JPS5737725A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5737725A
JPS5737725A JP11503480A JP11503480A JPS5737725A JP S5737725 A JPS5737725 A JP S5737725A JP 11503480 A JP11503480 A JP 11503480A JP 11503480 A JP11503480 A JP 11503480A JP S5737725 A JPS5737725 A JP S5737725A
Authority
JP
Japan
Prior art keywords
recording medium
magnetic recording
chain
silicone compound
magnetic layer
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
JP11503480A
Other languages
Japanese (ja)
Inventor
Takezo Shimizu
Satoru Yamaguchi
Shigeo Aoyama
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 JP11503480A priority Critical patent/JPS5737725A/en
Publication of JPS5737725A publication Critical patent/JPS5737725A/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 lubricity and wear resistance of a magnetic recording medium by making a magnetic layer contain a specific organic silicone compound as a lubricant. CONSTITUTION:A magnetic layer is made to contain a poly-ether-modified organic silicone compound which has a polyoxyalkylene chain with a fatty-acid residual group, superior in affinity with a binder, in a principal chain or in the pricipal chain and at both its terminals as shown by the right general formual [where R1 and R2 are -CH3- or -(CH2)p-(OCH2CH2)q-(OCH2CHR3)r-OOCR4, R3 and R3 are hydrocarbon groups of -H or C1-C2, and C1-C26, (p), and (q) and (r), (n1), (n2), and n1+n2 are 0-7, 0-50, 0-1,000, 1-500, and <=1,000].
JP11503480A 1980-08-20 1980-08-20 Magnetic recording medium Pending JPS5737725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11503480A JPS5737725A (en) 1980-08-20 1980-08-20 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11503480A JPS5737725A (en) 1980-08-20 1980-08-20 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5737725A true JPS5737725A (en) 1982-03-02

Family

ID=14652564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11503480A Pending JPS5737725A (en) 1980-08-20 1980-08-20 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5737725A (en)

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