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EP0319918A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Metallic coating method

Assignee: Kansai Paint Co Ltd
•
Filing: 1988-12-06
•
Granted: —
•
Expires: 2008-12-06
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Abstract

Abstract Disclosed is a metallic coating method compris­ing the steps of applying a color coating composition, applying a metallic coating composition containing a metallic pigment to the layer of the color coating composition and applying a clear coating composition to the layer of the metallic coating composition, the method being characterized in that the color coating composition is able to form a layer having a Munsell value of 0 to 6; that the metallic coating composition contains a metallic pigment and a vehicle as main components, the metallic pigment being iron oxide particles of hexagonal platelike shape which contain at least 80% by weight of α-iron oxide crystals; that about 90% by weight or more of the metallic pigment has a longitudinal size of about 30 µm or less and 40% by weight or more of the pigment has a longitudinal size of about 5 to about 15 µm; that the thickness of the pigment is about 1/10 to about 1/20 of the longitudinal size of the pigment; and that the amount of the pigment used is about 0.1 to about 30 parts by weight per 100 parts by weight of the vehicle (as solids).

Inventors

  • 👤 Shizuo Miyazaki
  • 👤 Kazuyuki Kuwano
  • 👤 Norio Fujita

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-25 21:03
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/06; B05D5/067; B05D5/068

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 192 words
A metallic coating method comprising the steps of applying a color coating composition, applying a metallic coating composition containing a metallic pigment to the layer of the color coating composition and applying a clear coating composition to the layer of the metallic coating composition, the method being characterized in that the color coating composition is able to form a layer having a Munsell value of 0 to 6; that the metallic coating composition contains the metallic pigment and a vehicle as main components, the metallic pigment being iron oxide particles of hexagonal platelike shape which contain at least 80% by weight of α-iron oxide crystals; that about 90% by weight or more of the metallic pigment has a longitudinal size of about 30 µm or less and 40% by weight or more of the pigment has a longitudinal size of about 5 to about 15 µm; that the thickness of the pigment is about 1/10 to about 1/20 of the longitudinal size of the pigment; and that the amount of the pigment used is about 0.1 to about 30 parts by weight per 100 parts by weight of the vehicle (as solids).
Claim 2
Dependent Claim 192 words
A metallic coating method comprising the steps of applying a color coating composition, applying a metallic coating composition containing a metallic pigment to the layer of the color coating composition and applying a clear coating composition to the layer of the metallic coating composition, the method being characterized in that the color coating composition is able to form a layer having a Munsell value of 0 to 6; that the metallic coating composition contains the metallic pigment and a vehicle as main components, the metallic pigment being iron oxide particles of hexagonal platelike shape which contain at least 80% by weight of α-iron oxide crystals; that about 90% by weight or more of the metallic pigment has a longitudinal size of about 30 µm or less and 40% by weight or more of the pigment has a longitudinal size of about 5 to about 15 µm; that the thickness of the pigment is about 1/10 to about 1/20 of the longitudinal size of the pigment; and that the amount of the pigment used is about 0.1 to about 30 parts by weight per 100 parts by weight of the vehicle (as solids).
Claim 3
Dependent Claim 26 words
A coating method according to claim 1 wherein the color coating composition is able to give a layer having a Munsell value of 0.3 to 4.
Claim 4
Dependent Claim 24 words
A coating method according to claim 1 or 2, wherein the iron oxide particles contain 95% by weight or more of α-iron oxide crystals.
Claim 5
Dependent Claim 32 words
A coating method according to any one of claims 1 to 3, wherein 95% by weight or more of the metallic pigment has a longitudinal size of about 30 µm or less.
Claim 6
Dependent Claim 33 words
A coating method according to any one of claims 1 to 4, wherein 50% by weight or more of the metallic pigment has a longitudinal size of about 5 to about 15 µm.
Claim 7
Dependent Claim 32 words
A coating method according to any one of claims 1 to 5, wherein the thickness of the metallic pigment is about 1/10 to about 1/15 of the longitudinal size of the pigment.
Claim 8
Dependent Claim 38 words
A coating method according to any one of claims 1 to 6, wherein the amount of the metallic pigment is about 5 to about 20 parts by weight per 100 parts by weight of the vehicle (as solids).

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