JPH0449168B2 - - Google Patents

Info

Publication number
JPH0449168B2
JPH0449168B2 JP56188714A JP18871481A JPH0449168B2 JP H0449168 B2 JPH0449168 B2 JP H0449168B2 JP 56188714 A JP56188714 A JP 56188714A JP 18871481 A JP18871481 A JP 18871481A JP H0449168 B2 JPH0449168 B2 JP H0449168B2
Authority
JP
Japan
Prior art keywords
magnetic
weight
videotape
diphenylmethane diisocyanate
polyurethane resin
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.)
Expired - Lifetime
Application number
JP56188714A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5891524A (ja
Inventor
Ichiji Myata
Toshiro Hidaka
Seiji Wataya
Takeshi Matsura
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 JP18871481A priority Critical patent/JPS5891524A/ja
Publication of JPS5891524A publication Critical patent/JPS5891524A/ja
Publication of JPH0449168B2 publication Critical patent/JPH0449168B2/ja
Granted 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
    • G11B5/702—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 bonding agent
    • G11B5/7021—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 bonding agent containing a polyurethane or a polyisocyanate

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
JP18871481A 1981-11-24 1981-11-24 磁気記録媒体 Granted JPS5891524A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18871481A JPS5891524A (ja) 1981-11-24 1981-11-24 磁気記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18871481A JPS5891524A (ja) 1981-11-24 1981-11-24 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS5891524A JPS5891524A (ja) 1983-05-31
JPH0449168B2 true JPH0449168B2 (enrdf_load_stackoverflow) 1992-08-10

Family

ID=16228499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18871481A Granted JPS5891524A (ja) 1981-11-24 1981-11-24 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS5891524A (enrdf_load_stackoverflow)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54153009A (en) * 1978-05-23 1979-12-01 Toyo Tire & Rubber Co Magnetic recording medium
JPS5538693A (en) * 1978-09-13 1980-03-18 Toyo Tire & Rubber Co Ltd Magnetic recording medium
DE3002164C2 (de) * 1979-01-19 1994-05-05 Minnesota Mining & Mfg Magnetisches Aufzeichnungsmedium aus Feinteilchen in einem Polyurethanblockcopolymer-Bindemittel und Verfahren zu seiner Herstellung
JPS56137522A (en) * 1980-03-26 1981-10-27 Fuji Photo Film Co Ltd Magnetic recording material

Also Published As

Publication number Publication date
JPS5891524A (ja) 1983-05-31

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