JPS5662904A - Metal magnetic powder and its treatment - Google Patents

Metal magnetic powder and its treatment

Info

Publication number
JPS5662904A
JPS5662904A JP13741779A JP13741779A JPS5662904A JP S5662904 A JPS5662904 A JP S5662904A JP 13741779 A JP13741779 A JP 13741779A JP 13741779 A JP13741779 A JP 13741779A JP S5662904 A JPS5662904 A JP S5662904A
Authority
JP
Japan
Prior art keywords
magnetic powder
metal magnetic
polyoxyalkylene
carboxylic acid
amine salt
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.)
Pending
Application number
JP13741779A
Other languages
Japanese (ja)
Inventor
Hiroshi Zaitsu
Nariyuki Hosoo
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP13741779A priority Critical patent/JPS5662904A/en
Publication of JPS5662904A publication Critical patent/JPS5662904A/en
Pending legal-status Critical Current

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  • Powder Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE: To improve oxidation resistance as well as dispersibility to magnetic paint by depositing amine salt of carboxylic acid contg. polyoxyalkylene on the surfaces of metal magnetic powder.
CONSTITUTION: Metal magnetic powder is added into an organic solvent contg. amine salt of carboxylic acid contg. polyoxyalkylene and these are mixed under stirring. Thence, this magnetic powder is filtered and dried to allow the amine salt of the carboxylic acid contg. polyoxyalkylene on the surfaces of the metal magnetic powder. These make it possible to improve the oxidation resistance of the metal magnetic powder as well as its dispersibility and filling characteristic to magnetic paint.
COPYRIGHT: (C)1981,JPO&Japio
JP13741779A 1979-10-23 1979-10-23 Metal magnetic powder and its treatment Pending JPS5662904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13741779A JPS5662904A (en) 1979-10-23 1979-10-23 Metal magnetic powder and its treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13741779A JPS5662904A (en) 1979-10-23 1979-10-23 Metal magnetic powder and its treatment

Publications (1)

Publication Number Publication Date
JPS5662904A true JPS5662904A (en) 1981-05-29

Family

ID=15198135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13741779A Pending JPS5662904A (en) 1979-10-23 1979-10-23 Metal magnetic powder and its treatment

Country Status (1)

Country Link
JP (1) JPS5662904A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62150529A (en) * 1985-12-25 1987-07-04 Toho Chem Ind Co Ltd Method for manufacturing metal magnetic powder for magnetic recording
US5091269A (en) * 1989-12-14 1992-02-25 Sony Corporation Magnetic recording medium lubricant consisting of an amine salt of carboxylic acid, an amine salt of perfluoroalkyl carboxylic acid or an fluoro amine salt of perfluoro carboxylic acid
JP2009001907A (en) * 1996-03-12 2009-01-08 Berhan Tecle Method for isolating ultrafine and fine particles and resulting particles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62150529A (en) * 1985-12-25 1987-07-04 Toho Chem Ind Co Ltd Method for manufacturing metal magnetic powder for magnetic recording
US5091269A (en) * 1989-12-14 1992-02-25 Sony Corporation Magnetic recording medium lubricant consisting of an amine salt of carboxylic acid, an amine salt of perfluoroalkyl carboxylic acid or an fluoro amine salt of perfluoro carboxylic acid
JP2009001907A (en) * 1996-03-12 2009-01-08 Berhan Tecle Method for isolating ultrafine and fine particles and resulting particles

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