US5112403A
Expired / Lapsed
US
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Coating composition
Assignee: Dainichiseika Color and Chemicals Mfg Co Ltd
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Filing: 1991-09-11
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Granted: 1992-05-12
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Expires: 2011-09-11
Abstract
Abstract Disclosed herein is a coating composition comprising plate-like iron oxide particles having an average particle diameter of 0.5 to 5.0 μm, a lamellar thickness of 50 to 500Å and a plate ratio (the ratio of the average particle diameter to the lamellar thickness) of 50:1 to 500:1, at least one pigment selected from the group consisting of a coloring pigment, a mica pigment and a metal powder pigment, a film-forming polymer, and an organic solvent.
Inventors
- 👤 Ken Okura
- 👤 Satoru Matsuzaki
- 👤 Tsutomu Katamoto
- 👤 Nanao Horiishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:47
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/22; C09C1/24; C09C1/245; C09D; C09D7/00; C09D7/40; C09D7/60; C09D7/61; C09D7/66; C09D7/68; C09D7/69; C09D7/70; C01; C01P; C01P2002/00; C01P2002/70; C01P2004/00; C01P2004/01; C01P2004/03; C01P2004/20; C01P2004/54; C01P2004/60; C01P2004/61; C01P2004/62; C01P2006/00; C01P2006/12; C01P2006/60; C01P2006/63; C01P2006/64; C01P2006/65; C01P2006/66; C01P2006/80; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
73 words
A coating composition comprising plate-like iron oxide particles having an average particle diameter of 0.5 to 5.0 μm, a lamellar thickness of 50 to 500 Å and a plate ratio (the ratio of the average particle diameter to the lamellar thickness) of 50:1 to 500:1, at least one pigment selected from the group consisting of a coloring pigment, a mica pigment and a metal powder pigment, a film-forming polymer, and an organic solvent.
Claim 2
Dependent Claim
73 words
A coating composition comprising plate-like iron oxide particles having an average particle diameter of 0.5 to 5.0 μm, a lamellar thickness of 50 to 500 Å and a plate ratio (the ratio of the average particle diameter to the lamellar thickness) of 50:1 to 500:1, at least one pigment selected from the group consisting of a coloring pigment, a mica pigment and a metal powder pigment, a film-forming polymer, and an organic solvent.
Claim 3
Dependent Claim
31 words
A coating composition according to claim 1, wherein the amount of said film-forming polymer is 20 to 60 parts by weight based on 100 parts by weight of said coating composition.
Claim 4
Dependent Claim
31 words
A coating composition according to claim 1, wherein the amount of said organic solvent is 10 to 90 parts by weight based on 100 parts by weight of said coating composition.
Claim 5
Dependent Claim
33 words
A coating composition according to claim 1, wherein the amount of said plate-like iron oxide particles is 0.02 to 90 parts by weight based on 100 parts by weight of said coating composition.
Claim 6
Dependent Claim
49 words
A coating composition according to claim 1, wherein the amount of the pigment is 0.1 to 90 parts by weight based on 100 parts by weight of said coating composition and 0.1 to 2,000 parts by weight based on 100 parts by weight of said plate-like iron oxide particles.
Claim 7
Dependent Claim
32 words
A coating composition according to claim 5, wherein an amount of the coloring pigment is not more than 60 parts by weight based on 100 parts by weight of said coating composition.
Claim 8
Dependent Claim
32 words
A coating composition according to claim 5, wherein the amount of the mica pigment is not more than 30 parts by weight based on 100 parts by weight of said coating composition.
Claim 9
Dependent Claim
33 words
A coating composition according to claim 5, wherein the amount of the metal powder pigment is not more than 30 parts by weight based on 100 parts by weight of said coating composition.
Claim 10
Dependent Claim
54 words
A coating composition according to claim 1, wherein said plate-like iron oxide particles are plate-like hematite particles having an average particle diameter of 0.5 to 5.0 μm, a lamellar thickness of 50 to 500 Å and a plate ratio (the ratio of the average particle diameter to the lamellar thickness) of 50:1 to 500:1.
Claim 11
Dependent Claim
54 words
A coating composition according to claim 1, wherein said plate-like iron oxide particles are plate-like magnetite particles having an average particle diameter of 0.5 to 5.0 μm, a lamellar thickness of 50 to 500 Å and a plate ratio (the ratio of the average particle diameter to the lamellar thickness) of 50:1 to 500:1.
Claim 12
Dependent Claim
54 words
A coating composition according to claim 1, wherein said plate-like iron oxide particles are plate-like maghemite particles having an average particle diameter of 0.5 to 5.0 μm, a lamellar thickness of 50 to 500 Å and a plate ratio (the ratio of the average particle diameter to the lamellar thickness) of 50:1 to 500:1.
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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) | 1995-05-12 | 1995-11-11 | 1996-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-12 | 1999-11-11 | 2000-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-12 | 2003-11-11 | 2004-05-12 | $7700.00 | Window Closed / Lapsed |