DE245640C - - Google Patents
Info
- Publication number
- DE245640C DE245640C DENDAT245640D DE245640DA DE245640C DE 245640 C DE245640 C DE 245640C DE NDAT245640 D DENDAT245640 D DE NDAT245640D DE 245640D A DE245640D A DE 245640DA DE 245640 C DE245640 C DE 245640C
- Authority
- DE
- Germany
- Prior art keywords
- rubber
- air
- plug
- cylinder
- pressure
- 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
Links
- 239000000463 material Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000001172 regenerating Effects 0.000 claims 1
- 239000004636 vulcanized rubber Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 229920001875 Ebonite Polymers 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- 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
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/12—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
-
- 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
- C08J2307/00—Characterised by the use of natural 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
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (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)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- M 245640 KLASSE 39 #. GRUPPE- M 245640 CLASS 39 #. GROUP
Surrey, Engl,Surrey, Engl,
Um alten vulkanisierten Kautschuk und Vulkanit (Hartkautschuk) oder Abfälle dieser Materialien in einen Zustand überzuführen, in welchem sie wieder für die verschiedensten Zwecke Verwendung finden können, ist bereits vorgeschlagen worden, das Material zu zerkleinern und es unter Anwendung von beträchtlicher Wärme und hohem Druck, wobei die Masse zusammengeballt und durch Pressen von den lufterfüllten Hohlräumen befreit wird, wieder entsprechend zu formen.To old vulcanized rubber and vulcanite (hard rubber) or waste of this To transform materials into a state in which they can be used again for the most diverse Purposes can be used, it has already been proposed to crush the material and it with the application of considerable heat and high pressure, whereby the mass is agglomerated and pressed is freed from the air-filled cavities, to be shaped again accordingly.
Ein großer Teil der Schwierigkeit, welchen die Überführung von altem vulkanisiertem Kautschuk und Vulkanit in neue Formen darbietet, ist der Anwesenheit von atmosphä-■ rischer Luft in dem Alt- oder Abfallmaterial zuzuschreiben. Die eingeschlossene Luft setzt nämlich der unter Anwendung von Druck stattfindenden Vereinigung des Materials zu einer einheitlichen Masse einen mechanischen Widerstand entgegen und besitzt überdies die Neigung, die Oxydation des Materials einzuleiten und zu unterhalten, wenn behufs Erweichung desselben Wärme angewendet wird.Much of the difficulty faced by the transfer of old vulcanized Rubber and vulcanite present in new forms is the presence of atmospheric ■ attributable to the air in the waste or waste material. The trapped air sets namely the unification of the material under the application of pressure a uniform mass against a mechanical resistance and also has the Tendency to initiate and maintain the oxidation of the material, if for the sake of softening the same heat is applied.
Der vorliegenden Erfindung gemäß wird nun das Material (alter vulkanisierter Kautschuk oder Vulkanit), um seine Behandlung zu erleichtern, in einen geschlossenen Behälter gebracht, aus welchem die Luft abgesogen wird. Der Behälter wird in beliebiger Weise erwärmt und das Material einem entsprechenden Druck unterworfen, um eine Masse von homogener Beschaffenheit zu erzeugen.According to the present invention, the material (old vulcanized rubber or vulcanite) in a closed container to facilitate its treatment brought, from which the air is sucked. The container is used in any way heated and the material subjected to an appropriate pressure to produce a mass of to produce homogeneous consistency.
Das Material kann zu Beginn der Behandlung zermahlen oder in kleine Stücke zerschnitten werden, es ist jedoch durchaus nicht nötig, die Zerteilung des Materials weiter zu treiben als bis zur Erzielung von Stücken, die ihre Einführung in die Form oder in einen sonstigen Behälter, in welchem die angegebene Behandlung durchgeführt werden soll, gestatten. Es ist sogar nicht wünschenswert, die sogenannte nervige Struktur des Kautschuks durch zu weit gehendes Zermahlen zu zerstören.The material can be ground or cut into small pieces at the beginning of the treatment However, it is by no means necessary to further break up the material drift as up to the achievement of pieces which their introduction in the form or in another container in which the specified treatment is carried out should allow. It is even undesirable to have the so-called annoying structure of the To destroy rubber by grinding it too far.
In der Zeichnung ist eine zum' Wiederformen von Altkautschuk zu einem zylindrischen Pfropf geeignete Form veranschaulicht, und zwar zeigt Fig. 1 einen Vertikalschnitt, Fig. 2 die Draufsicht derselben.In the drawing is a 'reshaping old rubber to a cylindrical Illustrates a suitable shape for the graft, namely Fig. 1 shows a vertical section, Fig. 2 is a plan view of the same.
α ist ein Metallzylinder, in dessen oberes Ende ein Pfropf b dicht paßt, während das untere Zylinderende mit einem dicht schließenden abnehmbaren Pfropf c versehen ist. d ist ein Ansatzrohr, durch welches die Luft aus dem Zylinder α abgesogen werden kann. α is a metal cylinder, in the upper end of which a plug b fits tightly, while the lower end of the cylinder is provided with a tightly fitting removable plug c . d is an extension pipe through which the air can be sucked out of the cylinder α.
Nachdem der Boden des Zylinders mittels des Pfropfes c verschlossen worden ist, wird der zermahlene oder sonstwie zerkleinerte Kautschuk in den Zylinder eingebracht und der Pfropf b teilweise in das obere Ende desselben eingeführt. Inzwischen wird an das Rohr d eine Saugpumpe angeschlossen und die Luft abgesogen. Zum Erhitzen des Zylinders kann heißer Sand oder eine sonstigeAfter the bottom of the cylinder has been closed by means of the plug c, the ground or otherwise comminuted rubber is introduced into the cylinder and the plug b is partially inserted into the upper end thereof. In the meantime, a suction pump is connected to pipe d and the air is sucked off. Hot sand or some other material can be used to heat the cylinder
ίο geeignete Wännequelle dienen. Auf den oberen Pfropf b kann mittels einer Schraube ein entsprechender Druck ausgeübt werden, durch welchen der Pfropf allmählich auf die Kautschukmasse heruntergepreßt und diese veranlaßt wird, sich zu einem einheitlichen Stück zu vereinigen, welches nach dem Erkalten als elastischer homogener Block der Form zu entnehmen ist. ·ίο use a suitable heat source. A corresponding pressure can be exerted on the upper plug b by means of a screw, by means of which the plug is gradually pressed down onto the rubber mass and this is caused to unite into a single piece, which can be removed from the mold as an elastic homogeneous block after cooling . ·
Es wurde gefunden, daß bei Anwendung · des Vakuums alter vulkanisierter Kautschuk und Hartkautschuk bei Temperaturen von 150 bis 2oo° C. für das Erweichen unter Druck genügen.It has been found that when the vacuum is applied, old vulcanized rubber and hard rubber at temperatures of 150 to 2oo ° C. for softening under Pressure suffice.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE245640C true DE245640C (en) | 1900-01-01 |
Family
ID=504584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT245640D Expired DE245640C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE245640C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4950128A (en) * | 1987-11-09 | 1990-08-21 | Telmec S.P.A. | Automatic loading unit for sheet units onto machines equipped with a conveyor |
-
0
- DE DENDAT245640D patent/DE245640C/de not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4950128A (en) * | 1987-11-09 | 1990-08-21 | Telmec S.P.A. | Automatic loading unit for sheet units onto machines equipped with a conveyor |
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