PL35472B1 - - Google Patents
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- Publication number
- PL35472B1 PL35472B1 PL35472A PL3547251A PL35472B1 PL 35472 B1 PL35472 B1 PL 35472B1 PL 35472 A PL35472 A PL 35472A PL 3547251 A PL3547251 A PL 3547251A PL 35472 B1 PL35472 B1 PL 35472B1
- Authority
- PL
- Poland
- Prior art keywords
- formaldehyde
- cresol
- adhesives
- phenol
- water
- Prior art date
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- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- ZRYCRPNCXLQHPN-UHFFFAOYSA-N 3-hydroxy-2-methylbenzaldehyde Chemical compound CC1=C(O)C=CC=C1C=O ZRYCRPNCXLQHPN-UHFFFAOYSA-N 0.000 claims description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims description 2
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- VOOLKNUJNPZAHE-UHFFFAOYSA-N formaldehyde;2-methylphenol Chemical compound O=C.CC1=CC=CC=C1O VOOLKNUJNPZAHE-UHFFFAOYSA-N 0.000 claims 1
- 229920001568 phenolic resin Polymers 0.000 claims 1
- 239000002023 wood Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- 235000011126 aluminium potassium sulphate Nutrition 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229940050271 potassium alum Drugs 0.000 description 1
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Description
Sila wiazaca czystych, stezonych klejów fe¬ nolowo- lub krezolowo-formaldehydowych prze¬ wyzsza wytrzymalosc drewna uzywanego do produkcji sklejek, co przyczynia sie, ze kleje ta¬ kie wykazuja pewien niewykorzystywany ,.nad¬ miar" sily wiazacej.Rozcienczanie klejów fenolowo- lub krezolo¬ wo-formaldehydowych woda jest niedopuszczal¬ ne, gdyz przy nieznacznym nawet rozcienczeniu omawiane kleje po nalozeniu na fornier dyfun- duja w glab tkanki drewna, co obniza wybitnie pewnosc klejenia.Znany dotad sposób przeciwdzialania dyfuzji rozcienczonych klejów fenolowo- lub krezolowo- formaldehydowych w glab tkanki drewna przez wprowadzanie do nich prócz wcdy hygroskopij- nych wypelniaczy, usuwa wprawdzie czesciowo wspomniana wade, lecz stwarzajac koniecznosc wprowadzania stosunkowo duzych ilosci wypel- *) Wlasciciel patentu oswiadczyl, ze wyna¬ lazca jest Tadeusz Perkitny w Bydgoszczy. niacza, zmniejsza wodoodpornosc kleju i utrud¬ nia jego równomierne nakladanie na fornier.Sposób wedlug wynalazku usuwa czesciowo wszystkie opisane wyzej niedogodnosci.Sposobem wedlug wynalazku kleje fenolowo- lub krezolowo-formaldehydowe rozciencza sie stosunkowo dosc znacznie woda, dodaje malych ilosci wypelniacza hygroskopijnego, po czym przez dodanie alunu czesc wspomnianych zywic przeprowadza sie w stan zawiesiny niezdolnej do dyfuzji w glab drewna, a mimo to topliwej i zachowujacej pelna zdolnosc klejenia.Przyklad Fenol krystaliczny 266,0 formalina 40% 245,0 lug sodowy krystaliczny 33,0 wodaI 206,0 alun potasowy 7,5 auellit 25,0 wodaII 217,5 kondensacja w autoklawie wypelnianie i stracanie w mieszadle 'Razem 1000,0 PLThe bonding strength of pure, concentrated phenol or cresol-formaldehyde adhesives exceeds that of the wood used to make plywood, which results in such adhesives having some unused, excess strength. Diluting phenol or cresol-formaldehyde adhesives. Water is unacceptable for cresol-formaldehyde because, even if slightly diluted, the adhesives in question diffuse into the depth of the wood tissue after being applied to the veneer, which greatly reduces the certainty of gluing. the depth of the wood tissue by introducing into them, apart from hygroscopic fillers, removes the aforementioned defect, although it requires the introduction of relatively large amounts of filler- *) The patent owner stated that the inventor is Tadeusz Perkitny in Bydgoszcz. and makes it difficult to apply it evenly to the veneer. The method according to the invention u partially removes all the disadvantages described above. According to the invention, phenol-or cresol-formaldehyde adhesives are diluted relatively considerably with water, small amounts of hygroscopic filler are added, and then, by adding alum, some of the said resins are suspended in a state of non-diffusion-able suspension in the depth of wood yet hot-melt and retaining full adhesive capacity Example Crystalline phenol 266.0 formalin 40% 245.0 crystalline sodium lug 33.0 water I 206.0 potassium alum 7.5 auellite 25.0 water II 217.5 autoclave condensation filling and loss in the agitator 'Total 1000.0 PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL35472B1 true PL35472B1 (en) | 1952-10-31 |
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