CH190218A - Process for making solid combustible materials refractory. - Google Patents
Process for making solid combustible materials refractory.Info
- Publication number
- CH190218A CH190218A CH190218DA CH190218A CH 190218 A CH190218 A CH 190218A CH 190218D A CH190218D A CH 190218DA CH 190218 A CH190218 A CH 190218A
- Authority
- CH
- Switzerland
- Prior art keywords
- condensation products
- dicyandiamide
- making solid
- combustible materials
- compounds
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 14
- 239000007787 solid Substances 0.000 title claims description 3
- 239000000463 material Substances 0.000 title description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 15
- 239000007859 condensation product Substances 0.000 claims description 15
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 150000001299 aldehydes Chemical class 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 2
- MVXMNHYVCLMLDD-UHFFFAOYSA-N 4-methoxynaphthalene-1-carbaldehyde Chemical compound C1=CC=C2C(OC)=CC=C(C=O)C2=C1 MVXMNHYVCLMLDD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 241000607479 Yersinia pestis Species 0.000 claims 1
- 125000004433 nitrogen atom Chemical group N* 0.000 claims 1
- 150000003839 salts Chemical class 0.000 description 4
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- YZEZMSPGIPTEBA-UHFFFAOYSA-N 2-n-(4,6-diamino-1,3,5-triazin-2-yl)-1,3,5-triazine-2,4,6-triamine Chemical compound NC1=NC(N)=NC(NC=2N=C(N)N=C(N)N=2)=N1 YZEZMSPGIPTEBA-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
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- SQSPRWMERUQXNE-UHFFFAOYSA-N Guanylurea Chemical compound NC(=N)NC(N)=O SQSPRWMERUQXNE-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- YSKUZVBSHIWEFK-UHFFFAOYSA-N ammelide Chemical compound NC1=NC(O)=NC(O)=N1 YSKUZVBSHIWEFK-UHFFFAOYSA-N 0.000 description 1
- MASBWURJQFFLOO-UHFFFAOYSA-N ammeline Chemical compound NC1=NC(N)=NC(O)=N1 MASBWURJQFFLOO-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000003842 bromide salts Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 229940083094 guanine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Fireproofing Substances (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
Verfahren zum Feuerfestmachen fester brennbarer Stoffe. Von den zur Herstellung von Feuer schutzmitteln verwendeten Produkten haben sich organische Stoffe, -die sich beim Er hitzen zu einer schaumigen Masse aufblähen, als besonders günstig erwiesen. Vorgeschla- gen wurden zu diesem Zwecke denen nach Bedarf anorganische Salze oder Farb stoffe zugesetzt werden können.
Die Haltbar keit .dieser Harnstoff-Formaldehyd-Konden- sationsprodukte ist jedoch begrenzt, so dass der Verbrauch innerhalb einer bestimmten Zeit erfolgen muss.
Es wurde nun gefunden, d@ass diese Nach teile beim Feuerfestmachen von festen ,Stof fen wie Holz, fertige Kleider, Wäsche usvv. nicht auftreten, wenn Konderssationsprodukte von Verbindungen, bei denen ein Kohlen stoffatom mit sämtlichen 4 Valenzen an Stickstoff gebunden ist, mit Al-delhyden ver- wendet werden.
Diese Kondensationsprodukte besitzen ausserdem eine bessere Feuerschutz- wirkung als die oben erwähnten Hain- t' deren Wirkung hauptsächlich erst durch den Salzzusatz her vorgerufen wird.
Die bei der Kondensation erhaltenen Lö sungen können in üblicher Weise durch Auf streichen, Anspritzen oder Tränken mit oder ohne Druck bezw. Vakuumanwendung auf die zu schützenden Materialien aufgebracht werden.
Der Stickstoff soll vor allem als Nitril-, Amino- oder Iminogruppe vorliegen, also in Form von Gruppen, in,denen kein Sauerstoff vorhanden ist. Als Ausgangsprodukte kom men vor allem Verbindungen in Frage, die die. Gruppe .
EMI0001.0052
enthalten.
Die aus die sen Verbindungen mit Aldehyden hergestell ten Kondensationsprodukte haben den be- kannten Ilarnstoff-Kond-ensationsprodukten gegenüber den Vorteil, .dass ihre Lösungen im Wasser stabiler sind, und @dass sie eine bes sere Feuerschutzwirkung ausüben.
Besonders vorteilhaft sind -die Konden sationsprodukte von Cyanamid oder Dicyan- diamid mit Formaldehyd. Es können zu die- sein Zwecke Dicyandiamid und dessen Lö sungen, Mutter- und Waschlaugen der Dicyandiamidgewinnung aus Kalkstickstoff, die noch Cyanamid enthalten, verwendet wer den, ferner Dicyandiamidin und seine Salze,
sowie die dicyandiamidhaltigen .Stoffe, die durch Umsetzung von Dicyandiamid entste- hen, wie Biguanid- und Guanidinderivate und die durch weitere Polymerisation des Cyanamides oder Dicyamdiamides sich bil denden Dicya.ndiamidabkömmlinge Melam, Melamin, Ammelin, Ammelid usw.
Diese Kondensationsprodukte können in flüssiger oder gelöster Form zur Anwendung -e bracht werden. Die Kondensationsprodukte sollen z. B. auf 1 Mol Dicyandiamid etwa 1 Mol Formaldehyd enthalten, der Formal dehydzusatz kann aber auch höher gewählt werden. Die entstehenden Lösungen sind un- mittelbar als Feuerschutzmittel verwendbar; es ist aber auch möglich, sie durch Ein dampfen zu konzentrieren, wobei ihre Wirk samkeit steigt.
Beider Kondensation wirkt ein geringer Säurezusatz beschleunigend; ausserdem kann durch grösseren Säurezusatz mehr Dicyan- diamidinsalz gebildet werden. Arbeitet man beispielsweise mit Phosphorsäure, so erhält man dadurch eine weitere flammenhemmende Komponente. Es scheint, dass Säurezusatz ausserdem ein Erstarren der Kondensations produkte verhindert.
Den Lösungen können verbrennungsver zögernde Stoffe zugesetzt werden, wie Phos phats, Borste. Bromide, Wa--serglas, Kalk und dergleichen, ausserdem fäulnishemmende oder schädlingsbekämpfende Zusätze, wenn gleich bereits Formaldehyd desinfizierend wirkt.
Der Schutz für vorliegendes Verfahren wird nur insoweit beansprucht, als es sich nicht um ein für die Textilindustrie in Be tracht kommendes Verfahren zur Veredlung von rohen oder verarbeiteten Textilfasern handelt.
Process for making solid combustible materials refractory. Of the products used to manufacture fire retardants, organic substances that expand to a foamy mass when heated have proven to be particularly beneficial. For this purpose, proposals were made to which inorganic salts or dyes can be added as required.
However, the shelf life of these urea-formaldehyde condensation products is limited so that they must be used within a certain period of time.
It has now been found that these disadvantages share when fireproofing solid materials such as wood, finished clothes, laundry, etc. do not occur if condensation products of compounds in which one carbon atom with all four valences is bonded to nitrogen are used with aldehydes.
These condensation products also have a better fire protection effect than the above-mentioned chains, the effect of which is mainly brought about by the addition of salt.
The solutions obtained in the condensation can be in the usual manner by painting, spraying or soaking with or without pressure BEZW. Vacuum application can be applied to the materials to be protected.
The nitrogen should primarily be present as a nitrile, amino or imino group, i.e. in the form of groups in which no oxygen is present. Compounds that can be used as starting products Group .
EMI0001.0052
contain.
The condensation products made from these compounds with aldehydes have the advantage over the known ilarnea condensation products that their solutions are more stable in water and that they exert a better fire protection effect.
The condensation products of cyanamide or dicyandiamide with formaldehyde are particularly advantageous. Dicyandiamide and its solutions, mother liquors and wash liquors from the production of dicyandiamide from calcium cyanamide, which still contain cyanamide, can be used for these purposes, as well as dicyandiamidine and its salts,
as well as the dicyandiamide-containing substances that arise through the reaction of dicyandiamide, such as biguanide and guanidine derivatives and the dicya.ndiamide derivatives melam, melamine, ammeline, ammelide, etc., which are formed by further polymerization of the cyanamide or dicyamdiamide.
These condensation products can be used in liquid or dissolved form. The condensation products should z. B. contain about 1 mole of formaldehyde per mole of dicyandiamide, but the formaldehyde addition can also be chosen higher. The resulting solutions can be used directly as fire retardants; but it is also possible to concentrate them by evaporation, which increases their effectiveness.
A small addition of acid accelerates the condensation; In addition, more dicyanodiamidine salt can be formed by adding more acid. If you work with phosphoric acid, for example, you get another flame-retardant component. It appears that the addition of acid also prevents the condensation products from solidifying.
Combustion-retarding substances, such as phosphates and bristles, can be added to the solutions. Bromides, water glass, lime and the like, as well as rot-inhibiting or pest-combating additives, even if formaldehyde already has a disinfecting effect.
Protection for the present process is only claimed insofar as it is not a process for the finishing of raw or processed textile fibers that is suitable for the textile industry.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE190218X | 1935-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH190218A true CH190218A (en) | 1937-04-15 |
Family
ID=5722637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH190218D CH190218A (en) | 1935-04-30 | 1936-04-25 | Process for making solid combustible materials refractory. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH190218A (en) |
-
1936
- 1936-04-25 CH CH190218D patent/CH190218A/en unknown
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