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AT228515B - - Google Patents

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Publication number
AT228515B
AT228515B AT812460A AT812460A AT228515B AT 228515 B AT228515 B AT 228515B AT 812460 A AT812460 A AT 812460A AT 812460 A AT812460 A AT 812460A AT 228515 B AT228515 B AT 228515B
Authority
AT
Austria
Prior art keywords
sep
melamine
formaldehyde
cracking
desc
Prior art date
Application number
AT812460A
Other languages
German (de)
Original Assignee
Sueddeutsche Kalkstickstoff-Werke Aktiengesellschaft
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 Sueddeutsche Kalkstickstoff-Werke Aktiengesellschaft filed Critical Sueddeutsche Kalkstickstoff-Werke Aktiengesellschaft
Application granted granted Critical
Publication of AT228515B publication Critical patent/AT228515B/de

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08L61/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C08L61/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G14/00—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
    • C08G14/02—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes
    • C08G14/04—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols
    • C08G14/06—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols and monomers containing hydrogen attached to nitrogen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
    • C09D161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C09D161/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C09D161/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C08L2666/14—Macromolecular compounds according to C08L59/00 - C08L87/00; Derivatives thereof
    • C08L2666/16—Addition or condensation polymers of aldehydes or ketones according to C08L59/00 - C08L61/00; Derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



   Verwendung von Melamin-Formaldehyd-Harzen zum Überziehen von Faserstoff-, Sperrholz- oder Spanplatten 
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 



   Es ist weiterhin möglich, die an sich gute Fliessfähigkeit der genannten Harze erforderlichenfalls durch Zusatz geeigneter, an sich in der Anwendung bekannter Produkte, wie z. B. Polyalkohole oder Zuckerderivate, noch zu erhöhen. 



   Beispiel : Es werden Harze mit den folgenden molaren Verhältnissen von Melamin zu Formaldehyd hergestellt bzw. entsprechende Produkte des Handels zum Vergleich bis zu einer Harzkonzentration von 50 bis   55'10   in Wasser gelost :
1 :1,4;1:1,7;1:2,0;1:2,7. 



   Mit diesen Harzen werden Dekorpapiere von 150 g/m2 Gewicht und Barrierepapiere mit 80 g/m2 Gewicht imprägniert. Die getrockneten Filme werden bei einer Temperatur von 1500C und einem Druck von 10 bis 20   kg/cm2   10 min lang beidseitig auf eine Spanplatte von 9 mm Stärke gepresst. Vor Entfernung der veredelten Spanplatte aus der Presse wird unter vollem Pressdruck auf 40 - 50 C rückgekühlt. 



   Zur Prüfung auf   Rissanfälligkeit   werden die Proben bei konstanten Klimabedingungen   (20 C, 65 0   rel. 



  Luftfeuchtigkeit) gelagert. Ein Teil der Proben wird nach mindestens 8tägiger Lagerung 4 h auf 1400C erwärmt und anschliessend wieder 20 h lang unter den angegebenen Klimabedingungen gelagert. Diese Prozedur wird bis zur Rissbildung, maximal jedoch fünfmal, wiederholt. Die Ergebnisse sind in der nachfolgenden Tabelle zusammengefasst. 
 EMI2.1 
 
<tb> 
<tb> 



  Harzart <SEP> Harzaufnahme <SEP> Pressdruck <SEP> Alterungsbeständigkeit
<tb> (Molverhältnis) <SEP> des <SEP> Dekorpa- <SEP> (k/cm) <SEP> Makro-Rissbildung <SEP> Mikro-Rissbildung
<tb> piers <SEP> (10) <SEP> 
<tb> 1 <SEP> : <SEP> 2, <SEP> 7 <SEP> 142 <SEP> 20 <SEP> 3 <SEP> Wochen <SEP> Lagerung <SEP> bei
<tb> Raumtemperatur
<tb> 1 <SEP> : <SEP> 2. <SEP> 7 <SEP> 150 <SEP> 20 <SEP> lmal <SEP> 4 <SEP> h <SEP> bei <SEP> 140 C
<tb> 1 <SEP> : <SEP> 2, <SEP> 7 <SEP> 152 <SEP> 15 <SEP> - <SEP> 3 <SEP> Wochen <SEP> Lagerung <SEP> bei <SEP> 
<tb> Raumtemperatur
<tb> "Mikrorissbildung"
<tb> 1 <SEP> : <SEP> 2, <SEP> 0 <SEP> 134 <SEP> 20 <SEP> 1mal <SEP> 4 <SEP> h <SEP> bei <SEP> 1400C <SEP> - <SEP> 
<tb> 1 <SEP> :

   <SEP> 2, <SEP> 0 <SEP> 169 <SEP> 10 <SEP> 3mal <SEP> 4 <SEP> h <SEP> bei <SEP> 140 C <SEP> 2 <SEP> Wochen <SEP> Lagerung <SEP> bei
<tb> Raumtemperatur <SEP> starke
<tb> "Mikrorissbildung"
<tb> 1 <SEP> : <SEP> 1, <SEP> 7 <SEP> 150 <SEP> 20 <SEP> 2mal4 <SEP> h <SEP> bei <SEP> 1400C <SEP> - <SEP> 
<tb> 1 <SEP> : <SEP> 1, <SEP> 7 <SEP> 172 <SEP> 10 <SEP> 1mal4 <SEP> h <SEP> bei <SEP> 1400C <SEP> - <SEP> 
<tb> 1 <SEP> : <SEP> 1, <SEP> 4 <SEP> 142 <SEP> 10 <SEP> keine <SEP> Risse <SEP> nach <SEP> 5mal <SEP> 4 <SEP> h <SEP> bei <SEP> 140 C
<tb> 1 <SEP> : <SEP> 1, <SEP> 4 <SEP> 158 <SEP> 20 <SEP> keine <SEP> Risse <SEP> nach <SEP> 5mal <SEP> 4 <SEP> h <SEP> bei <SEP> 140 C
<tb> 1 <SEP> :

   <SEP> 1, <SEP> 4 <SEP> 173 <SEP> 10 <SEP> keine <SEP> Risse <SEP> nach <SEP> 5mal <SEP> 4 <SEP> h <SEP> bei <SEP> 1400C
<tb> (15 <SEP> mm <SEP> Platte)
<tb> 
 
Melaminformaldehydharze mit einem Molverhältnis Melamin zu Formaldehyd von   1 : 1   bis 1 : 20 sind bekannt. 

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



   <Desc / Clms Page number 1>
 



   Use of melamine-formaldehyde resins to cover fiber, plywood or chipboard
 EMI1.1
 

 <Desc / Clms Page number 2>

 



   It is also possible to improve the inherently good flowability of the resins mentioned, if necessary by adding suitable products which are known in their application, such as. B. polyalcohols or sugar derivatives, to increase.



   Example: Resins with the following molar ratios of melamine to formaldehyde are produced or corresponding commercial products are dissolved in water up to a resin concentration of 50 to 55.10 for comparison:
1: 1.4; 1: 1.7; 1: 2.0; 1: 2.7.



   These resins are used to impregnate decor papers with a weight of 150 g / m2 and barrier papers with a weight of 80 g / m2. The dried films are pressed at a temperature of 1500C and a pressure of 10 to 20 kg / cm2 for 10 minutes on both sides of a chipboard 9 mm thick. Before removing the finished chipboard from the press, it is cooled back to 40 - 50 C under full pressure.



   To test for susceptibility to cracking, the samples are subjected to constant climatic conditions (20 C, 65 0 rel.



  Humidity). After storage for at least 8 days, some of the samples are heated to 140 ° C. for 4 hours and then stored again for 20 hours under the specified climatic conditions. This procedure is repeated until cracks form, but no more than five times. The results are summarized in the table below.
 EMI2.1
 
<tb>
<tb>



  Resin type <SEP> Resin absorption <SEP> Press pressure <SEP> Aging resistance
<tb> (molar ratio) <SEP> des <SEP> Dekorpa- <SEP> (k / cm) <SEP> Macro-cracking <SEP> Micro-cracking
<tb> piers <SEP> (10) <SEP>
<tb> 1 <SEP>: <SEP> 2, <SEP> 7 <SEP> 142 <SEP> 20 <SEP> 3 <SEP> weeks <SEP> storage <SEP> at
<tb> room temperature
<tb> 1 <SEP>: <SEP> 2. <SEP> 7 <SEP> 150 <SEP> 20 <SEP> once <SEP> 4 <SEP> h <SEP> at <SEP> 140 C
<tb> 1 <SEP>: <SEP> 2, <SEP> 7 <SEP> 152 <SEP> 15 <SEP> - <SEP> 3 <SEP> weeks <SEP> storage <SEP> at <SEP>
<tb> room temperature
<tb> "micro-cracking"
<tb> 1 <SEP>: <SEP> 2, <SEP> 0 <SEP> 134 <SEP> 20 <SEP> 1 time <SEP> 4 <SEP> h <SEP> at <SEP> 1400C <SEP> - < SEP>
<tb> 1 <SEP>:

   <SEP> 2, <SEP> 0 <SEP> 169 <SEP> 10 <SEP> 3 times <SEP> 4 <SEP> h <SEP> at <SEP> 140 C <SEP> 2 <SEP> weeks <SEP> storage <SEP> at
<tb> room temperature <SEP> strong
<tb> "micro-cracking"
<tb> 1 <SEP>: <SEP> 1, <SEP> 7 <SEP> 150 <SEP> 20 <SEP> 2 times4 <SEP> h <SEP> at <SEP> 1400C <SEP> - <SEP>
<tb> 1 <SEP>: <SEP> 1, <SEP> 7 <SEP> 172 <SEP> 10 <SEP> 1 time 4 <SEP> h <SEP> at <SEP> 1400C <SEP> - <SEP>
<tb> 1 <SEP>: <SEP> 1, <SEP> 4 <SEP> 142 <SEP> 10 <SEP> no <SEP> cracks <SEP> after <SEP> 5 times <SEP> 4 <SEP> h < SEP> at <SEP> 140 C
<tb> 1 <SEP>: <SEP> 1, <SEP> 4 <SEP> 158 <SEP> 20 <SEP> no <SEP> cracks <SEP> after <SEP> 5 times <SEP> 4 <SEP> h < SEP> at <SEP> 140 C
<tb> 1 <SEP>:

   <SEP> 1, <SEP> 4 <SEP> 173 <SEP> 10 <SEP> no <SEP> cracks <SEP> after <SEP> 5 times <SEP> 4 <SEP> h <SEP> at <SEP> 1400C
<tb> (15 <SEP> mm <SEP> plate)
<tb>
 
Melamine-formaldehyde resins with a melamine to formaldehyde molar ratio of 1: 1 to 1:20 are known.

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

Claims (1)

PATENTANSPRÜCHE : 1. Verwendung von Melaminformaldehydharzen im Molverhältnis Melamin zu Formaldehyd von 1 : 1, 1 bis 1, 8, vorzugsweise 1 : 1, 3 bis 1, 5, zum Überziehen von Faserstoff-, Sperrholz- und Spanplatten. <Desc/Clms Page number 3> PATENT CLAIMS: 1. Use of melamine-formaldehyde resins in a melamine to formaldehyde molar ratio of 1: 1.1 to 1.8, preferably 1: 1.3 to 1.5, for covering fibrous, plywood and chipboard panels. <Desc / Clms Page number 3> 2. Verwendung von Melaminformaldehydharzen nach Anspruch 1, mit die Fliessfähigkeit steigernden Zusätzen, wie Polyalkoholen, Zuckerderivaten. 2. Use of melamine-formaldehyde resins according to claim 1, with additives that increase flowability, such as polyalcohols, sugar derivatives.
AT812460A 1960-01-21 1960-10-31 AT228515B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE228515T 1960-01-21

Publications (1)

Publication Number Publication Date
AT228515B true AT228515B (en) 1963-07-25

Family

ID=29593957

Family Applications (1)

Application Number Title Priority Date Filing Date
AT812460A AT228515B (en) 1960-01-21 1960-10-31

Country Status (1)

Country Link
AT (1) AT228515B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005022228A1 (en) * 2005-05-10 2006-11-23 Ami-Agrolinz Melamine International Gmbh Melamine-formaldehyde resin solution and process for its preparation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005022228A1 (en) * 2005-05-10 2006-11-23 Ami-Agrolinz Melamine International Gmbh Melamine-formaldehyde resin solution and process for its preparation

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