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Multilayered luster pigments
   
Document Number
US Patent 7060126
Issued Date
June 13, 2006
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Abstract
The invention relates to multilayered luster pigments based on metallic substrates, which are completely surrounded by a plurality of layers, where these layers comprise at least one layer pack (A) having a colorless dielectric layer of a material with a refractive index n of .ltoreq.1.8, and a colorless dielectric layer of a material with a refractive index n of >1.8, and a selectively or non-selectively absorbent layer (B), and to a process for their production, and to their use.
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Number of Claims:
28
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Owner
Merck Patent GmbH (Darmstadt,DE)
Published
June 13, 2006
Application Number
10/166,715
Filed
June 12, 2002
US Classification
106/415   106/403 106/404 106/419 106/436 106/442 106/453 106/454 106/456 106/457 106/459 106/480
Int'l Classification
C09C   1/62   (20060101)  
Assistant Examiner
Priority Data
Jun 12, 2001 [DE] 101 28 489
USPTO Field of Search
106/403   106/404   106/415   106/419   106/436   106/442   106/453   106/454   106/456   106/457   106/459   106/480  
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7452597 - Interference pigments comprising a layer of silicon oxide - Owned by Ciba Specialty Chemicals Corporation (Tarrytown, NY)

The present invention relates to pigments, comprising (A) optionally a layer consisting of a metal, (B) at least one layer, which is located between the layers (A) and (C), if a layer (A) is present, and consists of the metal, silicon (Si) and oxygen (O), and (C) optionally a layer consisting of SiO.sub.z with 0.70.ltoreq.z.ltoreq.2.0 on layer (B), a process for the production of the pigments and their use in ink-jet printing, for dyeing textiles, for pigmenting coatings, paints, printing inks, plastics, cosmetics, glazes for ceramics and glass.

Claims
Description
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