Glass-ceramic discs for use in pigments

The present invention relates to a glass composition comprising crystalline phases, and to glass flakes produced therefrom. These glass flakes can be used as base substrate for effect pigments. The glass flakes can furthermore be used in paints, coatings, printing inks, plastics and in cosmetic form...

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Bibliographic Details
Main Authors RUEGER REINHOLD, GEISEN ANKE, KARN GERALD
Format Patent
LanguageEnglish
Published 29.10.2013
Subjects
ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
COMPOSITIONS BASED THEREON
CORRECTING FLUIDS
DYES
FILLING PASTES
INKS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
USE OF MATERIALS THEREFOR
WOODSTAINS
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Summary:The present invention relates to a glass composition comprising crystalline phases, and to glass flakes produced therefrom. These glass flakes can be used as base substrate for effect pigments. The glass flakes can furthermore be used in paints, coatings, printing inks, plastics and in cosmetic formulations. The glass flakes are converted into glass-ceramics, and are present in one of the following composition ranges I or II in % by weight: I: 40-50 SiO2, 10-20 B2O3, 10-20 Na2O, 15-30 TiO2; II: 10-60 SiO2, 5-30 B2O3, 5-40 TiO2, 2-20 Nb2O5, 2-20 Fe2O3, 5-40 Na2O+K2O+CaO+SrO+BaO.
Bibliography:Application Number: US20090994497