JPS5728170A - Preparation of highly rigid corrosion-resistant coating material for blackboard - Google Patents

Preparation of highly rigid corrosion-resistant coating material for blackboard

Info

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
Application number
JP10284180A
Other languages
Japanese (ja)
Other versions
JPS6356270B2 (en
Inventor
Shiyouuemon Shiyouda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP10284180A priority Critical patent/JPS5728170A/en
Publication of JPS5728170A publication Critical patent/JPS5728170A/en
Publication of JPS6356270B2 publication Critical patent/JPS6356270B2/ja
Granted legal-status Critical Current

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
JP10284180A 1980-07-26 1980-07-26 Preparation of highly rigid corrosion-resistant coating material for blackboard Granted JPS5728170A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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