JPS5737736A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5737736A
JPS5737736A JP11504580A JP11504580A JPS5737736A JP S5737736 A JPS5737736 A JP S5737736A JP 11504580 A JP11504580 A JP 11504580A JP 11504580 A JP11504580 A JP 11504580A JP S5737736 A JPS5737736 A JP S5737736A
Authority
JP
Japan
Prior art keywords
group
recording medium
magnetic recording
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
JP11504580A
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 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 JP11504580A priority Critical patent/JPS5737736A/en
Publication of JPS5737736A publication Critical patent/JPS5737736A/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 an organic silicone compound having a modified group with a polarity group and one without any polarity group in a principal chain shown by the right general formula. In the formula, X1 is a -ROH, -RCOOH, -RNH2, or -R- epoxy group and X2 is -OR, -OOR, -OOCRCm F2m+1, -R1COOR2, -(CH2)q-(OCH2CH2)q-(OCH2CHR3)r-OR4, or -C H2)q-(OCH2C HR3)r-OOCR4; R, R1, R2, and R4 are hydrocarbon groups of C1-C26 and R3 is -H or a hydrocarbon group of C1-C2; and (m), (p), and (q) and (r) and 1-11, 0-7, and 0-50, and (n1), n2+n3, and n1+n2+n3 are 0- 1,000, 1-500, and <=1,000.
JP11504580A 1980-08-20 1980-08-20 Magnetic recording medium Pending JPS5737736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11504580A JPS5737736A (en) 1980-08-20 1980-08-20 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11504580A JPS5737736A (en) 1980-08-20 1980-08-20 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5737736A true JPS5737736A (en) 1982-03-02

Family

ID=14652816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11504580A Pending JPS5737736A (en) 1980-08-20 1980-08-20 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5737736A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0384123A (en) * 1989-08-29 1991-04-09 Iki Kaihatsu Kk Method and device for preventing outflow of muddy water of sand gathering facility

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0384123A (en) * 1989-08-29 1991-04-09 Iki Kaihatsu Kk Method and device for preventing outflow of muddy water of sand gathering facility

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