CH203956A - Adhesive. - Google Patents
Adhesive.Info
- Publication number
- CH203956A CH203956A CH203956DA CH203956A CH 203956 A CH203956 A CH 203956A CH 203956D A CH203956D A CH 203956DA CH 203956 A CH203956 A CH 203956A
- Authority
- CH
- Switzerland
- Prior art keywords
- parts
- acid
- adhesive
- water
- solution
- Prior art date
Links
- 239000000853 adhesive Substances 0.000 title claims description 9
- 230000001070 adhesive effect Effects 0.000 title claims description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 10
- 239000007859 condensation product Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 239000004848 polyfunctional curative Substances 0.000 claims description 6
- 229920000877 Melamine resin Polymers 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 4
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 4
- -1 aliphatic aldehyde Chemical class 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- ZMGMDXCADSRNCX-UHFFFAOYSA-N 5,6-dihydroxy-1,3-diazepan-2-one Chemical class OC1CNC(=O)NCC1O ZMGMDXCADSRNCX-UHFFFAOYSA-N 0.000 description 1
- CAHQGWAXKLQREW-UHFFFAOYSA-N Benzal chloride Chemical compound ClC(Cl)C1=CC=CC=C1 CAHQGWAXKLQREW-UHFFFAOYSA-N 0.000 description 1
- XNCOSPRUTUOJCJ-UHFFFAOYSA-N Biguanide Chemical compound NC(N)=NC(N)=N XNCOSPRUTUOJCJ-UHFFFAOYSA-N 0.000 description 1
- 229940123208 Biguanide Drugs 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- PKWIYNIDEDLDCJ-UHFFFAOYSA-N guanazole Chemical compound NC1=NNC(N)=N1 PKWIYNIDEDLDCJ-UHFFFAOYSA-N 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- CSNFMBGHUOSBFU-UHFFFAOYSA-N pyrimidine-2,4,5-triamine Chemical compound NC1=NC=C(N)C(N)=N1 CSNFMBGHUOSBFU-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09J161/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
Klebstoff. Es wurde gefunden, dass sich eine Mi schung, die ein härtbares Kondensationspro dukt aus einem aliphatischen Aldehyd, ins besondere Formaldehyd, bezw. Formaldehyd abspaltenden Mitteln und einer Ringverbin dung, z.
B. einer solchen, die 5- bezw. 6i-,glied@rigs 1:Leterocyclisiche Ringe enthält, in der mindestens zweimal die Gruppe
EMI0001.0012
vorhanden ist, neben einem sauren Härter enthält, in hervorragender Weise für die Verklebung von Werstoffen aller Art, wie. z. B. Pappe, Vulkanfiber, Textilien, Leder und namentlich von Holz, eignet.
Unter den Kondensationsprodukten der genannten Art seien beispielsweise solche genannt, die aus Aldehyden wie Formalde hyd mit Melamin, Cyanurtrihydrazid, Di- @.md Triaminopyrimidin, Guanazol, Di- hydrazido - amido - pyrrodiazol usw. erhalten werden.
Von den sauren Härtern, die als Bestand- teil der Klebstoffe dieser Erfindung geeignet sind, seien Säuren, wie Salzsäure, Schwefel säure, Phosphorsäure, Essigsäure, Oxalsäure und Milchsäure, saure Salze, wie saures Na triumphosphat und saures Ammoniumphos- phat, ferner säureabspaltende Stoffe, wie Ammoniumchlorid, Benzalchlorid usw. ge nannt.
Die Verklebung mit Hilfe der Klebstoff mischung, die ein Kondensationsprodukt der gekennzeichneten Art neben einem sauren Härter enthält, wird in an sich bekannter Weise durch Aufbringen des Klebstoffes auf die Klebflächen und anschliessendes Verpres- sen der Kleblin@ge, gegebenenfalls unter Ver wendung einer Heisspresse, vorgenommen.
Das Kondensationsprodukt kann in wäs seriger Lösung oder, falls es in höher poly merisierter, wasserunlöslicher bezw. schwer wasserlöslicher Form vorliegt, in wässeriger Dispersion angewandt werden. Man kann es ferner gelöst in organischen Lösungsmitteln sowie in fester Form als Pulver oder in Forrn von Folien verwenden. Im letzteren Falle wird man zweckmässig der Folie einen Härter einverleiben., der erst in der Wärme Säure ab spaltet.
Im übrigen können die Kondensations produkte als solche oder in Kombination mit andern Leinen, natürlichen oder künstlichen Harzen, Cellulosederivaten, Kohlehydraten, Weichhaltungsmitteln, Füllstoffen, Pigmen ten usw. angewandt werden. Für manche Zwecke sind Mischungen der Kondensations produkte mit Kondensationsprodukten aus Aldehyden und Harnstoff, wie sie zum Beispiel in der deutschen Patentschrift. Nr. 550647 beschrieben sind, oder aus Al dehyden und nicht zyklischen Harnstoffab- kömmlingen, z.
B. Dicyandiatnid oder Bi- guanid, als Grundstoffe für die Klebstoffe dieser Erfindung besonders geeignet. <I>Beispiel 1:</I> 126 Teile 'Melamin, 90 Teile Paraform- aldehyd und etwa 100 Teile Wasser werden eine halbe Stunde auf Siedetemperatur ge halten.
Der entstandenen viskosen Flüssig keit wird 10 ö ige wässerige Salzsäurelösung zugefügt. - Zur Durchführung einer Ver- leimung streicht man diese Mischung auf eine Seite der zu verleimenden Holzflächen, etwa auf die Mittellage einer herzustellenden drei fachen Sperrplatte. Die Furniere werden in der hydraulischen Presse bei einer Tempera tur der Platten von etwa 100 C während einer Zeit von etwa 10 Minuten gepresst.
Man erhält auf diese Weise eine Sperrplatte, deren Verleimung so gut ist, dass beim Spalt versuch das Trennen in der Holzfaser und nicht in der Leimfuge erfolgt.. Die Platte hält ausserdem mehrstündiges Kochen ohne jeden Schaden aus. <I>Beispiel 2:</I> In 3300 Teile einer siedenden, schwach ameisensauren, 30%igen Formaldehydlösung wird eine 70 C warme Lösung von 900 Teilen Harnstoff in 600 Teilen Wasser inner halb von 30 Minuten zufliessen gelassen und die Lösung so lange im Sieden gehalten, bis eine gezogene Probe bei 20 C nach Zugabe von 2 Teilen Wasser gerade sich zu trüben beginnt.
Die Lösung wird hierauf neutrali siert und nach Zugabe von 300 Teilen Me- larnin nochmals 10 Minuten bei einem pH- Wert von 7 bis 8 weiter erhitzt. Nach Ab destillieren von 2400 Teilen Wasser hinter bleibt ein in der Wärme klares Produkt, das nach einigem Stehen in der Kälte pasten- förmig wird, in dessen Molekül das Melamin eingetreten ist.
<B>100</B> Teile dieses Produktes, 20 Teile Roggenmehl und 30 Teile Wasser ergeben nach Zufügen von 5 Teilen einer 15%igen wässerigen Ammonchloridlösung einen Leim, mit dem bei Drucken von 8 hglcm= und einer Temperatur von<B>100</B> C eine ausgezeichnete und wasserfeste Sperholzverleimung erzielt wird.
Adhesive. It has been found that there is a mixture that is a curable condensation product from an aliphatic aldehyde, in particular formaldehyde, respectively. Formaldehyde-releasing agents and a ring compound such.
B. one that 5- respectively. 6i-, glied @ rigs 1: Leterocyclisiche rings containing at least twice the group
EMI0001.0012
is present, in addition to containing an acidic hardener, in an excellent way for bonding materials of all kinds, such as. z. B. cardboard, vulcanized fiber, textiles, leather and especially wood.
Examples of condensation products of the type mentioned are those which are obtained from aldehydes such as formaldehyde with melamine, cyanuric trihydrazide, di- @ .md triaminopyrimidine, guanazole, dihydrazido-amido-pyrrodiazole, etc.
Acid hardeners which are suitable as part of the adhesives of this invention are acids such as hydrochloric acid, sulfuric acid, phosphoric acid, acetic acid, oxalic acid and lactic acid, acid salts such as acid sodium phosphate and acid ammonium phosphate, and also acid-splitting substances such as ammonium chloride, benzal chloride, etc. called ge.
Bonding with the aid of the adhesive mixture, which contains a condensation product of the type indicated in addition to an acidic hardener, is carried out in a manner known per se by applying the adhesive to the bonding surfaces and then pressing the adhesive ring, if necessary using a hot press, performed.
The condensation product can be in aqueous solution or, if it is higher poly, water-insoluble BEZW. sparingly water-soluble form, can be used in aqueous dispersion. It can also be used dissolved in organic solvents and in solid form as a powder or in the form of films. In the latter case, the film will expediently incorporate a hardener which only splits off acid when heated.
In addition, the condensation products can be used as such or in combination with other linen, natural or synthetic resins, cellulose derivatives, carbohydrates, softeners, fillers, pigments, etc. For some purposes, mixtures of the condensation products with condensation products of aldehydes and urea, as for example in the German patent. No. 550647 are described, or from aldehydes and non-cyclic urea derivatives, z.
B. dicyandiatnide or biguanide, particularly suitable as base materials for the adhesives of this invention. <I> Example 1 </I> 126 parts of melamine, 90 parts of paraformaldehyde and about 100 parts of water are kept at the boiling temperature for half an hour.
10% aqueous hydrochloric acid solution is added to the viscous liquid formed. - To carry out a gluing, this mixture is spread on one side of the wooden surfaces to be glued, for example on the middle layer of a triple blocking board to be produced. The veneers are pressed in the hydraulic press at a tempera ture of the panels of about 100 C for a time of about 10 minutes.
In this way, a barrier board is obtained whose gluing is so good that if you try to split it, the separation takes place in the wood fiber and not in the glue joint. The board can also withstand several hours of cooking without any damage. <I> Example 2: </I> In 3300 parts of a boiling, weakly formic acid, 30% formaldehyde solution, a 70 C solution of 900 parts of urea in 600 parts of water is allowed to flow in within 30 minutes and the solution is kept in the Maintained the boil until a sample taken at 20 C just begins to turn cloudy after adding 2 parts of water.
The solution is then neutralized and, after addition of 300 parts of molarnin, heated for a further 10 minutes at a pH of 7 to 8. After 2400 parts of water have been distilled off, a product that is clear when heated and becomes pasty after standing in the cold for a while, in whose molecule the melamine has entered.
<B> 100 </B> parts of this product, 20 parts of rye flour and 30 parts of water produce, after adding 5 parts of a 15% aqueous ammonium chloride solution, a glue with which when printing 8 hglcm = and a temperature of <B> 100 </B> C an excellent and waterproof plywood bond is achieved.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE203956X | 1937-01-18 | ||
| DE831979X | 1937-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH203956A true CH203956A (en) | 1939-04-15 |
Family
ID=32394714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH203956D CH203956A (en) | 1937-01-18 | 1938-01-07 | Adhesive. |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE425762A (en) |
| CH (1) | CH203956A (en) |
| FR (1) | FR831979A (en) |
-
0
- BE BE425762D patent/BE425762A/xx unknown
-
1938
- 1938-01-07 CH CH203956D patent/CH203956A/en unknown
- 1938-01-12 FR FR831979D patent/FR831979A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE425762A (en) | |
| FR831979A (en) | 1938-09-16 |
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