EP0305560A1
Expired / Lapsed
EP
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Metal particle
Assignee: Nippon Paint Co Ltd
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Filing: 1987-08-31
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Granted: —
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Expires: 2007-08-31
Abstract
Abstract Disclosed is a metal particle having a maximum dimension of not more than 1 mm surface-treated with an aqueous solution containing phosphate ions, soluble ions of vanadium and oxygen. This particle can be a metallic pigment having excellent brightness retention and wetting properties to a binder resin.
Inventors
- 👤 Toshihiro Okai
- 👤 Yoshiaki Okumura
- 👤 Mitsuyuki Oda
- 👤 Takashi Yamamoto
- 👤 Teruaki Kuwajima
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 09:02
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/62; B; B22; B22F; B22F1/00; B22F1/14; B22F1/145; C09C1/64; C09C1/642; C09C3/00; C09C3/06; C09C3/063; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/40; C23C22/42; C23C22/68; C01; C01P; C01P2002/00; C01P2002/02; C01P2004/00; C01P2004/30; C01P2004/32; C01P2004/34; C01P2004/60; C01P2004/61; C01P2006/00; C01P2006/60; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
27 words
A metal particle having a maximum dimension of not more than 1 mm surface-treated with an aqueous solution containing phosphate ions, soluble ions of vanadium and oxygen.
Claim 2
Dependent Claim
27 words
A metal particle having a maximum dimension of not more than 1 mm surface-treated with an aqueous solution containing phosphate ions, soluble ions of vanadium and oxygen.
Claim 3
Dependent Claim
33 words
The metal particle according to Claim 1 wherein the surface treatment was conducted by spraying said aqueous solution for treatment to the metal particle, or immersing the metal particle in said aqueous solution.
Claim 4
Dependent Claim
40 words
The metal particle according to Claim 1 wherein said aqueous solution for treatment contain 0.001 to 0.1 mole/liter of the soluble ions of vanadium, 0.001 to 0.1 mole/liter of the phosphate ions and has a pH of 5 to 9.
Claim 5
Dependent Claim
15 words
The metal particle according to Claim 1 wherein the metal particle is a metallic pigment.
Claim 6
Dependent Claim
16 words
The metal particle according to Claim 4 wherein the metallic pigment is an aluminum flake pigment.
References Cited (Backward Citations)
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