JPS5668933A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5668933A
JPS5668933A JP14568979A JP14568979A JPS5668933A JP S5668933 A JPS5668933 A JP S5668933A JP 14568979 A JP14568979 A JP 14568979A JP 14568979 A JP14568979 A JP 14568979A JP S5668933 A JPS5668933 A JP S5668933A
Authority
JP
Japan
Prior art keywords
group
thin film
silicone oil
metal thin
modified silicone
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
JP14568979A
Other languages
Japanese (ja)
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 Holdings 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 JP14568979A priority Critical patent/JPS5668933A/en
Publication of JPS5668933A publication Critical patent/JPS5668933A/en
Pending legal-status Critical Current

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  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To improve durability and oxidation resistance by providing a high molecular substance coating, containing modified silicone oil, on a magnetic metal thin film containing Co.
CONSTITUTION: On a magnetic metal thin film made of Co-Ni, Co-Fe, P-containing Co alloys, etc., a coating containing modified silicone oil (e.g. SF-8427, SF-8428, etc., of TORAY SILICON KK manufacture), expressed by the structural formula (at least either of R1 and R2 is -R3-OH or -OH and the residual group is a methyl group; R3 is an alkylene group of C1WC20 and (m) and (n) integers between 1 and 1,000.), in a high molecular substance consisting essentially of a vinyl chloride and vinyl acetate copolymer with an OH group is provided. Consequently, a bleed- out phenomenon seldom occurs even in long-period use at a high temperature and high humidity.
COPYRIGHT: (C)1981,JPO&Japio
JP14568979A 1979-11-10 1979-11-10 Magnetic recording medium Pending JPS5668933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14568979A JPS5668933A (en) 1979-11-10 1979-11-10 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14568979A JPS5668933A (en) 1979-11-10 1979-11-10 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5668933A true JPS5668933A (en) 1981-06-09

Family

ID=15390810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14568979A Pending JPS5668933A (en) 1979-11-10 1979-11-10 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5668933A (en)

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