Pearlescent pigments based on fine and thin substrates

Pearlescent pigments including a largely transparent platelet-shaped substrate having a density ρS and at least one optically active coating having a density ρM, the substrate having an average size d50 of 3 to 8 μm and an average height hS of 40 to 110 nm. The disclosure further relates to a method...

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Bibliographic Details
Main Authors Schneider, Ralph, Henglein, Frank, Gruener, Michael, Schmidt, Ulrich, Kaupp, Günter, Steinbach, Katrin, Krueger, Peter, Depner, Jens
Format Patent
LanguageEnglish
Published 25.01.2022
Subjects
ADHESIVES
CHEMISTRY
DYES
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
PREPARATION OF CARBON BLACK
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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Summary:Pearlescent pigments including a largely transparent platelet-shaped substrate having a density ρS and at least one optically active coating having a density ρM, the substrate having an average size d50 of 3 to 8 μm and an average height hS of 40 to 110 nm. The disclosure further relates to a method for producing the pearlescent pigments, and also to the use thereof.
Bibliography:Application Number: US20090937818