CH398446A - Process for the preparation of an epoxy resin-hardener mixture - Google Patents
Process for the preparation of an epoxy resin-hardener mixtureInfo
- Publication number
- CH398446A CH398446A CH260562A CH260562A CH398446A CH 398446 A CH398446 A CH 398446A CH 260562 A CH260562 A CH 260562A CH 260562 A CH260562 A CH 260562A CH 398446 A CH398446 A CH 398446A
- Authority
- CH
- Switzerland
- Prior art keywords
- tube
- hardener
- resin
- bag
- epoxy resin
- Prior art date
Links
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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/223—Packed additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/55—Mixers with shaking, oscillating, or vibrating mechanisms the materials to be mixed being contained in a flexible bag submitted to periodical deformation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/50—Movable or transportable mixing devices or plants
- B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
- B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/713—Feed mechanisms comprising breaking packages or parts thereof, e.g. piercing or opening sealing elements between compartments or cartridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/713—Feed mechanisms comprising breaking packages or parts thereof, e.g. piercing or opening sealing elements between compartments or cartridges
- B01F35/7131—Breaking or perforating packages, containers or vials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/716—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components
- B01F35/7162—A container being placed inside the other before contacting the contents
-
- 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
- B29C67/0037—Forming articles from a moulding composition enclosed in a deformable bag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
- B65D81/3261—Flexible containers having several compartments
- B65D81/3272—Flexible containers having several compartments formed by arranging one flexible container within another
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2805—Mixing plastics, polymer material ingredients, monomers or oligomers
-
- 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
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
Description
Verfahren zur Zubereitung eines Epoxyharz-Härter-Gemisches
Die Verarbeitung von EpoxyharzHärter-Gemi- schen besitzt bislang folgende Nachteile: Bei der Anwendung im Betrieb ist auf ein genaues Einhalten der stöchiometrischen Verhältnisse und eine gute Durchmischung zu achten, da sonst die optimalen Eigenschaften des gehärteten Giesslings nicht erreicht werden. Ausserdem zeigt sich besondern bei kalthärtenden Epoxyharzgemischen bei einer Fehlmischung ein häufiges Ausschwitzen des Aminhärters, was auf Grund der toxischen Wirkung desselben zu Hauterkrankungen führen kann. Dieselben Gefahren zeigen sich im besonderen bei kalthärtenden Epoxyharz-Gemischen im unausgehärteten Zustand in vermehrtem Masse.
Die Erfahrung lehrte, dass ganze Betriebsabteilungen auf Grund von Hauterkrankungen der Belegschaft die Arbeit einstellen oder die mit solchen Harzen arbeitenden Personen ständig durch neue ersetzt werden mussten. Dies ist insofern schwierig, als das Arbeiten mit den beschriebenen Harzen grösste Genauigkeit, Sauberkeit und Schnelligkeit verlangt, weshalb neue Kräfte eingearbeitet werden müssen.
Die bisherigen Verpackungsarten ergaben nur die Möglichkeit, Harz und Härter getrennt aufzubewahren und vor dem Aushärten unter genauer Einhaltung der Bedingungen und unter Einschluss der dabei auftretenden Gefahren zu mischen. Aus den erwähnten Schwierigkeiten und Nachteilen war es wünschenswert, eine Verpackungsart zu finden, die unbeschränkte Lagerfähigkeit, ein Zusammengeben der beiden Komponenten im genauen Verhältnis und die Möglichkeit des Mischens kurz vor der Verwendung des Harzes in sich einschliesst. Dabei muss der Mischvorgang im Behälter selbst so vorgenommen werden können, dass der mit dem Harz Arbeitende mit dem Inhalt nicht in Berührung kommt. Ausserdem sollen Mischgeräte, Rührwerke und andere
Hilfsmittel wegfallen. Diese Forderungen werden durch das Verfahren gemäss der vorliegenden Erfin dung voll erfüllt.
Ein Ausführungsbeispiel wird an hand der Zeichnung beschrieben.
Die Tube 1 besteht aus einer harzbeständigen etwa 0,4 mm dicken Folie, welche oben konisch in einen dünnen Hals 2 ausmündet. Dieser ist mittels einem aus dem gleichen Stück bestehenden Kopf 3 hermetisch verschlossen. Am Tubenhals, ebenfalls aus gleichem Material angeformt, befindet sich der bewegliche Deckel 4, welcher nach dem Abschneiden des Kopfes 4 und Austreiben der Luft 5 vorüberge hend in den Tubenhals 2 eingeführt wird. Die Tube 1 enthält die Harzflüssigkeit 6. In letzterer schwimmt lose der gegen das Harz und den Härter beständige und undurchlässige Beutel 7, welcher den Aminhärter -8 enthält. Der Beutel 7 besteht aus einer dünnen
Thermoplastfolie, deren Dicke ein Bruchteil der
Wandung der Tube 1 ist, etwa 0,05 mm. Der Beutel lässt sich unter Schlageinwirkung auf die Tube leicht sprengen.
Das Einfüllen des Harzes 6 in die Tube 1 und des
Härters 8 in den Härterbeutel 7 erfolgt durch auto matische Vorrichtungen, die nicht Gegenstand vorlie gender Erfindung bilden. Die Harz-Härteverpackung wird als Tube komplett verschlossen in den Handel gebracht.
Als Material für die Tube und den Härtebeutel ist ein dem Harz und dem Härter gegenüber indifferen tes zu währen. Das Mengenverhältnis von Harz zu
Härter hängt von der Art des Harzes ab. Die Wahl des Materials für die Tube und den Härterbeutel sowie des Mengenverhältnisses Harz zu Härter hat durch den Chemiker zu erfolgen und ist von ihm nachher zu überwachen.
Die Handhabung der Tube ergibt sich gemäss nachstehender Aufzählung.
1. Tubenkopf 3 abschneiden.
2. Luft 5 aus der Tube 1 austreiben durch Zusammenpressen der letzteren von Hand (Tubenhals 2 von sich weghalten).
3. Tubenhals 2 mittels Deckel 4 verschliessen.
4. Härterbeutel 7 im Innern der Tube 1 durch Schlag (Handkante) zum Bersten bringen. Tube ist hierzu auf feste Unterlage zu legen. Tubenhals 2 von sich wegrichten.
5. Vermischen des Härters mit dem Harz durch kräftiges Kneten und Reiben der Tube während min- destens 30 Sekunden.
6. Auspressen des Gemisches aus der Tube 1.
Tubenhals 2 von sich weghalten. Es ist hier noch zu beachten, dass das Harz-Härtergemisch bei Raumtem- peratur (18-20 C) eine beschränkte Haltbarkeit von etwa 2 Stunden besitzt. Der direkte Kontakt des nicht ausgehärteten Gemisches mit ungeschützter Haut ist zu vermeiden. Die Tuben sind waagrecht zu lagern.
Ausser den oben geschilderten Vorteilen bringt das Arbeiten mit einer solchen Verpackung eine Reihe von Erleichterungen mit sich. Neben der Einfachheit der Handhabung, die durch jeden Laien vorgenommen werden kann, ergibt sich eine rationellere Arbeitsmöglichkeit bei Verwendung grösserer Mengen in Betrieben. Die Betriebshygiene wird durch die Luftdichtheit der Verpackung und die dadurch völlig gewährleistete Reinlichkeit garantiert. Sämtliche Erkrankungsmöglichkeiten sind ausgeschaltet.
Process for the preparation of an epoxy resin-hardener mixture
The processing of epoxy resin hardener mixtures has so far had the following disadvantages: When used in operation, the stoichiometric ratios must be strictly adhered to and thorough mixing, otherwise the optimal properties of the cured casting will not be achieved. In addition, particularly in the case of cold-curing epoxy resin mixtures, if the amine hardener is mixed incorrectly, frequent exudation of the amine hardener occurs, which can lead to skin diseases due to its toxic effect. The same dangers are particularly evident in the case of cold-curing epoxy resin mixtures in the uncured state to a greater extent.
Experience has shown that entire company departments have to stop working due to skin diseases in the workforce or that those who work with such resins have to be constantly replaced by new ones. This is difficult insofar as working with the resins described requires the greatest accuracy, cleanliness and speed, which is why new forces have to be incorporated.
The previous types of packaging only allowed the resin and hardener to be stored separately and to be mixed before curing while strictly adhering to the conditions and taking into account the hazards that arise. Because of the difficulties and disadvantages mentioned, it was desirable to find a type of packaging which included unlimited shelf life, combining the two components in the exact ratio and the possibility of mixing shortly before the resin was used. The mixing process in the container itself must be able to be carried out in such a way that the person working with the resin does not come into contact with the contents. Mixing devices, agitators and others should also be used
No aids. These requirements are fully met by the method according to the present invention.
An embodiment is described with reference to the drawing.
The tube 1 consists of a resin-resistant approximately 0.4 mm thick film which opens out conically at the top into a thin neck 2. This is hermetically sealed by means of a head 3 consisting of the same piece. On the tube neck, also molded from the same material, there is the movable cover 4, which is introduced into the tube neck 2 vorüberge starting after cutting off the head 4 and expelling the air 5. The tube 1 contains the resin liquid 6. In the latter, the bag 7 which is resistant to the resin and the hardener and which is impermeable and which contains the amine hardener 8 floats loosely. The bag 7 consists of a thin one
Thermoplastic film whose thickness is a fraction of the
Wall of the tube 1 is about 0.05 mm. The bag can easily be blown open when the tube is hit.
The filling of the resin 6 into the tube 1 and the
Hardener 8 in the hardener bag 7 is carried out by automatic devices that are not the subject of the present invention. The hard resin packaging is sold completely closed as a tube.
The material used for the tube and the hardening bag is indifferent to the resin and hardener. The amount ratio of resin to
Hardener depends on the type of resin. The choice of the material for the tube and the hardener bag as well as the ratio of resin to hardener has to be made by the chemist and has to be monitored by him afterwards.
The handling of the tube is based on the list below.
1. Cut off the tube head 3.
2. Expel air 5 from tube 1 by compressing the latter by hand (hold tube neck 2 away from you).
3. Close the tube neck 2 with the lid 4.
4. Break the hardener bag 7 inside the tube 1 with a blow (edge of the hand). To do this, place the tube on a firm surface. Point the tube neck 2 away from you.
5. Mix the hardener with the resin by vigorously kneading and rubbing the tube for at least 30 seconds.
6. Pressing the mixture out of the tube 1.
Hold the tube neck 2 away from you. It should also be noted here that the resin-hardener mixture has a limited shelf life of about 2 hours at room temperature (18-20 C). Direct contact of the uncured mixture with unprotected skin should be avoided. The tubes are to be stored horizontally.
In addition to the advantages outlined above, working with this type of packaging makes a number of things easier. In addition to the simplicity of handling, which can be carried out by any layperson, there is a more efficient way of working when using larger quantities in companies. The operational hygiene is guaranteed by the airtightness of the packaging and the completely guaranteed cleanliness. All disease possibilities are switched off.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH260562A CH398446A (en) | 1962-03-01 | 1962-03-01 | Process for the preparation of an epoxy resin-hardener mixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH260562A CH398446A (en) | 1962-03-01 | 1962-03-01 | Process for the preparation of an epoxy resin-hardener mixture |
Publications (1)
Publication Number | Publication Date |
---|---|
CH398446A true CH398446A (en) | 1966-03-15 |
Family
ID=4237506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH260562A CH398446A (en) | 1962-03-01 | 1962-03-01 | Process for the preparation of an epoxy resin-hardener mixture |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH398446A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0078899A1 (en) * | 1981-11-11 | 1983-05-18 | Contraves Ag | Syringe for a sequential injection of two fluids into blood vessels of living bodies |
FR2719787A1 (en) * | 1994-05-10 | 1995-11-17 | Air Liquide | Prodn. of gaseous mixt. with small amt. of one gas mixed with carrier gas |
-
1962
- 1962-03-01 CH CH260562A patent/CH398446A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0078899A1 (en) * | 1981-11-11 | 1983-05-18 | Contraves Ag | Syringe for a sequential injection of two fluids into blood vessels of living bodies |
US4453934A (en) * | 1981-11-11 | 1984-06-12 | Contraves Ag | Injection syringe for the successive injection of two liquids into the blood vessels of living bodies |
FR2719787A1 (en) * | 1994-05-10 | 1995-11-17 | Air Liquide | Prodn. of gaseous mixt. with small amt. of one gas mixed with carrier gas |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3707852C2 (en) | ||
CH398446A (en) | Process for the preparation of an epoxy resin-hardener mixture | |
CH622752A5 (en) | Container for the storage of the powder component of a bone cement | |
DE6752434U (en) | CONTAINER | |
DE1761152A1 (en) | Container with removable lid | |
DE3208786A1 (en) | Two-chamber container with a destructible partition wall | |
DE2131964C3 (en) | Two-component system for mixing a dental impression material based on alginate | |
DE2838222A1 (en) | Sterile mixing of powder with fluid - by fluid ampoule inserted in flexible powder bag with burst membrane | |
DE924339C (en) | Process for the dispatch of medical examination material as well as containers for the implementation of the process | |
DE2658538A1 (en) | USE OF N,N-BIS-HYDROXYALKYL-3,5-DI-T-BUTYLANILINES AS ACTIVATOR FOR REDOX POLYMERIZATIONS OF UNSATURATED COMPOUNDS | |
DE671692C (en) | Process for the external treatment of cheese | |
AT227154B (en) | Use of double tubes for a process for mixing two-part resins | |
DE1198794B (en) | Storable plastic bag for carrying out chemical reactions | |
DE1297336B (en) | Children's modeling clay | |
DE710415C (en) | Glue for catching flies and other insects | |
DE803972C (en) | Process for the production of molded bodies from metal powders | |
DE1214145B (en) | Packaging for molding or sealing compounds in rod form for dental purposes | |
DE1806461U (en) | PILLOW PILLOW MADE OF PLASTIC WITH SCREW CAP. | |
US2315061A (en) | Protective composition of matter for users of x-rays | |
DE2556819A1 (en) | Mixing components for teeth fillings - using plastics capsule with adjustable quantity of one component injected from dispenser | |
DE528120C (en) | Sealing compound for containers, sheet metal boxes or the like. | |
DE2329988A1 (en) | Plastic packing bag for powdery material - has mixing fluid measuring channel surrounding enclosed building material mix of gypsum | |
DE1541115A1 (en) | Disposable shipping syringe | |
DE2430895A1 (en) | Protective plaster-based body screen for medicinal radiation - comprises sheath contg radiation absorbent filling and thermosetting resin | |
DE6914441U (en) | PACKING IN BAGS |