IT9067846A1 - TRANSPARENT WOOD IMPREGNATING AGENT - Google Patents

TRANSPARENT WOOD IMPREGNATING AGENT Download PDF

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Publication number
IT9067846A1
IT9067846A1 IT067846A IT6784690A IT9067846A1 IT 9067846 A1 IT9067846 A1 IT 9067846A1 IT 067846 A IT067846 A IT 067846A IT 6784690 A IT6784690 A IT 6784690A IT 9067846 A1 IT9067846 A1 IT 9067846A1
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medium according
impregnating
impregnating medium
wood
mixture
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IT067846A
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Italian (it)
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IT1240995B (en
IT9067846A0 (en
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Tullio Bollini
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Warmoctro Bv
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom
    • A01N47/04—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom containing >N—S—C≡(Hal)3 groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16—Inorganic impregnating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16—Inorganic impregnating agents
    • B27K3/18—Compounds of alkaline earth metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • B27K3/36—Aliphatic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • B27K3/50—Mixtures of different organic impregnating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

DESCRIZIONE dell'invenzione industriale dal titolo: DESCRIPTION of the industrial invention entitled:

"Mezzo impregnante trasparente per legno" "Transparent impregnating medium for wood"

D E S C R I Z I 0 N E D E S C R I Z I 0 N E

La presente invenzione concerne un mezzo impregnante liquido, trasparente per legno. Essa concerne inoltre un procedimento per la sua preparazione. The present invention relates to a liquid, transparent impregnating medium for wood. It also concerns a procedure for its preparation.

Mezzi impregnanti per legno sono già noti. Essi servono a proteggere il legno da influenze dannose dell'ambiente e a prolungare la sua durata. In particolare viene perseguita una protezione contro l'attacco di funghi, "batteri di marcescenza, alghe e animali come insetti. I mezzi impregnanti per legno sono di norma sistemi liquidi, che possono contenere acqua. Impregnating means for wood are already known. They serve to protect the wood from harmful environmental influences and to extend its service life. In particular, protection against the attack of fungi, "rotting bacteria, algae and animals such as insects" is pursued. The impregnating media for wood are usually liquid systems, which may contain water.

Un mezzo impregnante per legno ideale deve presentare effetto velenoso persistente contro parassiti, non deve tutta via essere velenoso per uomini e animali domestici. Esso non deve attaccare i metalli, penetrare il più facilmente possiti le anche in legno non trattato, non deve essere dilavato da pioggia e deve essere il più a "buon prezzo possibile. An ideal wood impregnating medium must have a persistent poisonous effect against parasites, it must not however be poisonous to humans and pets. It must not attack metals, penetrate untreated wood as easily as possible, it must not be washed away by rain and it must be as cheap as possible.

Una grande difficoltà costituisce la penetrazione del mezzo nel legno. Perciò s'impiegano attualmente procedimenti in caldaia, nei quali il legno preventivamente essiccato viene esposto in un recipiente chiuso, contenente mezzo impregnan te alternativamente a sovrapressioni e depressioni. A great difficulty is the penetration of the medium into the wood. Therefore, boiler processes are currently used in which the previously dried wood is exposed in a closed vessel containing impregnating medium alternately to overpressures and depressions.

Questi procedimenti non sono applicabili a oggetti di le gno finiti ed in particolare ad articoli di legno nell'edilizia o solo in modo molto costoso. I procedimenti di verniciatura, che anche sono già noti, hanno l'inconveniente che oggetti di legno devono essere anzitutto provvisti di una mano di fondo di mezzo impregnante, essiccati a lungo e quindi devono venire provvisti di un'altra pittura di superficie. Vi si aggiunge che il Carbolineum impiegato in precedenza come mezzo impregnante efficace attualmente non può più venire impiegato a causa della sua velenosità. These processes are not applicable to finished wooden articles and in particular to wooden articles in construction or only in a very expensive way. The painting processes, which are also already known, have the drawback that wooden objects must first be provided with a base coat of impregnating medium, dried for a long time and therefore must be provided with another surface paint. It is added that the Carbolineum previously used as an effective impregnating medium can no longer be used due to its poisonousness.

La problematica descritta in quanto precede e gli inconvenienti delle soluzioni attuali nel campo dell'impregnazione e conservazione del legno sono trattati dettagliatamente nel Chemie-Lexikon del Rtìmpp, ad esempio 6. Ediz. 1966, Voi. II, Col. 2758-2762. The problem described above and the drawbacks of current solutions in the field of wood impregnation and conservation are dealt with in detail in the Chemie-Lexikon of Rtìmpp, for example 6. Ediz. 1966, Vol. II, Col. 2758-2762.

Compito della presente invenzione era la realizzazione di un mezzo impregnante anidro efficace in modo fungicida ed alghic ida, che possa venire applicato nella pittura, che pene tri nel legno meglio di mezzi noti, ma allo stesso tempo agi sca come patina di superficie,.^cioé renda non necessaria la applicazione di una finitura di superficie, di vernice o di pittura. Inoltre il mezzo deve proteggere meglio il legno con tro l'azione di acqua, luce UV, irradiazione solare ed essere compatibile con l'ambiente, anche per quanto riguarda la produ zione. The aim of the present invention was to provide an anhydrous impregnating medium effective in a fungicidal and algaeic way, which can be applied in the paint, which penetrates the wood better than known means, but at the same time acts as a surface patina. that is, it makes the application of a surface finish, varnish or paint unnecessary. In addition, the medium must better protect the wood against the action of water, UV light, solar radiation and be compatible with the environment, also with regard to production.

Il mezzo impregnante per legno trasparente secondo la presente invenzione, che soddisfa questi compiti, é definito nella rivendicazione indipendente 1. Particolari elaborazioni formano l’oggetto di rivendicazioni dipendenti* The impregnating medium for transparent wood according to the present invention, which fulfills these tasks, is defined in independent claim 1. Particular processing forms the subject of dependent claims *

Come inoltre venne sorprendentemente trovato la successione di aggiunta dei componenti del mezzo impregnante per le gno secondo la presente invenzione é critica in quanto per una determinata successione vengono conseguiti i migliori risultati. Perciò la presente invenzione concerne inoltre un procedimento per la produzione del mezzo impregnante per legno che precede, e il procedimento é definito nella seconda rivendicazione indipendente. As was also surprisingly found, the sequence of addition of the components of the impregnating medium for the wood according to the present invention is critical in that the best results are achieved for a given sequence. Therefore, the present invention further relates to a process for the production of the preceding wood impregnating medium, and the process is defined in the second independent claim.

Devono ora venire identificati in maggior dettaglio i singoli componenti del mezzo impregnante trasparente secondo la presente invenzione. The individual components of the transparent impregnating medium according to the present invention must now be identified in greater detail.

Componente principale ("corpo") della fase del mezzo esen te da solvente é una sostanza essiccante chimicamente a base di olio di lino, che normalmente é nota solo per l'impiego per pitture di superficie. Preferibilmente si tratta di un olio di lino modificato con isocianato. Particolarmente adatto é il prodotto URADUR F 77, che viene fornito come soluzione al 60% in White Spirit dalla Ditta DIE Resine. The main component ("body") of the solvent-free medium phase is a chemically drying substance based on linseed oil, which is normally known only for use in surface paints. Preferably it is an isocyanate-modified linseed oil. Particularly suitable is the product URADUR F 77, which is supplied as a 60% solution in White Spirit by the company DIE Resine.

Per il miglior indurimento di questo prodotto, che infatti, ti é essiccante all'aria, il cui indurimento però anche nello interno del legno deve verificarsi prima, ove aria non può en trare, vengono aggiunti siccativi per sé noti naftenati di me talli, -ottoati, -linoleati, -resinati e simili. Risultati particolarmente "buoni ha dato una miscela di composti di manganese, calcio e zirconio, che é nuova e produce un'essiccazione sorprendentemente buona e rapida. Siccativi ben adatti di questo gruppo, cioè i derivati di singoli metalli, vennero acquistati sotto la designazione commerciale Nuodex dalla Dit ta URAI s.p.a., Assago, Italia. For the best hardening of this product, which in fact, is air drying, the hardening of which, however, also in the interior of the wood must occur first, where no air can enter, siccatives known per se known naphthenates of metals are added, - octoates, linoleates, resins and the like. Particularly good results gave a mixture of manganese, calcium and zirconium compounds, which is new and produces surprisingly good and fast drying. Well suited siccatives of this group, ie derivatives of single metals, were purchased under the commercial designation Nuodex from Dit ta URAI s.p.a., Assago, Italy.

Come solvente il mezzo impregnante per legno secondo la presen te invenzione .- oltre al White Spirit dell'olio di lino modificato - contiene solo composti alifatici contenenti ossigeno. I solventi scelti sembrano essere responsabili per la buona penetrazione del mezzo secondo la presente invenzione nel legno. Inoltre essi sono ampiamente più compatibili per l'ambien te degli idrocarburi. Ha dato buoni risultati una miscela di un glicoletere inferiore del punto d'ebollizione tra 100 e 150°C con un esteralcole del punto d'ebollizione 180 a 260°C. Tali glicoleteri sono ad esempio Dowanol PM della Dow Chemic Company (Propilenglicolmonometiletere) nonché etilenglicolmetiletere ed etilenglicoletiletere, in particolare però butildiglicoletere ( "Butylcarbitol"). Esteralcoli sono ad esempio glicolraonoformiato e -acetato. Ha dato buoni risultati il prodotto TEXAU0L della Eastman Chemical Company. As a solvent, the impregnating medium for wood according to the present invention - in addition to the White Spirit of the modified linseed oil - contains only aliphatic compounds containing oxygen. The solvents selected appear to be responsible for the good penetration of the medium according to the present invention into the wood. Furthermore, they are far more compatible with the environment than hydrocarbons. A mixture of a glycol ether below boiling point between 100 and 150 ° C with an ester alcohol of boiling point 180 to 260 ° C gave good results. Such glycol ethers are for example Dowanol PM from Dow Chemic Company (Propylene glycol monomethylether) as well as ethylene glycolmethyl ether and ethylene glycol ethyl ether, in particular, however, butyldiglycol ether ("Butylcarbitol"). Esteralcohols are, for example, glycolaronoformate and -acetate. Eastman Chemical Company's TEXAU0L product gave good results.

Come sostanza biocida il mezzo impregnante per legno secondo la presente invenzione contiene preferibilmente un sulfaraidderivato, che é efficace contro funghi, alghe, generi Penicillium, stabile alla luce e non volatile e non disturba l'essiccazione del derivato di olio di lino. Preferibilmente s’impiega un N,N-diaril-N'-aril-N’-ftrialogenometilJ-sulfamide. As a biocidal substance, the impregnating medium for wood according to the present invention preferably contains a sulfaraid derivative, which is effective against fungi, algae, genera Penicillium, light-stable and non-volatile and does not disturb the drying of the linseed oil derivative. An N, N-diaryl-N'-aryl-N'-phtriahalogenomethylJ-sulfamide is preferably used.

Il mezzo impregnante per legno secondo la presente invenzione contiene di norma ma non coattivamente, un agente di distensione, ad esempio aldossima o chetossima. Ossime adatte so no ad esempio butiraldossima, metiletilchetossima e cicloesanonossima. Ulteriori aggiunte adatte.sono additivi reologici come ad esempio silicati a strati modificati organicamente ("Beatone SD-1" della Kronos Titan GmbH., Leverkusen, BRD) nonché altri additivi usuali come agenti bagnanti e disperdenti, sostanze d'aroma eco. The impregnating medium for wood according to the present invention normally contains, but not necessarily, a spreading agent, for example aldoxime or ketoxime. Suitable oximes are, for example, butyraldoxime, methylethylketoxime and cyclohexanone oxime. Further suitable additives are rheological additives such as organically modified layered silicates ("Beatone SD-1" from Kronos Titan GmbH., Leverkusen, BRD) as well as other usual additives such as wetting and dispersing agents, aroma substances, etc.

La composizione di mezzi impregnanti per legno particolar mente adatti é la seguente, indicata in parti in peso: The composition of particularly suitable impregnating media for wood is the following, indicated in parts by weight:

Per l’attuazione del procedimento secondo la presente in venzione s’introduce anzitutto il solvente in un recipiente di miscelazione, si fa affluire la soluzione dell'olio di lino modificato e si aggiungono i siccativi e il biocida. Degli ad ditivi facoltativi l'antipelle viene aggiunto subito dopo i siccativi. Ovviamente si rimescola continuamente nelle prepara zione. Si opera nel modo migliore a temperatura ambiente; una carica di circa 100 kg é finita in circa 20 a 30 minuti. For the implementation of the procedure according to this invention, the solvent is first introduced into a mixing vessel, the modified linseed oil solution is poured in and the siccatives and the biocide are added. Of the optional additives, the anti-skin is added immediately after the siccatives. Obviously it mixes continuously in the preparations. It works best at room temperature; a charge of about 100 kg is finished in about 20 to 30 minutes.

Il mezzo impregnante si distingue ancora per un’aumentata immagazzinabilità, in generale circa 8 a 12 mesi. The impregnating medium still stands out for its increased storage, generally around 8 to 12 months.

Per l’applicazione si spalma o spruzza la superficie del legno pulita meccanicamente con il mezzo liquido, si fa essiccare e si provvede la superficie con una seconda mano dèlio stesso mezzo. Il legno é ora impregnato in modo conservante e possiede inoltre il suo colore naturale, ad esempio noce, lari ce, mogano, teak e così via, senza che sia necessario un'ulte riore mano ài pittura come mordente differente o simile. For application, the mechanically cleaned surface of the wood is spread or sprayed with the liquid medium, it is dried and the surface is provided with a second coat of the same medium. The wood is now impregnated in a preservative way and also possesses its natural color, for example walnut, lari ce, mahogany, teak and so on, without requiring an additional coat of paint as a different or similar stain.

Un Esempio deve illustrare ulteriormente la presente invenzione. An Example is to further illustrate the present invention.

Esempio 1 Example 1

In un recipiente di miscelazione consfiatatoio verso l'es terno con una capacità utile di circa 1501 s'introducono 3 kg di Douanol PM (propilenglicolmetiletere, Kp 120 °C) e 64,5 kg TEXAUOL (Esteralcool, Kp 244°C). Sotto agitazione si aggiungono i seguenti prodotti: 30 kg URADUR F-77 (60 % in White Spirit), 0,2 kg siccativo al manganese (6 % Mn), 0,6 kg siccativo al calcio (4 % Ca), 0,4 kg siccativo allo zirconio (12 % Zr), 0,5 kg EXKIN 2 (metiletilchetossima) e 0,8 Kg Biocida. Dopo agitazione di 30 minuti si ottiene un mezzo impregnante trasparente con le caratteristiche descritte in quanto precede, che penetra molto bene in legno. 3 kg of Douanol PM (propylene glycolmethylether, Kp 120 ° C) and 64.5 kg TEXAUOL (Esteralcool, Kp 244 ° C) are introduced into a mixing vessel with an externally blown tank with a useful capacity of about 1501. The following products are added under stirring: 30 kg URADUR F-77 (60% in White Spirit), 0.2 kg manganese siccative (6% Mn), 0.6 kg calcium siccative (4% Ca), 0, 4 kg zirconium siccative (12% Zr), 0.5 kg EXKIN 2 (methylethyl ketoxime) and 0.8 kg Biocide. After stirring for 30 minutes, a transparent impregnating medium with the characteristics described above is obtained, which penetrates very well into the wood.

Come venne già menzionato, un ulteriore trattamento di su perficie del legno impregnato non é necessario, può però venire effettuato se desiderato. L'impregnazione descritta non disturba mani di pittura di tipo diverso o uguale successive. As already mentioned, a further surface treatment of the impregnated wood is not necessary, but can be carried out if desired. The described impregnation does not disturb successive coats of paint of a different or identical type.

Claims (6)

R I V E N D I C A Z I O N I Mezzo impregnante per legno trasparente in forma liquida, contenente solvente e biocida, caratterizzato dal fatto che esso contiene come componente principale della sostanza secca olio di lino modificato con isocianato ed inoltre una miscela siccativa, e che il solvente consiste prevalentemente di liqui di alifatici esenti da idrocarburi. R I V E N D I C A Z I O N I Transparent wood impregnating medium in liquid form, containing solvent and biocide, characterized in that it contains linseed oil modified with isocyanate as the main component of the dry substance and also a drying mixture, and that the solvent consists mainly of aliphatic liquids free from hydrocarbons. 2. Mezzo d’impregnazione secondo rivendicazione 1, caratterizzato dal fatto che come miscela siccativa é presente una di composti di manganese, calcio e zirconio. 2. Impregnation medium according to claim 1, characterized in that as a drying mixture there is one of compounds of manganese, calcium and zirconium. 3. Mezzo impregnante secondo rivendicazione 1 o 2, caratterizzato dal fatto che esso contiene inoltre un agente antipelle a base di ossima. 3. Impregnating medium according to claim 1 or 2, characterized in that it further contains an oxime-based anti-skin agent. Mezzo impregnante secondo una delle rivendicazioni precedenti, caratterizzato dal fatto che, esso contiene come biocida una N,N-diaril-N'-aril-N'’-(trialogenometiltio)-sulfamide. Impregnating medium according to one of the preceding claims, characterized in that it contains as a biocide an N, N-diaryl-N'-aryl-N '' - (trialogenomethylthio) -sulfamide. Agente impregnante secondo rivendicazione 4t to dalla composizione in parti in peso di Impregnating agent according to claim 4 by the composition in parts by weight of 6. Mezzo impregnante secondo una delle rivendicazioni prece denti, caratterizzato dal fatto che il solvente é.una miscela di esteralcoli e glicoleteri. Mezzo impregnante secondo rivendicazione 6, caratterizza to dal fatto che come componente principale della miscela é presente un glicolmonoestere e come componente secondario un glicolmonoetere. Procedimento per la produzione del mezzo impregnante secondo rivendicazione 5, caratterizzato dal fatto che, si aggiungono sotto agitazione al componente e) introdotto uno dopo l'altro nella successione indicata nella rivendicazione 5 i componenti (a) a (d) e prima dell'aggiunta del componente successivo si scioglie ovvero disperde. 6. Impregnating medium according to one of the preceding claims, characterized in that the solvent is a mixture of ester alcohols and glycol ethers. Impregnating medium according to claim 6, characterized in that a glycol monoester is present as the main component of the mixture and a glycol monoether is present as a secondary component. Process for the production of the impregnating medium according to claim 5, characterized in that, under stirring, component e) introduced one after the other in the sequence indicated in claim 5, components (a) a (d) and before adding of the subsequent component melts or disperses.
IT67846A 1990-04-26 1990-10-30 TRANSPARENT WOOD IMPREGNATING VENT IT1240995B (en)

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CH1412/90A CH681438A5 (en) 1990-04-26 1990-04-26

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IT9067846A1 true IT9067846A1 (en) 1992-04-30
IT1240995B IT1240995B (en) 1993-12-27

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AT (1) AT396567B (en)
CH (1) CH681438A5 (en)
DE (1) DE4020492A1 (en)
ES (1) ES2024331A6 (en)
FR (1) FR2661356B1 (en)
IT (1) IT1240995B (en)

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CN109233515A (en) * 2018-08-03 2019-01-18 阜南佳利工艺品有限公司 A kind of preparation method of insect prevention wicker plaiting article suitcase

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DE2927349A1 (en) * 1979-07-06 1981-01-29 Solvay Werke Gmbh AGENT FOR THE PRESERVATION OF WOOD AND WOOD MATERIALS AND METHOD FOR THE PRODUCTION OF THE PRESERVATIVE AGENT
GB2128091A (en) * 1982-10-09 1984-04-26 Bio Kil Lab Limited Wood preservative composition
DE3507420A1 (en) * 1985-03-02 1986-09-04 Basf Ag, 6700 Ludwigshafen WOOD PRESERVATIVES
DD291284A5 (en) * 1990-01-02 1991-06-27 Chemie Ag Bitterfeld-Wolfen,De NEW OILY WOOD PROTECTION

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AT396567B (en) 1993-10-25
FR2661356A1 (en) 1991-10-31
CH681438A5 (en) 1993-03-31
FR2661356B1 (en) 1993-08-13
DE4020492A1 (en) 1991-10-31
ATA120590A (en) 1993-02-15
IT1240995B (en) 1993-12-27
ES2024331A6 (en) 1992-02-16
IT9067846A0 (en) 1990-10-30

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