JPS55147570A - Magnetic paint - Google Patents

Magnetic paint

Info

Publication number
JPS55147570A
JPS55147570A JP5475879A JP5475879A JPS55147570A JP S55147570 A JPS55147570 A JP S55147570A JP 5475879 A JP5475879 A JP 5475879A JP 5475879 A JP5475879 A JP 5475879A JP S55147570 A JPS55147570 A JP S55147570A
Authority
JP
Japan
Prior art keywords
mixt
added
contg
binder
solvent
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
JP5475879A
Other languages
Japanese (ja)
Other versions
JPS6352069B2 (en
Inventor
Tsunehide Naruse
Noboru Takahashi
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP5475879A priority Critical patent/JPS55147570A/en
Publication of JPS55147570A publication Critical patent/JPS55147570A/en
Publication of JPS6352069B2 publication Critical patent/JPS6352069B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To provide magnetic paint which excels in coercive force, max. magnetic flux density, angular ratio and gelation-preventing properties, by a method wherein a phosphate, ester is added before or after necessary additives such as a binder are added to a mixt. of a solvent and a magnetic material.
CONSTITUTION: Additives such as a binder (e.g, vinyl alcohol-contg. vinyl chloride- vinyl acetate copolymer), a hardener (e.g. polyisocyanate) etc. are added to a mixt. of powder of magnetic material such as Co-contg. r-Fe2O3 or Co-contg. Fe3O4 and a solvent such as methyl ethyl ketone, toluene, or methyl isobutyl ketone. Then a phosphate ester such as polyoxyethylenealkylallylether mono- or diester of phosphoric acid is added to the mixt. Alternatively, the phosphate ester is dispersed in the mixt. of the solvent and the magnetic material, and then the additives such as the binder and the hardener are added to the mixt. to obtain the desired magnetic paint.
COPYRIGHT: (C)1980,JPO&Japio
JP5475879A 1979-05-07 1979-05-07 Magnetic paint Granted JPS55147570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5475879A JPS55147570A (en) 1979-05-07 1979-05-07 Magnetic paint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5475879A JPS55147570A (en) 1979-05-07 1979-05-07 Magnetic paint

Publications (2)

Publication Number Publication Date
JPS55147570A true JPS55147570A (en) 1980-11-17
JPS6352069B2 JPS6352069B2 (en) 1988-10-17

Family

ID=12979663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5475879A Granted JPS55147570A (en) 1979-05-07 1979-05-07 Magnetic paint

Country Status (1)

Country Link
JP (1) JPS55147570A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5740743A (en) * 1980-08-23 1982-03-06 Sony Corp Magnetic recording medium
JPS5792422A (en) * 1980-11-25 1982-06-09 Sony Corp Magnetic recording medium
JPS62159336A (en) * 1986-01-07 1987-07-15 Konishiroku Photo Ind Co Ltd Magnetic recording medium
CN104130609A (en) * 2014-08-20 2014-11-05 姜云华 Magnetic coating

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5740743A (en) * 1980-08-23 1982-03-06 Sony Corp Magnetic recording medium
JPS6346489B2 (en) * 1980-08-23 1988-09-16 Sony Corp
JPS5792422A (en) * 1980-11-25 1982-06-09 Sony Corp Magnetic recording medium
JPS6346886B2 (en) * 1980-11-25 1988-09-19 Sony Corp
JPS62159336A (en) * 1986-01-07 1987-07-15 Konishiroku Photo Ind Co Ltd Magnetic recording medium
CN104130609A (en) * 2014-08-20 2014-11-05 姜云华 Magnetic coating

Also Published As

Publication number Publication date
JPS6352069B2 (en) 1988-10-17

Similar Documents

Publication Publication Date Title
JPS57133521A (en) Magnetic recording medium
JPS5744227A (en) Magnetic recording medium
JPS5658135A (en) Magnetic recording medium
JPS55147570A (en) Magnetic paint
JPS5430002A (en) Magnetic recording medium using ffrromagnetic metal powders
CA2063150A1 (en) Magnetic paint material and process for producing the same
JPS5661101A (en) Magnetic recording medium
GB1100610A (en) Magnetic recording medium and method of making same
JPS55151069A (en) Magnetic paint
JPS57135428A (en) Magnetic recording medium
JPS5671822A (en) Magnetic recording medium
JPS5649768A (en) Magnetic ink with excellent magnetic characteristics
JPS55142064A (en) Preparation of magnetic coating material
JPS55125169A (en) Production of magnetic coating material magnetic recording medium
JPS57158028A (en) High density magnetic recording medium
JPS57158027A (en) High density magnetic recording medium
JPS55147571A (en) Production of magnetic paint
JPS5746324A (en) Magnetic recording medium
JPS5643371A (en) Magnetic paint composition
JPS55151068A (en) Magnetic paint
JPS53115696A (en) Method for producing iron oxide powder
JPS5613522A (en) Magnetic recording medium
JPS5539655A (en) Treating method of magnetic powder
JPS5588307A (en) Magnetic recording medium
JPS6442104A (en) Magnetic powder for magnetic recording