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JPS5744227A - Magnetic recording medium - Google Patents
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JPS5744227A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5744227A
JPS5744227A JP12020580A JP12020580A JPS5744227A JP S5744227 A JPS5744227 A JP S5744227A JP 12020580 A JP12020580 A JP 12020580A JP 12020580 A JP12020580 A JP 12020580A JP S5744227 A JPS5744227 A JP S5744227A
Authority
JP
Japan
Prior art keywords
recording medium
magnetic recording
binder
magnetic
formula
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.)
Granted
Application number
JP12020580A
Other languages
Japanese (ja)
Other versions
JPS639296B2 (en
Inventor
Masashi Somezawa
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP12020580A priority Critical patent/JPS5744227A/en
Publication of JPS5744227A publication Critical patent/JPS5744227A/en
Publication of JPS639296B2 publication Critical patent/JPS639296B2/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
    • G11B5/7023—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 polyesters, polyethers, silicones, polyvinyl resins, polyacrylresins or epoxy resins

Landscapes

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

Abstract

PURPOSE:To obtain a magnetic recording medium which has the enhanced dispersibility of magnetic powder and excellent electromagnetic conversion performance, by using the vinyl chloride-vinyl acetate-vinyl alcohol copolymer which is modified by introducing the hydrophilic group, as a binder. CONSTITUTION:For instance, such compound as a formula A is used as shown by formula I. That is, the magnetic powder (such as gamma-Fe2O3), the above-mentioned compound to be used as a binder, the other binder (such as polyurethane resin), the solvent, etc. are mixed up to obtain a magnetic coating material. This material is applied onto a supporter and then dried to obtain a magnetic recording medium.
JP12020580A 1980-08-30 1980-08-30 Magnetic recording medium Granted JPS5744227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12020580A JPS5744227A (en) 1980-08-30 1980-08-30 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12020580A JPS5744227A (en) 1980-08-30 1980-08-30 Magnetic recording medium

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP28301694A Division JP2500674B2 (en) 1994-10-21 1994-10-21 Magnetic recording media

Publications (2)

Publication Number Publication Date
JPS5744227A true JPS5744227A (en) 1982-03-12
JPS639296B2 JPS639296B2 (en) 1988-02-26

Family

ID=14780499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12020580A Granted JPS5744227A (en) 1980-08-30 1980-08-30 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5744227A (en)

Cited By (18)

* 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
JPS598127A (en) * 1982-07-05 1984-01-17 Sony Corp Magnetic recording medium
JPS5940320A (en) * 1982-08-30 1984-03-06 Sony Corp Magnetic recording medium
JPS60121514A (en) * 1983-12-06 1985-06-29 Sony Corp Magnetic recording medium
JPS60235814A (en) * 1984-05-08 1985-11-22 Nippon Zeon Co Ltd Resin for magnetic paint
JPS60238309A (en) * 1984-05-11 1985-11-27 Nippon Zeon Co Ltd Resin for magnetic paint
JPS61123017A (en) * 1984-11-20 1986-06-10 Matsushita Electric Ind Co Ltd magnetic recording medium
JPS628329A (en) * 1985-07-04 1987-01-16 Sony Corp Magnetic recording medium
JPS6266418A (en) * 1985-09-19 1987-03-25 Tdk Corp Magnetic recording medium
JPS6273416A (en) * 1985-09-26 1987-04-04 Sekisui Chem Co Ltd Binder for magnetic recording body
JPS62119724A (en) * 1985-11-19 1987-06-01 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS62143230A (en) * 1985-12-17 1987-06-26 Konishiroku Photo Ind Co Ltd Production of magnetic recording medium
JPS6364627A (en) * 1986-09-05 1988-03-23 Fuji Photo Film Co Ltd Magnetic recording medium
JPS63103423A (en) * 1986-10-20 1988-05-09 Fuji Photo Film Co Ltd Magnetic recording medium
JPS63103419A (en) * 1986-10-20 1988-05-09 Fuji Photo Film Co Ltd Magnetic recording medium
JPS63224025A (en) * 1987-03-13 1988-09-19 Konica Corp Magnetic recording medium
US4798755A (en) * 1985-05-01 1989-01-17 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPH03116414A (en) * 1990-08-31 1991-05-17 Konica Corp Magnetic recording medium

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147311A (en) * 1974-05-15 1975-11-26
JPS51909A (en) * 1974-06-20 1976-01-07 Hitachi Maxell JIKIKIRO KUTAI
JPS5249003A (en) * 1975-10-16 1977-04-19 Hitachi Maxell Ltd Magnetic recording medium
JPS52141207A (en) * 1976-05-19 1977-11-25 Hitachi Maxell Magnetic recording media
JPS52141206A (en) * 1976-05-19 1977-11-25 Hitachi Maxell Magnetic recording media
JPS5428603A (en) * 1977-08-05 1979-03-03 Toyo Boseki Magnetic recording medium
JPS54107313A (en) * 1978-02-09 1979-08-23 Sony Corp Magnetic recording medium
JPS5538693A (en) * 1978-09-13 1980-03-18 Toyo Tire & Rubber Co Ltd Magnetic recording medium
JPS55117734A (en) * 1979-02-28 1980-09-10 Sekisui Chem Co Ltd Binding agent for magnetic recording medium

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147311A (en) * 1974-05-15 1975-11-26
JPS51909A (en) * 1974-06-20 1976-01-07 Hitachi Maxell JIKIKIRO KUTAI
JPS5249003A (en) * 1975-10-16 1977-04-19 Hitachi Maxell Ltd Magnetic recording medium
JPS52141207A (en) * 1976-05-19 1977-11-25 Hitachi Maxell Magnetic recording media
JPS52141206A (en) * 1976-05-19 1977-11-25 Hitachi Maxell Magnetic recording media
JPS5428603A (en) * 1977-08-05 1979-03-03 Toyo Boseki Magnetic recording medium
JPS54107313A (en) * 1978-02-09 1979-08-23 Sony Corp Magnetic recording medium
JPS5538693A (en) * 1978-09-13 1980-03-18 Toyo Tire & Rubber Co Ltd Magnetic recording medium
JPS55117734A (en) * 1979-02-28 1980-09-10 Sekisui Chem Co Ltd Binding agent for magnetic recording medium

Cited By (18)

* 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
JPS598127A (en) * 1982-07-05 1984-01-17 Sony Corp Magnetic recording medium
JPS5940320A (en) * 1982-08-30 1984-03-06 Sony Corp Magnetic recording medium
JPS60121514A (en) * 1983-12-06 1985-06-29 Sony Corp Magnetic recording medium
JPS60235814A (en) * 1984-05-08 1985-11-22 Nippon Zeon Co Ltd Resin for magnetic paint
JPS60238309A (en) * 1984-05-11 1985-11-27 Nippon Zeon Co Ltd Resin for magnetic paint
JPS61123017A (en) * 1984-11-20 1986-06-10 Matsushita Electric Ind Co Ltd magnetic recording medium
US4798755A (en) * 1985-05-01 1989-01-17 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPS628329A (en) * 1985-07-04 1987-01-16 Sony Corp Magnetic recording medium
JPS6266418A (en) * 1985-09-19 1987-03-25 Tdk Corp Magnetic recording medium
JPS6273416A (en) * 1985-09-26 1987-04-04 Sekisui Chem Co Ltd Binder for magnetic recording body
JPS62119724A (en) * 1985-11-19 1987-06-01 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS62143230A (en) * 1985-12-17 1987-06-26 Konishiroku Photo Ind Co Ltd Production of magnetic recording medium
JPS6364627A (en) * 1986-09-05 1988-03-23 Fuji Photo Film Co Ltd Magnetic recording medium
JPS63103423A (en) * 1986-10-20 1988-05-09 Fuji Photo Film Co Ltd Magnetic recording medium
JPS63103419A (en) * 1986-10-20 1988-05-09 Fuji Photo Film Co Ltd Magnetic recording medium
JPS63224025A (en) * 1987-03-13 1988-09-19 Konica Corp Magnetic recording medium
JPH03116414A (en) * 1990-08-31 1991-05-17 Konica Corp Magnetic recording medium

Also Published As

Publication number Publication date
JPS639296B2 (en) 1988-02-26

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