US4842645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rust-proofing agent, rust-proofing coating composition and coating method for preventing or inhibiting corrosion of metallic/surface
Assignee: Kyowa Chemical Industry Co Ltd
•
Filing: 1988-05-02
•
Granted: 1989-06-27
•
Expires: 2008-05-02
Abstract
Abstract A rust-proofing agent containing as an active ingredient an oxide solid solution represented by formula (1) [(Zn).sub.1-y (Mg).sub.y ].sub.1-x Al.sub.x O.sub.1+x/2 (1) wherein x denotes a positive number satisfying 0.1<x<0.6 and y denotes a positive number satisying 0<y<1, a rust-proofing coating composition containing said rust-proofing agent and a coating method for preventing or inhibiting corrosion of a metallic surface.
Inventors
- 👤 Shigeo Miyata
- 👤 Hideo Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:22
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C09D5/082; C09D5/084
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
39 words
A rust-proofing agent containing as an active ingredient an oxide solid solution represented by formula (1) [(Zn).sub.1-y (Mg).sub.y ].sub.1-x Al.sub.x O.sub.1+x/2 ( 1) wherein x denotes a positive number satisfying 0.1<x<0.6 and y denotes a positive number satisfying 0<y<1.
Claim 2
Dependent Claim
39 words
A rust-proofing agent containing as an active ingredient an oxide solid solution represented by formula (1) [(Zn).sub.1-y (Mg).sub.y ].sub.1-x Al.sub.x O.sub.1+x/2 ( 1) wherein x denotes a positive number satisfying 0.1<x<0.6 and y denotes a positive number satisfying 0<y<1.
Claim 3
Dependent Claim
14 words
The rust-proofing agent of claim 1 wherein x is a positive number satisfying 0.2≦x≦0.5.
Claim 4
Dependent Claim
14 words
The rust-proofing agent of claim 1 wherein x is a positive number satisfying 0.25≦x≦0.35.
Claim 5
Dependent Claim
14 words
The rust-proofing agent of claim 1 wherein y is a positive number satisfying 0.5≦y≦0.8.
Claim 6
Dependent Claim
14 words
The rust-proofing agent of claim 1 wherein y is a positive number satisfying 0.6≦y≦0.8.
Claim 7
Dependent Claim
24 words
The rust-proofing agent of claim 1 wherein an average secondary particle diameter of the oxide solid solution is not more than about 5 micrometers.
Claim 8
Dependent Claim
24 words
The rust-proofing agent of claim 1 wherein the average secondary particle diameter of the oxide solid solution is not more than about 2 micrometers.
Claim 9
Dependent Claim
24 words
The rust-proofing agent of claim 1 wherein the average secondary particle diameter of the oxide solid solution is not more than about 1 micrometer.
Claim 10
Dependent Claim
41 words
A rust-proofing coating composition containing (a) a coating and (b) an oxide solid solution represented by formula (1) [(Zn).sub.1-y (Mg).sub.y ].sub.1-x Al.sub.x O.sub.1+x/2 ( 1) wherein x denotes a positive number satisfying 0.1<x<0.6 and y denotes a positive number satisfying 0<y<1.
Claim 11
Dependent Claim
41 words
A rust-proofing coating composition containing (a) a coating and (b) an oxide solid solution represented by formula (1) [(Zn).sub.1-y (Mg).sub.y ].sub.1-x Al.sub.x O.sub.1+x/2 ( 1) wherein x denotes a positive number satisfying 0.1<x<0.6 and y denotes a positive number satisfying 0<y<1.
Claim 12
Dependent Claim
15 words
The rust-proofing coating composition of claim 9 wherein x is a positive number satisfying 0.2≦x≦0.5.
Claim 13
Dependent Claim
15 words
The rust-proofing coating composition of claim 9 wherein x is a positive number satisfying 0.25≦x≦0.35.
Claim 14
Dependent Claim
15 words
The rust-proofing coating composition of claim 9 wherein y is a positive number satisfying 0.5≦y≦0.8.
Claim 15
Dependent Claim
15 words
The rust-proofing coating composition of claim 9 wherein y is a positive number satisfying 0.6≦y≦0.8.
Claim 16
Dependent Claim
25 words
The rust-proofing coating composition of claim 9 wherein an average secondary particle diameter of the oxide solid solution is not more than about 5 micrometers.
Claim 17
Dependent Claim
25 words
The rust-proofing coating composition of claim 9 wherein the average secondary particle diameter of the oxide solid solution is not more than about 2 micrometers.
Claim 18
Dependent Claim
25 words
The rust-proofing coating composition of claim 9 wherein the average secondary particle diameter of the oxide solid solution is not more than about 1 micrometer.
Claim 19
Dependent Claim
55 words
A coating method for preventing or inhibiting corrosion of a metallic surface which comprises coating the metallic surface with a rust-proofing coating composition containing an oxide solid solution represented by formula (1) [(Zn).sub.1-y (Mg).sub.y ].sub.1-x Al.sub.x O.sub.1+x/2 ( 1) wherein x denotes a positive number satisfying 0.1<x<0.6 and y denotes a positive number satisfying 0<y<1.
Claim 20
Dependent Claim
55 words
A coating method for preventing or inhibiting corrosion of a metallic surface which comprises coating the metallic surface with a rust-proofing coating composition containing an oxide solid solution represented by formula (1) [(Zn).sub.1-y (Mg).sub.y ].sub.1-x Al.sub.x O.sub.1+x/2 ( 1) wherein x denotes a positive number satisfying 0.1<x<0.6 and y denotes a positive number satisfying 0<y<1.
References Cited (Backward Citations)
US3241983A
Cited
US3583887A
Cited
US3672822A
Cited
US4026710A
Cited
US4352899A
Cited
US4651916A
Cited
US4705703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-26 | 1992-12-26 | 1993-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-26 | 1996-12-26 | 1997-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-26 | 2000-12-26 | 2001-06-27 | $7700.00 | Window Closed / Lapsed |