FR2574421A1 - Varnish which can be applied to any surface exhibiting some porosity - Google Patents
Varnish which can be applied to any surface exhibiting some porosity Download PDFInfo
- Publication number
- FR2574421A1 FR2574421A1 FR8412342A FR8412342A FR2574421A1 FR 2574421 A1 FR2574421 A1 FR 2574421A1 FR 8412342 A FR8412342 A FR 8412342A FR 8412342 A FR8412342 A FR 8412342A FR 2574421 A1 FR2574421 A1 FR 2574421A1
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- FR
- France
- Prior art keywords
- varnish
- weight
- parts
- porosity
- varnish according
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- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4288—Polycondensates having carboxylic or carbonic ester groups in the main chain modified by higher fatty oils or their acids or by resin acids
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
Abstract
Description
Vernis, applicable sur toute surface présentant une certaine porosité. Varnish, applicable on any surface with a certain porosity.
La présente invention a pour objet un vernis, applicable sur toute surface, présentant une certaine porosité. I1 se distingue des vernis selon l'art antérieur par son large domaine d'application et par ses qualités intrinsèques. The present invention relates to a varnish, applicable on any surface, having a certain porosity. I1 differs from varnishes according to the prior art by its wide field of application and by its intrinsic qualities.
Jusqu'à présent, l'usage des vernis était réservé au domaine du bois. Dans ce contexte, on s'est beaucoup préoccupé de la résistance des vernis à l'aír, à la lumière et peu de leur dureté, de leur résistance à l'action mécanique. La -notion de vernis a toujours été synonyme d'une certaine fragilité. Until now, the use of varnishes was reserved for the wood sector. In this context, there has been much concern about the resistance of varnishes to air, light and little of their hardness, their resistance to mechanical action. The -notion of varnish has always been synonymous with a certain fragility.
Au contraire, le vernis selon la présente invention a un très large domaine d'application et est très résistant à l'action mécanique. On the contrary, the varnish according to the present invention has a very wide field of application and is very resistant to mechanical action.
I1 est applicable sur tout support à la seule condition que celui-ci présente une certaine porosité. On ne pourrait l'appliquer sur une surface trop dure, trop compacte, par exemple sur un carrelage de grès cérame recuit mais on peut l'utiliser sur toutes surfaces de sol, sur tous revêtements de sol ou revêtements muraux, présentant une certaine porosité. Il convient parfaitement sur le bois, par exemple pour des meubles ou planchers,..., sur des plastiques et même sur du béton. Son utilisation sur du béton permet de supprimer la production de poussières cimenteuses et annule pratiquement le phénomène d'humidité alternante . La surface traitée par le vernis selon la présente invention est d'un entretien particulièrement facile et présente une remarquable résistance à tous les agents agressifs.D'autre part, le vernis selon l'invention, après application et séchage corrects, recouvre la surface traitée d'un film aux propriétés mécaniques très intéressantes. Ledit film résiste à l'usure, aux chocs, aux rayures,... A une extreme dureté, il allie une certaine souplesse. Son application sur du bois tendre par exemple, permettra de conserver une surface impeccable, meme si une action avec un instrument contondant est exercée sur ladite surface. Le bois pourra être meurtri en dessous de la pellicule de vernis mais ladite pellicule retrouvera son aspect d'origine. I1 is applicable on any support with the only condition that this one has a certain porosity. It could not be applied on a surface that is too hard, too compact, for example on an annealed porcelain stoneware tile, but it can be used on any floor surface, on any floor covering or wall covering, having a certain porosity. It is perfectly suitable for wood, for example for furniture or floors, ..., on plastics and even on concrete. Its use on concrete eliminates the production of cement dust and practically cancels the phenomenon of alternating humidity. The surface treated with the varnish according to the present invention is particularly easy to maintain and has remarkable resistance to all aggressive agents. On the other hand, the varnish according to the invention, after correct application and drying, covers the treated surface of a film with very interesting mechanical properties. Said film resists wear, impact, scratches, ... Extreme hardness, it combines flexibility. Its application on soft wood for example, will maintain an impeccable surface, even if an action with a blunt instrument is exerted on said surface. The wood may be bruised below the varnish film, but the said film will regain its original appearance.
Enfin, le vernis selon l'invention a une autre propriété intéressante. Il n'apparat pas, à sa surface, lorsque celle-ci est laissée à l'air libre, de peau ou profite, inutilisable et génante. La formation d'une telle peau avec les vernis et peintures selon l'art antérieur entrante, d'une part une perte de produit et d'autre part, une détérioration du produit restant, en dessous de ladite peau. Il y a notamment concentration des colorants dans ladite peau et le prdduit restant nta plus la meme teinte que le produit initial. Cette propriété du produit selon l'invention est due à l'un de ses constituants dénommé ci-après composant anti-peau. Finally, the varnish according to the invention has another interesting property. It does not appear, on its surface, when it is left in the open air, skin or benefits, unusable and annoying. The formation of such a skin with varnishes and paints according to the incoming prior art, on the one hand a loss of product and on the other hand, a deterioration of the product remaining, below said skin. There is in particular a concentration of dyes in said skin and the product remaining is no longer the same shade as the initial product. This property of the product according to the invention is due to one of its constituents hereinafter called anti-skin component.
Le nouveau vernis selon l'invention est à base d'une résine de polyuréthannes. Il contient en outre des agents siccatifs, un composant anti-peau et un solvant minéral. The new varnish according to the invention is based on a polyurethane resin. It also contains drying agents, an anti-skin component and a mineral solvent.
Ladite résine est une résine alkyd-uréthannes, vendue généralement en solution dans du "white spirit". Said resin is an alkyd-urethane resin, generally sold in solution in "white spirit".
Les siccatifs utilisés sont des octoates et naphténates métalliques . Leur intervention dans la composition du vernis conditionne la qualité de celui-ci, et notamment sa dureté. Ils permettent un séchage pas trop rapide du vernis après application, en assurant une lente évaporation du solvant etconditionne ainsi la dureté du produit fini. The driers used are metal octoates and naphthenates. Their intervention in the composition of the varnish conditions the quality thereof, and in particular its hardness. They allow the varnish not to dry too quickly after application, ensuring slow evaporation of the solvent and thus conditions the hardness of the finished product.
Ledit solvant est un-solvant minéral. On utilise généralement du white spirit. Il permet de régler la viscosité du vernis selon l'invention. Said solvent is a mineral solvent. We usually use white spirit. It allows the viscosity of the varnish according to the invention to be adjusted.
Le composant anti-peau est un produit connu tel que le méthyl éthyl cétoxine. Ses composants de base du vernis selon l'invention entrent dans sa composition, dans les proportions suivantes, exprimées en parties en poids. The anti-skin component is a known product such as methyl ethyl ketoxin. Its basic components of the varnish according to the invention enter into its composition, in the following proportions, expressed in parts by weight.
Solution de résine 70 à 84 parties en poids
Octoates ou néphténates métalliques 1,5 à 3. parties en poids
Composant anti-peau 0,8 à 2 parties en poids
Solvant minéral 15 à 25 parties en poids
Un tel vernis est transparent. Sa fragilité à la lumière limite son emploi, à l'intérieur.Resin solution 70 to 84 parts by weight
Metal octoates or nephtenates 1.5 to 3. parts by weight
Anti-skin component 0.8 to 2 parts by weight
Mineral solvent 15 to 25 parts by weight
Such a varnish is transparent. Its fragility in light limits its use, indoors.
Si lton souhaite teinter le vernis selon l'invention, on ajoute à la composition ci-dessus des pigments ou colorants, connus de lthomme de l'art . Pour une bonne coloration, on en ajoute entre 1,2 et 7,25 parties en poids du vernis transparent. If it is desired to tint the varnish according to the invention, pigments or dyes known to those skilled in the art are added to the above composition. For good coloring, between 1.2 and 7.25 parts by weight of the transparent varnish are added.
Le vernis selon l'invention peut également exister en version satinée ou mate. Pour obtenir lesdites versions, on ajoutera au vernis selon l'invention, coloré ou pas, des agents de matage, connus de l'homme de l'art, à raison de 3 à 12 parties en poids du vernis. The varnish according to the invention can also exist in a satin or matt version. To obtain said versions, matting agents known to those skilled in the art will be added to the varnish according to the invention, colored or not, at a rate of 3 to 12 parts by weight of the varnish.
Le pourcentage d'extrait sec du vernis selon liinvention est très supérieur aux normes . L'homme de l'art sait que ce pourcentage d'extrait sec constitue un critère de la qualité d'un vernis. The percentage of dry extract of the varnish according to the invention is much higher than the standards. Those skilled in the art know that this percentage of dry extract constitutes a criterion for the quality of a varnish.
Le vernis selon l'invention doit être appliqué sur des supports parfaitement préparés , exempts de graisse, poussières, cires,... The varnish according to the invention must be applied to perfectly prepared supports, free from grease, dust, waxes, etc.
Il s'utilise tel quel à la brosse ou au rouleau, dilué dans du white spirit, au pistolet. On en passe généralement plusieurs couches. It can be used as is by brush or roller, diluted in white spirit, with a spray gun. We usually pass several layers.
Les couches doivent etreminc2s et très tirées, ce qui est un facteur d'economie mais surtout de solidité et-d'adhérence dudit vernis. Au travers de telles couches, le séchage sera uniforme et complet. Sur des fonds très poreux ou alvéolaires, très absorbants, il convient de diluer la première couche avec 10 à 15 % environ de white spirit.The layers must be etreminc2s and very drawn, which is a factor of economy but especially of solidity and adhesion of said varnish. Through such layers, the drying will be uniform and complete. On very porous or cellular, very absorbent bases, the first layer should be diluted with approximately 10 to 15% of white spirit.
Ainsi, l'application de ladite couche sera facilitée, et, sera préservée la quantité de solvant à évaporer lentement, ce qui est un gage de solidité. Le pouvoir couvrant du vernis selon l'invention dépend évidemment du support. il est estimé,pour une première couche, de 18 à 22 m2 et plus au litre pour les supports à porosité moyenne et à surface assez lisses, 12 à 15 m2 au litre pour des supports à porosité importante et rugueux. Ledit vernis, pour la seconde, voire la troisième couches couvre encore plus.Thus, the application of said layer will be facilitated, and, the amount of solvent to be evaporated slowly will be preserved, which is a guarantee of solidity. The covering power of the varnish according to the invention obviously depends on the support. it is estimated, for a first layer, from 18 to 22 m2 and more per liter for substrates with medium porosity and with a fairly smooth surface, 12 to 15 m2 per liter for substrates with significant and rough porosity. Said varnish, for the second or even the third layer, covers even more.
Le séchage dudit vernis selon I'invention est aussi important que son-application. I1 conditionne l'homogénéité des structures internes, c' est-à-dire la dureté du produit fini. Suivant le support, il nécessite de3 à 5 heures. Il convient qu'il soit réalisé à l'abri des poussières. Une couche du vernis selon l'invention est recouvrable après, environ, 24 heures. The drying of said varnish according to the invention is as important as its application. It conditions the homogeneity of the internal structures, that is to say the hardness of the finished product. Depending on the medium, it requires 3 to 5 hours. It should be done away from dust. A layer of the varnish according to the invention is recoverable after approximately 24 hours.
D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de l'exemple suivant Cette-illustration de l'invention n'est pas limitative. Other characteristics and advantages of the invention will be better understood on reading the following example. This illustration of the invention is not limiting.
EXEMPLE
Un vernis selon l'invention a la composition suivante
- Solution de résine alkyd-uréthanne 75 parties en poids
(BAYER U 601-60 BV)
- Octoate de plomb 2 parties en poids
- Méthyl éthyl certaine 1 partie en poids
- White spirit 20 parties en poids
Son pourcentage d'extrait sec est de 49 %.EXAMPLE
A varnish according to the invention has the following composition
- Solution of alkyd-urethane resin 75 parts by weight
(BAYER U 601-60 BV)
- Lead octoate 2 parts by weight
- Certain methyl ethyl 1 part by weight
- White spirit 20 parts by weight
Its percentage of dry extract is 49%.
Après 22 jours d'exposition à l'air de ce vernis, une partie de(s) solvant(s) s'est évaporée mais aucune peau ou croûte n' est apparue à sa surface. Une simple addition de white spirit a redonné au vernis sa viscosité initiale et son efficacité totale.. After 22 days of exposure to the air of this varnish, part of the solvent (s) has evaporated but no skin or crust has appeared on its surface. A simple addition of white spirit restored the varnish to its initial viscosity and its total effectiveness.
Ce vernis après application et séchage correct est très résistant. This varnish after application and correct drying is very resistant.
Cet exemple peut etre reproduit afin d'utiliser
- à la place de la solution BAYER 601-60 BV (qui permet l'obten- tion d'un vernis brillant), du BAYER U 601-SS (qui permet l'obtention d'un vernis mat ou satiné ;
- à la place de l'octoate de plomb des octoates et/ou naphténates de cobalt, calcium, zirconium ; ces divers produits sont équivalents comme siccatifs mais ils apportent chacun des propriétés complementaires propres au vernis final. On peut utiliser des mélanges de ces divers produits.This example can be reproduced in order to use
- in place of the BAYER 601-60 BV solution (which allows a glossy varnish to be obtained), BAYER U 601-SS (which allows a matt or satin varnish to be obtained;
- in place of lead octoate, cobalt, calcium, zirconium octoates and / or naphthenates; these various products are equivalent as siccatives but they each bring complementary properties specific to the final varnish. Mixtures of these various products can be used.
Les divers vernis connus et commercialíses à ce jour sur le marché français, vernis à base de "white spirit", ont généralement un taux d'extraits secs inferieur à 45 Z alors que dans les vernis selon l'invention le taux d'extrait sec atteint normalement 49 à 52 . The various varnishes known and commercialized to date on the French market, varnishes based on "white spirit", generally have a dry extract rate lower than 45 Z whereas in the varnishes according to the invention the dry extract rate normally reaches 49 to 52.
Le procédé de préparation du vernis selon l'invention est un procédé classique pour le spécialiste ; ce dernier sait notarament que les divers constituants du mélange-doivent être ajoutés dans un ordre préférenciel, sous agitation convenable (vortex) et que le controle de la viscosité du produit obtenu doit être effectué avant introduction du constituant anti-peau. The process for preparing the varnish according to the invention is a conventional process for the specialist; the latter knows in particular that the various constituents of the mixture must be added in a preferential order, with suitable stirring (vortex) and that the control of the viscosity of the product obtained must be carried out before introduction of the anti-skin constituent.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8412342A FR2574421A1 (en) | 1984-08-03 | 1984-08-03 | Varnish which can be applied to any surface exhibiting some porosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8412342A FR2574421A1 (en) | 1984-08-03 | 1984-08-03 | Varnish which can be applied to any surface exhibiting some porosity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2574421A1 true FR2574421A1 (en) | 1986-06-13 |
Family
ID=9306795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8412342A Withdrawn FR2574421A1 (en) | 1984-08-03 | 1984-08-03 | Varnish which can be applied to any surface exhibiting some porosity |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2574421A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2128794A1 (en) * | 1971-03-09 | 1972-10-20 | Bayer Ag |
-
1984
- 1984-08-03 FR FR8412342A patent/FR2574421A1/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2128794A1 (en) * | 1971-03-09 | 1972-10-20 | Bayer Ag |
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| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |