Consejo Superior De Investigaciones Cientificas

Fabrica Nacional De Moneda Y Timbre-real Casa De La Moneda

Juan José Romero Fanego

Javier Gamo Aranda

Israel Lorite Villalba

Vicente Garcia Juez

José Francisco Fernández Lozano

Andrés Ruiz Quevedo

Miguel Angel Rodriguez Barbero

Vicente García Juez

Fernando Rubio Marcos

Jose Francisco Fernandez Lozano

José Francisco Fernándezlozano

Miguel Ángel García García-Tuñon

Adrian Quesada Michelena

Maria Soledad Martin González

Miguel Ángel Rodríguez Barbero

José Luis Costa Kramer

Miguel ÁNgel RODRÍGUEZ Barbero

Adrían Quesada Michelena

María Soledad MARTÍN GONZÁLEZ

Miguel ÁNgel GARCÍA GARCÍA-TUÑON

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.

Use of radiofrequency wave absorbing markets for the authentication of security documents

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.

Use of Raman markers for authenticating security documents

The invention relates to a method for the dispersion of synthetic or natural nanoparticles and nanocomposite materials and to the use thereof in different sectors including those of ceramics, coatings, polymers, construction, paints, catalysis, pharmaceuticals and powdered materials in general.

Method for the dry dispersion of nanoparticles and the production of hierarchical structures and coatings

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Madrid, Spain

Juan José Romero Fanego