Patent US4950507A successfully refreshed from Google Patents.
US4950507A
Expired / Lapsed
US
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Method for applying a coating composition having a sparkling luster containing FeO3 particles of hexagonal plate-like shape
Assignee: Kansai Paint Co Ltd
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Filing: 1988-12-01
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Granted: 1990-08-21
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Expires: 2008-12-01
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
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:43
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/06; B05D5/067; B05D5/068
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
194 words
A coating method comprising the steps of applying a color coating composition to a substrate, 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 3-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
194 words
A coating method comprising the steps of applying a color coating composition to a substrate, 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 3-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
22 words
A coating method according to claim 1 wherein the iron oxide particles contain 95% by weight or more of α-iron oxide crystals.
Claim 5
Dependent Claim
27 words
A coating method according to claim 1 wherein 95% by weight or more of the metallic pigment has a longitudinal size of about 30 μm or less.
Claim 6
Dependent Claim
28 words
A coating method according to claim 1 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
27 words
A coating method according to claim 1 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
33 words
A coating method according to claim 1 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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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |