DE652068C - Lightweight insulating panel and process for its manufacture - Google Patents

Lightweight insulating panel and process for its manufacture

Info

Publication number
DE652068C
DE652068C DES116272D DES0116272D DE652068C DE 652068 C DE652068 C DE 652068C DE S116272 D DES116272 D DE S116272D DE S0116272 D DES0116272 D DE S0116272D DE 652068 C DE652068 C DE 652068C
Authority
DE
Germany
Prior art keywords
leather
pulp
waste
insulating panel
wood
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
DES116272D
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.)
Holzhandels Ges Silvana M B H
Original Assignee
Holzhandels Ges Silvana M B H
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 Holzhandels Ges Silvana M B H filed Critical Holzhandels Ges Silvana M B H
Priority to DES116272D priority Critical patent/DE652068C/en
Application granted granted Critical
Publication of DE652068C publication Critical patent/DE652068C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof
    • C08L89/04—Products derived from waste materials, e.g. horn, hoof or hair
    • C08L89/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dermatology (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Description

Leichtbau-Isolierplatte und Verfahren zu ihrer Herstellung Die Erfindung betrifft eine Leichtbau-Isolierplatte und ein Verfahren zu ihrer Herstellung. Die bekannten Leichtbauplatten werden in der Regel unter Verwendung chemischer Bindemittel, z. B. Kunstharze, hergestellt, die die verschiedenen in Vorschlag gebrachten Füllstoffe zusammenhalten. Die Herstellung erfordert daher zur Erzielung der wünschenswerten Isolierwirkung einerseits und Festigkeit andererseits einen gewissen Aufwand. Es ist ferner bekannt, für die Herstellung von Lederersatz und biegsamen Papptafeln einen Lederfaserbrei zu verwenden.Lightweight insulating panel and process for its production The invention relates to a lightweight insulating panel and a method for its production. the known lightweight panels are usually made using chemical binders, z. B. Synthetic resins, made containing the various proposed fillers stick together. The production therefore requires to achieve the desirable Isolation on the one hand and strength on the other hand require a certain amount of effort. It is also known for the manufacture of leather substitutes and pliable cardboard panels to use a leather pulp.

Die vorliegende Erfindung beruht auf der Erkenntnis, daß ein solcher Lederfaserbrei auch die Eigenschaften besitzt, um bei der Herstellung von Bauplatten Verwendung finden zu können. Das Wesen der Erfindung besteht darin, daß als Füll- uizd Bindemittel für den das Plattenmaterial bildenden pflanzlichen Faserstoffbrei ein Lederfaserbrei dient. Die erfindungsgemäßen Bauplatten verbinden eine gute Isolierfähigkeit mit ausreichender statischer Festigkeit. Die durch den Lederfaserbrei herbeigeführte, Hohlräume für die Isolierung frei lassende Bindung geht nämlich offenbar in zweierlei Richtungen vor sich, indem i. die Lederfaserteile sich an den einzelnen Teilen der Füllkörper verklammern und so die Füllkörperteile, z. B. Sägespäne, zu einem filzartigen Produkt zusammenschließen und indem 2. die im Leder enthaltenen Leimprodukte, die im Lederfaserbrei in dünner, wäßriger Lösung kolloidal vorhanden sind, in den verfilzten Lederfasern und Körpern des Füllmaterials zusammengehalten werden, während das überschüssige Wasser durch Abpressen entfernbar ist.The present invention is based on the finding that such Leather pulp also possesses the properties to be used in the manufacture of building panels To be able to find use. The essence of the invention is that as filling uizd Binder for the vegetable pulp that forms the panel material a leather pulp is used. The building boards according to the invention combine good insulating properties with sufficient static strength. The brought about by the leather pulp, Binding, which leaves voids free for insulation, apparently works in two ways Directions in front of you by i. the leather fiber parts are attached to the individual parts of the Clamp packing and so the packing parts, z. B. sawdust, to a felt-like Combining the product and adding 2. the glue products contained in the leather, the are colloidal in the leather fiber pulp in a thin, aqueous solution, in the matted ones Leather fibers and bodies of filler are held together while the excess Water can be removed by pressing.

Durch diese zweifache Wirkung ergibt sich bei dem nachfolgenden Trocknen eine Verfilzung und eine Verleimung der Platte.This twofold effect results in the subsequent drying matting and gluing of the plate.

Die Herstellung der Platte ist besonders wirtschaftlich deshalb, weil sie nahezu ausschließlich aus Abfallstoffen hergestellt werden kann, indem auch der Lederfaserbrei aus Lederabfällen besteht. Die Herstellung erfolgt vorteilhaft in der Weise, daß ein in einer Spezialmühle unter Wasserüberschuß gewonnener Lederfaserbrei den zur Verwendung kommenden Festkörpern zugesetzt und nach kurzer Aufweichungszeit und kräftigem Mischen, das z. B. durch einen zweiten Mahlvorgang erfolgen kann, von überschüssigem Wasser befreit und ohne oder mit Wärme unter Druck abgepreßt wird. Die auf diese Weise gewonnene Platte wird getrocknet und erhärtet während des Trockenvorgangs. Hierbei tritt die Verfilzung der Lederfasern und damit die völlige Bindung der Festkörper ein. je nach dem ausgeübten Druck und nach dem anteiligen Gehalt von Lederfaser und Feststoff entstehen Bauplatten von verschiedenem spezifischen Gewicht, Härte, Dichte und Isolierwert.The production of the plate is particularly economical because they can be made almost entirely from waste materials by also the leather pulp consists of leather waste. The production takes place advantageously in such a way that a leather fiber pulp obtained in a special mill with excess water added to the solids to be used and after a short softening time and vigorous mixing, e.g. B. can be done by a second grinding process, freed from excess water and pressed with or without heat under pressure will. The plate obtained in this way is dried and hardened during the drying process. This is where the felting of the leather fibers occurs and thus the complete binding of the solids. depending on the pressure applied and according to the proportionate content of leather fiber and solids, building boards are produced of different specific weight, hardness, density and insulation value.

Die Zerfaserung des Leders wird für diesen Zweck besonders günstig gestaltet, wenn die zur Anwendung kommenden Lederabfälle, zumal wenn es sich um Altleder handelt, vor dem Mahlen in schwacher Lauge, z. B. einer Sulfitablauge, geweicht und vorbehandelt werden.The fraying of the leather is particularly favorable for this purpose designed when the leather waste is used, especially when it comes to Used leather acts, before grinding in weak lye, e.g. B. a sulphite liquor, be soaked and pretreated.

Dem Faserbrei lassen sich ferner außer den genannten Festkörpern auch weitere an sich für Leichtbauplatten bekannte Mittel hinzusetzen, z. B. Asbestfasern oder andere, die Brennbarkeit herabsetzende Körper; ferner lassen sich die Struktur verbessernde oder das ganze Material konservierende und imprägnierende Substanzen beifügen.In addition to the solids mentioned, the pulp can also be used add further means known per se for lightweight panels, e.g. B. Asbestos fibers or other flammability-reducing bodies; Furthermore, the structure improving substances or substances that preserve and impregnate the entire material add.

Schließlich kann der Fabrikationsvorgang kontinuierlich gestaltet werden, indem Mahlung des Faserbreis, Mischung mit, den Festkörpern und die Wasserzufuhr laufend erfolgen und der entstehende Stoffbrei einer Langsiebmaschine zugeführt wird, die das, Formen, Abpressen und Trocknen kontinuierlich vornimmt.Finally, the manufacturing process can be designed to be continuous by grinding the pulp, mixing with, solids and adding water take place continuously and the resulting pulp is fed to a Fourdrinier machine that does this, molding, pressing and drying continuously.

Das Neuartige und Überraschende an dieser Leichtbauplatte besteht darin, daß eine völlig homogene und ausreichend feste Bindung der die Struktur bestimmenden Festkörper durch den eingebrachten Lederfaserbrei erzielt wird, ohne daß irgendwelche weiteren Bindemittel hinzugefügt werden müssen, selbst wenn die Füllkörper an sich nicht verfilzungs- und bindungsfähig sind.What is new and surprising about this lightweight panel is that it is in the fact that a completely homogeneous and sufficiently strong bond that determines the structure Solid body is achieved by the introduced leather fiber pulp, without any further binders need to be added, even if the packing is per se are not matted or bindable.

Claims (1)

PATENTANSPRÜCHE: i. Leichtbau-Isolierplatte, dadurch gekennzeichnet, daß als Füll- und Bindemittel für den das Plattenmaterial bildenden pflanzlichen Faserstoffbrei ein Lederfaserbrei dient. z. Verfahren zur Herstellung von Platten nach Anspruch i, dadurch gekennzeichnet, daß als Lederfaserbrei Abfallleder Verwendung findet, das in einer die Fasern erhaltenden Mühle erzeugt unter Vorbehandlung mit Alkalien oder einer Stoffbrühe aus Sulfitablauge und Lederabfällen zerfasert wurde. 3. Verfahren nach Anspruch i und dadurch gekennzeichnet, daß der zur Herstellung der Platten dienende Faserstoffbrei aus Sägespänen, Hobelspänen, Holzsplittern, Resten der Tannin- und Farbholzextraktion oder ähnlichen spezifisch leichten Körpern hergestellt wird. 4. Verfahren nach Anspruch i bis 3, dadurch gekennzeichnet, daß dem Faserstoftbrei an sich bekannte Zusätze, wie Asbestfasern oder Imprägnier-, Konservierungs- oder strukturverbessernde Stoffe, zugesetzt werden.PATENT CLAIMS: i. Lightweight insulating panel, characterized in that that as a filler and binder for the vegetable forming the plate material Pulp a leather pulp is used. z. Method of making panels according to claim i, characterized in that waste leather is used as the leather fiber pulp finds that is produced in a mill that preserves the fibers with pretreatment Alkalis or a stock made from sulphite waste liquor and leather waste. 3. The method according to claim i and characterized in that the production pulp used for the panels from sawdust, wood shavings, wood splinters, Remnants of the tannin and color wood extraction or similar specifically light bodies will be produced. 4. The method according to claim i to 3, characterized in that additives known per se to the pulp, such as asbestos fibers or impregnation, Preservation or structure-improving substances are added.
DES116272D 1934-11-28 1934-11-28 Lightweight insulating panel and process for its manufacture Expired DE652068C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES116272D DE652068C (en) 1934-11-28 1934-11-28 Lightweight insulating panel and process for its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES116272D DE652068C (en) 1934-11-28 1934-11-28 Lightweight insulating panel and process for its manufacture

Publications (1)

Publication Number Publication Date
DE652068C true DE652068C (en) 1937-10-25

Family

ID=7533852

Family Applications (1)

Application Number Title Priority Date Filing Date
DES116272D Expired DE652068C (en) 1934-11-28 1934-11-28 Lightweight insulating panel and process for its manufacture

Country Status (1)

Country Link
DE (1) DE652068C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE866595C (en) * 1948-10-02 1953-02-12 Norddeutsche Homogenholz Ges M Process for the production of molded fibrous bodies
EP2135892A2 (en) 2008-06-19 2009-12-23 Vogl, Wolfgang composite body

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE866595C (en) * 1948-10-02 1953-02-12 Norddeutsche Homogenholz Ges M Process for the production of molded fibrous bodies
EP2135892A2 (en) 2008-06-19 2009-12-23 Vogl, Wolfgang composite body
EP2135892A3 (en) * 2008-06-19 2011-03-02 Wolfgang Vogl Privatstiftung composite body

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