JPS57198541A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57198541A
JPS57198541A JP56082649A JP8264981A JPS57198541A JP S57198541 A JPS57198541 A JP S57198541A JP 56082649 A JP56082649 A JP 56082649A JP 8264981 A JP8264981 A JP 8264981A JP S57198541 A JPS57198541 A JP S57198541A
Authority
JP
Japan
Prior art keywords
active agent
surface active
recording medium
magnetic recording
perfluoroalkyl
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
JP56082649A
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 JP56082649A priority Critical patent/JPS57198541A/en
Publication of JPS57198541A publication Critical patent/JPS57198541A/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
    • 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

Abstract

PURPOSE:To improve corrosion resistance, running characteristics, etc., by allowing the surface of a metallic ferromagnetic layer to adsorb a surface active agent which contains fluorine. CONSTITUTION:On a nonmagnetic substrate, a ferromagnetic thin film of iron, cobalt, nickel, or their alloy is provided by vapor deposition, sputtering, electroplating, etc. The surface is coated with a solution of a fluorine-containing surface active agent prepared by adding polyethylene oxides to ammonium salt of perfluoroalkyl carboxylic acids, ammonium salt of perfluoroalkyl sulfonic acids, and perfluoroalkyl groups to cause the chemical adsorption of said surface active agent to the surface of the magnetic thin film, thus obtaining a magnetic recording medium.
JP56082649A 1981-05-29 1981-05-29 Magnetic recording medium Pending JPS57198541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56082649A JPS57198541A (en) 1981-05-29 1981-05-29 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56082649A JPS57198541A (en) 1981-05-29 1981-05-29 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57198541A true JPS57198541A (en) 1982-12-06

Family

ID=13780271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56082649A Pending JPS57198541A (en) 1981-05-29 1981-05-29 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57198541A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107428A (en) * 1982-12-10 1984-06-21 Seiko Epson Corp Formation of lubricating layer for magnetic recording medium
EP0123854A2 (en) * 1983-04-29 1984-11-07 International Business Machines Corporation Process for chemically bonding lubricant to an information carrier
EP0131923A2 (en) * 1983-07-14 1985-01-23 Magnox Incorporated (DE) Coating compositions
JPS60125928A (en) * 1983-12-09 1985-07-05 Matsushita Electric Ind Co Ltd Magnetic recording medium
US4613520A (en) * 1983-07-14 1986-09-23 Hercules Incorporated Coating compositions
US4639815A (en) * 1983-04-28 1987-01-27 Fuji Photo Film Co., Ltd. Magnetic recording medium with chromiumiron protective layer
JPS6371923A (en) * 1986-09-13 1988-04-01 Sony Corp Magnetic recording medium
US4892789A (en) * 1984-12-25 1990-01-09 Tdk Corporation Magnetic recording medium
WO2015025875A1 (en) * 2013-08-21 2015-02-26 デクセリアルズ株式会社 Lubricant agent and magnetic recording medium

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107428A (en) * 1982-12-10 1984-06-21 Seiko Epson Corp Formation of lubricating layer for magnetic recording medium
JPH0430084B2 (en) * 1982-12-10 1992-05-20
US4639815A (en) * 1983-04-28 1987-01-27 Fuji Photo Film Co., Ltd. Magnetic recording medium with chromiumiron protective layer
EP0123854A2 (en) * 1983-04-29 1984-11-07 International Business Machines Corporation Process for chemically bonding lubricant to an information carrier
US4505990A (en) * 1983-07-14 1985-03-19 Hercules Incorporated Coating compositions
US4613520A (en) * 1983-07-14 1986-09-23 Hercules Incorporated Coating compositions
EP0131923A2 (en) * 1983-07-14 1985-01-23 Magnox Incorporated (DE) Coating compositions
JPS60125928A (en) * 1983-12-09 1985-07-05 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPH0547890B2 (en) * 1983-12-09 1993-07-20 Matsushita Electric Ind Co Ltd
US4892789A (en) * 1984-12-25 1990-01-09 Tdk Corporation Magnetic recording medium
JPS6371923A (en) * 1986-09-13 1988-04-01 Sony Corp Magnetic recording medium
WO2015025875A1 (en) * 2013-08-21 2015-02-26 デクセリアルズ株式会社 Lubricant agent and magnetic recording medium
JP2015040244A (en) * 2013-08-21 2015-03-02 デクセリアルズ株式会社 Lubricant and magnetic recording medium

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