CH442118A - Process and product for the treatment of tiles, bricks and similar products - Google Patents
Process and product for the treatment of tiles, bricks and similar productsInfo
- Publication number
- CH442118A CH442118A CH440265A CH440265A CH442118A CH 442118 A CH442118 A CH 442118A CH 440265 A CH440265 A CH 440265A CH 440265 A CH440265 A CH 440265A CH 442118 A CH442118 A CH 442118A
- Authority
- CH
- Switzerland
- Prior art keywords
- product
- tiles
- solution
- polyester
- salt
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/4853—Epoxides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/488—Other macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
- C04B41/4884—Polyurethanes; Polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/82—Coating or impregnation with organic materials
- C04B41/83—Macromolecular compounds
-
- 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
-
- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing compounds
- C08G59/4028—Isocyanates; Thioisocyanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Catalysts (AREA)
Description
Procédé et produit pour le traitement des tuiles, briques et produits similaires De par leur nature, les matériaux de construction traditionnels et plus particulièrement les tuiles, sont dégradés ou altérés par l'action conjuguée d'au moins cinq agents destructeurs, ces dégradations résultant de la porosité du matériau considéré et, aussi, de lia d@imen- sion de ses canicules.
Ces cinq agents destructeurs sont les suivants <I>1. Les sels solubles :</I> L'acide sulfurique notamment forme des sels solubles qui., par dessèchement, disso cient les tuiles. En effet, en pénétrant dans les canicules, les solutions salines, souvent sursaturées, cristallisent à l'intérieur desdites canicules et dissocient les grains de la tuile qui se désagrègent et tombent en poudre en lais sant des alvéoles qui vont sans cesse en s'agrandissant.
<I>2. Le gel</I><B>:</B> Les dégradations par le gel sont bien con nues et là encore le phénomème commence par infil tration d'eau dans les canicules de la tuile, l'abaissement de la température extérieure entraînant la formation de glace, avec augmentation concomitante de volume, les canicules se brisent, la destruction totale se poursuit par les cycles successifs de gel et de dégel.
<I>3. Les bactéries:</I> L'action des bactéries est peu im portante, mais la présence de ces micro-organismes est néanmoins réelle. C'est par l'action des bactéries oxy dantes ou désulfurantes que les gaz sulfureux et l'hydro gène sulfuré qui sont les constituants essentiels des fumées des grandes villes (par elles-mêmes sans action sur les tuiles) sont transformés en ion sulfurique qui peut dégrader la tulle par formation de sels solubles.
<I>4. Les déjections d'animaux :</I> En s'accrochant aux tuiles, les déjections des oiseaux, constituées essentielle ment de substances organiques, créent un milieu favora ble au développement des végétaux inférieurs.
<I>5. Les végétaux inférieurs:</I> Ces végétaux ou mous ses trouvent sur les tuiles humides un terrain favorable à leur développement, lequel se fait au détriment de certains éléments constitutifs du matériau. A l'action destructive propre de cette flore parasitaire s'ajoute cel le de l'humidité qu'entretient la texture spongieuse de ces lichens, algues, champignons, mousses, etc.
Il s'est donc avéré nécessaire de parer à ces dégra dations en assurant une protection des tuiles, sans pour autant augmenter trop sensiblement le prix de revient de ce matériau qui. est de très grande consommation.
Il convient, d'autre part, de conserver aux tuiles leur effet de respiration naturelle dans le sens intérieur-exté- rieur.
Le procédé, suivant l'invention, est caractérisé en ce qu'on pulvérise à froid sur la surface externe du produit en terre cuite à traiter et après sa cuisson, une solution d'un seul et d'un polyester pour former une résine poly mère pénétrant en profondeur suffisante dans les cani cules ou porosités en y déposant les matières actives qui y sont fixées après polymérisation, cette résine servant de catalyseur à cette polymérisation, sans constituer un écran filmogène.
Le produit pour la mise en ceuvre du procédé ci:- dessus est caractérisé en ce qu'i:l consiste en une solu- biion, dans des solvants, d'un mélange d'un sel et d'un polyester pour former une résine polymère, formant, après polymérisation, une chaîne macromoléculaire de protection, cette solution étant de faible viscosité tout en présentant une concentration en matière sèche assez élevée de l'ordre de 40 /o.
Cette imprégnation constitue ainsi un écran hydrofu ge non fillmo-gène, qui s'oppose à l'absorption de l'eau, de l'humidité ou des dilutions de substances corrosives, tout en permettant au matériau de véhiculer, de l'inté rieur vers l'extérieur, les fluides gazeux migrant dans sa masse, assurant ainsi une ventilation nécessaire à la bonne conservation de la tuile qui, de ce fait, devient auto-lavable. Cet avantage, qui-est essentiel,
autorise toute possi= bilité d'échanges, notamment par osmose, et assure l'assainissement de la tuile qui peut normalement respi rer sous la protection de la résine de synthèse.
Ces résines sont avantageusement colorées et l'im prégnaton de tuiles au moyen de ces résines colorées exclut toute disparition de la coloration par érosion naturelle.
Ce procédé permet donc simultanément, de conférer aux tuiles la patine qu'acquerront les tuiles vieillies, sans les rendre lisses, et en conséquence, sans leur con férer aucun accroissement de. .danger pour la circulation sur les toitures. Les pigments ou matières colorantes, utilisés avec ces résines sont, de préférence, d'origine minérale, .de . façon à présenter toute .garantie de solidité à la lumière et aux intempéries.
Comme indiqué dans ce qui précède, ce procédé est appliqué entièrement à froid sans nécessiter. aucune cuisson. Un étuvage à température modérée peut seule=-- ment intervenir pour accélérer l'évaporation des sol vants et permettre une mise en pille très rap'@de des tuiles après leur traitement.
D'autre part, étant donné que ce procédé s'applique après la cu'sson normale du produit, on a pu éliminer, au préalable, ceux présentant des imperfections. Il ne nécessite par a:#lleurs aucune opération ultérieure de recusson.
La quantité de solution â utiliser est variable suivant le degré d'absorption de la tuile. Comme ordre- de grandeur pour une fabricat'son de tunes courantes du commerce, il a été trouvé une consommation de 125 g au m-.
Il est donné ci-dessous un exemple de composition et de pourcentage exprimés en poids pour un kilo, Résine polyester ramifiée contenant des groupes hydroxyles . . . . . . . . . . 14,8% Isocyanate aromatique polyfonctionnel ...... 18,3% Acétate d'éthyl glycol . . . . . . . . . . . . . . . . . . .
ï 9,8% Méthyl éthyl cétone . . . . . . . . . . . . . . . . . . . . 28,5% Acétate de butyl . . . . . .. . . . . . . . . . . . . .. . . . 8,5% Toluol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,2% Siccatifs<B>.............. ...............</B> 0;
10/0 Pigments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13,8% Il est à noter que le mélange doit être fait au -mo ment de l'emploi.
Process and product for the treatment of tiles, bricks and similar products By their nature, traditional building materials and more particularly tiles, are degraded or altered by the combined action of at least five destructive agents, these degradations resulting from the porosity of the material considered and, also, of the size of its heat waves.
These five destructive agents are as follows <I> 1. Soluble salts: </I> Sulfuric acid in particular forms soluble salts which., By drying out, dissolve the tiles. Indeed, by penetrating into heatwaves, saline solutions, often supersaturated, crystallize inside said heat waves and dissociate the grains of the tile which disintegrate and fall into powder, leaving alveoli which are constantly growing. .
<I> 2. Frost </I> <B>: </B> Degradation by frost is well known and here again the phenomenon begins with the infiltration of water into the heatwaves of the tile, the lowering of the outside temperature resulting in the formation of ice, with a concomitant increase in volume, the heat waves break up, the total destruction continues with the successive cycles of freezing and thawing.
<I> 3. Bacteria: </I> The action of bacteria is insignificant, but the presence of these microorganisms is nonetheless real. It is by the action of oxidizing or desulphurizing bacteria that the sulphurous gases and hydrogen sulphide which are the essential constituents of the smoke of large towns (by themselves without any action on the tiles) are transformed into sulfuric ion which can degrade the tulle by formation of soluble salts.
<I> 4. Animal droppings: </I> By clinging to the tiles, bird droppings, made up essentially of organic substances, create a favorable environment for the development of lower plants.
<I> 5. Lower plants: </I> These plants or soft ones find on damp tiles a favorable ground for their development, which is done to the detriment of certain constituent elements of the material. In addition to the destructive action of this parasitic flora, there is that of the humidity maintained by the spongy texture of these lichens, algae, fungi, mosses, etc.
It has therefore proved necessary to counteract these degradations by providing protection for the tiles, without increasing the cost price of this material too significantly. is of very great consumption.
On the other hand, it is advisable to keep the tiles their natural breathing effect in the interior-exterior direction.
The process according to the invention is characterized in that a cold spray on the external surface of the terracotta product to be treated and after its firing, a solution of one and of a polyester to form a poly resin. mother penetrating in sufficient depth into the cani cules or porosities by depositing therein the active materials which are fixed there after polymerization, this resin serving as a catalyst for this polymerization, without constituting a film-forming screen.
The product for carrying out the above process: - above is characterized in that it consists of a solution, in solvents, of a mixture of a salt and of a polyester to form a resin polymer, forming, after polymerization, a macromolecular protective chain, this solution being of low viscosity while having a fairly high solids concentration of the order of 40%.
This impregnation thus constitutes a non-filling hydrofu ge screen, which opposes the absorption of water, humidity or dilutions of corrosive substances, while allowing the material to convey, from the inside. towards the outside, the gaseous fluids migrating in its mass, thus ensuring the ventilation necessary for the good conservation of the tile which, as a result, becomes self-washing. This advantage, which is essential,
allows any possibility of exchanges, in particular by osmosis, and ensures the sanitation of the tile which can normally breathe under the protection of the synthetic resin.
These resins are advantageously colored and the impregnation of tiles by means of these colored resins excludes any disappearance of the coloring by natural erosion.
This process therefore simultaneously makes it possible to impart to the tiles the patina which the aged tiles will acquire, without making them smooth, and consequently, without giving them any increase in. .danger for traffic on roofs. The pigments or coloring materials used with these resins are preferably of mineral origin. so as to present any guarantee of solidity to light and to bad weather.
As indicated in the above, this process is applied entirely cold without requiring. no cooking. Steaming at moderate temperature can only intervene to accelerate the evaporation of the exposed soles and allow very rapid piling of the tiles after their treatment.
On the other hand, given that this process is applied after the normal cu'sson of the product, it has been possible to eliminate, beforehand, those exhibiting imperfections. It does not require a: #lleurs any subsequent recusson operation.
The amount of solution to be used is variable depending on the degree of absorption of the tile. As an order of magnitude for a manufacture of common commercial tunes, a consumption of 125 g / m was found.
An example of composition and percentage expressed by weight per kilogram is given below. Branched polyester resin containing hydroxyl groups. . . . . . . . . . 14.8% Polyfunctional aromatic isocyanate ...... 18.3% Ethyl glycol acetate. . . . . . . . . . . . . . . . . . .
ï 9.8% Methyl ethyl ketone. . . . . . . . . . . . . . . . . . . . 28.5% Butyl acetate. . . . . ... . . . . . . . . . . . ... . . 8.5% Toluol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,2% Drying agents <B> .............. ............... </B> 0;
10/0 Pigments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.8% It should be noted that the mixing must be done during use.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR44672A FR1400473A (en) | 1964-04-09 | 1964-04-09 | Method and product for the treatment of tiles, bricks and similar products |
Publications (1)
Publication Number | Publication Date |
---|---|
CH442118A true CH442118A (en) | 1967-08-15 |
Family
ID=9694421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH440265A CH442118A (en) | 1964-04-09 | 1965-03-31 | Process and product for the treatment of tiles, bricks and similar products |
Country Status (8)
Country | Link |
---|---|
AT (1) | AT254029B (en) |
BE (1) | BE661753A (en) |
CH (1) | CH442118A (en) |
ES (1) | ES311433A1 (en) |
FR (1) | FR1400473A (en) |
GB (1) | GB1064016A (en) |
LU (1) | LU48353A1 (en) |
NL (1) | NL6504533A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3830648A (en) * | 1971-04-05 | 1974-08-20 | Varian Associates | Photoconductor-glass binder plate with insulating resin in pores |
CA2030260A1 (en) * | 1990-05-11 | 1991-11-12 | Philip O'brien | Encapsulating process and agent |
-
0
- BE BE661753D patent/BE661753A/xx unknown
-
1964
- 1964-04-09 FR FR44672A patent/FR1400473A/en not_active Expired
-
1965
- 1965-03-31 CH CH440265A patent/CH442118A/en unknown
- 1965-03-31 AT AT292465A patent/AT254029B/en active
- 1965-04-02 GB GB14201/65A patent/GB1064016A/en not_active Expired
- 1965-04-05 ES ES0311433A patent/ES311433A1/en not_active Expired
- 1965-04-07 LU LU48353A patent/LU48353A1/xx unknown
- 1965-04-09 NL NL6504533A patent/NL6504533A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NL6504533A (en) | 1965-10-11 |
FR1400473A (en) | 1965-05-28 |
LU48353A1 (en) | 1965-06-08 |
AT254029B (en) | 1967-05-10 |
GB1064016A (en) | 1967-04-05 |
BE661753A (en) | 1900-01-01 |
ES311433A1 (en) | 1965-10-16 |
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