JPS6457418A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS6457418A
JPS6457418A JP21391787A JP21391787A JPS6457418A JP S6457418 A JPS6457418 A JP S6457418A JP 21391787 A JP21391787 A JP 21391787A JP 21391787 A JP21391787 A JP 21391787A JP S6457418 A JPS6457418 A JP S6457418A
Authority
JP
Japan
Prior art keywords
group
magnetic powder
recording medium
magnetic recording
binder
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
JP21391787A
Other languages
Japanese (ja)
Inventor
Masae Takano
Takahiro Miyazaki
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP21391787A priority Critical patent/JPS6457418A/en
Publication of JPS6457418A publication Critical patent/JPS6457418A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To improve the dispersibility of magnetic powder by using a vinylidene chloride copolymer having a -COOM group and at least one among -SO3M group, -OSO3M group and -PO(OM')2 group in the molecule as a binder. CONSTITUTION:The vinylidene chloride copolymer which is incorporated with the -COOM group and has at least one kind among the -SO3M group, -OSO3M group and -PO(OM')2 group (M is hydrogen or alkali metal; M' is any of hydrogen, alkali metal or hydrocarbon group) is incorporated into the binder. The affinity to the magnetic powder is thereby increased and the good dispersibility is obtd. even if the ultrafinely ground magnetic powder or the magnetic powder having a large magnetization quantity is used.
JP21391787A 1987-08-27 1987-08-27 Magnetic recording medium Pending JPS6457418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21391787A JPS6457418A (en) 1987-08-27 1987-08-27 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21391787A JPS6457418A (en) 1987-08-27 1987-08-27 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS6457418A true JPS6457418A (en) 1989-03-03

Family

ID=16647178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21391787A Pending JPS6457418A (en) 1987-08-27 1987-08-27 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS6457418A (en)

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