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Patent Searching and Data


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)
Application Number:
PCT/JP1997/001939
Publication Date:
December 18, 1997
Filing Date:
June 06, 1997
Export Citation:
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Assignee:
NITTETSU MINING CO LTD (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:
JPS60169412A1985-09-02
JPH0216044A1990-01-19
JPH03120351A1991-05-22
JPH04168163A1992-06-16
JPH08302237A1996-11-19
JPS443083B1
JPS58177911A1983-10-18
JPH01158077A1989-06-21
JPH0393898A1991-04-18
JPS646093A1989-01-10
JPH0229472A1990-01-31
JPH06228604A1994-08-16
JPH0790310A1995-04-04
JPS60169412A1985-09-02
JPH0216044A1990-01-19
JPH03120351A1991-05-22
JPH04168163A1992-06-16
JPH08302237A1996-11-19
JPH0443083B21992-07-15
JPS58177911A1983-10-18
JPH01158077A1989-06-21
JPH0393898A1991-04-18
JPS646093A1989-01-10
JPH0229472A1990-01-31
GB2253839A1992-09-23
EP0668329A21995-08-23
JPH07207251A1995-08-08
EP0515928A11992-12-02
Other References:
See also references of EP 0913432A4
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