DE19506565B4 - Method for producing hollow bodies by conglutination of plastic flakes - Google Patents
Method for producing hollow bodies by conglutination of plastic flakes Download PDFInfo
- Publication number
- DE19506565B4 DE19506565B4 DE1995106565 DE19506565A DE19506565B4 DE 19506565 B4 DE19506565 B4 DE 19506565B4 DE 1995106565 DE1995106565 DE 1995106565 DE 19506565 A DE19506565 A DE 19506565A DE 19506565 B4 DE19506565 B4 DE 19506565B4
- Authority
- DE
- Germany
- Prior art keywords
- flakes
- plastic flakes
- plastic
- adhesive
- conglutination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/02—Moulding by agglomerating
-
- 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
-
- 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
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
- B29K2075/02—Polyureas
-
- 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
Abstract
Verfahren zum Herstellen von Hohlkörpern (1) durch Konglutinieren von Kunststoff-Flocken (2), insbesondere von flockenartigen Kunststoff-Abfällen, dadurch gekennzeichnet, daß zunächst auf die Innenwände (5) einer die Außenkontur des Hohlkörpers (1) bestimmenden Form (3) Haftmittel aufgetragen wird, daß anschließend der Form-Hohlraum (4) vollständig mit Kunststoff-Flocken (2) befüllt wird, und daß nach Vernetzen der äußeren, mit Haftmittel in Berührung kommenden Kunststoff-Flocken (2) die nicht vernetzten innenliegenden Kunststoff-Flocken (2) entfernt werden.method for producing hollow bodies (1) by conglutination of plastic flakes (2), in particular of flake-like plastic waste, characterized that first up the interior walls (5) one the outer contour of the hollow body (1) determining form (3) adhesive is applied, then the Mold cavity (4) completely filled with plastic flakes (2) will, and that after Crosslink the outer, with Adhesive in contact upcoming plastic flakes (2) the non-crosslinked internal plastic flakes (2) are removed.
Description
Die
Erfindung betrifft ein Verfahren zum Herstellen von Hohlkörpern durch
Konglutinieren von Kunststoff-Flocken, insbesondere flockenartiger Kunststoffabfälle. Ein
mögliches
Verfahren zum Herstellen von konglutinierter Schaumstoffe unter
Verwendung von insbesondere Polyurethan-Schaumabfall beschreibt
die
Ein
weiteres mögliches
Verfahren zur Herstellung von Schaumstoff-Formteilen beschreibt die
Mit den bekannten Verfahren lassen sich jedoch keine Hohlkörper herstellen. Dabei wäre beispielsweise die Herstellung von rohrförmigen Kanalteilen aus Kunststoff-Flocken bzw. flockenartigen Kunststoffabfällen besonders interessant, da sich Kanalwände, die aus konglutinierten Kunststoff-Flocken aufgebaut wurden, durch besonders günstige akustische Eigenschaften auszeichnen.With However, the known method can not produce hollow body. It would be For example, the production of tubular channel parts made of plastic flakes or flake-like plastic waste particularly interesting, because channel walls, which are made up of conglutinated plastic flakes particularly favorable acoustic Characterize features.
Aufgabe der Erfindung ist es daher, ein Verfahren aufzuzeigen, mit Hilfe dessen durch Konglutinieren von Kunststoff-Flocken auch Hohlkörper hergestellt werden.task It is therefore an object of the invention to provide a method with the aid of whose produced by Konglutinieren of plastic flakes and hollow body become.
Zur Lösung dieser Aufgabe ist vorgesehen, daß zunächst auf die Innenwände einer die Außenkontur des Hohlkörpers bestimmenden Form Haftmittel aufgetragen wird, daß anschließend der Form-Hohlraum vollständig mit Kunststoff-Flocken befüllt wird und daß nach Vernetzen der äußeren, mit Haftmittel in Berührung kommenden Kunststoff-Flocken die nicht vernetzten innenliegenden Kunststoff-Flocken entfernt werden. Vorteilhafte Weiterbildungen sind Inhalt der Unteransprüche.to solution This object is achieved that first on the inner walls of a the outer contour of the hollow body determining form adhesive is applied, then the mold cavity Completely filled with plastic flakes and that after Crosslink the outer, with adhesive in touch coming plastic flakes the non-crosslinked inside Plastic flakes are removed. Advantageous developments are content of the subclaims.
Im
folgenden wird eine bevorzugte Ausführungsform der Erfindung unter
Bezug auf die beigefügten
Prinzipskizzen näher
erläutert.
Dabei zeigt
Hergestellt
werden soll der in
Zunächst
wird auf die Innenwände
First, on the inner walls
Nun
werden über
den Kanal
Nach
dem Vernetzungsprozeß der äußeren, mit
Haftmittel in Berührung
kommenden Kunststoff-Flocken
Das beschriebene Herstellverfahren zeichnet sich durch äußerste Einfachheit aus und ist somit billig und leicht durchführbar. Ebenso günstig sind die damit erzielbaren Hohlkörper, nicht nur unter Recyclingaspekten, sondern auch hinsichtlich ihrer akustischen Eigenschaften, wenn diese Hohlkörper beispielsweise als Kanäle zur Leitung insbesondere gasförmiger Fluide verwendet werden.The described manufacturing process is characterized by utmost simplicity and is therefore cheap and easy to carry out. Equally cheap the achievable hollow body, not only in terms of recycling, but also in terms of their acoustic properties, if these hollow bodies, for example, as channels for conduction in particular gaseous Fluids are used.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995106565 DE19506565B4 (en) | 1995-02-24 | 1995-02-24 | Method for producing hollow bodies by conglutination of plastic flakes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995106565 DE19506565B4 (en) | 1995-02-24 | 1995-02-24 | Method for producing hollow bodies by conglutination of plastic flakes |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19506565A1 DE19506565A1 (en) | 1996-08-29 |
DE19506565B4 true DE19506565B4 (en) | 2007-06-14 |
Family
ID=7754995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1995106565 Expired - Fee Related DE19506565B4 (en) | 1995-02-24 | 1995-02-24 | Method for producing hollow bodies by conglutination of plastic flakes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19506565B4 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2301949A1 (en) * | 1972-01-17 | 1973-08-02 | Serpo Nv | Bonded foam products |
DE2262600A1 (en) * | 1972-12-21 | 1974-06-27 | Ver Foerderung Inst Kunststoff | Plastic skins for foam core moulded panels - produced in mould elements as linings |
DE2061112C3 (en) * | 1969-12-11 | 1977-12-08 | Sekisui Kagaku Kogyo KX, Osaka (Japan) | Process for making molded articles from thermoplastic material |
DE4004587A1 (en) * | 1990-02-15 | 1991-08-22 | Joma Daemmstoffwerk Gmbh & Co | Recovery of polystyrene from scrap foam - granulated foam is compressed in several steps in chamber while steam is added |
EP0366407B1 (en) * | 1988-10-24 | 1994-07-27 | Toray Engineering Co., Ltd. | Method of making a composite foamed and shaped article |
EP0347528B1 (en) * | 1988-05-24 | 1994-12-28 | Deutsche Solvay-Werke Gmbh | Process for preparing moulded objects |
DE4333330A1 (en) * | 1993-09-30 | 1995-04-06 | Basf Ag | Process for the production of foam molded parts |
-
1995
- 1995-02-24 DE DE1995106565 patent/DE19506565B4/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2061112C3 (en) * | 1969-12-11 | 1977-12-08 | Sekisui Kagaku Kogyo KX, Osaka (Japan) | Process for making molded articles from thermoplastic material |
DE2301949A1 (en) * | 1972-01-17 | 1973-08-02 | Serpo Nv | Bonded foam products |
DE2262600A1 (en) * | 1972-12-21 | 1974-06-27 | Ver Foerderung Inst Kunststoff | Plastic skins for foam core moulded panels - produced in mould elements as linings |
EP0347528B1 (en) * | 1988-05-24 | 1994-12-28 | Deutsche Solvay-Werke Gmbh | Process for preparing moulded objects |
EP0366407B1 (en) * | 1988-10-24 | 1994-07-27 | Toray Engineering Co., Ltd. | Method of making a composite foamed and shaped article |
DE4004587A1 (en) * | 1990-02-15 | 1991-08-22 | Joma Daemmstoffwerk Gmbh & Co | Recovery of polystyrene from scrap foam - granulated foam is compressed in several steps in chamber while steam is added |
DE4333330A1 (en) * | 1993-09-30 | 1995-04-06 | Basf Ag | Process for the production of foam molded parts |
Also Published As
Publication number | Publication date |
---|---|
DE19506565A1 (en) | 1996-08-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
8125 | Change of the main classification |
Ipc: B29C 41/08 |
|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |