WO2016020555A1 - Pigment paste suitable for use in coatings, and method for the production thereof - Google Patents

Pigment paste suitable for use in coatings, and method for the production thereof Download PDF

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Publication number
WO2016020555A1
WO2016020555A1 PCT/ES2014/000156 ES2014000156W WO2016020555A1 WO 2016020555 A1 WO2016020555 A1 WO 2016020555A1 ES 2014000156 W ES2014000156 W ES 2014000156W WO 2016020555 A1 WO2016020555 A1 WO 2016020555A1
Authority
WO
WIPO (PCT)
Prior art keywords
pigment paste
pigments
film
solvents
coatings
Prior art date
Application number
PCT/ES2014/000156
Other languages
Spanish (es)
French (fr)
Inventor
Clara Camprubi RICARDO
Original Assignee
Eigenmann & Veronelli Iberica, S.L.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eigenmann & Veronelli Iberica, S.L. filed Critical Eigenmann & Veronelli Iberica, S.L.
Publication of WO2016020555A1 publication Critical patent/WO2016020555A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0084—Dispersions of dyes
    • C09B67/0091—Process features in the making of dispersions, e.g. ultrasonics
    • 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
    • C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
    • 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
    • C09D17/00—Pigment pastes, e.g. for mixing in paints
    • 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
    • C09D5/02—Emulsion paints including aerosols

Definitions

  • the object of the present invention is a pigment paste applicable in coatings, comprising, pigments, dispersants, film-forming resin and solvents; as well as a method for its manufacture.
  • This invention has characteristics aimed at achieving a pigment paste with a degree of fineness or particle size less than one mill.
  • the pigments are made up of insoluble, organic and inorganic products, used to cover the applied surface by changing its color, appearance and finish. It should be mentioned that the pigments have a very variable particle size, and cannot be used without prior dispersion, since a heterogeneous, rough layer with a final appearance that would not meet the minimum quality requirements would be obtained.
  • An objective of the manufacturers of these pigment pastes is to improve the color yield and the quality of the finish, the applicant of the present invention being unaware of the existence in the market of pigment pastes that provide a finish and a quality greater than that achieved with the techniques of dispersion used previously and in which pigment pastes reach a fineness between 5 and 25 microns.
  • the pigment paste object of this invention being applicable in coatings, and comprising in its composition insoluble pigments, dispersing agents, film-forming resin and solvents; It has characteristics aimed at solving the problems mentioned above and specifically to obtain a degree of dispersion of the pigments that provides surprising effects in terms of color performance and the quality of the finishes of the coatings.
  • the pigment paste of the invention comprising in its composition the elements mentioned above that is to say: insoluble pigments, dispersing agents, film-forming resin and solvents has the particularity of being constituted by a nanodispersion of the insoluble pigments in the indicated components, presenting the pigment paste a degree of fineness or particle size less than 1 miera.
  • This degree of dispersion and size of insoluble pigments, less than 1 meter, provides surprising improvements compared to traditional products, the following being noteworthy: - Improvement of color performance.
  • the stability of the pigment paste with this degree of dispersion of the pigments is achieved through the use of dispersing agents, preferably polymeric and film-forming resins, preferably alkyd or aldehyde, compatible with the formulations of the coatings to be manufactured.
  • dispersing agents preferably polymeric and film-forming resins, preferably alkyd or aldehyde, compatible with the formulations of the coatings to be manufactured.
  • the weight percentages of the different components of the pigment paste are included in the following values:
  • pigments from 1,00 to 40,00%; dispersing agent from 0.00 to 30.00%; film-forming resin from 1,00 to 40,00%; and solvents and / or water in the remaining percentage until reaching 100.00%.
  • Also included in the present invention is a method for manufacturing the pigment paste described above, said method comprising the following steps: - the nanodispersion of the components in a dispersion machine using Zirconium-Ytrium microspheres of a section between 0.1 and 0.3 millimeters, until reaching a pigment paste with a fineness or particle size of less than 1 mire ;
  • the pigment paste comprises the percentage by weight of the components mentioned below: 30% insoluble pigments, 20% of a dispersing agent, namely polymeric, 30% alkyd film-forming resin and 20% solvent, specifically in this case butyl glycol acetate; the pigment paste presenting a degree of fineness or particle size of less than 1 miera.

Abstract

The invention relates to a pigment paste which comprises insoluble pigments, dispersing agents, film-forming resin and solvents, and is formed by a nano-dispersion of the insoluble pigments in the indicated components, said pigment paste having a particle size smaller than 1 micron. The percentages by weight of the different components are as follows: from 10.00 to 40.00 % pigments; from 10.00 to 25.00 % dispersing agent; from 10.00 to 40.00 % film-forming resin; and solvents and/or water in the remaining portion up to 100.00 %. The invention also relates to a method for producing the pigment paste.

Description

DESCRIPCIÓN  DESCRIPTION
Titulo Pasta pigmentaria aplicable en recubrimientos y método para su fabricación. Objeto de la invención. Title Pigment paste applicable in coatings and method for its manufacture. Object of the invention.
El objeto de la presente invención es una pasta pigmentaria aplicable en recubrimientos, que comprende, pigmentos, dispersantes, resina filmógena y disolventes; así como a un método para su fabricación. The object of the present invention is a pigment paste applicable in coatings, comprising, pigments, dispersants, film-forming resin and solvents; as well as a method for its manufacture.
Esta invención presenta unas características orientadas a conseguir una pasta pigmentaria con un grado de finura o tamaño de partícula inferior a una miera. This invention has characteristics aimed at achieving a pigment paste with a degree of fineness or particle size less than one mill.
Estado de la técnica. State of the art
Actualmente es conocido en el mercado la existencia de pastas pigmentarias destinadas a las industrias de recubrimientos, entendiendo como tales los productos líquidos aplicables a un soporte de cualquier tipo y que por secado, reticulación, o cualquier otro sistema se convierten en una película o capa seca fuertemente adherida al soporte en cuestión. It is currently known in the market the existence of pigment pastes intended for the coatings industries, understanding as such the liquid products applicable to a support of any type and that by drying, crosslinking, or any other system become a dry film or layer strongly attached to the support in question.
También es conocida la obtención de estas pastas pigmentarias mediante la dispersión de los pigmentos en maquinas de molienda-dispersión, por ejemplo monocilíndricas, tricilíndricas, o molinos de bolas cerámicas. It is also known to obtain these pigment pastes by dispersing the pigments in grinding-dispersing machines, for example single-cylinder, tricylindrical, or ceramic ball mills.
Los equipos y técnicas utilizadas permiten obtener pastas pigmentarias con un grado de finura o tamaño de partícula comprendido entre 5 y 25 mieras The equipment and techniques used make it possible to obtain pigment pastes with a fineness or particle size between 5 and 25 microns
Los pigmentos están conformados por productos insolubles, orgánicos e inorgánicos, usados para cubrir la superficie aplicada cambiando su color, aspecto y acabado. Cabe mencionar que los pigmentos tienen un tamaño de partículas muy variable, y no pueden usarse sin una dispersión previa, ya que se obtendría una capa heterogénea, rugosa y con un aspecto final que no cumpliría los mínimos requisitos de calidad. The pigments are made up of insoluble, organic and inorganic products, used to cover the applied surface by changing its color, appearance and finish. It should be mentioned that the pigments have a very variable particle size, and cannot be used without prior dispersion, since a heterogeneous, rough layer with a final appearance that would not meet the minimum quality requirements would be obtained.
Un objetivo de los fabricantes de estas pastas pigmentarias es mejorar el rendimiento colorístico y la calidad del acabado, desconociendo el solicitante de la presente invención la existencia en el mercado de pastas pigmentarias que proporcionen un acabado y una calidad mayor a la conseguida con las técnicas de dispersión empleadas anteriormente y en las qué las pastas pigmentarias alcanzan un grado de finura entre 5 y 25 mieras. An objective of the manufacturers of these pigment pastes is to improve the color yield and the quality of the finish, the applicant of the present invention being unaware of the existence in the market of pigment pastes that provide a finish and a quality greater than that achieved with the techniques of dispersion used previously and in which pigment pastes reach a fineness between 5 and 25 microns.
Descripción de la invención. La pasta pigmentaria objeto de esta invención, siendo aplicable en recubrimientos, y comprendiendo en su composición pigmentos insolubles, agentes dispersantes, resina filmógena y disolventes; presenta unas características orientadas a resolver los problemas mencionados anteriormente y concretamente a obtener un grado de dispersión de los pigmentos que proporciona unos efectos sorprendentes en lo que se refiere al rendimiento colorístico y a la calidad de los acabados de los recubrimientos. Description of the invention The pigment paste object of this invention, being applicable in coatings, and comprising in its composition insoluble pigments, dispersing agents, film-forming resin and solvents; It has characteristics aimed at solving the problems mentioned above and specifically to obtain a degree of dispersion of the pigments that provides surprising effects in terms of color performance and the quality of the finishes of the coatings.
La pasta pigmentaria de la invención, comprendiendo en su composición los elementos mencionados anteriormente es decir: pigmentos insolubles, agentes dispersantes, resina filmógena y disolventes presenta la particularidad de estar constituida por una nanodispersión de los pigmentos insolubles en los componentes indicados, presentando la pasta pigmentaria un grado de finura o tamaño de partícula inferior a 1 miera. Este grado de dispersión y tamaño de los pigmentos insolubles, inferior a 1 miera proporciona unas mejoras sorprendentes respecto a los productos tradicionales, siendo de destacar: - Mejora del rendimiento colorístico. The pigment paste of the invention, comprising in its composition the elements mentioned above that is to say: insoluble pigments, dispersing agents, film-forming resin and solvents has the particularity of being constituted by a nanodispersion of the insoluble pigments in the indicated components, presenting the pigment paste a degree of fineness or particle size less than 1 miera. This degree of dispersion and size of insoluble pigments, less than 1 meter, provides surprising improvements compared to traditional products, the following being noteworthy: - Improvement of color performance.
- Mejora de las propiedades de brillo y acabado. - Eliminación de fenómeno de "rub out", o cambio de color por roce en la película húmeda. - Improvement of gloss and finish properties. - Elimination of "rub out" phenomenon, or change of color by rubbing on the wet film.
- Facilita la reproducción del producto en producción, ya que el pigmento se encuentra en fase de total rendimiento. - It facilitates the reproduction of the product in production, since the pigment is in full performance phase.
- Elimina las tensiones internas en la capa de recubrimiento una vez seca, ya que no existen partículas sobredimensionadas. - Eliminates internal stresses in the coating layer once dry, as there are no oversized particles.
- Aumenta la transparencia del pigmento, lográndose capas totalmente transparentes, similares a las obtenidas con colorantes, pero con las propiedades de resistencia de los pigmentos. - Increases the transparency of the pigment, achieving completely transparent layers, similar to those obtained with dyes, but with the resistance properties of the pigments.
La estabilidad de la pasta pigmentaria con este grado de dispersión de los pigmentos se consigue mediante el uso de agentes dispersantes, preferiblemente poliméricos y de resinas filmógenas, preferentemente alquídicas o aldehídicas, compatibles con las formulaciones de los recubrimientos a fabricar. The stability of the pigment paste with this degree of dispersion of the pigments is achieved through the use of dispersing agents, preferably polymeric and film-forming resins, preferably alkyd or aldehyde, compatible with the formulations of the coatings to be manufactured.
En una realización de la invención los porcentajes en peso de los diferentes componentes de la pasta pigmentaria se encuentran comprendidos entre los valores siguientes: In an embodiment of the invention, the weight percentages of the different components of the pigment paste are included in the following values:
- pigmentos de 1 ,00 a 40,00 %; agente dispersante de 1 ,00 a 30,00 %; resina filmógena de 1 ,00 a 40,00%; y disolventes y/o agua en el porcentaje restante hasta alcanzar el 100,00 %. - pigments from 1,00 to 40,00%; dispersing agent from 0.00 to 30.00%; film-forming resin from 1,00 to 40,00%; and solvents and / or water in the remaining percentage until reaching 100.00%.
En la presente invención también se incluye un método para la fabricación de la pasta pigmentaria descrita anteriormente comprendiendo dicho método los pasos siguientes: - la nanodispersión de los componentes en una máquina de dispersión utilizando microesferas de Zirconio-Ytrio de una sección comprendida entre 0,1 y 0,3 milímetros, hasta alcanzar una pasta pigmentaria con un grado de finura o tamaño de partícula en inferior a 1 miera; Also included in the present invention is a method for manufacturing the pigment paste described above, said method comprising the following steps: - the nanodispersion of the components in a dispersion machine using Zirconium-Ytrium microspheres of a section between 0.1 and 0.3 millimeters, until reaching a pigment paste with a fineness or particle size of less than 1 mire ;
- la eliminación de la pasta pigmentaria de las partículas superiores a 1 ,0 miera mediante el filtrado de dicha pasta pigmentaria con filtros calibrados. Realización preferida de la invención. - the removal of the pigment paste from particles greater than 1.0 mire by filtering said pigment paste with calibrated filters. Preferred embodiment of the invention.
En una realización concreta de la invención la pasta pigmentaria comprende el porcentaje en peso de los componentes que se mencionan a continuación: un 30% de pigmentos insolubles, un 20% de un agente dispersante, concretamente polimérico, un 30% de resina filmógena alquídica y un 20% de disolvente, concretamente en este caso acetato de butilglicol; presentando la pasta pigmentaria un grado de finura o tamaño de partícula inferior a 1 miera. In a specific embodiment of the invention the pigment paste comprises the percentage by weight of the components mentioned below: 30% insoluble pigments, 20% of a dispersing agent, namely polymeric, 30% alkyd film-forming resin and 20% solvent, specifically in this case butyl glycol acetate; the pigment paste presenting a degree of fineness or particle size of less than 1 miera.
Una vez descrita suficientemente la naturaleza de la invención, así como un ejemplo de realización preferente, se hace constar a los efectos oportunos que los materiales, forma, tamaño y disposición de los elementos descritos podrán ser modificados, siempre y cuando ello no suponga una alteración de las características esenciales de la invención que se reivindican a continuación. Once the nature of the invention has been sufficiently described, as well as a preferred embodiment, it is stated for the appropriate purposes that the materials, shape, size and arrangement of the described elements may be modified, provided that this does not imply an alteration. of the essential features of the invention that are claimed below.

Claims

REIVINDICACIONES
1. - Pasta pigmentaria aplicable en recubrimientos; y que comprende en su composición: pigmentos insolubles, agentes dispersantes, resina filmógena y disolventes; caracterizada porque está constituida por una nanodispersión de los pigmentos insolubles en los componentes indicados, presentando dicha pasta pigmentaria un grado de finura o tamaño de partícula inferior a 1 miera. 1. - Pigment paste applicable in coatings; and comprising in its composition: insoluble pigments, dispersing agents, film-forming resin and solvents; characterized in that it is constituted by a nanodispersion of the insoluble pigments in the indicated components, said pigment paste having a degree of fineness or particle size of less than 1 mire.
2. - Pasta pigmentaria; según la reivindicación 1 , caracterizada porque los porcentajes en peso de los diferentes componentes se encuentran comprendidos entre los valores siguientes: pigmentos de 1 ,00 a 40,00 %; agente dispersante de 1 ,00 a 30,00 %; resina filmógena de 1 ,00 a 40,00%; y disolventes y/o agua en el porcentaje restante hasta alcanzar el 100,00 %. 2. - Pigmentary paste; according to claim 1, characterized in that the percentages by weight of the different components are included in the following values: pigments of 1,00 to 40,00%; dispersing agent from 0.00 to 30.00%; film-forming resin from 1,00 to 40,00%; and solvents and / or water in the remaining percentage until reaching 100.00%.
3. Método para la fabricación de la pasta pigmentaria de las reivindicaciones anteriores, caracterizado porque comprende: 3. Method for manufacturing the pigment paste of the preceding claims, characterized in that it comprises:
- la nanodispersión de los componentes en una máquina de dispersión utilizando microesferas de Zirconio - Ytrio de una sección comprendida entre 0,1 y 0,3 milímetros, hasta alcanzar una pasta pigmentaria con un grado de finura o tamaño de partícula en inferior a 1 miera;  - the nanodispersion of the components in a dispersion machine using Zirconium - Ytrium microspheres of a section between 0.1 and 0.3 millimeters, until reaching a pigment paste with a fineness or particle size of less than 1 mire ;
- la eliminación de la pasta pigmentaria de las partículas superiores a 1 ,0 miera mediante el filtrado de dicha pasta pigmentaria con filtros calibrados.  - the removal of the pigment paste from particles greater than 1.0 mire by filtering said pigment paste with calibrated filters.
PCT/ES2014/000156 2014-08-08 2014-09-29 Pigment paste suitable for use in coatings, and method for the production thereof WO2016020555A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201431215A ES2558903B1 (en) 2014-08-08 2014-08-08 Pigment paste applicable in coatings and method for manufacturing
ESP201431215 2014-08-08

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WO2016020555A1 true WO2016020555A1 (en) 2016-02-11

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Citations (5)

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WO2002085992A1 (en) * 2001-04-19 2002-10-31 Commonwealth Scientific And Industrial Research Organisation Coating composition capable of absorbing uv radiation
US20050056189A1 (en) * 2003-09-12 2005-03-17 Decker Eldon L. Coating composition having fluorescent colorants
EP1564262A1 (en) * 2004-02-12 2005-08-17 Alain Wayser Colored liquid product for protection of substrate
US20080187708A1 (en) * 2007-02-05 2008-08-07 Ppg Industries Ohio, Inc. Coating system exhibiting cool dark color
US20100184911A1 (en) * 2009-01-22 2010-07-22 Ppg Industries Ohio, Inc. Aqueous dispersions of polymer-enclosed particles, related coating compositions and coated substrates

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2533543T3 (en) * 2003-06-24 2015-04-10 Ppg Industries Ohio, Inc. Aqueous dispersions of microparticles having a phase formed by nanoparticles and coating compositions containing the same
GB0610240D0 (en) * 2006-05-23 2006-07-05 Sun Chemical Ltd Dispersions of nano-sized materials
TW200944560A (en) * 2007-10-25 2009-11-01 Fujifilm Corp Organic pigment fine particles and method for producing the same, pigment dispersion composition containing the same, photocurable composition, ink jet ink, and color filter using the same and method for producing the color filter
US8357426B2 (en) * 2008-01-11 2013-01-22 Nanomateriales S.A. De C.V. Single step milling and surface coating process for preparing stable nanodispersions

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002085992A1 (en) * 2001-04-19 2002-10-31 Commonwealth Scientific And Industrial Research Organisation Coating composition capable of absorbing uv radiation
US20050056189A1 (en) * 2003-09-12 2005-03-17 Decker Eldon L. Coating composition having fluorescent colorants
EP1564262A1 (en) * 2004-02-12 2005-08-17 Alain Wayser Colored liquid product for protection of substrate
US20080187708A1 (en) * 2007-02-05 2008-08-07 Ppg Industries Ohio, Inc. Coating system exhibiting cool dark color
US20100184911A1 (en) * 2009-01-22 2010-07-22 Ppg Industries Ohio, Inc. Aqueous dispersions of polymer-enclosed particles, related coating compositions and coated substrates

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ES2558903A1 (en) 2016-02-09

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