JPS54147813A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS54147813A
JPS54147813A JP5551378A JP5551378A JPS54147813A JP S54147813 A JPS54147813 A JP S54147813A JP 5551378 A JP5551378 A JP 5551378A JP 5551378 A JP5551378 A JP 5551378A JP S54147813 A JPS54147813 A JP S54147813A
Authority
JP
Japan
Prior art keywords
surface active
magnetic
active agent
coating containing
type surface
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
JP5551378A
Other languages
Japanese (ja)
Other versions
JPS5843813B2 (en
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 JP5551378A priority Critical patent/JPS5843813B2/en
Publication of JPS54147813A publication Critical patent/JPS54147813A/en
Publication of JPS5843813B2 publication Critical patent/JPS5843813B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To improve magnetic orientation characteristic without changing the effect of the reduction in the half-life of the charge quantity charged by using the magnetic coating containing the magnetic powder and the respectively specific binder and two kinds of surface active agents.
CONSTITUTION: The magnetic coating containing the vinyl chloride-vinyl acetate copolymer plasticized by polyurethane resins of 40wt% or under based on the total binder weight, alkyl ether type surface active agent, phosphoric acid ester type surface active agent of not more than the amount thereof and magnetic powder is coated on a substrate.
COPYRIGHT: (C)1979,JPO&Japio
JP5551378A 1978-05-12 1978-05-12 magnetic recording medium Expired JPS5843813B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5551378A JPS5843813B2 (en) 1978-05-12 1978-05-12 magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5551378A JPS5843813B2 (en) 1978-05-12 1978-05-12 magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS54147813A true JPS54147813A (en) 1979-11-19
JPS5843813B2 JPS5843813B2 (en) 1983-09-29

Family

ID=13000762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5551378A Expired JPS5843813B2 (en) 1978-05-12 1978-05-12 magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5843813B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540627A (en) * 1983-08-19 1985-09-10 Kabushiki Kaisha Toshiba Magnetic recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540627A (en) * 1983-08-19 1985-09-10 Kabushiki Kaisha Toshiba Magnetic recording medium

Also Published As

Publication number Publication date
JPS5843813B2 (en) 1983-09-29

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