JPS6449116A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS6449116A
JPS6449116A JP20499087A JP20499087A JPS6449116A JP S6449116 A JPS6449116 A JP S6449116A JP 20499087 A JP20499087 A JP 20499087A JP 20499087 A JP20499087 A JP 20499087A JP S6449116 A JPS6449116 A JP S6449116A
Authority
JP
Japan
Prior art keywords
copolymer
vinyl chloride
magnetic
monomer
binder
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
JP20499087A
Other languages
Japanese (ja)
Inventor
Masae Takano
Takahiro Miyazaki
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP20499087A priority Critical patent/JPS6449116A/en
Publication of JPS6449116A publication Critical patent/JPS6449116A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To improve the dispersibility of magnetic powder and the surface characteristic of a magnetic layer and to improve durability, magnetic characteristics and electromagnetic conversion characteristics by forming the magnetic layer essentially consisting of ferromagnetic powder and a specific binder on a nonmagnetic base. CONSTITUTION:The magnetic layer essentially consisting of the ferromagnetic powder and the binder is formed on the nonmagnetic base and a vinyl chloride copolymer contg. ternary amine in the molecule is incorporated as the binder into the magnetic powder. The copolymer is expressed by (CH2CH)i(-Cl, side chain)-(X)j-(Y)k, where X is a monomer having a vinyl group copolymerizable with vinyl chloride; Y is a monomer having a vinyl group copolymerizable with vinyl chloride and ternary amine; (i), (j), (k) are the degrees of polymn. The degrees of polymn. (i, j, k) of said copolymer are preferably 100<=(i+j+k)<=1,000. The ratio at which the vinyl chloride component occupies in the copolymer is preferably 30-80mol.%. The ratio of the monomer Y is preferably 0.1-20%.
JP20499087A 1987-08-20 1987-08-20 Magnetic recording medium Pending JPS6449116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20499087A JPS6449116A (en) 1987-08-20 1987-08-20 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20499087A JPS6449116A (en) 1987-08-20 1987-08-20 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS6449116A true JPS6449116A (en) 1989-02-23

Family

ID=16499646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20499087A Pending JPS6449116A (en) 1987-08-20 1987-08-20 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS6449116A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6083219A (en) * 1983-10-13 1985-05-11 Sekisui Chem Co Ltd Binder for magnetic recording body
JPS626429A (en) * 1985-07-02 1987-01-13 Sony Corp Magnetic recording medium
JPS62107434A (en) * 1985-11-01 1987-05-18 Nisshin Kagaku Kogyo Kk Magnetic recording medium
JPS62257619A (en) * 1986-04-30 1987-11-10 Nisshin Kagaku Kogyo Kk Magnetic recording medium
JPS6396727A (en) * 1986-10-09 1988-04-27 Nisshin Kagaku Kogyo Kk Magnetic recording medium

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6083219A (en) * 1983-10-13 1985-05-11 Sekisui Chem Co Ltd Binder for magnetic recording body
JPS626429A (en) * 1985-07-02 1987-01-13 Sony Corp Magnetic recording medium
JPS62107434A (en) * 1985-11-01 1987-05-18 Nisshin Kagaku Kogyo Kk Magnetic recording medium
JPS62257619A (en) * 1986-04-30 1987-11-10 Nisshin Kagaku Kogyo Kk Magnetic recording medium
JPS6396727A (en) * 1986-10-09 1988-04-27 Nisshin Kagaku Kogyo Kk Magnetic recording medium

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