DE102004046274A1 - Method to reprocess rubber- and plastic wastes to secondary raw material to produce products, comprises pulverizing vulcanized rubber wastes, granulating plastic wastes and mixing pulverized rubber- and granulated plastic material - Google Patents

Method to reprocess rubber- and plastic wastes to secondary raw material to produce products, comprises pulverizing vulcanized rubber wastes, granulating plastic wastes and mixing pulverized rubber- and granulated plastic material Download PDF

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Publication number
DE102004046274A1
DE102004046274A1 DE200410046274 DE102004046274A DE102004046274A1 DE 102004046274 A1 DE102004046274 A1 DE 102004046274A1 DE 200410046274 DE200410046274 DE 200410046274 DE 102004046274 A DE102004046274 A DE 102004046274A DE 102004046274 A1 DE102004046274 A1 DE 102004046274A1
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Prior art keywords
rubber
plastic
wastes
granulated
raw material
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DE200410046274
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German (de)
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Bülent Emekci
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EMAG AG
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EMAG AG
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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
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • 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
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • B29B17/0042—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting for shaping parts, e.g. multilayered parts with at least one layer containing regenerated plastic
    • 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
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/04—Codes relating to disintegrating devices adapted for specific materials for used tyres
    • 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
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0224—Screens, sieves
    • 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
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0237—Mechanical separating techniques; devices therefor using density difference
    • B29B2017/0244—Mechanical separating techniques; devices therefor using density difference in liquids
    • 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
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0268—Separation of metals
    • 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
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • 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
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055—Cars
    • 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
    • C08J2321/00—Characterised by the use of unspecified rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L19/00—Compositions of rubbers not provided for in groups C08L7/00 - C08L17/00
    • C08L19/003—Precrosslinked rubber; Scrap rubber; Used vulcanised rubber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Method for the reprocessing of rubber- and plastic wastes to a secondary raw material for the production of products, comprises pulverizing the vulcanized rubber wastes, granulating the plastic wastes, and mixing the pulverized rubber material and the granulated plastic material to the secondary material. An independent claim is also included for a molded article prepared by the method.

Description

Die Erfindung bezieht sich auf ein Verfahren gemäß Oberbegriff Patentanspruch 1.The The invention relates to a method according to the preamble of the patent claim 1.

U. a. aus dem Fahrzeugbereich, aber auch aus anderen Bereichen, beispielsweise der Industrie und des Gewerbes fallen jährlich erhebliche Mengen an vulkanisierten Gummiabfällen an, wie z. B. Gummidichtungen aus Fahrzeugen, Altreifen von Fahrzeugen, Baumaschinen usw. Weiterhin fallen jährlich erhebliche Mengen an Kunststoff an, die aus Haushalt, Industrie und Gewerbe stammen.U. a. from the vehicle sector, but also from other areas, for example The industry and the trade generate considerable quantities every year vulcanized rubber waste on, such. B. rubber seals from vehicles, used tires of vehicles, Construction machinery, etc. Furthermore, considerable quantities are produced annually Plastic, which come from household, industry and trade.

Aufgabe der Erfindung ist es, diese Primärrohstoffe (Gummiabfälle und Kunststoffabfälle) sinnvoll zur Herstellung von neuen Produkten zu nutzen. Zur Lösung dieser Aufgabe ist ein Verfahren entsprechend dem Patentanspruch 1 ausgebildet. Ein Endprodukt ist Gegenstand des Patentanspruches 6.task It is the invention of these primary raw materials (Rubber waste and plastic waste) useful for the production of new products. To solve this Task is a method according to claim 1 formed. An end product is the subject of claim 6.

Die Erfindung wird im Folgenden anhand der Figur, die in schematischer Darstellung den Ablauf eines Verfahrens gemäß der Erfindung wiedergibt, näher erläutert.The Invention will be described below with reference to the figure, which is in schematic Representing the course of a method according to the invention reproduces, explained in more detail.

Bei dem in der 1 dargestellten Recycling-Verfahren werden als Ausgangsmaterial oder Primärrohstoffe Gummiabfälle G, insbesondere solche von Fahrzeugen, wie z. B. Gummidichtungen, Altreifen von Pkw's, Lkw's und/oder Baumaschinen, sowie Kunststoffabfälle K, insbesondere auch thermoplastische oder duroplastische Kunststoffabfälle verwendet, wie sie in Haushalt und Gewerbe anfallen.In the in the 1 illustrated recycling process are used as starting material or primary raw rubber waste G, especially those of vehicles such. As rubber seals, used tires of cars, trucks and / or construction machinery, and plastic waste K, in particular thermoplastic or thermosetting plastic waste used, as incurred in household and commercial.

In einem ersten Verfahrensschritt werden in einem Separator 1 die Gummiabfälle G in Gummibestandteile sowie in andere Fremdstoffe, wie Stahl usw. getrennt. Die angefallenen Nicht-Gummi-Fremdstoffe (z.B. Metall) werden über einen Transporteur 2 einer Wiederverwendung zugeführt, soweit dies möglich ist. Nicht wieder verwendbare Bestandteile werden entsorgt.In a first process step are in a separator 1 the rubber waste G is separated into rubber components and other foreign matter such as steel and so on. The incurred non-rubber foreign substances (eg metal) are transported via a conveyor 2 recycled as far as possible. Non-reusable components are disposed of.

Der Gummianteil wird nach dem Separieren in einer geeigneten Einrichtung 3 mechanisch zerkleinert und pulverisiert und dann beispielsweise in einem Zwischenspeicher 4 zwischengelagert.The rubber part becomes after separation in a suitable device 3 crushed and pulverized mechanically and then, for example, in a buffer 4 stored.

Die Kunststoffabfälle werden beispielsweise nach einer Vorsortierung in einer Sortiereinrichtung 5 in einer Einrichtung 6 zerkleinert und anschließend in dieser Einrichtung oder einer hieran im Verfahrensverlauf anschließenden Einrichtung 7 granuliert und als Kunststoffgranulat in einem Zwischenspeicher 8 gespeichert.The plastic waste, for example, after a presorting in a sorting device 5 in a facility 6 crushed and then in this facility or a subsequent thereto in the course process device 7 granulated and as plastic granules in a buffer 8th saved.

Die in dieser Form aufbereiteten und in den Speichern 7 und 8 gespeicherten Ausgansstoffe werden in einen Mischer 9 in einem definierten Mischverfahren weiterverarbeitet. Die so gewonnene Mischung wird dann als Sekundärrohstoff in einer geeigneten Einrichtung 10 zu Bedarfsprodukten, z. B. für die Autoindustrie, die Bauindustrie, die Möbelindustrie usw. verarbeitet. Die Herstellung der Produkte erfolgt in der Einrichtung 10 beispielsweise durch Spritzgieß- oder Extrusionsverfahren oder durch andere, hierfür geeignete Verfahren.The recycled in this form and in the stores 7 and 8th stored Ausgansstoffe be in a mixer 9 further processed in a defined mixing process. The mixture thus obtained is then used as a secondary raw material in a suitable facility 10 to demand products, eg. B. for the auto industry, the construction industry, the furniture industry, etc. processed. The production of the products takes place in the facility 10 for example, by injection molding or extrusion process or by other suitable method for this purpose.

Die Eigenschaften und Qualität der Produkte werden durch entsprechende Fertigungsprofile eingehalten, deren komplexe Struktur durch direkte Abhängigkeit von Mischungsverhältnisse der Sekundärrohstoffe, von der Temperatur, dem Druck und der Zeit gebildet sind. Die unterschiedlichen Fertigungsprofile werden daher digital in Programmen erfasst, über die dann beispielsweise der Mischer 9 sowie die Fertigungseinrichtung 10 gesteuert werden, sodass eine 100%ige Reproduzierbarkeit gewährleistet ist. Mit den gespeicherten Programmen können die Eigenschaften der herzustellenden Produkte bestimmt werden, wie z. B. Härtegrad, Oberfläche, Festigkeit, Elastizität usw.The properties and quality of the products are maintained by appropriate manufacturing profiles whose complex structure is formed by direct dependence on mixing ratios of secondary raw materials, temperature, pressure and time. The different production profiles are therefore recorded digitally in programs, over which then, for example, the mixer 9 as well as the manufacturing facility 10 be controlled so that a 100% reproducibility is guaranteed. With the stored programs, the properties of the products to be manufactured can be determined, such. As hardness, surface, strength, elasticity, etc.

Grundsätzlich erlaubt das erfindungsgemäße Verfahren die Verarbeitung der Gummiabfälle G und Kunststoffabfälle K sowie auch die Herstellung der End- oder Bedarfsprodukte ohne jegliche Zusätze, insbesondere auch ohne chemische Zusätze, sodass das erfindungsgemäße Verfahren insbesondere auch sehr umweltfreundlich durchgeführt werden kann. Grundsätzlich besteht aber auch die Möglichkeit, insbesondere den Sekundärrohstoff aus den Speichern 4 und 8 beispielsweise im Mischer 9 zusätzlich beizumischen, beispielsweise brand- oder feuerhemmende Zusätze, wie z. B. Aluminiumoxyd und/oder andere Füller, wie z. B. organische oder anorganische Quellmittel, die unter Einfluss von Feuchtigkeit Quellen (beispielsweise bei der Herstellung von Dichtungsmaterialien) und/oder Farbstoffe. Mit dem erfindungsgemäßen Verfahren ist es auch möglich, die hergestellten Endprodukte nach dem Ablauf ihrer Nutzungszeit wieder zu entsorgen, und zwar beispielsweise durch Einführen dieser Produkte als Gummiausgangsmaterial G in den Prozess.Basically, the inventive method allows the processing of rubber waste G and waste plastic K and the production of end or demand products without any additives, especially without chemical additives, so that the inventive method can be carried out in particular very environmentally friendly. In principle, there is also the possibility, in particular the secondary raw material from the stores 4 and 8th for example, in the mixer 9 additionally admix, for example, fire or fire retardant additives such. For example, alumina and / or other filler such. As organic or inorganic swelling agents, the influence of moisture sources (for example in the manufacture of sealing materials) and / or dyes. With the method according to the invention, it is also possible to dispose of the finished products produced after the end of their useful life, for example by introducing these products as rubber starting material G in the process.

Das beschriebene Verfahren eignet sich für die Herstellung einer Vielzahl von unterschiedlichen Produkten, insbesondere auch für die Herstellung von Produkten für die Automobilindustrie, wie z. B. Stoßstangen, Zierleisten, Kotflügel-Innenabdeckungen oder aber Produkten für die Bauindustrie, wie z. B. Straßenmarken, Leitplanken, Trennwände und Schall- oder Temperaturdämmmaterialien- oder Module.The method described is suitable for the production of a variety of different products, in particular for the production of products for the automotive industry, such. As bumpers, moldings, fender inner covers or products for the construction industry, such. As street brands, crash barriers, partitions and Sound or thermal insulation materials or modules.

Unabhängig von unterschiedlichen Fertigungsprofilen zeichnen sich die mit dem beschriebenen Verfahren hergestellten Produkte durch folgende Materialeigenschaften aus:

  • – Temperaturfestigkeit im Bereich zwischen –25°C und +100°C
  • – Härtegrade zwischen 50 Shore A und größer 100 Shore A
  • – geringes spezifisches Gewicht
  • – hohe Resistenz gegen Moos- und Pilzbildung
  • – schlag- und bruchfest
  • – wasserabweisend
  • – Nitrosaminbindung
  • – Beständigkeit gegen UV-Strahlung
  • – lange Lebensdauer, z.B. länger als 30 Jahre
  • – schwer entflammbar.
Regardless of different manufacturing profiles, the products produced by the described method are characterized by the following material properties:
  • - Temperature resistance in the range between -25 ° C and + 100 ° C
  • - Hardness levels between 50 Shore A and greater than 100 Shore A
  • - low specific weight
  • - high resistance to moss and fungus formation
  • - impact and break resistant
  • - water repellent
  • - Nitrosamine binding
  • - Resistance to UV radiation
  • - Long life, eg longer than 30 years
  • - hardly inflammable.

Die mit dem Verfahren hergestellten Produkte bzw. Materialien können durch Nageln, Schrauben, Kleben oder durch Hitzeanwendung verbunden werden. Die hergestellten Produkte sind in hohem Maße schall- und temperaturhemmend.The produced by the process products or materials can by Nailing, screwing, gluing or being connected by heat application. The manufactured products are highly sound and temperature-resistant.

Die Erfindung wurde voranstehend an einem Ausführungsbeispiel beschrieben. Es versteht sich, dass zahlreiche Änderungen sowie Abwandlungen möglich sind, ohne das dadurch der der Erfindung zugrunde liegende Erfindungsgedanke verlassen wird.The The invention has been described above with reference to an exemplary embodiment. It is understood that numerous changes and modifications are possible, without thereby the inventive idea underlying the invention will leave.

Claims (6)

Verfahren zur Wiederaufbereitung von Gummi- und Kunststoffabfällen (G, K) zu einem Sekundärrohstoff für die Herstellung von Produkten, dadurch gekennzeichnet, dass die vulkanisierten Gummiabfälle (G) pulverisiert werden, dass die Kunststoffabfälle (K) granuliert, und dass das pulverisierte Gummimaterial und das granulierte Kunststoffmaterial zu dem Sekundärmaterial gemischt werden.A process for recycling rubber and plastic waste (G, K) into a secondary raw material for the manufacture of products, characterized in that the vulcanized rubber waste (G) is pulverized, the plastic waste (K) is granulated, and that the pulverized rubber material and the granulated plastic material are mixed to the secondary material. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass vor dem Pulverisieren aus dem Gummiabfall (G) in einem Trennverfahren nicht aus Gummi bestehende Fremdstoffe, wie z. B. Metall oder Stahl entfernt werden.Method according to claim 1, characterized in that that before pulverizing from the gum waste (G) in a separation process non-rubber foreign substances such. As metal or steel be removed. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Herstellung des Endproduktes aus dem Sekundärmaterial unter Anwendung von Hitze und Druck erfolgt.Method according to claim 1 or 2, characterized that the production of the final product from the secondary material using heat and pressure. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Sekundärmaterial Zusätze, beispielsweise wenigstens einen Füller, einen feuerhemmenden Zusatz und/oder wenigstens einen Farbstoff enthält.Method according to one of the preceding claims, characterized characterized in that the secondary material Additions, For example, at least one filler, a fire retardant Additive and / or contains at least one dye. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Kunststoff im Sekundärmaterial zumindest teilweise in gerundeter und/oder ovaler Granulatform vorliegt.Method according to one of the preceding claims, characterized characterized in that the plastic in the secondary material at least partially in rounded and / or oval granule form is present. Formkörper, gekennzeichnet durch seine Herstellung nach dem Verfahren nach einem der Ansprüche 1–5.Moldings, characterized by its preparation according to the method of the claims 1-5.
DE200410046274 2004-09-22 2004-09-22 Method to reprocess rubber- and plastic wastes to secondary raw material to produce products, comprises pulverizing vulcanized rubber wastes, granulating plastic wastes and mixing pulverized rubber- and granulated plastic material Withdrawn DE102004046274A1 (en)

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DE200410046274 DE102004046274A1 (en) 2004-09-22 2004-09-22 Method to reprocess rubber- and plastic wastes to secondary raw material to produce products, comprises pulverizing vulcanized rubber wastes, granulating plastic wastes and mixing pulverized rubber- and granulated plastic material

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DE200410046274 DE102004046274A1 (en) 2004-09-22 2004-09-22 Method to reprocess rubber- and plastic wastes to secondary raw material to produce products, comprises pulverizing vulcanized rubber wastes, granulating plastic wastes and mixing pulverized rubber- and granulated plastic material

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2019853A (en) * 1978-03-28 1979-11-07 Speirs G K Method of producing thermoplastics moulding compounds using scrap materials
GB2072683A (en) * 1979-06-11 1981-10-07 Speirs G K Method of producing thermoplastics extrusions using scrap materials

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2019853A (en) * 1978-03-28 1979-11-07 Speirs G K Method of producing thermoplastics moulding compounds using scrap materials
GB2072683A (en) * 1979-06-11 1981-10-07 Speirs G K Method of producing thermoplastics extrusions using scrap materials

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