JPS5532254A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5532254A
JPS5532254A JP10410678A JP10410678A JPS5532254A JP S5532254 A JPS5532254 A JP S5532254A JP 10410678 A JP10410678 A JP 10410678A JP 10410678 A JP10410678 A JP 10410678A JP S5532254 A JPS5532254 A JP S5532254A
Authority
JP
Japan
Prior art keywords
less
magnetic powder
soap
expressed
ammonium chloride
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
JP10410678A
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 JP10410678A priority Critical patent/JPS5532254A/en
Publication of JPS5532254A publication Critical patent/JPS5532254A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To make it possible to prevent magnetic coating strentgh from deteriorating and also to eliminate sticking to a head by combinationally using a specific binder and magnetic powder whose surface is coated with speficia 4th-class ammonium chloride and soap.
CONSTITUTION: As a charging inhibitor, 4th-class ammonium chloride expressed I (R is any hydrocarbon radical of alkyl, aryl, etc., containing not less than one amide group; R1 to R3 are any hydrocarbon groups; X is anion of Cl, Br, I, SO4, PO4, etc.) and soap of less 50 weight% expressed by II (R is alkyl constituting fatty acid of C4W18; M is amine of less than C11 with only a C chaine in hydrophobic group) are dissolved in an adequate solvent. The solution is stuck to the magnetic powder and then dried by heating. A magnetic coating material obtained by mixing this magnetic powder in the binder containing vinyl chloride-vinyl acetate copolymer alkalified by nitrile butadiene rubber is applied onto a base.
COPYRIGHT: (C)1980,JPO&Japio
JP10410678A 1978-08-25 1978-08-25 Magnetic recording medium Pending JPS5532254A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10410678A JPS5532254A (en) 1978-08-25 1978-08-25 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10410678A JPS5532254A (en) 1978-08-25 1978-08-25 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5532254A true JPS5532254A (en) 1980-03-06

Family

ID=14371863

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10410678A Pending JPS5532254A (en) 1978-08-25 1978-08-25 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5532254A (en)

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