Thermochromic effect pigment and process for producing the same

PCT No. PCT/EP92/02799 Sec. 371 Date Jun. 7, 1994 Sec. 102(e) Date Jun. 7, 1994 PCT Filed Dec. 3, 1992 PCT Pub. No. WO93/12195 PCT Pub. Date Jun. 24, 1993A thermochromic effect pigment comprising a thermochromic liquid crystal material encapsulated with a polymer and coated with one or more inorgani...

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Hauptverfasser:	HERBSKI, MAGARETE, SAGE, IAN CHARLES, OSTERRIED, KARL
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES GLASS HUMAN NECESSITIES HYGIENE INKS JOINING GLASS TO GLASS OR OTHER MATERIALS LAKES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MEDICAL OR VETERINARY SCIENCE METALLURGY MINERAL OR SLAG WOOL MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PREPARATION OF CARBON BLACK PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS THEREFOR WOODSTAINS
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Zusammenfassung:	PCT No. PCT/EP92/02799 Sec. 371 Date Jun. 7, 1994 Sec. 102(e) Date Jun. 7, 1994 PCT Filed Dec. 3, 1992 PCT Pub. No. WO93/12195 PCT Pub. Date Jun. 24, 1993A thermochromic effect pigment comprising a thermochromic liquid crystal material encapsulated with a polymer and coated with one or more inorganic metal oxides or nearly insoluble metal salts selected from Al2O3, SnO2, ZrO2, TiO2, CaO, SiO2, ZnO, MgO or BaSO4. The pigment is stable in solvent-based formulations and can be used as a colorant in the form of an aqueous suspension or as a powder in lacquer compositions, plastic compositions, dyed filter compositions, dyed glass compositions, dyed cosmetic compositions, printing ink compositions, and in hair coloring agents.