JPS57200940A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57200940A
JPS57200940A JP56084684A JP8468481A JPS57200940A JP S57200940 A JPS57200940 A JP S57200940A JP 56084684 A JP56084684 A JP 56084684A JP 8468481 A JP8468481 A JP 8468481A JP S57200940 A JPS57200940 A JP S57200940A
Authority
JP
Japan
Prior art keywords
salt
magnetic recording
sulfonic acid
thin film
cobalt
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
JP56084684A
Other languages
Japanese (ja)
Inventor
Masatoshi Takao
Koichi Shinohara
Eiichi Hirota
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56084684A priority Critical patent/JPS57200940A/en
Publication of JPS57200940A publication Critical patent/JPS57200940A/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
    • G11B5/722—Protective coatings, e.g. anti-static or antifriction containing an anticorrosive material

Landscapes

  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To improve corrosion resistance and running characteristics by adsorbing metallic salt of perfluoroalkyl sulfonic acid on a thin film of a ferromagnetic material for magnetic recording. CONSTITUTION:A thin film medium for magnetic recording made of ferromagnetic metal by vacuum deposition, etc., is coated with or dipped in a solution or dispersed liquid of metallic salt such as manganese, chromium, copper, iron, cobalt, nickel, etc., of perfluoroalkyl sulfonic acid expressed by CnF2n+1SO3H (where n is >=1), thus performing adsorbing reaction. As the said metallic salt, trifluoromethane sulfonic acid nickel salt, or pentadecafluorooctasulfonic acid nickel salt, cobalt salt, or iron salt is usable.
JP56084684A 1981-06-01 1981-06-01 Magnetic recording medium Pending JPS57200940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56084684A JPS57200940A (en) 1981-06-01 1981-06-01 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56084684A JPS57200940A (en) 1981-06-01 1981-06-01 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57200940A true JPS57200940A (en) 1982-12-09

Family

ID=13837508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56084684A Pending JPS57200940A (en) 1981-06-01 1981-06-01 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57200940A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829147A (en) * 1981-08-15 1983-02-21 Sony Corp Magnetic recording medium
JPS59107428A (en) * 1982-12-10 1984-06-21 Seiko Epson Corp Formation of lubricating layer for magnetic recording medium
US4505990A (en) * 1983-07-14 1985-03-19 Hercules Incorporated Coating compositions
US4613520A (en) * 1983-07-14 1986-09-23 Hercules Incorporated Coating compositions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829147A (en) * 1981-08-15 1983-02-21 Sony Corp Magnetic recording medium
JPS59107428A (en) * 1982-12-10 1984-06-21 Seiko Epson Corp Formation of lubricating layer for magnetic recording medium
US4505990A (en) * 1983-07-14 1985-03-19 Hercules Incorporated Coating compositions
US4613520A (en) * 1983-07-14 1986-09-23 Hercules Incorporated Coating compositions

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