Abstract: Disclosed is a composite particle for use in a marking that is suitable for identification/authentication purposes. The particle comprises at least one superparamagnetic portion and at least one thermoluminescent portion coated with an thermoisolating portion. Optionally also a thermoconductive portion between the superparamagnetic and thermoluminscent portions.

Abstract: Security element including a first and second pattern formed by a first and second material respectively in or on a first and a second region of a substrate respectively, the first pattern partially overlapping with said second pattern, the first material comprising a first luminescent dye, which upon excitation by electromagnetic radiation falling within its excitation wavelength range emits electromagnetic radiation in a first emission wavelength range, the second material comprising a second luminescent dye, which upon excitation by electromagnetic radiation falling within its excitation wavelength range emits electromagnetic radiation in a second emission wavelength range, said first emission wavelength range overlapping with the excitation wavelength range of the second luminescent dye, so that upon irradiation within the excitation wavelength range of the first luminescent dye the second luminescent dye is excited, in the overlapping area of the patterns, to emit electromagnetic radiation in the emissio

Abstract: The invention relates to a method for authenticating a security marking including at a long afterglow compound capable of emitting long afterglow luminescence light in a given wavelength region, the method allowing to detect a presence and an amount of said long afterglow compound based on comparison of a measured initial intensity value of a spectral component of the emitted light within said wavelength region and associated afterglow time with corresponding reference values representative of a reference amount value of a genuine long afterglow compound. The invention also relates to a reader and system operable to implement the steps of the method.

Abstract: Security element comprising a first material MAT1 and a second material MAT2 formed in or on a substrate, in such a manner that areas occupied by MAT1 and MAT2 overlap partially or fully, the first material MAT1 comprising a phosphorescent pigment (donor), the second material MAT2 comprising a fluorescent dye or pigment (acceptor), wherein the phosphorescent pigment present in MAT1 is capable of emitting phosphorescence radiation in at least one first phosphorescence emission wavelength range ?1e upon excitation by electromagnetic radiation falling within a phosphorescence excitation wavelength range ?1a, and the fluorescent dye or pigment present in MAT2 is capable of emitting fluorescence radiation in at least one second fluorescence emission wavelength range ?2e upon excitation by electromagnetic radiation falling within an fluorescence excitation wavelength range ?2a of the fluorescent dye or pigment, and said first phosphorescence emission wavelength range ?1e of the phosphorescent pigment present in MA

Abstract: The invention relates to a method for authenticating a security marking including at a long afterglow compound capable of emitting long afterglow luminescence light in a given wavelength region, the method allowing to detect a presence and an amount of said long afterglow compound based on comparison of a measured initial intensity value of a spectral component of the emitted light within said wavelength region and associated afterglow time with corresponding reference values representative of a reference amount value of a genuine long afterglow compound. The invention also relates to a reader and system operable to implement the steps of the method.

Abstract: The present invention relates to markers for liquids that can be used to authenticate the origin and genuineness of a liquid, preferably a bulk liquid such as fuel. For this purpose, the present invention teaches the use of a polymer capable of forming a semiconducting polymer particle (pdot) in the liquid in small amounts. The invention encompasses a liquid comprising a) a polymer that is capable of forming a semiconducting polymer particle (pdot), the concentration of the polymer being 10 ppm by weight or less, and b) an organic substance in an amount of 90% by weight or more. The invention furthermore envisages the use of such a polymer as an authenticating marker in a liquid, preferably a fuel, and a method for authenticating the genuineness and/or origin of a liquid comprising a polymer capable of forming a semiconducting polymer particle (pdot), comprising the steps i. concentrating, isolating and/or extracting the polymer capable of forming a semiconducting polymer particle (pdot); ii.

Abstract: A security element comprising a first and a second pattern PAT1 and PAT2 formed in or on a substrate, the first pattern PAT1 being formed by a first material INK1 applied to a first region of the substrate, the second pattern PAT2 being formed by a second material INK2 applied to a second region of the substrate, said first and second regions of the substrate overlapping, wherein a part of the first pattern PAT1 overlaps with a part of said second pattern PAT2, the first material INK1 comprises a first luminescent dye or pigment DYE1, which upon excitation by electromagnetic radiation falling within an excitation wavelength range ?1a of the first luminescent dye or pigment DYE1 is capable of emitting electromagnetic radiation in at least one first emission wavelength range ?1e, and the second material INK2 comprises a second luminescent dye or pigment DYE2, which upon excitation by electromagnetic radiation falling within an excitation wavelength range ?2a of the second luminescent dye or pigment DYE2 is c

Abstract: Security element comprising a first material MAT1 and a second material MAT2 formed in or on a substrate, in such a manner that areas occupied by MAT1 and MAT2 overlap partially or fully, the first material MAT1 comprising a phosphorescent pigment (donor), the second material MAT2 comprising a fluorescent dye or pigment (acceptor), wherein the phosphorescent pigment present in MAT1 is capable of emitting phosphorescence radiation in at least one first phosphorescence emission wavelength range ?1e upon excitation by electromagnetic radiation falling within a phosphorescence excitation wavelength range ?1a, and the fluorescent dye or pigment present in MAT2 is capable of emitting fluorescence radiation in at least one second fluorescence emission wavelength range ?2e upon excitation by electromagnetic radiation falling within an fluorescence excitation wavelength range ?2a of the fluorescent dye or pigment, and said first phosphorescence emission wavelength range ?1e of the phosphorescent pigment present in MAT

Abstract: The present invention relates to markers for liquids that can be used to authenticate the origin and genuineness of a liquid, preferably a bulk liquid such as fuel. For this purpose, the present invention teaches the use of a polymer capable of forming a semiconducting polymer particle (pdot) in the liquid in small amounts. The invention encompasses a liquid comprising a) a polymer that is capable of forming a semiconducting polymer particle (pdot), the concentration of the polymer being 10 ppm by weight or less, and b) an organic substance in an amount of 90% by weight or more. The invention furthermore envisages the use of such a polymer as an authenticating marker in a liquid, preferably a fuel, and a method for authenticating the genuineness and/or origin of a liquid comprising a polymer capable of forming a semiconducting polymer particle (pdot), comprising the steps i. concentrating, isolating and/or extracting the polymer capable of forming a semiconducting polymer particle (pdot); ii.

Abstract: Disclosed is a composite particle for use in a marking that is suitable for identification/authentication purposes. The particle comprises at least one superparamagnetic portion and at least one thermoluminescent portion coated with an thermoisolating portion. Optionally also a thermoconductive portion between the superparamagnetic and thermoluminscent portions.