JPS5668931A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5668931A
JPS5668931A JP14407879A JP14407879A JPS5668931A JP S5668931 A JPS5668931 A JP S5668931A JP 14407879 A JP14407879 A JP 14407879A JP 14407879 A JP14407879 A JP 14407879A JP S5668931 A JPS5668931 A JP S5668931A
Authority
JP
Japan
Prior art keywords
acid
glycol
recording medium
thin film
metal thin
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
JP14407879A
Other languages
Japanese (ja)
Other versions
JPH0223925B2 (en
Inventor
Atsutaka Yamaguchi
Tsunemi Oiwa
Naoto Akaha
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell Ltd
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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP14407879A priority Critical patent/JPS5668931A/en
Publication of JPS5668931A publication Critical patent/JPS5668931A/en
Publication of JPH0223925B2 publication Critical patent/JPH0223925B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To improve durability by providing a coating of specific aliphatic ester on a magnetic metal thin film for a magnetic recording medium containing Co.
CONSTITUTION: To a magnetic metal thin film containing Co, ester of dihydric alcohol, such as ethylene glycol, propylene glycol, trimethylene glycol, α-butylene glycol, and hexamethylene glycol, trivalent alcohol such as glycerol and pentaglycerol, and a fatty acid of C12WC13 such as a lauric acid, tridecyl acid, myristic acid, pentadecyl acid, palmitic acid, heptadecyl acid, and stearic acid is bonded in 50W500mg/m2 proportion. Cosequently, the coefficient of the friction to a magnetic head is decreased to improve the lubricity, the wear resistance is improved and even after long-period storage at a high temperature, the durability will not lower much.
COPYRIGHT: (C)1981,JPO&Japio
JP14407879A 1979-11-06 1979-11-06 Magnetic recording medium Granted JPS5668931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14407879A JPS5668931A (en) 1979-11-06 1979-11-06 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14407879A JPS5668931A (en) 1979-11-06 1979-11-06 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS5668931A true JPS5668931A (en) 1981-06-09
JPH0223925B2 JPH0223925B2 (en) 1990-05-25

Family

ID=15353751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14407879A Granted JPS5668931A (en) 1979-11-06 1979-11-06 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5668931A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5075001A (en) * 1973-11-02 1975-06-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5075001A (en) * 1973-11-02 1975-06-20

Also Published As

Publication number Publication date
JPH0223925B2 (en) 1990-05-25

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