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JPS54147811A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS54147811A
JPS54147811A JP5551178A JP5551178A JPS54147811A JP S54147811 A JPS54147811 A JP S54147811A JP 5551178 A JP5551178 A JP 5551178A JP 5551178 A JP5551178 A JP 5551178A JP S54147811 A JPS54147811 A JP S54147811A
Authority
JP
Japan
Prior art keywords
alkyl
recording medium
sulfonate salt
magnetic recording
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
JP5551178A
Other languages
Japanese (ja)
Other versions
JPS5836410B2 (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 JP53055511A priority Critical patent/JPS5836410B2/en
Publication of JPS54147811A publication Critical patent/JPS54147811A/en
Publication of JPS5836410B2 publication Critical patent/JPS5836410B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To decrease the half-life of the charge quantity charged to a magnetic recording medium by using alkyl sulfonate salt or fatty acid amide sulfonate salt of 0.3 wt% or over of residual inorganic salt quantity as a surface active agent.
CONSTITUTION: In the alkyl sulfonate salt produced by formula I (R is alkyl, preferably C11-16) and aliphatic amide sulfonate salt produced by formula II (R is alkyl, preferably C9-16), the one of 0.3wt% or over of residual inorganic salt quantity is used as the surface active agent of the magnetic coating which comprises dispersing magnetic powder into binder.
COPYRIGHT: (C)1979,JPO&Japio
JP53055511A 1978-05-12 1978-05-12 magnetic recording medium Expired JPS5836410B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53055511A JPS5836410B2 (en) 1978-05-12 1978-05-12 magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53055511A JPS5836410B2 (en) 1978-05-12 1978-05-12 magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS54147811A true JPS54147811A (en) 1979-11-19
JPS5836410B2 JPS5836410B2 (en) 1983-08-09

Family

ID=13000702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53055511A Expired JPS5836410B2 (en) 1978-05-12 1978-05-12 magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5836410B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58175135A (en) * 1982-04-05 1983-10-14 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS58175133A (en) * 1982-04-06 1983-10-14 Konishiroku Photo Ind Co Ltd Magnetic recording medium
US4420531A (en) * 1980-09-25 1983-12-13 Tdk Electronics Co., Ltd. Magnetic recording medium
US4505990A (en) * 1983-07-14 1985-03-19 Hercules Incorporated Coating compositions
US4521486A (en) * 1981-07-13 1985-06-04 Sony Corporation Magnetic recording medium
US4613520A (en) * 1983-07-14 1986-09-23 Hercules Incorporated Coating compositions

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4420531A (en) * 1980-09-25 1983-12-13 Tdk Electronics Co., Ltd. Magnetic recording medium
US4521486A (en) * 1981-07-13 1985-06-04 Sony Corporation Magnetic recording medium
JPS58175135A (en) * 1982-04-05 1983-10-14 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPH0332129B2 (en) * 1982-04-05 1991-05-10 Konishiroku Photo Ind
JPS58175133A (en) * 1982-04-06 1983-10-14 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPH0332128B2 (en) * 1982-04-06 1991-05-10 Konishiroku Photo Ind
US4505990A (en) * 1983-07-14 1985-03-19 Hercules Incorporated Coating compositions
US4613520A (en) * 1983-07-14 1986-09-23 Hercules Incorporated Coating compositions

Also Published As

Publication number Publication date
JPS5836410B2 (en) 1983-08-09

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