JPS56130825A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS56130825A
JPS56130825A JP3522780A JP3522780A JPS56130825A JP S56130825 A JPS56130825 A JP S56130825A JP 3522780 A JP3522780 A JP 3522780A JP 3522780 A JP3522780 A JP 3522780A JP S56130825 A JPS56130825 A JP S56130825A
Authority
JP
Japan
Prior art keywords
magnetic
recording medium
magnetic recording
magnetic powder
vinylchloride
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
JP3522780A
Other languages
Japanese (ja)
Inventor
Hiroshi Zaitsu
Akira Miyake
Yoshinori Yamamoto
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 JP3522780A priority Critical patent/JPS56130825A/en
Publication of JPS56130825A publication Critical patent/JPS56130825A/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
    • G11B5/712—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 surface treatment or coating of magnetic particles

Landscapes

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

Abstract

PURPOSE:To obtain the magnetic layer excellent in the dispersing of magnetic powder, by coating the metallic and magnetic powder with specific resin and using the binder including vinylchloride-vinylacetate copolymer. CONSTITUTION:The magnetic recording medium is obtained by coating the magnetic paint consisting of the metallic and magnetic powder coated with the polyvinylbutyral resin about 250-900 average polymerization degree and 60-75mol% butyral degree for the surface and the binder taking vinylchloride-vinylacetate copolymer as the major component, to the base.
JP3522780A 1980-03-19 1980-03-19 Magnetic recording medium Pending JPS56130825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3522780A JPS56130825A (en) 1980-03-19 1980-03-19 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3522780A JPS56130825A (en) 1980-03-19 1980-03-19 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS56130825A true JPS56130825A (en) 1981-10-14

Family

ID=12435945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3522780A Pending JPS56130825A (en) 1980-03-19 1980-03-19 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS56130825A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595424A (en) * 1982-07-01 1984-01-12 Sony Corp Magnetic recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595424A (en) * 1982-07-01 1984-01-12 Sony Corp Magnetic recording medium
JPH0159646B2 (en) * 1982-07-01 1989-12-19 Sony Corp

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