DE470270C - Process for the production of objects made of rubber or similar plastic materials when heated - Google Patents

Process for the production of objects made of rubber or similar plastic materials when heated

Info

Publication number
DE470270C
DE470270C DEG66451D DEG0066451D DE470270C DE 470270 C DE470270 C DE 470270C DE G66451 D DEG66451 D DE G66451D DE G0066451 D DEG0066451 D DE G0066451D DE 470270 C DE470270 C DE 470270C
Authority
DE
Germany
Prior art keywords
rubber
heated
plastic materials
production
similar plastic
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
Application number
DEG66451D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE470270C publication Critical patent/DE470270C/en
Expired legal-status Critical Current

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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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0067—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other
    • B29C37/0075—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other using release sheets
    • 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
    • B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, 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
    • B29K2021/00—Use of unspecified rubbers as moulding material

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Description

Verfahren zur Herstellung von Gegenständen aus Kautschuk oder ähnlichen bei Erhitzung plastischen Stoffen Bei der Herstellung von Gegenständen aus Kautschuk, Guttapercha und anderen Stoffen in Formen muß das Ankleben der Gegenstände an den Formen verhindert werden. Zu diesem Zweck benutzt man verschiedene Arten von Zwischenlagen, welche die Form und den zu formenden Stoff trennten. Zum Beispiel wurden verschiedene fettige Stoffe von- pflanzlichem, tierischem oder mineralischem Ursprung verwendet, ebenso Lösungen von Harz oder Collodium. Auch wurden Alkalisilikatlösungen, Seifenlösungen u. dgl. vorgeschlagen. Man hat auch Versuche gemacht, die Form au.szupudern, z. B. mit Talk oder mit sogenanntem Bronzepulver; auch hat man dünne Metallfolien (z. B. aus Zinn, Aluminium oder Gold) zwischen die Form und den zu formenden Stoff gelegt. Ferner hat man Versuche mit metallischen Folien gemacht, welche elektrolytisch in die Form eingefügt wurden.Process for the production of articles from rubber or the like when heating plastic materials when manufacturing objects made of rubber, Gutta-percha and other substances in forms must adhere the objects to the Forms are prevented. For this purpose, different types of intermediate layers are used, which separated the shape and the fabric to be molded. For example, there were several fatty substances of vegetable, animal or mineral origin are used, likewise solutions of resin or collodion. Also were alkali silicate solutions, soap solutions and the like suggested. Attempts have also been made to powder the mold, e.g. B. with talc or with so-called bronze powder; one also has thin metal foils (e.g. B. made of tin, aluminum or gold) placed between the mold and the fabric to be molded. Furthermore, attempts have been made with metallic foils, which are electrolytically in the shape was inserted.

Keins dieser oder anderer bekannter Mittel hat sich als zuverlässig erwiesen. Metallische Zwischenlagen. führen häufig chemische Veränderung herbei, bei anderen Stoffen ist es nicht möglich. völlig gleichmäßige Lage aufzubringen. Das neue Verfahren, welches darin besteht, daß man .eine aus physikalischhomogener organischer Masse bestehende Folie verwendet, bringt keinen der erwähnten Nachteile mit sich. Eine solche Folie von sehr geringer gleichmäßiger Dicke, großer Biegsamkeit und Elastizität-, welche den vorkommenden Temperaturen und Drucken wie auch Feuchtigkeit, ohne sich aufzulösen, zu zerreißen oder sich chemisch zu verändern, widersteht, haftet nicht an der Form oder an dem herzustellenden Gegenstand. Eine Folie von o,2 mm Dicke ist zum Wiedergeben von Fingereindrücken und Grammophonaufzeichnungen mit vulkanisiertem Kautschuk mit Erfolg verwendet worden.None of these or any other known remedies have been proven to be reliable proven. Metallic intermediate layers. often induce chemical change, it is not possible with other substances. to apply completely even position. The new method, which consists in that one of physically homogeneous Using a film consisting of organic matter does not bring any of the disadvantages mentioned with himself. Such a film of very small uniform thickness, great flexibility and elasticity - which corresponds to the occurring temperatures and pressures as well as humidity, without dissolving, tearing or chemically changing, resists, does not adhere to the shape or the object to be manufactured. A slide of o, 2mm thickness is for reproducing fingerprints and gramophone recordings with vulcanized rubber has been used with success.

Zahlreiche Versuche haben ergeben, daß verschiedene Stoffe organischer Natur rnät verschiedenen Graden des Erfolges die angegebenen Bedingungen erfüllen. Sfoffe aus Cellulose oder Abkömmlinge (Derivate) derselben haben am besten den Bedingungen genügt. Gewöhnliches Papier ist zu spröde, schwach und nicht elastisch. Anderseits können verschiedene Arten von Spezialpapieren verwendet werden, besonders sogenanntes vegetabilisches Pergament. Als besonders geeignet hat sich die bekannte Celluloseglashaut erwiesen, aber auch Folien. von gelatinierter Nitrocellulose mit oder ohne Kampfer (CelluloicI oder -Collodium), z. B. Acetylderivate (Acetyleellulose) wie auch andere Acetylprodukte und andere Cellulosen mit Alkohölradikalen, sind brauchbar.Numerous experiments have shown that various substances are more organic Nature advises various degrees of success to meet the stated conditions. Sfoffe from cellulose or derivatives (derivatives) of the same have the best conditions enough. Ordinary paper is too brittle, weak and not elastic. On the other hand various types of specialty papers can be used, especially so-called vegetable Parchment. The known cellulose glass skin has proven to be particularly suitable, but also foils. of gelatinized nitrocellulose with or without camphor (CelluloicI or -Collodion), e.g. B. acetyl derivatives (acetyl cellulose) as well as other acetyl products and other celluloses with alcohol radicals are useful.

Wenn eine Cellulosefolie verwendet wird, soll dieselbe am besten in angefeuchtetem Zustand aufgelegt werden., wobei für das Anfeuchten eine gegenüber der plastischen Masse chemisch indifferente Flüssigkeit benutzt wird, die von der Folie absorbiert wird.If cellulose film is used, it is best to use it in moistened state are placed., with one opposite for moistening the plastic mass chemically indifferent liquid is used, which is of the Foil is absorbed.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung von Gegenständen aus Kautschuk oder ähnlichen bei Erhitzung plastischen Stoffen, bei dem zwischen der Form und dem zu formenden Stoff eine dünne Folie angeordnet wird, dadurch gekennzeichnet, daß die Folie aus physikalischhomogener organischer Masse besteht. PATENT CLAIMS: i. Method of making objects from Rubber or similar plastic materials when heated, in which between the A thin film is placed on the mold and the material to be molded, characterized in that that the film consists of a physically homogeneous organic mass. 2. Verfahren nach Anspruch i, dadurch gskennzeichnet, daß die Folie aus Cellui lose oder Cellu.losederivaten besteht.2. Procedure according to claim i, characterized in that the film made of cellulose loose or cellulose derivatives consists.
DEG66451D 1925-02-12 1926-02-11 Process for the production of objects made of rubber or similar plastic materials when heated Expired DE470270C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE470270X 1925-02-12

Publications (1)

Publication Number Publication Date
DE470270C true DE470270C (en) 1929-01-09

Family

ID=20310318

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG66451D Expired DE470270C (en) 1925-02-12 1926-02-11 Process for the production of objects made of rubber or similar plastic materials when heated

Country Status (1)

Country Link
DE (1) DE470270C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE862362C (en) * 1949-01-28 1953-01-08 Metallgesellschaft Ag Process for the temporary release of the tackiness of surfaces
DE912748C (en) * 1950-06-11 1954-06-03 Telefunken Gmbh Process for the production of elastic-porous objects made of rubber, plastic or the like.
DE1194123B (en) * 1957-10-23 1965-06-03 Galt Glass Laminates Ltd Process for the production of objects from hot or cold hardening casting resin in molds
DE1218145B (en) * 1961-11-23 1966-06-02 Aga Ab Use of a polyester film or polyethylene film as an intermediate layer when vulcanizing a web of fabric embedded in rubber and wound into a roll

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE862362C (en) * 1949-01-28 1953-01-08 Metallgesellschaft Ag Process for the temporary release of the tackiness of surfaces
DE912748C (en) * 1950-06-11 1954-06-03 Telefunken Gmbh Process for the production of elastic-porous objects made of rubber, plastic or the like.
DE1194123B (en) * 1957-10-23 1965-06-03 Galt Glass Laminates Ltd Process for the production of objects from hot or cold hardening casting resin in molds
DE1218145B (en) * 1961-11-23 1966-06-02 Aga Ab Use of a polyester film or polyethylene film as an intermediate layer when vulcanizing a web of fabric embedded in rubber and wound into a roll

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