JPS5740742A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5740742A
JPS5740742A JP11616380A JP11616380A JPS5740742A JP S5740742 A JPS5740742 A JP S5740742A JP 11616380 A JP11616380 A JP 11616380A JP 11616380 A JP11616380 A JP 11616380A JP S5740742 A JPS5740742 A JP S5740742A
Authority
JP
Japan
Prior art keywords
recording medium
magnetic recording
terminal
radiation
compound
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
JP11616380A
Other languages
Japanese (ja)
Other versions
JPS6346488B2 (en
Inventor
Masashi Somezawa
Kaoru Nakajima
Yoshinobu Ninomiya
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 JP11616380A priority Critical patent/JPS5740742A/en
Publication of JPS5740742A publication Critical patent/JPS5740742A/en
Publication of JPS6346488B2 publication Critical patent/JPS6346488B2/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

Abstract

PURPOSE:To obtain a magnetic recording medium having excellent dispersibility by using a compound, having at a terminal a lipophilic group with an acrylic double bond sensitive to radiation, as a dispersant for magnetic paint. CONSTITUTION:A base is coated with magnetic paint which uses a 0.1-5% compound of preferably <=500 molecular weight having an acrylic double bond at one terminal and a lipophilic group of a carboxylic acid, sulfonic acid, sulfate, quaternary ammonium salt, amine, phosphate, ethylene oxide, and hydroxyl group type, etc., at the other terminal and then irradiated with radiation, such as electron beams, neutron beams and gamma rays to obtain a magnetic recording medium.
JP11616380A 1980-08-23 1980-08-23 Magnetic recording medium Granted JPS5740742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11616380A JPS5740742A (en) 1980-08-23 1980-08-23 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11616380A JPS5740742A (en) 1980-08-23 1980-08-23 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS5740742A true JPS5740742A (en) 1982-03-06
JPS6346488B2 JPS6346488B2 (en) 1988-09-16

Family

ID=14680331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11616380A Granted JPS5740742A (en) 1980-08-23 1980-08-23 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5740742A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58166534A (en) * 1982-03-29 1983-10-01 Mitsui Toatsu Chem Inc Magnetic recording material
JPS6052922A (en) * 1983-09-02 1985-03-26 Tdk Corp Magnetic recording medium
JPS6079520A (en) * 1983-10-04 1985-05-07 Tdk Corp Magnetic recording medium
JPS6079521A (en) * 1983-10-04 1985-05-07 Tdk Corp Magnetic recording medium
JP2009521546A (en) * 2005-12-21 2009-06-04 ボーシュ アンド ローム インコーポレイティド Cationic hydrophilic siloxanyl monomer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4715104A (en) * 1971-01-02 1972-08-18
JPS4712423U (en) * 1971-03-11 1972-10-14
JPS5077433A (en) * 1973-11-13 1975-06-24
JPS56124119A (en) * 1980-03-05 1981-09-29 Tdk Corp Magnetic recording medium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4715104A (en) * 1971-01-02 1972-08-18
JPS4712423U (en) * 1971-03-11 1972-10-14
JPS5077433A (en) * 1973-11-13 1975-06-24
JPS56124119A (en) * 1980-03-05 1981-09-29 Tdk Corp Magnetic recording medium

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58166534A (en) * 1982-03-29 1983-10-01 Mitsui Toatsu Chem Inc Magnetic recording material
JPH0366727B2 (en) * 1982-03-29 1991-10-18 Mitsui Toatsu Chemicals
JPS6052922A (en) * 1983-09-02 1985-03-26 Tdk Corp Magnetic recording medium
JPH0576089B2 (en) * 1983-09-02 1993-10-21 Tdk Electronics Co Ltd
JPS6079520A (en) * 1983-10-04 1985-05-07 Tdk Corp Magnetic recording medium
JPS6079521A (en) * 1983-10-04 1985-05-07 Tdk Corp Magnetic recording medium
JPH0576091B2 (en) * 1983-10-04 1993-10-21 Tdk Electronics Co Ltd
JPH0576092B2 (en) * 1983-10-04 1993-10-21 Tdk Electronics Co Ltd
JP2009521546A (en) * 2005-12-21 2009-06-04 ボーシュ アンド ローム インコーポレイティド Cationic hydrophilic siloxanyl monomer

Also Published As

Publication number Publication date
JPS6346488B2 (en) 1988-09-16

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