Title:
MULTILAYER COATED POWDER
Document Type and Number:
WIPO Patent Application WO/1997/047693
Kind Code:
A1
Abstract:
A pigment powder which, without the use of a dye and a pigment, can color a light substrate powder and can be dispersed in a fluid to design a single color pigment for a color ink of blue, green, yellow or the like and a filler for plastic and paper and has a stable hue. A material powder for color cosmetics which can design a single color powder for mascara and eyebrow pencil and can absorb ultraviolet and infrared rays harmful to the skin. A light powder which can be dispersed in a fluid to prepare a material for an electrorheology fluid, particularly a material for a color fluid. A multilayer coated powder comprising a powder nucleus particle (1) having a specific gravity of 0.1 to 10.5, such as an acrylic resin particle or an inorganic hollow particle and a plurality of thin coatings (such as a titanium dioxide layer, a titania layer, a polystyrene layer, or a metallic silver layer) (2,3) provided on the surface of the nucleus particle (1), the thin coatings being different from each other in refractive index.
Inventors:
NAKATSUKA KATSUTO (JP)
ATARASHI TAKAFUMI (JP)
ATARASHI TAKAFUMI (JP)
Application Number:
PCT/JP1997/001939
Publication Date:
December 18, 1997
Filing Date:
June 06, 1997
Export Citation:
Assignee:
NITTETSU MINING CO LTD (JP)
NAKATSUKA KATSUTO (JP)
ATARASHI TAKAFUMI (JP)
NAKATSUKA KATSUTO (JP)
ATARASHI TAKAFUMI (JP)
International Classes:
A61K8/11; A61Q1/10; A61Q17/04; C09C1/00; C09C1/30; C09C3/00; C09C3/06; C09C3/10; C09D11/00; C09D11/02; (IPC1-7): C09C3/00; C08K9/00; C09D11/00; A61K7/02; C09K3/00; C10M125/04; C10M171/06
Foreign References:
JPS60169412A | 1985-09-02 | |||
JPH0216044A | 1990-01-19 | |||
JPH03120351A | 1991-05-22 | |||
JPH04168163A | 1992-06-16 | |||
JPH08302237A | 1996-11-19 | |||
JPS443083B1 | ||||
JPS58177911A | 1983-10-18 | |||
JPH01158077A | 1989-06-21 | |||
JPH0393898A | 1991-04-18 | |||
JPS646093A | 1989-01-10 | |||
JPH0229472A | 1990-01-31 | |||
JPH06228604A | 1994-08-16 | |||
JPH0790310A | 1995-04-04 | |||
JPS60169412A | 1985-09-02 | |||
JPH0216044A | 1990-01-19 | |||
JPH03120351A | 1991-05-22 | |||
JPH04168163A | 1992-06-16 | |||
JPH08302237A | 1996-11-19 | |||
JPH0443083B2 | 1992-07-15 | |||
JPS58177911A | 1983-10-18 | |||
JPH01158077A | 1989-06-21 | |||
JPH0393898A | 1991-04-18 | |||
JPS646093A | 1989-01-10 | |||
JPH0229472A | 1990-01-31 | |||
GB2253839A | 1992-09-23 | |||
EP0668329A2 | 1995-08-23 | |||
JPH07207251A | 1995-08-08 | |||
EP0515928A1 | 1992-12-02 |
Other References:
See also references of EP 0913432A4
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