an inference to the particle or agglomerate size of the metal particles in the
  • the alkylene glycol units of the at least one polyalkylene glycol are selected from ethylene glycol and propylene glycol,
  • Metal particles are used, however, it has proved to be particularly advantageous for the provision of very inexpensive metal particles, as they For example, in the production of aerated concrete are required. Surprisingly, even simple coatings are not suitable for achieving this
  • the metal particles used are preferably at least 90 wt .-%, more preferably at least 95 wt .-%, even more preferably at least 99 wt .-%, uncoated metal particles, each based on the Total weight of metal particles. In particular, it is preferred that all metal particles used are uncoated.
  • the term "uncoated" in the sense of the present invention means that the corresponding particles do not have at least substantially enveloping coating, preferably enveloping, coating around the particle, In particular, in the field of metal pigments, it is often preferred to apply highly cross-crosslinked, at least substantially enveloping coatings To provide high protection against external influences or improved compatibility with the
  • Such coatings are metal oxide coatings and polymer coatings. Of course you can
  • uncoated particles still include substances such as grinding aids such as stearic acid or oleic acid on the surface thereof.
  • the plastically deformed metal particles have an aspect ratio of at least 10, more preferably at least 20, even more preferably at least 50.
  • the method according to the invention therefore comprises a
  • Phosphoric acid compounds such as phosphoric acids, phosphoric acid esters and
  • aluminum particles are used.
  • advantageous alloy constituents are silicon and boron.
  • the average molecular weight of the at least one polyalkylene glycol is at most 53,000, more preferably at most 17,000, more preferably at most 13,000, more preferably at most 9,000, more preferably at most 8,000, even more preferably at most 4750. Allow these polyalkylene glycols
  • the alk are independently selected from ethylene units and
  • the weight average of n is at least 30.
  • ethylene units is understood to mean -CH 2 -CH 2 units according to the invention.
  • propylene units is understood according to the invention to mean -CH 2 -C (H) (CH 3 ) - or -C (H) (CH 3 ) - CH 2 units understood.
  • the mass mean of n is understood as the chain length averaged for a polyalkylene glycol, which can be calculated from the average molecular weight. If various polyalkylene glycols are present, they are previously separated by methods such as GPC. Further, it is preferable that the aliphatic groups are selected from the group of the alkyl groups and alkenyl groups, more preferably from the group of the alkyl groups and allyl groups, still more preferably from the group of the alkyl groups.
  • R 1 are unsubstituted and besides H
  • (meth) acrylate groups for example, be selected from unsubstituted aliphatic groups and unsubstituted (meth) acrylate groups.
  • (meth) acrylate groups is understood to mean methacrylate groups and acrylate groups.
  • the (meth) acrylate functionality appears to offer advantages in incorporation into certain polymer-containing systems. For many other applications, however, it is advantageous that no such reactive group is present. At further
  • R 1 are independently selected from the group consisting of H and unsubstituted C 1 -C 4 aliphatic groups, more preferably from the group consisting of H and unsubstituted C1-C4 alkyl groups.
  • At least one R 1 of the at least one polyalkylene glycol is H.
  • both R 1 are H.
  • the weight average of n is at least 60, more preferably at least 70, even more preferably at least 75.
  • the weight average of n is at most 200, more preferably at most 160, even more preferably at most 140.
  • the at least one polyalkylene glycol has a melting point or upper limit of the melting point range of at most 75 ° C, more preferably at most 70 ° C, even more preferably at most 68 ° C.
  • polyalkylene glycols can be added whose average molecular weight is at least 1000 and wherein at least 50 mol% of the alkylene glycol units are propylene glycol units.
  • the ratio of polyalkylene glycols having an average molecular weight of at least 1000 and more than 50 mol% of propylene glycol units as
  • the alkylene glycol units of the at least one polyalkylene glycol are at least 60 molar %, more preferably at least 75 mole%, even more preferably at least 92 mole%, of ethylene glycol units are, based on the total moles of alkylene glycol units.
  • these are preferably pure polyethylene glycols.
  • polyalkylene glycol / "polyethylene glycol” / “polypropylene glycol” refers to polymers of corresponding monomers, the end groups optionally being able to be substituted
  • polyalkylene glycol encompasses the polyethylene glycols and polypropylene glycols, as well as copolymers of ethylene glycol and propylene glycol.
  • Metal particles are platelet-shaped.
  • platelet-shaped means that corresponding particles have an aspect ratio of at least 10. Particles having an aspect ratio of less than 10 are referred to as “non-platelet-shaped" in the context of the present invention.
  • the metal of the metal particles becomes at least
  • the metal of the metal particles comprises at most 5 wt%, more preferably at most 2 wt%, more preferably at most 1 wt%, metals selected from the group consisting of silver, palladium, platinum, gold, Mixtures thereof and alloys thereof.
  • the metal particles are preferably selected from uncoated metal particles and coated metal particles, wherein the amount of coating of the coated metal particles is at most 15 wt .-%, preferably at most 12 wt .-%, more preferably at most 10 wt .-%, based on the total weight of the coated metal particles.
  • Polyalkylene glycols are included.
  • the amount of the at least one polyalkylene glycol is therefore preferably at most 5.7% by weight, more preferably at most 4.6% by weight, even more preferably at most 3.3% by weight, based in each case on the weight of Metal particles, whereby also possibly due the milling of existing decomposition products of at least one
  • Polyalkylene glycols are included.
  • Polyalkylene glycol in the range of 1 wt .-% to 5.7 wt .-%, more preferably in the range of 1, 2 wt .-% to 4.6 wt .-%, even more preferably in the range of 1, 5 wt. % to 3.3% by weight, based in each case on the weight of the metal particles, wherein any decomposition products of the at least one polyalkylene glycol which may also be present as a result of the milling are also included.
  • the metal particles according to the invention consist essentially of elemental metal, at least one
  • the metal particles of the invention consist of at least 90% by weight, more preferably at least 95% by weight, even more preferably at least 98% by weight, of elemental metal, at least one polyalkylene glycol and optionally decomposition products of the at least existing as a result of the milling a polyalkylene glycol, wherein the at least one polyalkylene glycols is selected from polyalkylene glycols in which at least 50 mol% of the
  • Alkylene glycol units are ethylene glycol units
  • the average molecular weight of the polyalkylene glycols is at least 1000, preferably at least 1300, more preferably at least 1400, even more preferably at least 2900, and the at least one polyalkylene glycol is solid under standard conditions.
  • the metal of the metal particles is selected from the group consisting of aluminum, copper, iron, zinc, tin, titanium, chromium, silver, gold, vanadium, nickel, magnesium, alloys of the foregoing such as brass and steel and mixtures thereof, more preferably selected from the group consisting of aluminum, copper, iron, zinc, silver, alloys thereof, such as brass and steel and mixtures thereof, even more preferably from the group consisting of aluminum, iron, alloys thereof and mixtures thereof.
  • aluminum particles are used.
  • advantageous alloy constituents are silicon and boron.
  • the metal particles preferably have one
  • the present invention relates to metal particles by means of
  • the present invention relates to a metal particle composition comprising the metal particles according to the invention.
  • Polyalkylene glycol has occurred, the aforementioned indication refers to the weight comprising the decomposition products.
  • the amount of the at least one polyalkylene glycol is at most 5.2% by weight, more preferably at most 4.1% by weight, even more preferably at most 3.0% by weight, respectively based on the weight of the metal particles.
  • Such compositions are for example
  • Coating processes such as flame spraying, high-speed flame spraying, thermal plasma spraying, non-thermal plasma spraying and cold gas spraying.
  • the total weight of the metal particles and the at least one polyalkylene glycol is at least 90% by weight, more preferably at least 93% by weight, even more preferably at least 97% by weight, based in each case on
  • the solvent content of the metal particle compositions is at most 7% by weight, more preferably at most 5% by weight, even more preferably at most 2% by weight, based on the total weight of the metal particle composition.
  • Powders are preferably substantially solvent-free metal particle compositions.
  • such powders have less than 5 wt%, more preferably less than 2 wt%, even more preferably less than 1 wt%,
  • Pastes are typically obtained by pasting powders with solvents.
  • An advantage here is the reduction or even avoidance of one
  • the present invention relates to a coating agent or cosmetic comprising the metal particles according to the invention.
  • coating compositions are wet paints, powder coatings, coil coating paints and inks such as printing inks and inks.
  • a particularly advantageous application of the metal particles according to the invention is the use of the metal particles according to the invention, preferably aluminum particles, for hydrogen evolution. This can, for example, in the production of
  • Coating agents are incorporated.
  • coating compositions are wet paints, powder coatings and inks such as printing inks and inks.
  • the present invention relates to an article produced using the metal particles according to the invention or coated with a coating agent comprising the metal particles according to the invention.
  • a coating agent comprising the metal particles according to the invention.
  • the metal particles according to the invention can also be incorporated in a plastic material.
  • the metal particle-containing plastic material can be brought directly into the desired shape or subsequently by means of
  • the present invention preferably relates to a method for producing plastically deformed metal particles, wherein metal particles are ground using at least one polyalkylene glycol,
  • the alkylene glycol units of the at least one polyalkylene glycol are selected from ethylene glycol and propylene glycol,
  • the present invention relates to a process according to aspect 1, wherein the at least one polyalkylene glycol has a structure according to formula (I)
  • the alk are independently selected from ethylene units and propylene units, and
  • the weight average of n is at least 30.
  • the aliphatic groups are selected from the group of alkyl groups and alkenyl groups, more preferably from the group of alkyl groups and allyl groups, still more preferably from the group of alkyl groups.
  • the present invention relates to a process according to any of aspects 1 to 2, wherein at least one R 1 of the at least one polyalkylene glycol is H. Preferably both R 1 are H. According to one aspect, the present invention relates to a method according to any of aspects 1 to 3, wherein the weight average of n is at least 60, more preferably at least 70, even more preferably at least 75.
  • the present invention relates to a method according to any of aspects 1 to 4, wherein the weight average of n is at most 200, more preferably at most 160, even more preferably at most 140.
  • the present invention relates to a process according to any of aspects 1 to 5, wherein preferably the average molecular weight of the at least one polyalkylene glycol is at most 53,000, more preferably at most 17,000, more preferably at most 13,000, more preferably at most 9,000, more preferably at most 8,000, even more preferably at most 4750.
  • the present invention relates to a method according to any of aspects 1 to 6, wherein preferably the water solubility of the at least one polyalkylene glycol is at least 300 g / l, more preferably at least 370 g / l, even more preferably at least 420 g / l ,
  • the present invention relates to a method according to one of the aspects 1 to 7, wherein preferably the HLB value of the at least one
  • the present invention relates to a process according to any one of aspects 1 to 8, wherein the amount of the at least one polyalkylene glycol is at least 0.9% by weight, more preferably at least 1.0% by weight, even more preferably at least 1 , 2 wt .-%, in each case based on the weight of the metal particles.
  • the present invention relates to a method according to any of aspects 1 to 9, wherein the amount of the at least one polyalkylene glycol is at most 5.7% by weight, more preferably at most 4.6% by weight, even more preferably at most 3 , 3 wt .-%, in each case based on the weight of the metal particles.
  • Polyethylene glycols is selected.
  • the present invention relates to a method according to any of aspects 1 to 12, wherein preferably a mixture comprising metal particles and at least one polyalkylene glycol is ground, wherein the total weight of the metal particles and the at least one polyalkylene glycol is at least 60% by weight, more preferred at least 68 wt .-%, more preferably at least 74 wt .-%, in each case based on the total weight of the mixture.
  • Embodiments consists of the mixture of metal particles and the at least one polyalkylene glycol.
  • the present invention relates to a method according to any of aspects 1 to 13, wherein preferably a mixture comprising metal particles and at least one polyalkylene glycol is ground, the total weight of the metal particles and the at least one polyalkylene glycol being at most 99.8% by weight, more preferably at most 99% by weight, more preferably at least 94% by weight, in each case based on the total weight of the mixture.
  • the present invention relates to a process according to any of aspects 1 to 14, wherein preferably the at least one polyalkylene glycol has a melting point or lower limit of the melting point range of at least 35 ° C, more preferably at least 42 ° C, even more preferably at least 51 ° C, has.
  • the present invention relates to a method according to any of aspects 1 to 15, wherein preferably the at least one polyalkylene glycol has a melting point or upper limit of the melting point range of at most 75 ° C, more preferably at most 70 ° C, even more preferably at most 68 ° C, has.
  • the present invention relates to a method according to any one of aspects 1 to 18, wherein preferably the metal of the metal particles is selected from the group consisting of aluminum, copper, iron, zinc, tin, titanium, chromium, silver, gold, vanadium , Nickel, magnesium, alloys of the foregoing such as brass and steel, and mixtures thereof, more preferably selected from the group consisting of aluminum, copper, iron, zinc, silver, alloys thereof, such as
  • Brass and steel and mixtures thereof more preferably from the group consisting of aluminum, iron, alloys thereof and mixtures thereof.
  • At least 50 mol% of the alkylene glycol units are ethylene glycol units, the average molecular weight of the at least one polyalkylene glycol is at least 1000, preferably at least 1300, more preferably at least 1400, even more preferably at least 2900, and the at least one polyalkylene glycol is solid under standard conditions.
  • Polyalkylene glycol is at most 53,000, more preferably at most 17,000, more preferably at most 13,000, more preferably at most 9,000, more preferably at most 8,000, even more preferably at most 4750.
  • the present invention relates to metal particles according to any of aspects 22 to 26, wherein preferably the amount of the at least one
  • Polyalkylene glycol in the range of 0.6 wt .-% to 12 wt .-%, more preferably in the range of 0.8 wt .-% to 7.0 wt .-%, even more preferably in the range of
  • aluminum particles are used.
  • the present invention relates to metal particles according to one of the aspects 22 to 31, wherein preferably the metal particles were produced by means of the method according to one of the aspects 1 to 21.
  • the present invention relates to a coating comprising metal particles produced by the method according to any one of aspects 1 to 21, metal particles according to any of aspects 22 to 32 or a metal particle composition according to any one of aspects 33 to 36.
  • Example 1 Polyglycol M 4000 (polyethylene glycol monomethyl ether of average molecular weight in the range of 3500-4770)

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Abstract

La présente invention concerne un procédé de fabrication de particules métalliques à déformation plastique à l'aide d'un adjuvant. La présente invention concerne en outre des particules métalliques qui ont été broyées à l'aide de cet adjuvant, ainsi que des compositions de particules métalliques les contenant. La présente invention concerne par ailleurs l'utilisation desdites particules métalliques et desdites compositions de particules métalliques.
PCT/EP2016/062244 2016-05-31 2016-05-31 Procédé de fabrication de particules métalliques à déformation plastique WO2017207025A1 (fr)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1016893A (en) * 1961-09-08 1966-01-12 Aluminium Francais Aluminium containing pastes
US5280086A (en) * 1990-02-06 1994-01-18 Sanyo Chemical Industries, Ltd. Moldable composition, process for producing sintered body therefrom and products from same
US5320673A (en) * 1992-05-15 1994-06-14 Basf Lacke+Farben Aktiengesellschaft Dispersants for pigments in waterborne coatings compositions
EP0962505A1 (fr) * 1998-06-05 1999-12-08 Silberline Manufacturing Co. Inc. Pâtes à base de pigments métalliques inhibés contenant des pigments de type molybdate et applicables à des compositions aqueuses de revêtement
JP2007224363A (ja) * 2006-02-23 2007-09-06 Sekisui Chem Co Ltd 焼結性無機微粒子分散ペースト組成物
WO2009156149A1 (fr) 2008-06-25 2009-12-30 Eckart Gmbh Mélange pigmentaire de pigments d'aluminium pvd à effet, et pigments d'aluminium minces à effet obtenus par broyage, procédé pour leur fabrication, et leur utilisation
JP2011256094A (ja) 2010-06-11 2011-12-22 Sumitomo Metal Mining Siporex Kk 軽量気泡コンクリート用アルミニウム粉末
WO2013014211A2 (fr) 2011-07-25 2013-01-31 Eckart Gmbh Utilisation de matériaux de revêtement pulvérulents à enrobage spécial et procédés de revêtement mettant en oeuvre de tels matériaux de revêtement
US8409345B1 (en) 2011-11-18 2013-04-02 Malaxit Gaseous concrete raw mixture

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1016893A (en) * 1961-09-08 1966-01-12 Aluminium Francais Aluminium containing pastes
US5280086A (en) * 1990-02-06 1994-01-18 Sanyo Chemical Industries, Ltd. Moldable composition, process for producing sintered body therefrom and products from same
US5320673A (en) * 1992-05-15 1994-06-14 Basf Lacke+Farben Aktiengesellschaft Dispersants for pigments in waterborne coatings compositions
EP0962505A1 (fr) * 1998-06-05 1999-12-08 Silberline Manufacturing Co. Inc. Pâtes à base de pigments métalliques inhibés contenant des pigments de type molybdate et applicables à des compositions aqueuses de revêtement
JP2007224363A (ja) * 2006-02-23 2007-09-06 Sekisui Chem Co Ltd 焼結性無機微粒子分散ペースト組成物
WO2009156149A1 (fr) 2008-06-25 2009-12-30 Eckart Gmbh Mélange pigmentaire de pigments d'aluminium pvd à effet, et pigments d'aluminium minces à effet obtenus par broyage, procédé pour leur fabrication, et leur utilisation
JP2011256094A (ja) 2010-06-11 2011-12-22 Sumitomo Metal Mining Siporex Kk 軽量気泡コンクリート用アルミニウム粉末
WO2013014211A2 (fr) 2011-07-25 2013-01-31 Eckart Gmbh Utilisation de matériaux de revêtement pulvérulents à enrobage spécial et procédés de revêtement mettant en oeuvre de tels matériaux de revêtement
US8409345B1 (en) 2011-11-18 2013-04-02 Malaxit Gaseous concrete raw mixture

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