JPS5728170A - Preparation of highly rigid corrosion-resistant coating material for blackboard - Google Patents
Preparation of highly rigid corrosion-resistant coating material for blackboardInfo
- Publication number
- JPS5728170A JPS5728170A JP10284180A JP10284180A JPS5728170A JP S5728170 A JPS5728170 A JP S5728170A JP 10284180 A JP10284180 A JP 10284180A JP 10284180 A JP10284180 A JP 10284180A JP S5728170 A JPS5728170 A JP S5728170A
- Authority
- JP
- Japan
- Prior art keywords
- black
- coating material
- oxide
- ultrarigid
- spouder
- 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
- Paints Or Removers (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
PURPOSE: To obtain the titled coating material without destroying the roughness of the coated surface even by the friction of high load for a long term, by crushing a black ultrarigid clay slate of specific chemical composition component, and using the resultant finely powdered spouder black hard stone as an extender pigment.
CONSTITUTION: A black ultrarigid clay slate containing chemical components of 53.54% sulfuric anhydride, 16.79% aluminum oxide, 7.23% ferric oxide, 8.63% calcium oxide, 3.12% magnesium oxide, etc. is crushed to give a spouder black hard stone of a fine powder having a particle size perferably ≥250 mesh. The resultant powder is used as an extender pigment, incorporated with a yellow pigment having the iron oxide component and phthalocyanine Blue as coloring pigments, and kneaded with a phthalic acid synthetic resin coating material in the presence of a mineral turpentine solvent and stirred.
EFFECT: The absence of the flattening causes no deterioration of the visual environment due to the reflective gloss, and the writing in white black is chear with a comfortable touch with chalk.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10284180A JPS5728170A (en) | 1980-07-26 | 1980-07-26 | Preparation of highly rigid corrosion-resistant coating material for blackboard |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10284180A JPS5728170A (en) | 1980-07-26 | 1980-07-26 | Preparation of highly rigid corrosion-resistant coating material for blackboard |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5728170A true JPS5728170A (en) | 1982-02-15 |
JPS6356270B2 JPS6356270B2 (en) | 1988-11-07 |
Family
ID=14338191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10284180A Granted JPS5728170A (en) | 1980-07-26 | 1980-07-26 | Preparation of highly rigid corrosion-resistant coating material for blackboard |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5728170A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002032976A3 (en) * | 2000-10-18 | 2002-09-19 | Ciba Sc Holding Ag | Low chroma, dark photo-curable compositions |
-
1980
- 1980-07-26 JP JP10284180A patent/JPS5728170A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002032976A3 (en) * | 2000-10-18 | 2002-09-19 | Ciba Sc Holding Ag | Low chroma, dark photo-curable compositions |
Also Published As
Publication number | Publication date |
---|---|
JPS6356270B2 (en) | 1988-11-07 |
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