JPS563431A - Magnetic recording medium and its manufacture - Google Patents

Magnetic recording medium and its manufacture

Info

Publication number
JPS563431A
JPS563431A JP7557879A JP7557879A JPS563431A JP S563431 A JPS563431 A JP S563431A JP 7557879 A JP7557879 A JP 7557879A JP 7557879 A JP7557879 A JP 7557879A JP S563431 A JPS563431 A JP S563431A
Authority
JP
Japan
Prior art keywords
paraffin
recording medium
magnetic
magnetic recording
durability
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
JP7557879A
Other languages
Japanese (ja)
Inventor
Mitsuru Hamada
Shoji Ishida
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7557879A priority Critical patent/JPS563431A/en
Publication of JPS563431A publication Critical patent/JPS563431A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain a magnetic recording medium which excels in the surface lubricating properties and the durability, by coating with heat treatment the magnetic coating material containing a specific amount of paraffin and a proper amount of peroxide to the solid component of the magnetic powder, the binder or the like.
CONSTITUTION: The magnetic coating material, composed by adding the 5W15wt% paraffin (preferably the melting point of 50°C or less and the solid state at room temperature) plus the organic peroxide of a proper amount to the solid component of the magnetic powder, the synthetic resin for binder and the like is coated on the Al disk type supporter. Then the heat treatment is given about 15min and at about 175°C and then about 30min and at about 230°C respectively, and as a result the coated film is cured. In that case, the paraffin is crosslinked. After this, the coated film is polished up to the prescribed thickness. Thus the paraffin decomposition is reduced to obtain a magnetic recording medium excelling in the durability and the surface lubricating properties.
COPYRIGHT: (C)1981,JPO&Japio
JP7557879A 1979-06-18 1979-06-18 Magnetic recording medium and its manufacture Pending JPS563431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7557879A JPS563431A (en) 1979-06-18 1979-06-18 Magnetic recording medium and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7557879A JPS563431A (en) 1979-06-18 1979-06-18 Magnetic recording medium and its manufacture

Publications (1)

Publication Number Publication Date
JPS563431A true JPS563431A (en) 1981-01-14

Family

ID=13580207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7557879A Pending JPS563431A (en) 1979-06-18 1979-06-18 Magnetic recording medium and its manufacture

Country Status (1)

Country Link
JP (1) JPS563431A (en)

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