Title:
INTERFERENCE PIGMENT
Document Type and Number:
Japanese Patent JP2012224858
Kind Code:
A
Abstract:
To provide a silvery white interference pigment with high gloss and a high-gloss interference pigment of bright interference color which are stable and easy to prepare.
The interference pigment based on a coated flake-form substrate comprises: (A) a layer of SiO2 having a layer thickness of 5-350 nm; (B) a high-refractive-index coating composed of titanium dioxide, the coating having a refractive index n of >1.8; and (C) an interference system consisting of alternating high- and low-refractive-index layers having a layer alignment of TiO2-SiO2-TiO2; and optionally (D) an outer protective layer. The flake-form substance is glass flake, mica flake or aluminum oxide flake.
Inventors:
RUEGER REINHOLD
AMBROSIUS KLAUS
MATHIAS MARCUS
KNIESS HELGE BETTINA
AMBROSIUS KLAUS
MATHIAS MARCUS
KNIESS HELGE BETTINA
Application Number:
JP2012152339A
Publication Date:
November 15, 2012
Filing Date:
July 06, 2012
Export Citation:
Assignee:
MERCK PATENT GMBH
International Classes:
C09C1/28; A61K8/25; A61K8/26; A61K8/29; C09C1/00; C09C1/40; C09C3/06; C09D5/03; C09D5/36; C09D7/12; C09D11/02; C09D201/00
Domestic Patent References:
| JPH0693206A | 1994-04-05 | |||
| JP2002179947A | 2002-06-26 | |||
| JP2003513139A | 2003-04-08 | |||
| JP2001152049A | 2001-06-05 | |||
| JP2001098186A | 2001-04-10 | |||
| JP2003513139A | 2003-04-08 | |||
| JP2001152049A | 2001-06-05 | |||
| JP2001098186A | 2001-04-10 | |||
| JPH0693206A | 1994-04-05 |
Foreign References:
| WO2001030920A1 | 2001-05-03 | |||
| WO2001030920A1 | 2001-05-03 |
Attorney, Agent or Firm:
Akio Miyazaki
Ishibashi Masayuki
Masaaki Ogata
Ishibashi Masayuki
Masaaki Ogata
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