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DE813598C - Process for the continuous production of foam masses from resins, glues and the like. like - Google Patents

Process for the continuous production of foam masses from resins, glues and the like. like

Info

Publication number
DE813598C
DE813598C DEB2381A DEB0002381A DE813598C DE 813598 C DE813598 C DE 813598C DE B2381 A DEB2381 A DE B2381A DE B0002381 A DEB0002381 A DE B0002381A DE 813598 C DE813598 C DE 813598C
Authority
DE
Germany
Prior art keywords
foam
glues
resins
glue
solution
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
DEB2381A
Other languages
German (de)
Other versions
DE1614924U (en
Inventor
Johann Lenz
Hans Dr Scheuermann
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB2381A priority Critical patent/DE813598C/en
Application granted granted Critical
Publication of DE813598C publication Critical patent/DE813598C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/30Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (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

Es wurde gefunden, daß man in technisch einfacher Weise Schaummassen aus Harzen, Leimen u. dgl. herstellen kann, wenn in einen einseitig geschlossenen Rührbehälter an dem geschlossenen Teil des Behälters Schaummittellösung und Luft eingeführt werden, in den daraus gebildeten Schaum an einer dem Ausgang genäherten Stelle die Lösung eines Harzes, Leimes o. dgl. eingeführt und unter starkem Rühren untergemischt und der entstandene Harz- oder Leimschaum durch den Überdruck der eingeführten Luft zum offenen Ende des Rührgefäßes hin und dort hinausgefördert wird.It has been found that foam compositions can be produced in a technically simple manner from resins, glues and the like, if in a closed on one side Mixing tank on the closed part of the tank foaming agent solution and air are introduced into the foam formed therefrom at a point close to the exit Place the solution of a resin, glue or the like. Introduced and with vigorous stirring mixed in and the resulting resin or glue foam by the overpressure of the introduced air to the open end of the stirred vessel and out there will.

Das Verfahren sei an Hand der Abbildung näher erläutert. In den senkrecht angeordneten, oben geschlossenen, zylindrischen Rührbehälter i tritt bei 2 die Schaummittellösung ein. An einer tieferliegenden Stelle 3 wird die zur Erzeugung des Schaumes notwendige Luft unter geringem Druck eingeführt, wobei die Lösung aufschäumt. Wenig unterhalb dieser Einführungsstelle (bei 4) wird die den wäßrigen Schaum verfestigende wäßrige Lösung eines Harzes, Leimes o. dgl. zugeführt. Die Rührwelle 5 ist zweckmäßig in geschlossener Stopfbüchse gelagert, damit nach oben hin keine Luft entweichen kann. Durch den vollkom= menen Abschluß des Rührgefäßes nach oben hin befindet sich die entstandene Schaummasse unter einem gewissen Überdruck, der sie kontinuierlich durch eine am Boden des Rührgefäßes befindliche Öffnung 6 ohne jede Verstopfung gleichmäßig herausdrückt, was noch durch das nach unten hin arbeitende Rührwerk unterstützt wird. Durch Anbau geeigneter Formen an diese Austrittsöffnung kann der Schaummasse leicht jede gewünschte Form gegeben werden. So kann z. B., wie in der Abbildung ausgeführt, die Schaummasse in einem fortlaufenden Band bis zur Dicke von gewünschtenfalls mehreren Zentimetern oder Dezimetern abgenommen werden. Hierdurch kann weitgehend das bisher bei der Herstellung derartiger Schaummassen übliche Abfüllen des Schaumes in Formen bis zur Erstarrung unterbleiben. Außer dem quadratischen oder rechteckigen Querschnitt kann der die Apparatur verlassenden Schaummasse auch jede beliebige andere Form, z. B. die Form von Schalen oder Kreissegmenten, verliehen werden. Die Raummenge der den Apparat verlassenden Schaummasse ist abhängig von der eingeleiteten Menge Luft, der verwendeten Menge Schaummittel und Leim- oder Harzlösung u. dgl., und es lassen sich deshalb, insbesondere durch Variation der eingeführten Mengen Luft und Leim- oder Harzlösung u. dgl., Schäume von den verschiedensten spezifischen Gewichten herstellen.The method is explained in more detail using the illustration. In the vertical arranged, closed at the top, cylindrical stirred tank i, the foaming agent solution occurs at 2 a. At a lower point 3 is the one necessary to generate the foam Air is introduced under low pressure, whereby the solution foams. A little below This introduction point (at 4) is the aqueous foam solidifying the aqueous foam Solution of a resin, glue or the like. Supplied. The agitator shaft 5 is useful in stored in a closed stuffing box so that no air can escape upwards. The complete closure of the mixing vessel at the top means that the resulting foam mass under a certain excess pressure, which it continuously through an opening 6 located at the bottom of the mixing vessel evenly without any blockage pushes out what is still supported by the agitator working downwards will. By adding suitable shapes to this outlet opening, the foam mass can easily be given any shape you want. So z. B., as in the picture executed the foam mass in a continuous band to the thickness of if desired several centimeters or decimeters. This can largely the filling of the foam, which has hitherto been customary in the production of such foam compositions cease in molds until they solidify. Except the square or rectangular one The foam mass leaving the apparatus can also have any cross section other shape, e.g. B. the shape of bowls or segments of a circle are given. the The volume of foam leaving the apparatus depends on the amount of foam introduced Amount of air, the amount of foam concentrate and glue or resin solution used, etc., and it can therefore, in particular by varying the quantities introduced Air and glue or resin solution and the like, foams of various specifics Making weights.

Der Rührbehälter i muß nicht unbedingt senkrecht, sondern kann auch waagerecht oder sonstwie angeordnet sein. Wichtig ist, daß er an der der Austragseite gegenüberliegenden Seite geschlossen ist. Beispiel i In ein Rührgefäß von 701 Inhalt (gemäß der Ab-Bildung) werden je Minute 390 ccm eines Gemisches aus 6 g dibutylnaphthalinsulfonsaurem Natrium, 28 ccm 5o%ige Phosphorsäure und 36o ccm Wasser (bei 2) eingesprüht. Ferner werden in das Gefäß (bei 3) je Minute 32 1 Luft und (bei, 4) 990 ccm einer in üblicher Weise hergestellten etwa 38%igen Kondensationslösung aus Harnstoff und Formaldeyd gedrückt. Bei raschlaufendem Rührwerk (etwa 300 Umdrehungen) verlassen das Gefäß je Minute 32 1 eines sehr feinporigen und homogenen Kunstharzschaumes. Beispiel e Wie in Beispiel i beschrieben, werden in den Rührbehälter 40 1 Luft, iooo ccm einer Lösung aus 120 g dibutylnaphthalinsulfonsaurem Natrium, 36o ccm Wasser und 2000 ccm Formaldehyd, 3oo/oig, sowie iooo g einer 35° warmen 25%igen Hautteimlösung je Minute gedrückt. Den Behälter verlassen in der gleichen -Zeit etwa 35 bis 401 einer feinporigen Schaummasse. Beispiel 3 Nach der Arbeitsweise von Beispiel i werden in den Rührbehälter je Minute 8o 1 Luft, 99o ccm einer 45 0%igen Lösung eines Harzes, das durch Kondensation von 3 Mol Formaldehyd, 1,5 Mol Harnstoff und o,2 Mol Phenol hergestellt wurde, sowie 39o ccm eines Gemisches aus io g dibutylnaphthalinsulfonsaurem Natrium, 9o ccm Phosphorsäure, 5oo/oig, und 25o ccm Wasser eingeführt. Die Menge des den Behälter kontinuierlich verlassenden Schaums beträgt je Minute 701.The stirred tank i need not necessarily be vertical, but can also be arranged horizontally or in some other way. It is important that it is closed on the side opposite the discharge side. EXAMPLE i 390 cc of a mixture of 6 g of sodium dibutylnaphthalenesulfonic acid, 28 cc of 50% phosphoric acid and 36o cc of water (at 2) are sprayed into a stirred vessel with a capacity of 701 (according to the illustration). In addition, 32 liters of air per minute and (at .4) 990 cc of an approximately 38% condensation solution of urea and formaldehyde prepared in the usual way are pressed into the vessel (at 3). With the agitator running rapidly (approx. 300 revolutions), 32 liters of a very fine-pored and homogeneous synthetic resin foam leave the vessel every minute. EXAMPLE e As described in Example i, 40 liters of air, 1000 ccm of a solution of 120 g of sodium dibutylnaphthalenesulfonic acid, 36o ccm of water and 2000 ccm of formaldehyde, 3oo / oig, and 1000 g of a 35 ° warm 25% skin paste solution are added to the stirred container Minute. About 35 to 401 of a fine-pored foam compound leave the container in the same time. EXAMPLE 3 Following the procedure of Example i, 8o 1 of air, 99o ccm of a 45% strength solution of a resin produced by condensation of 3 moles of formaldehyde, 1.5 moles of urea and 0.2 moles of phenol are put into the stirred tank every minute , and 39o cc of a mixture of 10 g of sodium dibutylnaphthalenesulfonic acid, 90 cc of phosphoric acid, 500 per cent, and 25o cc of water. The amount of foam continuously leaving the container is 701 per minute.

Die gemäß vorstehenden Beispielen hergestellten Schäume werden bei gewöhnlicher oder erhöhter Temperatur getrocknet und anschließend in die für Isolierzwecke notwendigen Formgrößen geschnitten.The foams produced according to the preceding examples are at normal or elevated temperature and then dried for insulation purposes necessary shape sizes.

Claims (2)

PATENTANSPROCHE: i. Verfahren zur kontinuierlichen Herstellung von Schaummassen aus Harzen, Leimen o. dgl., dadurch gekennzeichnet, daß in einem einseitig geschlossenen Rührbehälter an dem gegeschlossenen Teil des Behälters Schaummittellösung und Luft eingeführt werden, in den daraus gebildeten Schaum an einer dem Ausgang genäherten Stelle die Lösung eines Harzes, Leimes o. dgl. eingeführt und unter starkem Rühren untergemischt und der entstandene Kunstharz- oder Leimschaum durch die unter Überdruck eingeführte Luft zum offenen Ende des Rührgefäßes hin und dort hinausgefördert wird. PATENT CLAIM: i. Process for the continuous production of Foam compositions made from resins, glues or the like, characterized in that one-sided closed stirred tank on the closed part of the tank foaming agent solution and air is introduced into the foam formed therefrom at one of the exit approximated place the solution of a resin, glue o. The like. Introduced and under strong Stir mixed in and the resulting synthetic resin or glue foam through the under Air introduced overpressure is conveyed to and out of the open end of the stirred vessel will. 2. Verfahren gemäß Anspruch i, dadurch gekennzeichnet, daß der unter Überdruck stehende Schaum nach Passieren des Austrittsschlitzes durch Anschließen geeignet geformter Röhren in endlose Profilstücke übergeführt wird.2. The method according to claim i, characterized in that the under pressure standing foam after passing the outlet slit suitable by connecting formed tubes is converted into endless profile pieces.
DEB2381A 1950-03-04 1950-03-04 Process for the continuous production of foam masses from resins, glues and the like. like Expired DE813598C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB2381A DE813598C (en) 1950-03-04 1950-03-04 Process for the continuous production of foam masses from resins, glues and the like. like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB2381A DE813598C (en) 1950-03-04 1950-03-04 Process for the continuous production of foam masses from resins, glues and the like. like

Publications (1)

Publication Number Publication Date
DE813598C true DE813598C (en) 1951-09-13

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Family Applications (1)

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DEB2381A Expired DE813598C (en) 1950-03-04 1950-03-04 Process for the continuous production of foam masses from resins, glues and the like. like

Country Status (1)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959408C (en) * 1952-11-16 1957-03-07 Basf Ag Process for the production of foams from solutions of curable synthetic resins
DE1043628B (en) * 1953-08-20 1958-11-13 Wilhelm Bauer Device for the continuous production of synthetic resin foam
DE1069371B (en) * 1959-11-19
DE1073196B (en) * 1952-04-17 1960-01-14 The Dow Chemical Company, Midland, Mich. (V. St. A.) Process for the production of a cellular elongated product
DE1109880B (en) * 1958-05-12 1961-06-29 Liselotte Sauer Process for the production of a sponge-like insulating material from polyamides
DE1169116B (en) * 1954-08-19 1964-04-30 Schaum Chemie Wilhelm Bauer K Process to provide bodies, structural elements or components with a porous synthetic resin layer
DE1170615B (en) * 1953-04-14 1964-05-21 Werner H Kreidl Dr Method for producing urea resin foam
DE1212292B (en) * 1952-07-31 1966-03-10 Lonza Ag Process for the production of cell bodies with closed cells from thermoplastic material
DE1243378B (en) * 1957-02-25 1967-06-29 Forsch Process and device for the continuous production of fine foams

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069371B (en) * 1959-11-19
DE1073196B (en) * 1952-04-17 1960-01-14 The Dow Chemical Company, Midland, Mich. (V. St. A.) Process for the production of a cellular elongated product
DE1212292B (en) * 1952-07-31 1966-03-10 Lonza Ag Process for the production of cell bodies with closed cells from thermoplastic material
DE959408C (en) * 1952-11-16 1957-03-07 Basf Ag Process for the production of foams from solutions of curable synthetic resins
DE1170615B (en) * 1953-04-14 1964-05-21 Werner H Kreidl Dr Method for producing urea resin foam
DE1043628B (en) * 1953-08-20 1958-11-13 Wilhelm Bauer Device for the continuous production of synthetic resin foam
DE1169116B (en) * 1954-08-19 1964-04-30 Schaum Chemie Wilhelm Bauer K Process to provide bodies, structural elements or components with a porous synthetic resin layer
DE1243378B (en) * 1957-02-25 1967-06-29 Forsch Process and device for the continuous production of fine foams
DE1109880B (en) * 1958-05-12 1961-06-29 Liselotte Sauer Process for the production of a sponge-like insulating material from polyamides

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