Abstract: The present invention relates to a security marker; a method of preparing same; the use of said security marker; a security article, document, or element comprising said marker; the use of said security article, document, or element; an object of value comprising said marker; a method of preparing said security article, document, or element or said object of value; a method for determining the authenticity of said security article, document, or element or said object of value; and a system for determining the authenticity of said security article, document, or element or said object of value.

Abstract: The present invention relates to activated and ground sodium hexametaphosphate frit particles and antimicrobial composite material comprising said activated and ground sodium hexametaphosphate frit particles embedded in a thermoplastic polymer such as low density polyethylene (LDPE). The invention also relates to the method for obtaining the composite material of the invention and a thermal activation method for the thermal activation of a sodium hexametaphosphate salt in order to generate the activated and ground sodium hexametaphosphate frit particles. The antimicrobial material of the invention is preferably used in the food industry.

Abstract: The present invention relates to a nanostructured phosphorescent pigment comprising an Al2O3 substrate; MAl2O4:X nanocrystals, where M is a cation selected from Ca2+, Sr2+, Ba2+, Mg2+, Zn3+ and combinations thereof and where X is a cation selected from Eu3+, Dy3+, Nd3+, Er3+, La3+, Lu3+, Ce3+, Y3+, Gd3+, Tb3+, Tm3+, Yb3+ and combinations thereof, disposed on the Al2O3 substrate; and nanocrystals of molten salt disposed on the MAl2O4:X nanocrystals. Additionally, the invention relates to a method for preparing the nanostructured phosphorescent pigment of the invention comprising the steps of i) mixing starting materials comprising a cation M precursor, a cation X precursor, Al2O3 and a molten salt; ii) heating the mixture resulting from step (i) in reducing atmosphere.

Abstract: The present invention relates to the use of non-deactivatable security compositions comprising the combination of at least two types of particles of oxide materials, where said particles have a different size and/or morphology, and where the inorganic oxide materials have at least one transition metal or one lanthanide element, and radiofrequency wave absorption properties. The invention also relates to security articles, documents or elements incorporating these compositions, as well as to a method and to a system for detection thereof.

Abstract: A method for producing a domestic appliance plate from a starting mixture. In order to provide a domestic appliance plate having a high resistance to thermal shock, good thermal insulation, and advantageous mechanical properties, at least magnesium silicate hydrate, kaolinite, calcined kaolinite, and aluminum oxide are used for the starting mixture.

Abstract: The present invention relates to a nanostructured phosphorescent pigment comprising an Al2O3 substrate; MAl2O4:X nanocrystals, where M is a cation selected from Ca2+, Sr2+, Ba2+, Mg2+, Zn2+ and combinations thereof and where X is a cation selected from Eu2+, Dy3+, Nd3+, Er3+, La3+, Lu3+, Ce3+, Y3+, Sm3+, Gd3+, Tb3+, Tm3+, Yb3+ and combinations thereof, disposed on the Al2O3 substrate; and nanocrystals of molten salt disposed on the MAl2O4:X nanocrystals. Additionally, the invention relates to a method for preparing the nanostructured phosphorescent pigment of the invention comprising the steps of i) mixing starting materials comprising a cation M precursor, a cation X precursor, Al2O3 and a molten salt; ii) heating the mixture resulting from step (i) in reducing atmosphere.

Abstract: A method for producing a domestic appliance plate from a starting mixture. In order to provide a domestic appliance plate having a high resistance to thermal shock, good thermal insulation, and advantageous mechanical properties, at least magnesium silicate hydrate, kaolinite, calcined kaolinite, and aluminum oxide are used for the starting mixture.

Abstract: The invention relates to a method for producing a cementitious composite, comprising: 1) a first step of conditioning silica nanoparticles, in which the nanoparticles are heated to a temperature between 85-235° C. for a sufficiently long time interval so as to obtain a maximum humidity content of 0.3% relative to the total weight of the material resulting from the first step; 2) a dry dispersion step, in which the conditioned nanoparticles in step 1) are dispersed over cement and in which inert grinding balls are used; 3) a step of conditioning the cementitious composite obtained in step 2), in which the grinding balls are separated from the cementitious composite produced. The invention also relates to the resulting composite, to cement derivatives comprising said composite, preferably mortars and concrete, to the production method thereof and to the use of these materials in industry.

Abstract: The present invention relates to the use of non-deactivatable security compositions comprising the combination of at least two types of particles of oxide materials, where said particles have a different size and/or morphology, and where the inorganic oxide materials have at least one transition metal or one lanthanide element, and radiofrequency wave absorption properties. The invention also relates to security articles, documents or elements incorporating these compositions, as well as to a method and to a system for detection thereof.

Abstract: The present invention relates to the use of non-deactivatable security compositions comprising the combination of at least two types of particles of oxide materials, where said particles have a different size and/or morphology, and where the inorganic oxide materials have at least one transition metal or one lanthanide element, and radiofrequency wave absorption properties. The invention also relates to security articles, documents or elements incorporating these compositions, as well as to a method and to a system for detection thereof.

Abstract: The present invention relates to a method for preparing hierarchically ordered structures of inorganic phosphate particles, homogeneously deposited on the surface of a phyllosilicate, which is characterized in that it comprises the following steps: a) obtaining an acid solution of precursor compounds of an inorganic phosphate; b) preparing a dispersion of particles of a phyllosilicate in aqueous medium and acidifying the phyllosilicate dispersion by adding at least one acid, thereby obtaining an acid dispersion; c) mixing the acid solution obtained in step a) with the dispersion obtained in step b); and d), with stirring, adding a base to the mixture obtained in step c) until the required pH value for precipitating the corresponding inorganic phosphate on the phyllosilicate particles has been achieved, resulting in a hierarchically ordered structure of homogeneously distributed submicrometric or nanometric inorganic phosphate particles supported on the phyllosilicate surface.

Abstract: The present invention relates to the use of non deactivable security markers comprising the combination of at least two types of nanoparticles of materials presenting Raman effect, wherein said nanoparticles are in a dispersed state or is forming agglomerates of between 2 and 500 nanoparticles. The invention also relates to security documents, articles or elements incorporating these markers, as well as to a method and system for the detection thereof.

Abstract: The present invention relates to the use of non-deactivatable security compositions comprising the combination of at least two types of particles of oxide materials, where said particles have a different size and/or morphology, and where the inorganic oxide materials have at least one transition metal or one lanthanide element, and radiofrequency wave absorption properties. The invention also relates to security articles, documents or elements incorporating these compositions, as well as to a method and to a system for detection thereof.

Abstract: The present invention relates to a method for preparing hierarchically ordered structures of inorganic phosphate particles, homogeneously deposited on the surface of a phyllosilicate, which is characterized in that it comprises the following steps: a) obtaining an acid solution of precursor compounds of an inorganic phosphate; b) preparing a dispersion of particles of a phyllosilicate in aqueous medium and acidifying the phyllosilicate dispersion by adding at least one acid, thereby obtaining an acid dispersion; c) mixing the acid solution obtained in step a) with the dispersion obtained in step b); and d), with stirring, adding a base to the mixture obtained in step c) until the required pH value for precipitating the corresponding inorganic phosphate on the phyllosilicate particles has been achieved, resulting in a hierarchically ordered structure of homogeneously distributed submicrometric or nanometric inorganic phosphate particles supported on the phyllosilicate surface.

Abstract: The present invention relates to the use of non deactivable security markers comprising the combination of at least two types of nanoparticles of materials presenting Raman effect, wherein said nanoparticles are in a dispersed state or is forming ag glomerates of between 2 and 500 nanoparticles. The invention also relates to security documents, articles or elements incorporating these markers, as well as to a method and system for the detection thereof.

Abstract: The process is characterised in that it comprises at least one sol-gel layer with a maximum thickness of 800 nm, where said sol-gel layer comprises nanoparticles with a laminar crystal structure, and where each sol-gel layer is obtained from a silicon alkoxide solution; preparation of a dispersion that comprises at least one type of particles with a spherical, fibrillar or laminar morphology, and a laminar crystal structure, wherein at least one of the dimensions, thickness or diameter, of said particles is less than 400 nm; addition of the dispersion prepared to the solution; deposition of the suspension on said substrate; thermal treatment of the substrate; and, in the case of multilayer coatings, optionally, the addition of high-dimensional particles and repetition of the steps, provided that the thermal treatment of the last layer, or outer layer, is performed at a temperature equal to or greater than that of the preceding layer. The invention also relates to the sol-gel coating thus obtained.

Abstract: A method for producing a domestic appliance plate from a starting mixture. In order to provide a domestic appliance plate having a high resistance to thermal shock, good thermal insulation, and advantageous mechanical properties, at least magnesium silicate hydrate, kaolinite, calcined kaolinite, and aluminum oxide are used for the starting mixture.