AT80443B - Process for the aftertreatment of formaldehyde-impregnated wood. impregnated woods. - Google Patents

Process for the aftertreatment of formaldehyde-impregnated wood. impregnated woods.

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Publication number
AT80443B
AT80443B AT80443DA AT80443B AT 80443 B AT80443 B AT 80443B AT 80443D A AT80443D A AT 80443DA AT 80443 B AT80443 B AT 80443B
Authority
AT
Austria
Prior art keywords
impregnated
formaldehyde
aftertreatment
wood
woods
Prior art date
Application number
Other languages
German (de)
Original Assignee
Luftschiffbau Schuette Lanz Lu
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 Luftschiffbau Schuette Lanz Lu filed Critical Luftschiffbau Schuette Lanz Lu
Application granted granted Critical
Publication of AT80443B publication Critical patent/AT80443B/en

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  • Chemical And Physical Treatments For Wood And The Like (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Nachbehandlung von mit Formaldehyd imprägnierten Hölzern. 



   Bekanntlich behalten die durch Imprägnieren mit Formaldehyd wasserfest gemachten   Holzgegenstände geringe Mengen   des   Formaldehydgases   äusserst fest, die schwer zu entfernen sind, aber bewirken, dass bei nachheriger weiterer Verleimung des Holzes der Leim am Holz 
 EMI1.1 
 Oxydationsmittel zerstört. Das Verfahren kann z. B. in der Weise durchgeführt werden, dass man die weiter zu verleimenden Stellen des Holzes mit einer Lösung von Ammoniak und Wasserstoffsuperoxyd bestreicht, was dann zur Folge hat, dass nach Eintrocknen der Leim an diesen Stellen einwandfrei haftet. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the post-treatment of wood impregnated with formaldehyde.



   It is known that wooden objects made waterproof by impregnation with formaldehyde retain small amounts of the formaldehyde gas extremely firmly, which are difficult to remove, but have the effect that when the wood is subsequently further glued, the glue on the wood
 EMI1.1
 Oxidizing agent destroyed. The method can e.g. B. be carried out in such a way that the areas of the wood to be glued are coated with a solution of ammonia and hydrogen peroxide, which then has the consequence that after the glue has dried, the glue adheres perfectly to these areas.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Nachbehandlung von mit Formaldehyd imprägnierten Holzgegenständen, dadurch gekennzeichnet, dass die zu leimenden Stellen vor der Leimung mit einem alkalischen Oxydationsmittel behandelt werden, um ihre Leimfähigkeit wieder herzustellen. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the aftertreatment of wooden objects impregnated with formaldehyde, characterized in that the areas to be glued are treated with an alkaline oxidizing agent before gluing in order to restore their gluing properties. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT80443D 1917-08-09 1917-08-09 Process for the aftertreatment of formaldehyde-impregnated wood. impregnated woods. AT80443B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT80443T 1917-08-09

Publications (1)

Publication Number Publication Date
AT80443B true AT80443B (en) 1920-04-10

Family

ID=3601964

Family Applications (1)

Application Number Title Priority Date Filing Date
AT80443D AT80443B (en) 1917-08-09 1917-08-09 Process for the aftertreatment of formaldehyde-impregnated wood. impregnated woods.

Country Status (1)

Country Link
AT (1) AT80443B (en)

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