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JPS57154648A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57154648A
JPS57154648A JP56041318A JP4131881A JPS57154648A JP S57154648 A JPS57154648 A JP S57154648A JP 56041318 A JP56041318 A JP 56041318A JP 4131881 A JP4131881 A JP 4131881A JP S57154648 A JPS57154648 A JP S57154648A
Authority
JP
Japan
Prior art keywords
recording medium
magnetic recording
fluororesin
fine powder
phosphoric ester
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
JP56041318A
Other languages
Japanese (ja)
Inventor
Akito Sakamoto
Kunio Mizushima
Taku Yamase
Masaya Funabashi
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 JP56041318A priority Critical patent/JPS57154648A/en
Publication of JPS57154648A publication Critical patent/JPS57154648A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
    • G11B5/7253—Fluorocarbon lubricant

Landscapes

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

Abstract

PURPOSE:To prevent the durability and antistatic effect of the entitled magnetic recording medium by forming a protective layer containing the fine powder of fluororesin and perfluoroalkyl phosphoric ester on a magnetic layer. CONSTITUTION:A protective layer is formed by dispersing the fine powder of lubricating fluororesin such as resin of tetrafluoroethylene, hexafluoropropylene or trichlorofluoroethylene together with perfluoroalkyl phosphoric ester with surface active and lubricating properties and electric conductivity into an appropriate solvent and applying the dispersoid on a magnetic layer.
JP56041318A 1981-03-20 1981-03-20 Magnetic recording medium Pending JPS57154648A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56041318A JPS57154648A (en) 1981-03-20 1981-03-20 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56041318A JPS57154648A (en) 1981-03-20 1981-03-20 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57154648A true JPS57154648A (en) 1982-09-24

Family

ID=12605157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56041318A Pending JPS57154648A (en) 1981-03-20 1981-03-20 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57154648A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0140582A2 (en) * 1983-10-03 1985-05-08 Minnesota Mining And Manufacturing Company Magnetic recording medium having a perfluoropolyether polymer protective coating
JPS60226021A (en) * 1984-04-25 1985-11-11 Atsushi Kitamura Magnetic recording medium
JPS61104320A (en) * 1984-10-22 1986-05-22 Nec Corp Magnetic storage medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0140582A2 (en) * 1983-10-03 1985-05-08 Minnesota Mining And Manufacturing Company Magnetic recording medium having a perfluoropolyether polymer protective coating
JPS60226021A (en) * 1984-04-25 1985-11-11 Atsushi Kitamura Magnetic recording medium
JPS61104320A (en) * 1984-10-22 1986-05-22 Nec Corp Magnetic storage medium

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