OPTICALLY VARIABLE INTERFERENCE PIGMENTS

• Main Author: DELUCA, CARMINE, V., JR
• Format: Patent
• Language: English; French
• Published: 27.11.2003
• Edition: 7
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS; INKS; INORGANIC CHEMISTRY; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; PREPARATION OF CARBON BLACK; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; USE OF MATERIALS THEREFOR; WOODSTAINS

Optically variable interference pigments are composed of platelets of at least partly core-free titanium dioxide-coated substrate of about 1-25 mm particle size and an interference thickness of about 5-600 nm which have an oxide coating thereon. L'invention concerne des pigments d'interférence à couleur changeante composés de précipités d'un substrat revêtu d'un dioxyde de titane au moins partiellement dépourvu de noyau présentant une granulométrie d'environ 1 à 25 mm et une épaisseur d'interférence d'environ 5 à 600 nm, et comportant une couche d'oxyde.