JPS54141606A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS54141606A
JPS54141606A JP4962978A JP4962978A JPS54141606A JP S54141606 A JPS54141606 A JP S54141606A JP 4962978 A JP4962978 A JP 4962978A JP 4962978 A JP4962978 A JP 4962978A JP S54141606 A JPS54141606 A JP S54141606A
Authority
JP
Japan
Prior art keywords
recording medium
magnetic recording
magnetic coating
magnetic
surfactant
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
JP4962978A
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 JP4962978A priority Critical patent/JPS54141606A/en
Publication of JPS54141606A publication Critical patent/JPS54141606A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obviate degrading of orientation characteristic, surface characteristic and other properties even when the magnetic coating using curable binders is left standing for a long time by using phosphate of higher alcohol as the surfactant of the magnetic coating.
CONSTITUTION: Magnetic powder, curable binder and its hardener and the phosphate of higher alcohol such as the one of formulas I thru III (R is alkyl, alkyl phenyl; n is addition molar number of ethylene oxide) are mixed. The resultant magnetic coating is coated on a substrate such as polyester base, whereby the magnetic recording medium is formed. As a result, the orientation characteristic is better than that of the one using R-O-(C2H4O)nH as the surfactant.
COPYRIGHT: (C)1979,JPO&Japio
JP4962978A 1978-04-26 1978-04-26 Magnetic recording medium Pending JPS54141606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4962978A JPS54141606A (en) 1978-04-26 1978-04-26 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4962978A JPS54141606A (en) 1978-04-26 1978-04-26 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS54141606A true JPS54141606A (en) 1979-11-05

Family

ID=12836506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4962978A Pending JPS54141606A (en) 1978-04-26 1978-04-26 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS54141606A (en)

Cited By (3)

* 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
JPS61250829A (en) * 1985-04-30 1986-11-07 Konishiroku Photo Ind Co Ltd Magnetic recording medium
US4732812A (en) * 1986-06-23 1988-03-22 Minnesota Mining And Manufacturing Company Magnetic recording medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5040103A (en) * 1973-08-16 1975-04-12
JPS5315803A (en) * 1976-07-28 1978-02-14 Fuji Photo Film Co Ltd Magnetic recording material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5040103A (en) * 1973-08-16 1975-04-12
JPS5315803A (en) * 1976-07-28 1978-02-14 Fuji Photo Film Co Ltd Magnetic recording material

Cited By (3)

* 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
JPS61250829A (en) * 1985-04-30 1986-11-07 Konishiroku Photo Ind Co Ltd Magnetic recording medium
US4732812A (en) * 1986-06-23 1988-03-22 Minnesota Mining And Manufacturing Company Magnetic recording medium

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