JPS57210435A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57210435A
JPS57210435A JP9551481A JP9551481A JPS57210435A JP S57210435 A JPS57210435 A JP S57210435A JP 9551481 A JP9551481 A JP 9551481A JP 9551481 A JP9551481 A JP 9551481A JP S57210435 A JPS57210435 A JP S57210435A
Authority
JP
Japan
Prior art keywords
coupling agent
titanium coupling
recording medium
magnetic
magnetic recording
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
JP9551481A
Other languages
Japanese (ja)
Inventor
Atsutaka Yamaguchi
Masaaki Yasui
Masayoshi Kawarai
Sadamu Kuze
Seiji Wataya
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 JP9551481A priority Critical patent/JPS57210435A/en
Publication of JPS57210435A publication Critical patent/JPS57210435A/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
    • G11B5/708—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 addition of non-magnetic particles to the layer

Landscapes

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

Abstract

PURPOSE:To obtain a magnetic recording medium which has superior dispersibility and surface smoothness, by adding a titanium coupling agent shown by a prescribed general formula and polyvinyl acetal resin to a magnetic layer. CONSTITUTION:A magnetic recording medium is obained by forming on a base a magnetic layer which contains a titanium coupling agent expressed by a general formula (RO)4-Ti-(X-Y)2 (where R is a hydrocarbon group or -CH2- C(C2H5)- (CH2-O-CH2-CH=CH2)2, X and Y are P and -(O-R1)2OH, and R1 is an alkyl group) and a polyvinyl acetal resin such as polyvinyl butyral resin as a binder component. The titanium coupling agent is contained in the magnetic layer by adding a solution which uses a proper solvent during preparation of a magnetic paint or by treating the surface of magnetic powder with the titanium coupling agent.
JP9551481A 1981-06-20 1981-06-20 Magnetic recording medium Pending JPS57210435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9551481A JPS57210435A (en) 1981-06-20 1981-06-20 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9551481A JPS57210435A (en) 1981-06-20 1981-06-20 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57210435A true JPS57210435A (en) 1982-12-24

Family

ID=14139675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9551481A Pending JPS57210435A (en) 1981-06-20 1981-06-20 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57210435A (en)

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