JPS5528520A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5528520A
JPS5528520A JP10031178A JP10031178A JPS5528520A JP S5528520 A JPS5528520 A JP S5528520A JP 10031178 A JP10031178 A JP 10031178A JP 10031178 A JP10031178 A JP 10031178A JP S5528520 A JPS5528520 A JP S5528520A
Authority
JP
Japan
Prior art keywords
magnetic
surface active
active agent
recording medium
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
JP10031178A
Other languages
Japanese (ja)
Inventor
Masaharu Nishimatsu
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP10031178A priority Critical patent/JPS5528520A/en
Publication of JPS5528520A publication Critical patent/JPS5528520A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enhance both the magnetic and orientation properties by mixing the alkylether-type surface active agent functioning as the antistatic agent plus RCOOH.M-type surface active agent into the binder containing the polyurethane resin.
CONSTITUTION: The magnetic recording medium is made by applying the magnetic coating material featuring the following composition to the substrate of polyester or the like. The binder to be mixed with the magnetic material uses the vinyl chloride-vinyl acetate polymer platicized with the polyurethane resin of not more than 40wt% to the whole binder quantity. Then the alkylether-type surface active agent functioning as the antistatic agent and the RCOOH.M-type (R: alkyl or alkylphenyl group; M: amine) surface active agent of not more than 50% of total amount of the surface active agent are mixed together to obtain the magnetic coating material. As a result, the half-life of the magnetic recording medium can be reduced, at the same time increasing the magnetic orientation property.
COPYRIGHT: (C)1980,JPO&Japio
JP10031178A 1978-08-17 1978-08-17 Magnetic recording medium Pending JPS5528520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10031178A JPS5528520A (en) 1978-08-17 1978-08-17 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10031178A JPS5528520A (en) 1978-08-17 1978-08-17 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5528520A true JPS5528520A (en) 1980-02-29

Family

ID=14270618

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10031178A Pending JPS5528520A (en) 1978-08-17 1978-08-17 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5528520A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5928225A (en) * 1982-08-09 1984-02-14 Victor Co Of Japan Ltd Magnetic recording medium
JPS6174930U (en) * 1984-10-18 1986-05-21

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5928225A (en) * 1982-08-09 1984-02-14 Victor Co Of Japan Ltd Magnetic recording medium
JPS6174930U (en) * 1984-10-18 1986-05-21

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