Patent US4814208A successfully refreshed from Google Patents.
US4814208A
Expired / Lapsed
US
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Finish coating method
Assignee: Kansai Paint Co Ltd
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Filing: 1987-10-07
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Granted: 1989-03-21
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Expires: 2007-10-07
Abstract
Abstract Disclosed is a coating method comprising the steps of applying a color coating composition, applying a coating composition containing a pigment capable of producing a metallic effect to the layer of the color coating composition and applying a clear coating composition to the layer of the pigment-containing coating composition, characterized in that the color coating composition is able to form a layer having a Munsell value of 0 to 6; that the pigment-containing coating composition contains an iron oxide pigment and a vehicle as main components, the iron oxide pigment being iron oxide particles which contain at least 80% by weight of α-iron oxide crystals and which are each coated with titanium dioxide; that about 90% by weight or more of the iron oxide pigment has a longitudinal size of about 30 μm or less than 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 is about 0.1 to about 30 parts by weight per 100 parts by weight of the vehicle (as solids).
Inventors
- 👤 Shizuo Miyazaki
- 👤 Norio Fujita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:20
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0015; C09C1/0021; B; B05; B05D; B05D5/00; B05D5/06; B05D5/067; B05D5/068; C09C1/22; C09C1/24; C09C1/245; C09D; C09D5/00; C09D5/36; C01; C01P; C01P2004/00; C01P2004/20; C01P2004/51; C01P2004/80; C01P2004/82; C01P2004/84; C01P2004/86; C01P2006/00; C01P2006/60; C01P2006/65; C01P2006/66; C09C2200/00; C09C2200/10; C09C2200/1004; C09C2200/30; C09C2200/301; C09C2200/308
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
201 words
A coating method comprising the steps of applying a color coating composition to a substrate, applying a coating composition containing a pigment capable of producing a metallic effect to the layer of the color coating composition and applying a clear coating composition to the layer of the pigment-containing coating composition, characterized in that the color coating composition is able to form a layer having a Munsell value of 0 to 6; that the pigment-containing coating composition contains an iron oxide pigment and a vehicle as main components, the iron oxide pigment being iron oxide particles which contain at least 80% by weight of α-iron oxide crystals and which are each coated with titanium dioxide; that about 90% by weight or more of the iron oxide 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 is about 0.1 to about 30 parts by weight per 100 parts by weight of the vehicle (as solids).
Claim 2
Dependent Claim
201 words
A coating method comprising the steps of applying a color coating composition to a substrate, applying a coating composition containing a pigment capable of producing a metallic effect to the layer of the color coating composition and applying a clear coating composition to the layer of the pigment-containing coating composition, characterized in that the color coating composition is able to form a layer having a Munsell value of 0 to 6; that the pigment-containing coating composition contains an iron oxide pigment and a vehicle as main components, the iron oxide pigment being iron oxide particles which contain at least 80% by weight of α-iron oxide crystals and which are each coated with titanium dioxide; that about 90% by weight or more of the iron oxide 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 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 90% by weight or more of α-iron oxide crystals.
Claim 5
Dependent Claim
28 words
A coating method according to claim 1 wherein 95% by weight or more of the iron oxide pigment has a longitudinal size of about 30 μm or less.
Claim 6
Dependent Claim
29 words
A coating method according to claim 1 wherein 50% by weight or more of the iron oxide pigment has a longitudinal size of about 5 to about 15 μm.
Claim 7
Dependent Claim
28 words
A coating method according to claim 1 wherein the thickness of the iron oxide pigment is about 1/10 to about 1/15 of the longitudinal size of the pigment.
Claim 8
Dependent Claim
36 words
A coating method according to claim 1 wherein the amount of the titanium dioxide covering the iron oxide pigment is about 0.1 to about 30% by weight based on the weight of the iron oxide particles.
Claim 9
Dependent Claim
34 words
A coating method according to claim 1 wherein the amount of the iron oxide 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) | 1992-03-20 | 1992-09-19 | 1993-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-20 | 1996-09-19 | 1997-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-20 | 2000-09-19 | 2001-03-21 | $7700.00 | Window Closed / Lapsed |