NON-CONDUCTIVE PIGMENTS IN A MULTI-LAYER FILM AND METHODS OF MAKING

Non-conductive pigments, coatings, films, articles, methods of manufacture thereof, and methods of use thereof are provided. The non-conductive pigment comprises a flake comprising at least four layers comprising alternating low index of refraction layers and high index of refraction layers. A diffe...

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Bibliographische Detailangaben
Hauptverfasser:	DECKER, Eldon L, HARRIS, Rachel Dory, DUARTE, Nicolas Benjamin, CONNOR, Daniel
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES ANALOGOUS ARRANGEMENTS USING OTHER WAVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DYES FILLING PASTES INKS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHYSICS POLISHES PREPARATION OF CARBON BLACK RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Non-conductive pigments, coatings, films, articles, methods of manufacture thereof, and methods of use thereof are provided. The non-conductive pigment comprises a flake comprising at least four layers comprising alternating low index of refraction layers and high index of refraction layers. A difference in an average index of refraction between adjacent layers as measured over a wavelength range of 400 nm to 700 nm is at least 1.5. In certain examples, the high index of refraction layers have a Q value of at least 0.930, such as, at least 0.950 or at least 1.000. The pigment has an average visible specular reflectance of at least 80% and the pigment exhibits and the flake has a bandwidth of at least 300 nm between an upper wavelength and a lower wavelength at which a specular reflectance drops below 50%.