ES2585052B1 - Low density multifunctional coating composition - Google Patents
Low density multifunctional coating composition Download PDFInfo
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- ES2585052B1 ES2585052B1 ES201530431A ES201530431A ES2585052B1 ES 2585052 B1 ES2585052 B1 ES 2585052B1 ES 201530431 A ES201530431 A ES 201530431A ES 201530431 A ES201530431 A ES 201530431A ES 2585052 B1 ES2585052 B1 ES 2585052B1
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- 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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
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- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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Abstract
La presente invención tiene por objeto una composición acuosa de un recubrimiento multifuncional de baja densidad (RMBD) cuya composición compuesta de al menos: un multimineral cerámico expandido, un polímero acuoso, un pigmento de color, un coalescente orgánico, opcionalmente un pigmento anticorrosivo, y las posibles combinaciones, donde el multimineral está presente en la composición en una concentración entre 30% y 60% v/v. También la presente invención se refiere al uso de la composición para el recubrimiento y protección de todo tipo de superficies.A subject of the present invention is an aqueous composition of a low density multifunctional coating (RMBD) whose composition consists of at least: an expanded ceramic multimineral, an aqueous polymer, a color pigment, an organic coalescent, optionally an anticorrosive pigment, and the possible combinations, where the multimineral is present in the composition in a concentration between 30% and 60% v / v. Also the present invention relates to the use of the composition for the coating and protection of all types of surfaces.
Description
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Composition de recubrimiento multifuncional de baja densidadLow density multifunctional coating composition
DESCRIPCIONDESCRIPTION
Objeto de la inventionObject of the invention
Esta invention se refiere a una composition de recubrimiento multifuncional de baja densidad (RMBD) y a su uso para el recubrimiento y protection de todo tipo de superficies.This invention relates to a low density multifunctional coating composition (RMBD) and its use for the coating and protection of all types of surfaces.
Antecedentes de la inventionBackground of the invention
En los ultimos 65 anos la industria de la pintura ha avanzado continuamente, tanto en investigation como en desarrollo de nuevos productos. Actualmente se dispone de un amplio surtido de pinturas industriales y decorativas, todas ellas catalogadas por el uso principal al que van destinadas. As! existen por ejemplo pinturas industriales para proteger el hierro y el acero de la corrosion, o esmaltes industriales para realzar el color y el brillo, pinturas anticondensacion, pinturas antimoho, pinturas impermeabilizantes, etc.In the last 65 years the paint industry has advanced continuously, both in research and in the development of new products. There is currently a wide range of industrial and decorative paintings, all cataloged by the main use they are intended for. Ace! There are for example industrial paints to protect iron and steel from corrosion, or industrial enamels to enhance color and brightness, anti-condensation paints, anti-mold paints, waterproofing paints, etc.
Por ejemplo, el estado de la tecnica describe varias composiciones de recubrimiento anticorrosion para metales, especialmente de hierro y acero. Por ejemplo, el documento US 493,107A describe una composition que comprende anhldrido cromico o anhldrido cromico y un compuesto de acido borico, polvo de un metal de base (usualmente zinc o aluminio), un regulador del pH (oxido o hidroxido de un metal), un oxo-hidroxieter o glicol de bajo peso molecular y agua y/o un disolvente organico.For example, the state of the art describes various anticorrosion coating compositions for metals, especially iron and steel. For example, US 493,107A describes a composition comprising chromic anhydride or chromic anhydride and a boric acid compound, powder of a base metal (usually zinc or aluminum), a pH regulator (oxide or hydroxide of a metal) , a low molecular weight oxo-hydroxyether or glycol and water and / or an organic solvent.
Esta composition se suministra usualmente a los usuarios en forma de una combination de una primera composition que comprende anhldrido cromico y opcionalmente compuesto de acido borico, un regulador del pH y agua y/o un disolvente organico miscible en agua, y una segunda composition que comprende un polvo de metal y oxo-hidroxieter o glicol de bajo peso molecular (por ejemplo, propilenglicol). Las dos se mezclan conjuntamente antes del uso y la mezcla se aplica a la superficie de los metales con un grosor predeterminado (hasta un grado en que se forme finalmente una capa de recubrimiento que tenga un grosor de 1 pm o superior) y se somete a tratamiento termico a no menos de 200°C durante por lo menos 0,2 seg.This composition is usually supplied to users in the form of a combination of a first composition comprising chromic anhydride and optionally composed of boric acid, a pH and water regulator and / or a water-miscible organic solvent, and a second composition comprising a metal powder and low molecular weight oxo-hydroxy ether or glycol (for example, propylene glycol). The two are mixed together before use and the mixture is applied to the surface of the metals with a predetermined thickness (to a degree where a coating layer is finally formed having a thickness of 1 pm or more) and subjected to heat treatment at not less than 200 ° C for at least 0.2 sec.
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Esta composition presenta un excelente efecto para impedir la corrosion del hierro y del acero contra el agua salada, efecto que es superior al del recubrimiento con zinc. Ademas, esta composition presenta excelentes prestaciones durante un largo perlodo de tiempo en el ensayo de pulverization continua con sal. Sin embargo, ni tan solo esta composition tiene prestaciones siempre satisfactorias en los ensayos acelerados mas estrictos tales como el ensayo de ciclo complejo, que recientemente se emplea con frecuencia. Dicho ensayo acelerado complejo comprende un ensayo de pulverization con sal, un ensayo de humedecido y de secado, etc., realizados en combination. Esto muestra que la anterior composition no es suficiente en ambientes muy severos, en los cuales se espera unas prestaciones superiores de prevention de la corrosion.This composition has an excellent effect to prevent corrosion of iron and steel against salt water, an effect that is superior to zinc coating. In addition, this composition has excellent performance for a long period of time in the continuous salt spray test. However, not even this composition always has satisfactory performance in the strictest accelerated tests such as the complex cycle test, which is recently used frequently. Said complex accelerated test comprises a salt spray test, a wetting and drying test, etc., performed in combination. This shows that the previous composition is not enough in very severe environments, in which superior corrosion prevention benefits are expected.
En la ultima decada se han desarrollando de forma creciente nuevas materias primas en la frontera de la nanotecnologla. Se trata de productos de un tamano de partlcula muy pequeno que presentan una multitud de propiedades desconocidas hasta ahora y que no cabe duda que al introducirlos en las pinturas tradicionales pueden dar lugar a recubrimientos totalmente diferentes y muy superiores en prestaciones.In the last decade, new raw materials have been increasingly developed at the nanotechnology frontier. These are products of a very small particle size that have a multitude of unknown properties so far and that there is no doubt that introducing them in traditional paints can lead to totally different coatings and far superior in performance.
Dentro del estado de la tecnica relacionado con el empleo de materias ligeras en recubrimientos y pinturas de aplicacion, se han de mencionar los siguientes documentos:Within the state of the art related to the use of light materials in coatings and application paints, the following documents must be mentioned:
La solicitud de patente de invention alemana DE 3433617 A1 describe una pintura de brocha, respectivamente una pintura de dispersion de materia artificial que como mlnimo contiene una materia de relleno o una mezcla de materia de relleno con contenido de vidrio, agua, materia colorante y/o pigmento colorante, as! como, si es el caso, productos para hacerla mate, medios auxiliares de elaboration y/o medios de adicion, donde la materia de relleno que contiene vidrio esta formada por cuerpos de vidrio hueco de partlculas finas y con bolas de vidrio hueco. Ademas, se distingue la pintura descrita por el hecho de que contiene como mlnimo dos materias de relleno diferentes con magnitudes de partlculas y/o formas o estructuras de partlculas diferentes.German patent application DE 3433617 A1 describes a paint brush, respectively a dispersion paint of artificial material which at least contains a filler material or a mixture of filler material containing glass, water, coloring matter and / or coloring pigment, ace! as, if it is the case, products to make it mate, auxiliary means of elaboration and / or means of addition, where the filling material that contains glass is formed by hollow glass bodies of fine particles and with hollow glass balls. In addition, the paint described is distinguished by the fact that it contains at least two different fillers with particle sizes and / or different particle shapes or structures.
Segun una forma de realization preferencial de la pintura descrita, en la mezcla de aplicacion pueden haber adicionalmente presentes facultativamente componentes de inclusion de micro-capsulas de materia artificial y o micro-bolas huecas de materiaAccording to a preferred embodiment of the paint described, in the application mixture additionally, components of inclusion of micro-capsules of artificial material and or hollow micro-balls of matter may be additionally present.
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artificial, las cuales por lo demas pueden estar rellenadas al menos parcialmente con agua.artificial, which otherwise can be filled at least partially with water.
Una variante de la pintura segun DE 3433617 A1 preve que de las dos materias de relleno diferenciables, por lo menos una materia de relleno presenta una forma o estructura similar a una bola, en forma de elipsoide o semi bola y como mlnimo otra materia de relleno debe presentar una estructura o forma en forma de laminitas, discos, barritas, agujas o similares a un cilindro. Ademas, se mencionan tambien materias de relleno en forma de hilos. Una puesta de relieve determinada de una forma de partlcula determinada no ha tenido lugar. Se trata de una enumeration no especlfica de formas de partlculas usuales de materias de relleno para pinturas, donde el requerimiento segun una election determinada de dos formas basicas de partlculas diferentes tiene mas bien un caracter teorico, ya que en muchas materias de relleno, sin ninguna eleccion determinada, estan presentes desde un principio al mismo tiempo partlculas con formas de dos de las categorlas de formas indicadas en DE 34 33 617 A1.A variant of the paint according to DE 3433617 A1 provides that of the two differentiable fillers, at least one filler material has a shape or structure similar to a ball, in the form of an ellipsoid or semi-ball and at least one other filler material It must have a structure or shape in the form of laminitas, discs, bars, needles or similar to a cylinder. In addition, stuffing materials in the form of threads are also mentioned. A particular highlight of a particular particle form has not taken place. This is a non-specific enumeration of forms of usual particles of filler materials for paints, where the requirement according to a specific choice of two basic forms of different particles has rather a theoretical character, since in many fillers, without any determined choice, particles with forms of two of the categories of forms indicated in DE 34 33 617 A1 are present from the beginning at the same time.
Se ha de mencionar como parte del estado del arte tambien a US 4 228 055, la cual se refiere a una composition de pintura mate acuosa, en la cual estan presentes perlas de partlculas finas sobre una base de materia artificial como producto para el mateado. Las partlculas presentes como plaquitas finas y particularmente delgadas se presentan esencialmente no descompuestas, por tanto aproximadamente en su situation original, lo que por ejemplo se manifiesta por su alto brillo, correspondiente a una dureza mineralogica elevada y correspondientemente bordes particularmente duros y delgados por tanto particularmente afilados y cortantes. A ello hay que anadir su relativamente elevada densidad, en el caso de micas en la zona de 2,5 g/cm3 y muy particularmente en el peso, con mica ferrica en la zona siempre de aproximadamente 5 g/cm3.It should also be mentioned as part of the state of the art also US 4 228 055, which refers to a composition of aqueous matte paint, in which fine particle beads are present on a base of artificial material as a product for the matt. The particles present as fine and particularly thin plates appear essentially not decomposed, therefore approximately in their original situation, which for example is manifested by their high brightness, corresponding to a high mineralogical hardness and correspondingly particularly hard and thin edges therefore particularly particularly sharp and sharp. To this must be added its relatively high density, in the case of micas in the area of 2.5 g / cm3 and very particularly in weight, with ferric mica in the area always of approximately 5 g / cm3.
Adicionalmente se ha de referir, la patente de invention EP0971007B1 la cual describe una pintura anticorrosion de base acuosa con un alto contenido de volumen de solidos, especialmente para su uso sobre superficies no ferrosas, particularmente postes galvanizados para conducciones electricas. La pintura anticorrosion de base acuosa con un alto contenido de volumen de solidos contiene partlculas polimericas huecas con un tamano de partlcula menor a 1000 micrones combinadas con aprestos micaceos tales como hematita y silicato de mica, junto con otros blancos de carga, pigmentos y aditivos en una dispersion acuosa de un aglutinante pollmero. La dispersion acuosa descrita contiene pigmentos de color, diferentes blancos de carga oAdditionally, the patent of invention EP0971007B1 which describes a water-based anticorrosion paint with a high volume content of solids, especially for use on non-ferrous surfaces, particularly galvanized posts for electrical conduits. The water-based anti-corrosion paint with a high solids volume content contains hollow polymer particles with a particle size of less than 1000 microns combined with micaceous sizing such as hematite and mica silicate, along with other filler targets, pigments and additives in an aqueous dispersion of a polymer binder. The aqueous dispersion described contains colored pigments, different filler targets or
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aprestos (carbonato de calcio, silicato de aluminio - magnesio y/o silicato de potasio- aluminio- magnesio) y (micro) particulas huecas o perlas huecas, con un tamano de particula inferior a 1000 micrones que constan de materiales de baja densidad de base polimerica o de resina. Esta peculiaridad de las particulas produce el efecto de incrementar el volumen de solidos de la pintura en relacion con el peso de los solidos reduciendo de esta forma su densidad. En estado humedo, lista para su aplicacion, la pintura tiene una densidad de entre 0,80 y 1,50 g/cm3.sizing (calcium carbonate, aluminum-magnesium silicate and / or potassium-aluminum-magnesium silicate) and (micro) hollow particles or hollow beads, with a particle size of less than 1000 microns consisting of low-density base materials polymeric or resin. This peculiarity of the particles produces the effect of increasing the volume of solids in the paint in relation to the weight of the solids, thus reducing their density. In the wet state, ready for application, the paint has a density between 0.80 and 1.50 g / cm3.
Sin embargo, el estado de la tecnica de acuerdo a los documentos localizados, no describe ninguna composition para un Recubrimiento Multifuncional de Baja Densidad (RMBD) que contenga una alta concentration de minerales expandidos naturales o sinteticos (> 30% v/v), lo cual permite obtener una pintura o recubrimiento de muy baja densidad en comparacion con las pinturas tradicionales, por debajo de 0,8 g/cm3. Esta particularidad permite obtener peliculas secas de mayor espesor, aumentando la protection o disminuyendo el numero de manos a aplicar, con el consiguiente ahorro en tiempo y dinero que ello implica.However, the state of the art according to localized documents does not describe any composition for a Multifunctional Low Density Coating (RMBD) containing a high concentration of natural or synthetic expanded minerals (> 30% v / v), which allows to obtain a very low density paint or coating compared to traditional paints, below 0.8 g / cm3. This particularity allows to obtain dry films of greater thickness, increasing the protection or decreasing the number of hands to be applied, with the consequent saving in time and money that this implies.
Entre otras ventajas tecnicas, la composicion del RMBD de la presente invention es menos perjudicial para el ambiente, tiene unas prestaciones anticorrosion drasticamente mejoradas en ambientes de agua salada y presenta un efecto estabilizado de prevention de la corrosion en ambientes de agua dulce.Among other technical advantages, the RMBD composition of the present invention is less harmful to the environment, has dramatically improved anti-corrosion performance in salt water environments and has a stabilized corrosion prevention effect in freshwater environments.
Description detallada de la invencionDetailed description of the invention
La presente invencion tiene por objeto una composicion de recubrimiento multifuncional de baja densidad (RMBD) que comprende al menos un multimineral organico expandido de naturaleza silicica, al menos un polimero acuoso, al menos un pigmento de color, al menos un coalescente organico, opcionalmente al menos un pigmento anticorrosivo, y las posibles combinaciones de los antes mencionados componentes, empleando agua como disolvente.A subject of the present invention is a low density multifunctional coating composition (RMBD) comprising at least one expanded organic multimineral of a silicone nature, at least one aqueous polymer, at least one colored pigment, at least one organic coalescent, optionally at less an anticorrosive pigment, and the possible combinations of the aforementioned components, using water as solvent.
En particular el objeto de la presente invencion es proporcionar una composicion de recubrimiento multifuncional de baja densidad (RMBD) que comprende multiminerales ceramicos huecos de tamano de particulas microscopicas y de muy baja densidad, en una proportion 30 % - 60 % del volumen total. El hecho de anadir estos particulas huecas de naturaleza silicea en tan alta proporcion, permite obtener pinturas o recubrimientos de muy baja densidad, de aproximadamente entre 0,5 a 0,9 g/cm3,In particular, the object of the present invention is to provide a low density multifunctional coating composition (RMBD) comprising hollow ceramic multiminerals of microscopic particle size and very low density, in a proportion 30% -60% of the total volume. The fact of adding these hollow particles of siliceous nature in such a high proportion, allows to obtain paints or coatings of very low density, of approximately between 0.5 to 0.9 g / cm3,
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considerablemente inferior a la densidad de las pinturas tradicionales que oscilan entre 1,10 a 1,70 g /cm3.considerably lower than the density of traditional paints ranging from 1.10 to 1.70 g / cm3.
Estas partlculas de multiminerales, generalmente presentan formas esfericas huecas con un diametro inferior a 150 pm, con camara de aire y membrana gruesa de aproximadamente 7 pm de grosor.These multimineral particles generally have hollow spherical shapes with a diameter less than 150 pm, with an air chamber and a thick membrane approximately 7 pm thick.
De forma preferida pero no limitante, el multimineral expandido utilizado en la presente invencion de la presente invencion se selecciona del grupo formado por una arcilla expandida mineral natural (EMN), una perlita EMN, una vermiculita EMN y esferas ceramicas EMN y/o sinteticas con las caracterlsticas que se muestran en la siguiente tabla.Preferably but not limited to, the expanded multimineral used in the present invention of the present invention is selected from the group consisting of a natural mineral expanded clay (EMN), an EMN perlite, an EMN vermiculite and EMN and / or synthetic ceramic spheres with the characteristics shown in the following table.
- Multimineral Multimineral
- Compuestos Granulometrla Densidad Tono Compounds Granulometrla Density Tone
- Arcilla EMN EMN clay
- Silicatos de Aluminio, Magnesio, Calcio hidratado y otros 0 -16 mm 325 - 750 gr/cm3 terroso Silicates of Aluminum, Magnesium, Hydrated Calcium and others 0 -16 mm 325 - 750 gr / cm3 earthy
- Perlita EMN EMN Perlite
- Silicatos de Aluminio, Sodio, Potasio y otros 0 - 6 mm 30 - 120 gr/cm3 blanco nieve Silicates of Aluminum, Sodium, Potassium and others 0 - 6 mm 30 - 120 gr / cm3 snow white
- Vermiculita EMN EMN Vermiculite
- Silicatos de Hierro, Magnesio y otros 0 - 6 mm 30 - 120 gr/cm3 amarillo dorado Silicates of Iron, Magnesium and others 0 - 6 mm 30 - 120 gr / cm3 golden yellow
- Esferas ceramicas Ceramic spheres
- Silicato de Boro y otros 20 - 300 pm 300 - 500 gr/cm3 blanco traslucido Boron Silicate and others 20 - 300 pm 300 - 500 gr / cm3 translucent white
De forma preferida pero no limitante, el pollmero acuoso utilizado en la presente invencion se selecciona del grupo formado por las emulsiones alquldicas, epoxldicas, acrllicas, poliuretanicas y todas las posibles combinaciones.Preferably but not limited to, the aqueous polymer used in the present invention is selected from the group consisting of alkyd, epoxy, acrylic, polyurethane emulsions and all possible combinations.
De forma preferida pero no limitante, el pigmento anticorrosivo utilizado en la presente invencion se selecciona del grupo formado por oxido de zinc blanco, fosfato de zinc blanco, fosfato de zinc modificado, oxido de hierro micaceo, fosfomolibdatos de zinc, fosfosilicatos de aluminio, fosfosilicatos de zirconio, fosfosilicatos de calcio, borax y todas las posibles combinaciones.Preferably but not limited to, the anticorrosive pigment used in the present invention is selected from the group consisting of white zinc oxide, white zinc phosphate, modified zinc phosphate, micaceous iron oxide, zinc phosphomolibdates, aluminum phosphosilicates, phosphosilicates of zirconium, calcium phosphosilicates, borax and all possible combinations.
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En la composition de la presente invention, los pigmentos color empleados pueden ser de naturaleza organica o inorganica.In the composition of the present invention, the color pigments used may be of an organic or inorganic nature.
De forma preferida pero no limitante, el pigmento de color inorganico utilizado en la presente invention se selecciona del grupo formado por oxido de hierro ocre, oxido de hierro rojo, oxido de cromo verde, dioxido de titanio blanco, Litopon, oxido de hierro amarillo, oxido de hierro negro, oxido de zinc y todas las posibles combinaciones.Preferably but not limited to, the inorganic color pigment used in the present invention is selected from the group consisting of ocher iron oxide, red iron oxide, green chromium oxide, white titanium dioxide, Litopon, yellow iron oxide, black iron oxide, zinc oxide and all possible combinations.
De forma preferida pero no limitante, el pigmento organico utilizado en la presente invention se selecciona del grupo formado por amarillo de cromo, rojo de ftalocianina, verde de ftalocianina, azul de ftalocianina, Amarillo de cadmio, escarlata de molibdeno, negro de humo y todas las posibles combinaciones.Preferably but not limited to, the organic pigment used in the present invention is selected from the group consisting of chromium yellow, phthalocyanine red, phthalocyanine green, phthalocyanine blue, cadmium yellow, molybdenum scarlet, carbon black and all Possible combinations
De forma preferida pero no limitante, los coalescentes organicos utilizados en la presente invention se seleccionan del grupo formado por compuestos dentro de los grupos funcionales de los alcoholes, los glicoles y sus posibles combinaciones.Preferably but not limited to, the organic coalescers used in the present invention are selected from the group consisting of compounds within the functional groups of alcohols, glycols and their possible combinations.
Los coalescentes organicos se anaden en determinadas proporciones con el fin de reducir la Temperatura Minima de Formation del Film (TMFF), que es la temperatura que precisa cada pollmero en emulsion para formar una pellcula continua transparente y dura.The organic coalescers are added in certain proportions in order to reduce the Minimum Formation Temperature of the Film (TMFF), which is the temperature required by each emulsion polymer to form a transparent and hard continuous film.
Los aditivos empleados en la composicion de la presente invencion estan comprendidos dentro del grupo de compuestos con funcion humectante-dispersante, espesante, agentes reologicos, antisedimentantes, antiespumantes y las combinaciones de ellos.The additives used in the composition of the present invention are comprised within the group of compounds with a wetting-dispersing function, thickener, rheological agents, anti-settling agents, anti-foaming agents and combinations thereof.
De forma preferida pero no limitante, los agentes humectantes-dispersantes utilizados en la presente invencion se seleccionan del grupo formado por derivados del acido acrllico y polifosfatos.Preferably but not limited to, the wetting-dispersing agents used in the present invention are selected from the group consisting of acrylic acid derivatives and polyphosphates.
De forma preferida pero no limitante, los agentes espesantes utilizados en la presente invention se seleccionan del grupo formado por derivados de hidroxicelulosa, acidos acrllicos y poliuretanos.Preferably but not limited to, the thickening agents used in the present invention are selected from the group consisting of hydroxycellulose derivatives, acrylic acids and polyurethanes.
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De forma preferida pero no limitante, los agentes antisedimentantes utilizados en la presente invention se seleccionan del grupo formado por sllice pirogenica y bentonitas.Preferably but not limited to, the anti-settling agents used in the present invention are selected from the group consisting of pyrogenic silica and bentonites.
De forma preferida pero no limitante, los agentes antiespumantes utilizados en la presente invencion se seleccionan del grupo formado por derivados de polisiloxanos.Preferably but not limited to, the antifoaming agents used in the present invention are selected from the group consisting of polysiloxane derivatives.
La introduction en las pinturas industriales de estas partlculas minerales de acuerdo a la presente invencion, mejoran notablemente las propiedades tradicionales como por ejemplo la protection contra la corrosion de los metales y la resistencia al desgaste y a la abrasion ya que forman una barrera cristalina de alta dureza y tenacidad, y al mismo tiempo introducen otras nuevas propiedades como el aislamiento termico y acustico y el aumento considerable de la resistencia al fuego o ignifugacion. En las pinturas decorativas para fachadas e interiores mejoran notablemente las propiedades de impermeabilizacion, anticondensacion, antiadherente y antigraffiti, antimohos y anti incrustante de algas, moluscos, crustaceos, etc.The introduction in the industrial paints of these mineral particles according to the present invention, significantly improve the traditional properties such as protection against corrosion of metals and resistance to wear and abrasion since they form a high hardness crystalline barrier and tenacity, and at the same time introduce other new properties such as thermal and acoustic insulation and the considerable increase in resistance to fire or fireproofing. In the decorative paints for facades and interiors, the waterproofing, anti-condensation, non-stick and anti-graffiti, anti-mold and anti-fouling properties of algae, molluscs, crustaceans, etc. are significantly improved.
Los RMBD aplicados sobre cualquier superficie exterior protegen extraordinariamente de la radiation ultravioleta e infrarroja, ya que equivalen a desplegar una especie de cristal continuo que refleja mas del 90% de la radiacion que recibe. Esta superficie permanece siempre frla y contribuye al aislamiento termico de los espacios interiores.The RMBD applied on any outer surface protect extraordinarily from ultraviolet and infrared radiation, since they amount to deploying a kind of continuous crystal that reflects more than 90% of the radiation it receives. This surface always remains cold and contributes to the thermal insulation of the interior spaces.
Los RMBD son productos de altos solidos, una vez aplicados sobre la superficie a proteger la materia seca resultante supera el 75% de la materia humeda, en comparacion con las pinturas tradicionales con base solvente o base acuosa, el contenido en solidos suele oscilar entre el 40 y el 60% del producto, siendo el resto compuestos organicos volatiles. Por lo tanto y debido a este alto contenido en solidos presentes en el RMBD de la presente invencion, es posible obtener elevados espesores de pellcula seca con las tecnicas de aplicacion actuales. Es posible obtener espesores que oscilan entre un mlnimo de 150 micras secas hasta 800 o 1000 micras secas en una sola mano proyectada. Con las pinturas tradicionales es posible obtener espesores secos de 35 a 150 micras generalmente. Por lo tanto con el mismo esfuerzo se obtienen pellculas secas de mayor espesor, aumentando la proteccion o disminuyendo el numero de manos a aplicar, con el consiguiente ahorro en tiempo y dinero que ello implica.RMBDs are products of high solids, once applied on the surface to protect the resulting dry matter exceeds 75% of the wet matter, compared to traditional solvent-based or water-based paints, the solids content usually ranges from 40 and 60% of the product, the rest being volatile organic compounds. Therefore, and due to this high content of solids present in the RMBD of the present invention, it is possible to obtain high thicknesses of dry film with the current application techniques. It is possible to obtain thicknesses ranging from a minimum of 150 dry microns to 800 or 1000 dry microns in a single projected hand. With traditional paints it is possible to obtain dry thicknesses of 35 to 150 microns generally. Therefore with the same effort dry films of greater thickness are obtained, increasing the protection or decreasing the number of hands to be applied, with the consequent saving in time and money that this implies.
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Los RMBD son ligeros y muy faciles de aplicar con equipos Airless usados por los profesionales del sector industrial. Al mismo tiempo las pinturas decorativas son tambien muy faciles de aplicar por el sector del bricolaje "Hagalo Ud. Mismo” "Do it yourself”.RMBDs are lightweight and very easy to apply with Airless equipment used by professionals in the industrial sector. At the same time, decorative paintings are also very easy to apply for the DIY sector "Do It Yourself" "Do it yourself".
El hecho de que los RMBD sean tan ligeros y con una densidad muy similar a la del agua, es decir, 1 gr/cm3, permite equiparar practicamente el concepto de kilo y litro. Asl, por ejemplo, un envase de 20 litros de RMBD pesara aproximadamente 20 kilogramos, sin embargo este envase de 20 litros llenado con una pintura anticorrosiva de densidad 1,40 gr/cm3 aproximadamente, pesara 28 kilogramos. Una diferencia considerable en la calidad del producto y en la loglstica de transporte y manipulation de los envases por los aplicadores profesionales y por los usuarios particulares.The fact that the RMBD are so light and with a density very similar to that of water, that is, 1 gr / cm3, allows to practically equate the concept of kilo and liter. Thus, for example, a 20-liter container of RMBD will weigh approximately 20 kilograms, however this 20-liter container filled with an anticorrosive paint with a density of approximately 1.40 gr / cm3 will weigh 28 kilograms. A considerable difference in the quality of the product and in the logistics of transport and manipulation of the containers by professional applicators and by private users.
Los RMBD estan realizados con combinaciones de pollmeros de base acuosa, con muy bajo contenido en Compuestos Organicos Volatiles (COV/VOC), cumpliendo las mas exigentes normativas medioambientales de la Union Europea. Productos no toxicos respetuosos con el medio ambiente.The RMBD are made with combinations of water-based polymers, with very low content of Volatile Organic Compounds (VOC / VOC), complying with the most demanding environmental regulations of the European Union. Non-toxic products that respect the environment.
EJEMPLOS DE REALIZACIONEXAMPLES OF REALIZATION
Los siguientes ejemplos especlficos que se proporcionan aqul sirven para ilustrar la naturaleza de la presente invention y no han de ser interpretados como limitativos a la invention que aqul se reivindica.The following specific examples provided herein serve to illustrate the nature of the present invention and are not to be construed as limiting the invention claimed herein.
Ejemplo 1: Obtencion de una composition de un RMBD anticorrosivo con capacidad de introducir un aislamiento ignifugo (F-01 Primer T200 Coating)Example 1: Obtaining a composition of an anti-corrosive RMBD capable of introducing a fireproof insulation (F-01 Primer T200 Coating)
%Volumen%Volume
Pollmero acuoso................................................... 35,00
Aqueous polymer ................................................ ... 35.00
Aditivos varios................................................. 2,00
Various additives ................................................ 2.00
Pigmento anticorrosivo......................................... 10,00
Anti-corrosive pigment ......................................... 10.00
Pigmentos color................................................... 10,00
Colored pigments ................................................ ... 10.00
Multiminerales ceramicos expandidos............. 30,00
Expanded ceramic multiminerals ............. 30.00
Coalescentes organicos-COV............................... 8,00
Organic Coalescers-VOCs ............................... 8.00
Agua destilada...................................................... 5,00
Distilled water................................................ ...... 5.00
100,00100.00
Ejemplo 2: Obtencion de una composition de un RMBD tipo esmalte o laca de acabado para proteccion de las radiaciones solares y mejorador de las propiedades antiincrustantes (F-02 Lacquer T200 Coating)Example 2: Obtaining a composition of an RMBD type enamel or lacquer finish for protection from solar radiation and improver of antifouling properties (F-02 Lacquer T200 Coating)
%Volumen%Volume
Polimero acuoso............................................. 50,00
Aqueous polymer ............................................. 50.00
Aditivos varios................................................. 2,00
Various additives ................................................ 2.00
Pigmentos color............................................... 5,00
Colored pigments ............................................... 5 , 00
10 Multiminerales ceramicos expandidos.............. 35,00
10 Expanded ceramic multiminerals .............. 35.00
Coalescentes organicos-COV.......................... 5,00
Organic Coalescers-VOCs .......................... 5.00
Agua destilada................................................. 3,00
Distilled water................................................ 3.00
100,00100.00
Claims (15)
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