JPS5718764A - Covering pigment useful as rust inhibitor and its preparation - Google Patents
Covering pigment useful as rust inhibitor and its preparationInfo
- Publication number
- JPS5718764A JPS5718764A JP9261780A JP9261780A JPS5718764A JP S5718764 A JPS5718764 A JP S5718764A JP 9261780 A JP9261780 A JP 9261780A JP 9261780 A JP9261780 A JP 9261780A JP S5718764 A JPS5718764 A JP S5718764A
- Authority
- JP
- Japan
- Prior art keywords
- covering
- electrode
- suspension
- covering layer
- pigment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
Abstract
PURPOSE: The titled covering pigment having improved rust preventive power, adhesivity to film, and coating compound stability, obtained by forming a covering layer with a specific molar composition based on oxide on the surface of inorganic nucleus particles, comprising an oxy acid in the form of (hypo)phosphite in the covering layer.
CONSTITUTION: The surface of inorganic nucleus particles is treated with an aqueous solution or aqueous sol of readily reactive titanium hydrate, and with an aqueous solution of water-soluble metal (hypo)phosphite, so that a covering layer having a molar composition shown by the formula (M is 2W3 valent metal; m is valence of M; a is 0.4W4; b is 0.05W3) based on oxide is formed on the surface of the particles, to give the desired covering pigment. A mixture of a vinyl resin and this covering pigment in a weight ratio 1:1 is suspended in a medium consisting of isopropyl alcohol and water in a weight ratio 24:1 to form 15wt% suspension. The suspension exhibits an oxidation, -reduction voltage ≤400mV 40min after the formation of the suspension, when an glass electrode is used as a reference electrode and a platinum electrode as an electrode to be tested.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55092617A JPS5836023B2 (en) | 1980-07-09 | 1980-07-09 | Manufacturing method of coated pigment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55092617A JPS5836023B2 (en) | 1980-07-09 | 1980-07-09 | Manufacturing method of coated pigment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5718764A true JPS5718764A (en) | 1982-01-30 |
| JPS5836023B2 JPS5836023B2 (en) | 1983-08-06 |
Family
ID=14059388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55092617A Expired JPS5836023B2 (en) | 1980-07-09 | 1980-07-09 | Manufacturing method of coated pigment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5836023B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58219273A (en) * | 1982-06-01 | 1983-12-20 | インタ−ナシヨナル・ペイント・パブリツク・リミテイド・カンパニ− | Antirust paint |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5431765A (en) * | 1977-08-15 | 1979-03-08 | Sharp Corp | Liquid crystal display device |
| JPS5512516A (en) * | 1978-07-07 | 1980-01-29 | Sharp Corp | Head access system in video reproducing unit |
-
1980
- 1980-07-09 JP JP55092617A patent/JPS5836023B2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5431765A (en) * | 1977-08-15 | 1979-03-08 | Sharp Corp | Liquid crystal display device |
| JPS5512516A (en) * | 1978-07-07 | 1980-01-29 | Sharp Corp | Head access system in video reproducing unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58219273A (en) * | 1982-06-01 | 1983-12-20 | インタ−ナシヨナル・ペイント・パブリツク・リミテイド・カンパニ− | Antirust paint |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5836023B2 (en) | 1983-08-06 |
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