CH272159A - Process for the production of molded articles, in particular insulating panels, with the aid of sulphite cellulose waste liquor. - Google Patents

Process for the production of molded articles, in particular insulating panels, with the aid of sulphite cellulose waste liquor.

Info

Publication number
CH272159A
CH272159A CH272159DA CH272159A CH 272159 A CH272159 A CH 272159A CH 272159D A CH272159D A CH 272159DA CH 272159 A CH272159 A CH 272159A
Authority
CH
Switzerland
Prior art keywords
molded articles
production
waste liquor
aid
products
Prior art date
Application number
Other languages
German (de)
Inventor
Tibor Dr Holzer
Original Assignee
Tibor Dr Holzer
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 Tibor Dr Holzer filed Critical Tibor Dr Holzer
Publication of CH272159A publication Critical patent/CH272159A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00Compositions of proteins; Compositions of derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/22Natural resins, e.g. rosin
    • C04B26/24Cellulosic waste liquor, e.g. sulfite lye
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08HDERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H8/00Macromolecular compounds derived from lignocellulosic materials
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00Compositions of proteins; Compositions of derivatives thereof
    • C08L89/04Products derived from waste materials, e.g. horn, hoof or hair
    • C08L89/06Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00Compositions of lignin-containing materials
    • C08L97/02Lignocellulosic material, e.g. wood, straw or bagasse

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Dermatology (AREA)
  • Biochemistry (AREA)
  • Wood Science & Technology (AREA)
  • Structural Engineering (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Paper (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 245077.    <B>Verfahren zur Herstellung von Formartikeln,</B>     insbesondere   <B>Isolierplatten, mit Hilfe</B>  von     Sulfitzelluloseablauge.       Gegenstand des Hauptpatentes ist ein  Verfahren zur Herstellung von Formartikeln  mit Hilfe von durch Proteine ausgefällter       Sulfitzelluloseablauge,    das dadurch gekenn  zeichnet ist, dass .die     Sulfitablauge    zusammen  mit Proteinstoffen auf Substrate als Binde  mittel ausgefällt und das erhaltene Produkt  hernach verformt wird.  



  Die     Verformung    kann z. B. durch Giessen  in Formen unter Wärmebehandlung sowie  durch Kalt- oder Heisspressen erfolgen.  



  Als Substrate wurden zerkleinerte Schäl  späne, Steinmehl, Korkmehl, Sägemehl, gege  benenfalls unter Zusatz von Zement und  Wasserglas, erwähnt.  



  Während mit diesen Materialien herge  stellte Produkte insbesondere ausgezeichnete  Hartplatten für Bauzwecke ergeben, wurde  ferner gefunden,     -dass    wesentliche Verbesse  rungen der Struktur und Qualität insbeson  dere bei der Herstellung von Isolierplatten  erzielt werden können, wenn man als Sub  strate     zellulosehaltiges    Fasermaterial, wie  Holzschliff; Zellulose oder Altpapier, für  sich oder in Mischung miteinander, ver  wendet.  



  Die letztgenannte     Verbesserung    ist Gegen  stand des Zusatzpatentes Nr. 250268.  



  Es wurde nun gefunden, dass man als       Fällungsmittel    für die     Sulfitablauge    an  Stelle der im Hauptpatent genannten Pro  teinstoffe mit Vorteil Produkte verwenden  kann, die erhalten wurden durch sauren<B>Ab-</B>    bau von eiweisshaltigen     Materialien,    die  pflanzlichen oder tierischen Ursprungs sein  können, bis zur Wasserlöslichkeit.  



  Geeignete Ausgangsstoffe für die Her  stellung der vorerwähnten Abbauprodukte  sind Lederabfälle, Sojamehl, Hefe, insbeson  dere solche aus der     Holzverzuckerung    und  der Zellstoffindustrie,     usw.     



  Es hat sich überraschenderweise     gezeigt,     dass diese Abbauprodukte eine wesentliche  Qualitätsverbesserung hinsichtlich der Was  serbeständigkeit,     Härte,    Biege- und Zugfe  stigkeit der Formartikel bewirken, wenn diese  unter Wärmebehandlung und Druck ver  formt werden. Zudem haben diese Abbau  produkte den Vorteil der ausserordentlichen  Billigkeit.  



  Als Substrate eignen sich alle im Haupt  patent. Nr. 245077 sowie im Zusatzpatent  Nr. 250268 genannten Materialien. Auch die  sonstige Arbeitsweise entspricht den Angaben  dieser beiden Patente.  



  Ein Zusatz von     Formaldehyd    hat sich in  gewissen Fällen als     zweckmässig    erwiesen.    <I>Beispiel:</I>  500 Gewichtsteile Holzschliff werden mit  150 Gewichtsteilen     Sulfitablauge    von 6      Be    ,  vermischt, wonach man mit Alaun auf den  p$ 4,4 bis 4,5 einstellt. Zu     dieser    Mischung  gibt man 150 Gewichtsteile einer 10     o/oigen          wässrigen    Lösung von durch sauren Abbau      von     Lederabfällen    erhaltenen Produkten,  alles unter gutem     Rühren.     



  Die erhaltene Mischung wird vom über  stehenden Wasser durch     Abtropfenlassen    be  freit, verformt und unter einem Druck von  50 bis 70     kg/cm=,    unter gleichzeitigem Er  hitzen     auf    170 bis 220  C, nachbehandelt.



  <B> Additional patent </B> to main patent no. 245077. <B> Process for the production of molded articles, </B> in particular <B> insulating plates, with the help of </B> sulphite cellulose liquor. The main patent relates to a process for the production of molded articles with the aid of sulfite cellulose liquor precipitated by proteins, which is characterized in that the sulfite waste liquor is precipitated together with protein substances on substrates as a binding agent and the product obtained is then shaped.



  The deformation can e.g. B. by casting in molds with heat treatment and by cold or hot pressing.



  Comminuted peeling shavings, stone meal, cork meal, sawdust, if necessary with the addition of cement and water glass, were mentioned as substrates.



  While with these materials herge presented products in particular give excellent hardboards for building purposes, it was also found that substantial improvements in structure and quality, in particular in the manufacture of insulating panels, can be achieved if cellulosic fiber material such as wood pulp is used as a substrate; Cellulose or waste paper, on its own or in a mixture with one another, is used.



  The latter improvement is the subject of additional patent no. 250268.



  It has now been found that instead of the protein substances mentioned in the main patent, as precipitating agents for the sulphite waste liquor, it is possible to use advantageously products which have been obtained by acidic degradation of proteinaceous materials of vegetable or animal origin can be, up to water solubility.



  Suitable starting materials for the manufacture of the aforementioned degradation products are leather waste, soy flour, yeast, especially those from the saccharification of wood and the pulp industry, etc.



  It has surprisingly been found that these degradation products bring about a significant improvement in quality with regard to the water resistance, hardness, bending and tensile strength of the molded articles when they are deformed under heat treatment and pressure. In addition, these mining products have the advantage of being extremely cheap.



  All of the substrates in the main patent are suitable as substrates. No. 245077 as well as materials mentioned in the additional patent No. 250268. The other way of working also corresponds to the information in these two patents.



  Adding formaldehyde has proven to be useful in certain cases. <I> Example: </I> 500 parts by weight of ground wood are mixed with 150 parts by weight of sulphite waste liquor of 6 Be, after which the p $ 4.4 to 4.5 is adjusted with alum. 150 parts by weight of a 10% aqueous solution of products obtained by acidic degradation of leather waste are added to this mixture, all with thorough stirring.



  The mixture obtained is freed from the excess water by allowing it to drip off, shaped and aftertreated under a pressure of 50 to 70 kg / cm =, with simultaneous heating to 170 to 220 ° C.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Form artikeln, insbesondere Isolierplatten, durch Ausfällung von Sulfitzelluloseablauge auf Substrate und Verformung des erhaltenen Produktes unter Druck und Wärmebehand lung, dadurch gekennzeichnet, dass man als Fällungsmittel Produkte verwendet, die er halten wurden durch sauren Abbau von eiweisshaltigen Materialien bis zur Wasser löslichkeit. UNTERANSPRÜCHE: 1. Verfahren nach Patentanspruch, da durch gekennzeichnet, da.ss man Abbaupro dukte von Ledemabfällen verwendet. 2. PATENT CLAIM: A process for the production of molded articles, in particular insulating plates, by precipitating sulphite cellulose waste liquor on substrates and shaping the product obtained under pressure and heat treatment, characterized in that the precipitating agent used is products that were obtained by acidic degradation of proteinaceous materials for water solubility. SUBClaims: 1. Method according to patent claim, characterized in that da.ss one uses degradation products from leather waste. 2. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man Abbaupro dukte von Sojamehl verwendet. 3. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man Abbaupro dukte von Hefe verwendet. Method according to claim, characterized in that degradation products of soy flour are used. 3. The method according to claim, characterized in that Abbaupro products of yeast are used.
CH272159D 1946-01-09 1949-07-26 Process for the production of molded articles, in particular insulating panels, with the aid of sulphite cellulose waste liquor. CH272159A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH620061X 1946-01-09
CH272159T 1949-07-26

Publications (1)

Publication Number Publication Date
CH272159A true CH272159A (en) 1950-11-30

Family

ID=25731348

Family Applications (1)

Application Number Title Priority Date Filing Date
CH272159D CH272159A (en) 1946-01-09 1949-07-26 Process for the production of molded articles, in particular insulating panels, with the aid of sulphite cellulose waste liquor.

Country Status (1)

Country Link
CH (1) CH272159A (en)

Similar Documents

Publication Publication Date Title
CH272159A (en) Process for the production of molded articles, in particular insulating panels, with the aid of sulphite cellulose waste liquor.
DE845392C (en) Process for the production of molded bodies from fibers and lignosulfonic acid protein as a binder
AT163171B (en) Process for the production of molded articles from fibers and a binder
DE956865C (en) Process for the production of a veneer glue for gluing flat and shaped wood
CH250268A (en) Process for the production of molded articles, in particular insulating panels, with the aid of sulphite cellulose waste liquor.
DE712122C (en) Process for the production of plastics, which mainly consist of starch
DE716428C (en) Process for the production of binders from keratin-containing proteins
DE713039C (en) Process for the production of protein-containing plastic masses from urea or the like and formaldehyde
DE358541C (en) Method for producing a plastic mass
DE812479C (en) Process for the production of a material suitable for the manufacture of tobacco pipes
DE69306C (en) Manufacture of a material similar to whalebone from hair
DE523212C (en) Process for the production of a plastic mass from cork
DE736769C (en) Process for the production of plastic masses and molded bodies from them
DE427911C (en) Process for the production of wooden objects
DE878441C (en) Process for the production of artificial masses
DE519758C (en) Process for the production of a plastic mass from cork
DE967902C (en) Process for the production of panels or bodies from malleable synthetic wood masses
DE518500C (en) Insulating compound
DE896108C (en) Process for the production of thermoplastics from proteins and aminoplasts or their components
DE912630C (en) Process for the production of polycondensation products
DE642398C (en) Process for the production of plastic masses and molded bodies from them
AT149366B (en) Process for the production of welded masses using phenol carbonyl condensation products.
DE186388C (en)
AT86212B (en) Process for the production of plastic masses from yeast and formaldehyde.
CH274859A (en) Process for the production of an artificial cork mass.