DE735734C - Process for the production of lacquer resins from wood tar - Google Patents
Process for the production of lacquer resins from wood tarInfo
- Publication number
- DE735734C DE735734C DER106620D DER0106620D DE735734C DE 735734 C DE735734 C DE 735734C DE R106620 D DER106620 D DE R106620D DE R0106620 D DER0106620 D DE R0106620D DE 735734 C DE735734 C DE 735734C
- Authority
- DE
- Germany
- Prior art keywords
- tar
- heated
- production
- wood tar
- lacquer resins
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 239000011347 resin Substances 0.000 title claims description 13
- 229920005989 resin Polymers 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 11
- 239000011276 wood tar Substances 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000004922 lacquer Substances 0.000 title description 3
- 239000011269 tar Substances 0.000 claims description 13
- 229910044991 metal oxide Inorganic materials 0.000 claims description 6
- 150000004706 metal oxides Chemical class 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000002966 varnish Substances 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- -1 cresol oils Chemical class 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229910003439 heavy metal oxide Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 239000003171 wood protecting agent 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
- C09F—NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE
- C09F1/00—Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins
- C09F1/04—Chemical modification, e.g. esterification
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Paints Or Removers (AREA)
Description
Verfahren zur Herstellung von Lackharzen aus Holzteer Die Erfindung betrifft ein Verfahren zur Herstellung von Lackharzen aus Holzteer, wobei dem erhitzten Teer Metalloxyde in Portionen zugesetzt werden und die Masse nach beendeter Reaktion. weiter :erhitzt wird.Process for the production of lacquer resins from wood tar The invention relates to a process for the production of lacquer resins from wood tar, the heated Tar metal oxides are added in portions and the mass after the reaction has ended. further: is heated.
Bisher hat man hierbei den Holzteer ohne Vorbereitung verwendet, d. h. man hat den Holzteer mit Schwermetalloxyden erhitzt (Patentschrift 32q.876). Gemäß der vorliegenden Erfindung wird vor dem Zusetzen des Metalloxyds der Teer mindestens 1/z Stunde lang im Vakuum .auf i 5o bis 2oo° C erhitzt.So far one has used here the wood tar without preparation, i. H. the wood tar has been heated with heavy metal oxides (patent specification 32q.876). According to the present invention, prior to adding the metal oxide, the tar becomes Heated to 150 to 200 ° C for at least 1/2 hour in vacuo.
Es ist zwar bereits bekannt, bei der Herstellung von Lack aus Nadelholzteer den Teer .einer Vorbehandlu@ng durch Erhitzen bis auf 2oo° im Vakuum zu unterwerfen. Bei diesem Verfahren wurden indessen dem vorbehandelten Teer nicht Mgtalloxyde, sondern Kalkhydrat in geringen Mengen zugesetzt, wobei sich ein saures und sprödes Produkt ergibt, das in Wasser löslich und daher nicht wetterfest ist. o Diese Vorbehandlung des Holzteers bei dem vorliegenden Verfahren bietet, wie durch Vergleichsversuche festgestellt wurde, fol-,-ende Vorteile: Das erhaltene Lackharz hat hellere Farbe, der Geruch ist schwächer, seine Härte (Schmelzpunkt) und Wasserfestigkeit sind größer, die Säurezahl ist niedriger, die Farbverträglichkeit größer. Es kann durch die Vorbehandlung der Metallzusatz :erniedrigt werden, und man kann schon durch einen Zusatz von weniger als io@''o ein springhartes Harz erhalten, oder man kann durch höheren Metallzusatz die Härte steigern.Although it is already known in the manufacture of varnish from softwood tar to subject the tar to a pretreatment by heating it up to 200 ° in a vacuum. In this process, however, the pretreated tar was not treated with Mgtalloxyde, but hydrated lime is added in small amounts, whereby an acidic and brittle one Results in product that is soluble in water and therefore not weatherproof. o This pre-treatment of the wood tar in the present method, as by comparative experiments was found to have the following advantages: The varnish resin obtained has a lighter color, the smell is weaker, its hardness (melting point) and water resistance are greater, the acid number is lower, the color compatibility greater. It can through pretreatment the addition of metals: can be lowered, and one can already do so by adding less as io @ '' o a spring-hard resin can be obtained, or by adding more metal increase the hardness.
Die Verbesserung des Harzes wird durch folgende Umstände herbeigeführt: i. Es werden durch die Erhitzung diejenigenTeile des Teers abgetrieben (Phenole, Oxysäuren, auch Kresolölea, die lacktechnisch wenig erwünscht sind, weil sie die Wasserbeständigkeit, Elastizität sowie Haftfähigkeit der Lackfilme herabsetzen.The improvement of the resin is brought about by the following circumstances: i. The heating removes those parts of the tar (phenols, Oxy acids, including cresol oils, which are not very desirable in terms of paint technology because they have the Reduce the water resistance, elasticity and adhesion of the paint films.
2. Durch die Vorerhitzung werden die sauersten Anteile abgetrieben, so daß sich die Säurezahl des erhaltenen Kunstharzes senkt.2. The most acidic components are driven off by preheating, so that the acid number of the synthetic resin obtained is lowered.
3. Durch das Erhitzen treten Strukturveränderungen in den einzelnen Bestandteilen des Harzes ein, die die Viscos,ität erhöhen und dadurch die Sprödigkeit herabsetzen. Eine Lösung des Harzes in Benzin- und in Benzolkolilenwasserstolten, in Alkoholen, Estern oder Betonen ergibt einen. Anstrich, der in wenigen Stunden mit hohem Glanz auftrocknet. Der Anstrich ist hitzebeständig; Versuche haben ergeben, daß der Anstrich Temperaturen von I So- C verträgt, ohne zu erweichen. Der Anstrich ist auch wasserbeständig.3. As a result of the heating, structural changes occur in the individual Components of the resin that increase the viscosity and thereby the brittleness reduce. A solution of the resin in petrol and benzene colil water stolten, in alcohols, esters or concretes gives one. Painting that takes a few hours dries up with a high gloss. The paint is heat-resistant; Tests have shown that the paint can withstand temperatures of I So-C without softening. The painting is also water resistant.
Da das nach dem vorliegenden Verfahren erzeugte Lackharz neutral ist, so läßt. es sich n5it basischen Pigmenten verarbeiten. Weiterhin läßt sich das Lackharz mit Naturharzen, Glyptalharzen, Chlorkautschuk und Nitrocellulose kombinieren und so zu Lacken verarbeiten, die eine vielseitige Verwendung finden können.Since the varnish resin produced by the present process is neutral, so lets. it can be processed with basic pigments. Furthermore, the varnish resin combine with natural resins, glyptal resins, chlorinated rubber and nitrocellulose and process into varnishes that can be used in many different ways.
Bei der Durchführung des Verfahrens ist es zweckmäßig, den vorbereiteten Holzteer nur auf eine Temperatur von I to' C und nicht, wie dies bisher üblich war. auf etwa i 5o- C ztt bringen. Hierdurch wird der Vorteil erzielt, daß das bei der Reaktion frei werdende Wasser nicht zu rasch, sondern allmählich verdampft, wodurch ein Überschäumen der Masse vermieden -wird.When carrying out the procedure, it is useful to use the prepared Wood tar only to a temperature of I to 'C and not, as was usual up to now. bring it to about i 5o C ztt. This has the advantage that the Reaction released water does not evaporate too quickly, but gradually, whereby foaming over the mass is avoided.
Um die Härte der mit Hilfe des Kunstharzes hergestellten Anstriche noch -weiter ztt erhöhen, empfiehlt es sich, die nach der Reaktion mit dem Metalloxyd .erforderliche Erwärmung über die bisher übliche Temperatur von etwa ISo- hinaus, und zwar bis höchstens 240' C, zu treiben. Beispiel I I ooo leg Holzteer -werden im Vakuum auf 15o bis 2oo@ C mehrere Stunden lang je nach Herkunft und Beschaffenheit des Teers erhitzt. Den so vorbereiteten Teer bringt man in einem Kessel auf eine Temperatur von i i o- C. Alsdann -werden unter fortgesetztem lZühren I2o kg Zilikoxyd in k@eü@cren Mengen eingetragen. Nach beeideter Zugabe der Oxyde und Beruliigunb der Masse erhitzt man -weiter auf etwa 180- C oder zwecks Erzielung eines besonders harten Harzes noch -weiter, und zwar bis höchstens auf 24.o C. Beispiel 2 rooo kg Holzteer werden 30 Minuten hlng im Vakuum von 9o m-m Quecksilbersäule bei einer Temperatur von 200' C (in der Flüssigkeit entsprechend 140- C'). im Dampfraum erbdestilliert. Der so vorberitete Teer -wird weiter behandelt, wie in dem Beispiel r atiaegelien ist. Die Verluste bei der Vakuumdestillation betrugen im Mittel 25Oo der Teereinwaage, das DXestillat enthält aul'er den oben bereits genannten Stoffen nnch Terpene und Acetonöl; es kann z. B. als Holzkonservierungsmittel dienen.In order to further increase the hardness of the paints produced with the aid of the synthetic resin, it is advisable to increase the temperature required after the reaction with the metal oxide above the usual temperature of about ISO, up to a maximum of 240 ° C to drive. Example II Ooo put wood tar - are heated in a vacuum to 150 to 200 ° C. for several hours, depending on the origin and nature of the tar. The tar prepared in this way is brought to a temperature of 10 ° C. in a kettle. Then, with continued stirring, 12o kg of cilic oxide are added in k @ eü @ cren quantities. After the oxides have been added and the mass has been sworn in, the mixture is heated further to about 180 ° C. or, in order to achieve a particularly hard resin, further, up to a maximum of 24 ° C. Example 2 Rooo kg of wood tar are suspended in vacuo for 30 minutes of 90 mm of mercury at a temperature of 200 ° C (in the liquid corresponding to 140 ° C '). Earth-distilled in the steam room. The tar prepared in this way is treated further as recommended in the example. The losses in the vacuum distillation averaged 250o of the tar weight, the D distillate contains, apart from the substances already mentioned above, terpenes and acetone oil; it can e.g. B. serve as a wood preservative.
Claims (3)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER106620D DE735734C (en) | 1939-12-22 | 1939-12-22 | Process for the production of lacquer resins from wood tar |
| DER106832D DE738992C (en) | 1939-12-22 | 1940-01-26 | Process for the production of lacquer resins from wood tar |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER106620D DE735734C (en) | 1939-12-22 | 1939-12-22 | Process for the production of lacquer resins from wood tar |
| DER106832D DE738992C (en) | 1939-12-22 | 1940-01-26 | Process for the production of lacquer resins from wood tar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE735734C true DE735734C (en) | 1943-05-25 |
Family
ID=33030684
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DER106620D Expired DE735734C (en) | 1939-12-22 | 1939-12-22 | Process for the production of lacquer resins from wood tar |
| DER106832D Expired DE738992C (en) | 1939-12-22 | 1940-01-26 | Process for the production of lacquer resins from wood tar |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DER106832D Expired DE738992C (en) | 1939-12-22 | 1940-01-26 | Process for the production of lacquer resins from wood tar |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE735734C (en) |
-
1939
- 1939-12-22 DE DER106620D patent/DE735734C/en not_active Expired
-
1940
- 1940-01-26 DE DER106832D patent/DE738992C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE738992C (en) | 1943-09-07 |
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