US4130431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal surface treatment liquid and rust preventive paint
Assignee: Kansai Paint Co Ltd
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Filing: 1977-07-05
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Granted: 1978-12-19
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Expires: 1997-07-05
Abstract
Abstract According to one of the two aspects of the present invention, a metal surface treatment liquid having pH of less than 6 and containing oxytitanic ion and/or peroxytitanic ion therein is provided. The second aspect of the present invention is to provide a rust preventive paint, in which oxytitanic ion and/or peroxytitanic ion is(are) contained.
Inventors
- 👤 Hideo Kogure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:15
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/48; C09; C09D; C09D5/00; C09D5/08; C09D5/082; C09D5/084
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
75 words
In a rust preventive paint comprising a vehicle containing a solvent and at least one member of the group consisting of butyral resin, alkyd resin, phenoxy resin, polybutadiene, phenolic resin, epoxy resin, acrylic resin and hydrolyzed ethyl silicate, and a corrosion inhibiting agent; the improvement comprising, as said agent, 0.0025 to 2.5 ion mol of oxytitanic ion, peroxytitanic ion or mixtures thereof per 1000g of paint, said paint having a pH of less than 6.
Claim 2
Dependent Claim
75 words
In a rust preventive paint comprising a vehicle containing a solvent and at least one member of the group consisting of butyral resin, alkyd resin, phenoxy resin, polybutadiene, phenolic resin, epoxy resin, acrylic resin and hydrolyzed ethyl silicate, and a corrosion inhibiting agent; the improvement comprising, as said agent, 0.0025 to 2.5 ion mol of oxytitanic ion, peroxytitanic ion or mixtures thereof per 1000g of paint, said paint having a pH of less than 6.
Claim 3
Dependent Claim
36 words
A metal surface treatment paint as set forth in claim 1, wherein the oxytitanic ion or peroxytitanic ion is obtained in such a manner that titanium compound or metallic titanium is dissolved in inorganic acid solution.
Claim 4
Dependent Claim
25 words
A metal surface treatment paint as set forth in claim 2, wherein the titanium compound or metallic titanium is oxidized by the addition of peroxide.
Claim 5
Dependent Claim
18 words
A metal surface treatment paint as set forth in claim 3, wherein the said peroxide is hydrogen peroxide.
Claim 6
Dependent Claim
24 words
A method of preventing corrosion of a metallic surface which comprises contacting said metal surface with the metal surface treatment paint of claim 1.
Claim 7
Dependent Claim
19 words
The method of claim 5 wherein said treatment paint has a pH at a range from 0 to 3.5.
References Cited (Backward Citations)
US2294571A
Cited
US4017334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-18 | 1982-06-19 | 1982-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-18 | 1986-06-19 | 1986-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-18 | 1990-06-19 | 1990-12-19 | $7700.00 | Window Closed / Lapsed |