JPS57152538A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57152538A
JPS57152538A JP3985181A JP3985181A JPS57152538A JP S57152538 A JPS57152538 A JP S57152538A JP 3985181 A JP3985181 A JP 3985181A JP 3985181 A JP3985181 A JP 3985181A JP S57152538 A JPS57152538 A JP S57152538A
Authority
JP
Japan
Prior art keywords
dispersant
lubricant
magnetic
recording medium
dialkyl
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
JP3985181A
Other languages
Japanese (ja)
Inventor
Takezo Shimizu
Fumio Togawa
Haruo Ando
Osamu Saito
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 Holdings 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 JP3985181A priority Critical patent/JPS57152538A/en
Publication of JPS57152538A publication Critical patent/JPS57152538A/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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/71—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the lubricant

Landscapes

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

Abstract

PURPOSE:To improve the durability and heat resistance of a magnetic layer without spoiling the dispersibility of magnetic powder, by adding liquid paraffin as a lubricant to magnetic paint which uses dialkyl sulfoccinite as a dispersant. CONSTITUTION:A magnetic layer which uses dialkyl sulfosuccinite as a dispersant for magnetic powder contains liquid parrafin as a lubricant. As said dialkyl sulfosuccinite as the dispersant, alkali metallic, salt, etc., is used. Said lubricant and dispersant are used favorably by 0.1-5pts.wt. for 100pts.wt. magnetic powder.
JP3985181A 1981-03-18 1981-03-18 Magnetic recording medium Pending JPS57152538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3985181A JPS57152538A (en) 1981-03-18 1981-03-18 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3985181A JPS57152538A (en) 1981-03-18 1981-03-18 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57152538A true JPS57152538A (en) 1982-09-20

Family

ID=12564462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3985181A Pending JPS57152538A (en) 1981-03-18 1981-03-18 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57152538A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01149219A (en) * 1987-10-31 1989-06-12 Basf Ag Magnetic recording carrier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01149219A (en) * 1987-10-31 1989-06-12 Basf Ag Magnetic recording carrier

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