DE102011009433A1 - Method and device for introducing nanoparticles in plastic melts - Google Patents
Method and device for introducing nanoparticles in plastic melts Download PDFInfo
- Publication number
- DE102011009433A1 DE102011009433A1 DE102011009433A DE102011009433A DE102011009433A1 DE 102011009433 A1 DE102011009433 A1 DE 102011009433A1 DE 102011009433 A DE102011009433 A DE 102011009433A DE 102011009433 A DE102011009433 A DE 102011009433A DE 102011009433 A1 DE102011009433 A1 DE 102011009433A1
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- nanoparticles
- extruder
- melt
- reactor
- transport medium
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
- B29C48/2886—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of fibrous, filamentary or filling materials, e.g. thin fibrous reinforcements or fillers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92333—Raw material handling or dosing, e.g. active hopper or feeding device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/92371—Inlet shaft or slot, e.g. passive hopper; Injector, e.g. injector nozzle on barrel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92828—Raw material handling or dosing, e.g. active hopper or feeding device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92866—Inlet shaft or slot, e.g. passive hopper; Injector, e.g. injector nozzle on barrel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
- B29K2105/162—Nanoparticles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Eine Vorrichtung zum Einbringen von Nanopartikeln in eine in einem Extruder (1) befindliche Kunststoffschmelze, soll so weitergebildet werden, dass die Nanopartikel in ihrer ursprünglichen Größe in die Schmelze eingespeist werden können, ohne dass es aufwendiger Zerkleinerungsvorrichtungen und hoher Energie für den Transport und das Zerkleinern von Nanopartikelklumpen bedarf. Dazu wird vorgeschlagen, dass ein Reaktor (4) zum Erzeugen von Nanopartikeln dem Extruder (1) unmittelbar zugeordnet ist.A device for introducing nanoparticles into a plastic melt located in an extruder (1) is to be developed in such a way that the original size of the nanoparticles can be fed into the melt without the need for complex comminution devices and high energy for transport and comminution of lumps of nanoparticles. It is proposed that a reactor (4) for producing nanoparticles is directly assigned to the extruder (1).
Description
Die Erfindung betrifft eine Vorrichtung zum Einbringen von Nanopartikeln in eine in einem Extruder befindliche Kunststoffschmelze sowie ein Verfahren zur Herstellung von mit Nanopartikeln versehenen Kunststoffschmelzen.The invention relates to a device for introducing nanoparticles into a plastic melt located in an extruder and to a method for producing plastic melts provided with nanoparticles.
Es ist bekannt, durch Einbringen von Nanopartikeln in Kunststoffschmelzen die Eigenschaften des daraus entstehenden Kunststoffs wie z. B. dessen Leitfähigkeit, Temperaturbeständigkeit, Festigkeit usw. zu beeinflussen. Daher werden bereits heute unterschiedliche, die jeweils gewünschten Eigenschaften fördernde Nanopartikel von Kunststoffherstellern in die Schmelze eingebracht.It is known by introducing nanoparticles in plastic melts, the properties of the resulting plastic such. B. its conductivity, temperature resistance, strength, etc. to influence. Therefore, different nanoparticles that promote the desired properties are already being introduced by plastic manufacturers into the melt.
Diese Nanopartikel werden in einem großen Reaktor erzeugt, verpackt, gelagert und zum Kunststoffhersteller transportiert, welcher die Nanopartikel bei Bedarf einer Schmelze zuführt.These nanoparticles are produced in a large reactor, packaged, stored and transported to the plastic manufacturer, which supplies the nanoparticles, if necessary, to a melt.
Dabei hat sich herausgestellt, dass die Nanopartikel beim Verpacken, Transportieren und Lagern verklumpen und in Ihrer Eigenschaft als Nanopartikel kaum noch bzw. nicht zu gebrauchen sind. Daher müssen die Nanopartikelklumpen, bevor diese in die Schmelze eingebracht werden können, wieder zerkleinert werden. Selbst bei noch so aufwendigen Zerkleinerungsverfahren werden die ursprünglichen Abmessungen der Nanopartikel, die zwischen 1 bis 10 000 Nanometern liegen, kaum wieder erreicht.It has been found that the nanoparticles clump together during packaging, transport and storage and, in their capacity as nanoparticles, are barely or unusable. Therefore, the nanoparticle lumps must be comminuted again before they can be introduced into the melt. Even with even the most complicated size reduction processes, the original dimensions of the nanoparticles, which are between 1 and 10,000 nanometers, are barely reached again.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Einbringen von Nanopartikeln in eine in einem Extruder befindliche Kunststoffschmelze sowie ein Verfahren zur Herstellung von mit Nanopartikeln versehenen Kunststoffschmelzen derart weiterzubilden, dass die Nanopartikel in ihrer ursprünglichen Größe in die Schmelze eingespeist werden können, ohne dass es aufwendiger Zerkleinerungsvorrichtungen sowie hoher Energie für den Transport und das Zerkleinern von Nanopartikelklumpen bedarf.The object of the invention is to develop a device for introducing nanoparticles into a plastic melt located in an extruder and a method for producing plastic melts provided with nanoparticles in such a way that the nanoparticles can be fed into the melt in their original size without it consuming shredding devices and high energy for the transport and crushing of nanoparticle lumps required.
Zur Lösung der Aufgabe wird vorgeschlagen, dass ein Reaktor zur Erzeugung von in einem Transportmedium befindlichen Nanopartikeln dem Extruder unmittelbar zugeordnet ist. Damit wird erreicht, dass die Nanopartikel direkt nach der Herstellung ohne Zwischenlagerung, Verpackung und längerem Transport in ihrer ursprünglich entstandenen Größe gleich der Schmelze zugeführt werden können.To solve the problem it is proposed that a reactor for the production of nanoparticles in a transport medium is directly associated with the extruder. This ensures that the nanoparticles can be fed directly to the melt immediately after production without intermediate storage, packaging and longer transport in their original size.
Dabei hat es sich bewährt, dass es sich bei dem Transportmedium um ein gasförmiges Medium handelt.It has been proven that the transport medium is a gaseous medium.
Von Vorteil ist, dass ein Ausgang des Reaktors durch eine feste Verbindung mit einer Einspeiseöffnung des Extruders verbunden ist. Dadurch lassen sie möglichst kurze Wege realisieren, die einem Verklumpen der Nanopartikel keinen Raum lassen.It is advantageous that an outlet of the reactor is connected by a fixed connection to an inlet opening of the extruder. As a result, they allow the shortest possible paths to be realized which leave no room for clumping of the nanoparticles.
Es hat sich bewährt, dass dem Extruder an einer Absaugöffnung über eine weitere feste Verbindung eine Vakuumpumpe zugeordnet ist und dass zwischen der Vakuumpumpe und dem Reaktor über Schmelze besetzte Schnecken ein Kontakt derart besteht, dass das Transportmedium mit den Nanopartikeln über die Schmelzeoberfläche geführt wird. Dadurch wird erreicht, dass durch das von der Vakuumpumpe aufgebaute Druckgefälle im Extruder die im Reaktor erzeugten Nanopartikel aus dessen Ausgang abgesogen werden, so dass den Nanopartikeln noch weniger Zeit bleibt, zu verklumpen.It has been proven that the extruder is associated with a vacuum pump via a further fixed connection, a vacuum pump and that between the vacuum pump and the reactor occupied by melt screws, a contact is such that the transport medium is guided with the nanoparticles on the melt surface. It is thereby achieved that the nanoparticles produced in the reactor are sucked out of its outlet by the pressure gradient built up by the vacuum pump in the extruder, so that the nanoparticles have even less time to agglomerate.
Es empfiehlt sich, den Ausgang des Reaktors und/oder die feste Verbindung und/oder die Einspeiseöffnung des Extruders und/oder die Absaugöffnung und/oder die weitere feste Verbindung mit einer austauschbaren Schutzschicht auszukleiden. Dadurch kann z. B. im Zuge eines Produktwechsels der Reinigungsaufwand durch Austausch der Schutzschicht erheblich minimiert werden.It is advisable to line the exit of the reactor and / or the solid connection and / or the feed opening of the extruder and / or the suction opening and / or the further solid connection with an exchangeable protective layer. As a result, z. B. in the course of a product change the cleaning effort by replacing the protective layer can be significantly minimized.
Um den Eintrag der Nanopartikel in die Schmelze günstig zu beeinflussen wird vorgeschlagen, dass der festen Verbindung und/oder der weiteren festen Verbindung in ihrer Temperatur einstellbare Temperiervorrichtungen zugeordnet sind.In order to favorably influence the entry of the nanoparticles into the melt, it is proposed that tempering devices adjustable in their temperature are assigned to the solid compound and / or the further solid compound.
Ein besonders kompakter und wirkungsvoller Aufbau wird erreicht, wenn die feste Verbindung und die weitere feste Verbindung eine Einheit bilden, wobei die Einspeiseöffnung des Extruders und die Vakuumpumpe beabstandet, vorzugsweise am Extruder gegenüberliegend ausgebildet sind.A particularly compact and effective construction is achieved when the fixed connection and the further fixed connection form a unit, wherein the feed opening of the extruder and the vacuum pump are spaced apart, preferably formed on the extruder opposite.
Es empfiehlt sich, dass zwischen dem Reaktor und dem Extruder ein erstes Ventil zur Dosierung der im Transportmedium befindlichen Nanopartikel und/oder dass zwischen Extruder und Vakuumpumpe ein zweites Ventil zum Einstellen des Unterdrucks vorgesehen ist. Durch die Ventile lässt sich das Mischungsverhältnis optimal beeinflussen.It is recommended that between the reactor and the extruder, a first valve for metering the nanoparticles in the transport medium and / or that between the extruder and the vacuum pump, a second valve for adjusting the negative pressure is provided. The valves can optimally influence the mixing ratio.
Dabei ist es vorteilhaft, wenn eine Steuer- bzw. Regelvorrichtung zumindest auf eines der Ventile einwirkt und die Dosierung der Nanopartikel automatisch übernimmt.It is advantageous if a control or regulating device acts on at least one of the valves and takes over the metering of the nanoparticles automatically.
Verfahrensmäßig wird vorgeschlagen, dass das z. B. Kunststoffgranulat in einem Extruder plastifiziert wird, dass in einem Reaktor in einem Transportmedium befindliche Nanopartikel erzeugt werden, dass die Nanopartikel mittels des Transportmediums aus dem Reaktor über eine feste Verbindung, vorzugsweise dosiert, in den Extruder eingespeist werden, dass die Nanopartikel beim Auftreffen auf die Schmelze vom Transportmedium getrennt werden und sich mit der Schmelze verbinden, und dass die Schmelze mit den Nanopartikeln im Extruder gemischt wird, während das Transportmedium aus dem Extruder abgeleitet wird.It is proposed by the method that the z. B. plastic granules is plasticized in an extruder that in a reactor located in a transport medium nanoparticles are generated, that the nanoparticles are fed by means of the transport medium from the reactor via a solid compound, preferably metered, in the extruder, that the nanoparticles on impact the melt is separated from the transport medium and combines with the melt, and that the melt is mixed with the nanoparticles in the extruder, while the transport medium is discharged from the extruder.
Vorteilhaft ist dabei, dass am Extruder über eine weitere feste Verbindung ein Vakuum anliegt, von welchem zwischen der festen Verbindung und der zweiten festen Verbindung ein Druckgefälle aufgebaut ist, über welches das Transportmedium mit den Nanopartikeln aus dem Reaktor abgesaugt und die Nanopartikel der Schmelze zugeführt werden.It is advantageous that a vacuum is applied to the extruder via a further solid compound, from which a pressure gradient is built up between the solid compound and the second solid compound, via which the transport medium with the nanoparticles is sucked out of the reactor and the nanoparticles are fed to the melt ,
Vorzugsweise wird die Dosierung und/oder das Mischen der Nanopartikel mit der Schmelze und/oder die Einstellung des Unterdrucks gesteuert bzw. geregelt erfolgen.Preferably, the metering and / or the mixing of the nanoparticles with the melt and / or the adjustment of the negative pressure are controlled or regulated.
Die Erfindung wird anhand einer Zeichnung näher erläutert. Dabei zeigt die Figur einen Extruder
Ein Reaktor
Eine Vakuumpumpe
Über eine Regelvorrichtung
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Extruderextruder
- 22
- Motorengine
- 33
- Zuführvorrichtungfeeder
- 44
- Reaktorreactor
- 55
- feste Verbindungstable connection
- 66
- erstes Ventilfirst valve
- 77
- Vakuumpumpevacuum pump
- 88th
- weitere feste Verbindunganother firm connection
- 99
- zweites Ventilsecond valve
- 1010
- Steuer/RegelvorrichtungControl / regulating device
Claims (12)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011009433A DE102011009433A1 (en) | 2011-01-26 | 2011-01-26 | Method and device for introducing nanoparticles in plastic melts |
EP12710864.5A EP2668018A1 (en) | 2011-01-26 | 2012-01-24 | Method and device for producing plastic melts provided with nanoparticles |
PCT/EP2012/000305 WO2012100936A1 (en) | 2011-01-26 | 2012-01-24 | Method and device for producing plastic melts provided with nanoparticles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011009433A DE102011009433A1 (en) | 2011-01-26 | 2011-01-26 | Method and device for introducing nanoparticles in plastic melts |
Publications (1)
Publication Number | Publication Date |
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DE102011009433A1 true DE102011009433A1 (en) | 2012-07-26 |
Family
ID=45894411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102011009433A Withdrawn DE102011009433A1 (en) | 2011-01-26 | 2011-01-26 | Method and device for introducing nanoparticles in plastic melts |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2668018A1 (en) |
DE (1) | DE102011009433A1 (en) |
WO (1) | WO2012100936A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103950176A (en) * | 2014-05-13 | 2014-07-30 | 于浩 | Anti-blocking charging device of plastic extruding machine |
US9518162B2 (en) | 2012-07-13 | 2016-12-13 | The Secretary Of State For Defence | Process of making a continuous dielectric film comprising dispersed nanoparticles |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113414960A (en) * | 2021-05-18 | 2021-09-21 | 福建中锦新材料有限公司 | Nano powder adding increment preparation method and feeding device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1415784A1 (en) * | 2002-10-31 | 2004-05-06 | SABIC Polypropylenes B.V. | Compounding process |
DE102008038667A1 (en) * | 2008-08-12 | 2010-02-25 | K+S Ag | Production process of thermoplastic polymers comprising coarse-scale and / or nanoscale, coated, deagglomerated magnesium hydroxide particles and a device for this purpose |
WO2010118881A2 (en) * | 2009-04-17 | 2010-10-21 | Michael Dvorak | Method for powder coating or for producing composite materials, preferably when processing plastics or spray compacting metals |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10348548A1 (en) * | 2003-10-20 | 2005-05-19 | Fact Future Advanced Composites & Technology Gmbh | Extrusion process for the production of toughened and layer silicate reinforced thermoplastic systems |
GB0401821D0 (en) * | 2004-01-28 | 2004-03-03 | Qinetiq Nanomaterials Ltd | Method of manufacture of polymer composites |
DE102004062633B4 (en) * | 2004-12-24 | 2007-08-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for the preparation of polymers based on metal-based fine particles |
JP5711111B2 (en) * | 2008-03-28 | 2015-04-30 | スリーエム イノベイティブ プロパティズ カンパニー | Filling resin and method for producing the filling resin |
US8541485B2 (en) * | 2009-05-26 | 2013-09-24 | 3M Innovative Properties Company | Process for making filled resins |
-
2011
- 2011-01-26 DE DE102011009433A patent/DE102011009433A1/en not_active Withdrawn
-
2012
- 2012-01-24 WO PCT/EP2012/000305 patent/WO2012100936A1/en active Application Filing
- 2012-01-24 EP EP12710864.5A patent/EP2668018A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1415784A1 (en) * | 2002-10-31 | 2004-05-06 | SABIC Polypropylenes B.V. | Compounding process |
DE102008038667A1 (en) * | 2008-08-12 | 2010-02-25 | K+S Ag | Production process of thermoplastic polymers comprising coarse-scale and / or nanoscale, coated, deagglomerated magnesium hydroxide particles and a device for this purpose |
WO2010118881A2 (en) * | 2009-04-17 | 2010-10-21 | Michael Dvorak | Method for powder coating or for producing composite materials, preferably when processing plastics or spray compacting metals |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9518162B2 (en) | 2012-07-13 | 2016-12-13 | The Secretary Of State For Defence | Process of making a continuous dielectric film comprising dispersed nanoparticles |
CN103950176A (en) * | 2014-05-13 | 2014-07-30 | 于浩 | Anti-blocking charging device of plastic extruding machine |
Also Published As
Publication number | Publication date |
---|---|
EP2668018A1 (en) | 2013-12-04 |
WO2012100936A1 (en) | 2012-08-02 |
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R082 | Change of representative |
Representative=s name: GIHSKE GROSSE KLUEPPEL KROSS BUEROGEMEINSCHAFT, DE Effective date: 20130429 |
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R120 | Application withdrawn or ip right abandoned |