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Title:
GLOSS PIGMENTS HAVING HIGH COLOUR SATURATION
Document Type and Number:
WIPO Patent Application WO2003076520
Kind Code:
A3
Abstract:
The invention relates to coloured gloss pigments having specific particle dimensions comprising a transparent core of a silicon oxide of the composition SiO0.03 to SiO0.95 and, optionally, further coatings of silicon dioxide, carbon, a partially transparent metal and/or a dielectric of high refractive index, to a coating method suitable therefor wherein metallic silicon is vapour-deposited in the presence of a low oxygen partial pressure, to the use of such gloss pigments in pigmenting plastics, surface coatings, printing inks and cosmetic compositions, and also to pigmented compositions comprising such gloss pigments.

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Inventors:
BUJARD PATRICE (CH)
Application Number:
PCT/EP2003/002196
Publication Date:
February 05, 2004
Filing Date:
March 04, 2003
Export Citation:
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Assignee:
CIBA SC HOLDING AG (CH)
BUJARD PATRICE (CH)
International Classes:
A61K8/18; A61K8/00; A61K8/20; A61K8/25; A61K8/26; A61K8/29; A61Q1/00; A61Q1/02; A61Q1/04; A61Q1/06; A61Q1/10; A61Q1/12; C09C1/00; C09C3/06; C09D7/12; C09D11/02; (IPC1-7): C09D5/36; C09C1/00
Foreign References:
EP0874026A21998-10-28
DE19618569A11997-11-13
US5472491A1995-12-05
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