JPS5613522A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5613522A
JPS5613522A JP8747879A JP8747879A JPS5613522A JP S5613522 A JPS5613522 A JP S5613522A JP 8747879 A JP8747879 A JP 8747879A JP 8747879 A JP8747879 A JP 8747879A JP S5613522 A JPS5613522 A JP S5613522A
Authority
JP
Japan
Prior art keywords
property
magnetic recording
magnetic
vinyl
recording medium
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
JP8747879A
Other languages
Japanese (ja)
Inventor
Norimichi Tokuda
Shigeru Takamatsu
Hideo Kobayashi
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 JP8747879A priority Critical patent/JPS5613522A/en
Priority to GB8022605A priority patent/GB2054622B/en
Priority to DE19803026357 priority patent/DE3026357A1/en
Publication of JPS5613522A publication Critical patent/JPS5613522A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain a magnetic recording medium having dispersibility and surface property improved by forming a magnetic layer by mixing magnetic powder in a binder that contains -SO3Na group containing polyester resin, a copolymer of vinyl chrolide and vinyl acetate and thermoplastic polyurethane and then by performing cross-linking with isocyanate.
CONSTITUTION: Ferromagnetic powder is dispersed in a binder, containing a resin introduced -SO3Na group as a side chain for polyester resin, a copolymer of vinyl chrolide and vinyl acetate and thermoplastic polyurethane prepolymer. A mixture of this magnetic coating and a cross-linking agent of an isocyanate compound is applied on a polyester film, etc., and set by drying to form a magnetic recording tape. Consequently, the magnetic recording tape can be obtained which has improved durability, friction property, physical property such as still property, electromagnetic converting property in addition to dispersibility and surface property and is used for video recording.
COPYRIGHT: (C)1981,JPO&Japio
JP8747879A 1979-07-12 1979-07-12 Magnetic recording medium Pending JPS5613522A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8747879A JPS5613522A (en) 1979-07-12 1979-07-12 Magnetic recording medium
GB8022605A GB2054622B (en) 1979-07-12 1980-07-10 Magnetic recording medium
DE19803026357 DE3026357A1 (en) 1979-07-12 1980-07-11 MAGNETIC RECORDING MEDIUM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8747879A JPS5613522A (en) 1979-07-12 1979-07-12 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5613522A true JPS5613522A (en) 1981-02-09

Family

ID=13916026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8747879A Pending JPS5613522A (en) 1979-07-12 1979-07-12 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5613522A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS598127A (en) * 1982-07-05 1984-01-17 Sony Corp Magnetic recording medium
JPS61126903A (en) * 1984-11-24 1986-06-14 Kawasaki Steel Corp Method and device for rolling plate material
JPS61180927A (en) * 1985-02-06 1986-08-13 Matsushita Electric Ind Co Ltd Magnetic recording medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS598127A (en) * 1982-07-05 1984-01-17 Sony Corp Magnetic recording medium
JPH0379764B2 (en) * 1982-07-05 1991-12-19 Sonii Kk
JPS61126903A (en) * 1984-11-24 1986-06-14 Kawasaki Steel Corp Method and device for rolling plate material
JPS61180927A (en) * 1985-02-06 1986-08-13 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPH0535483B2 (en) * 1985-02-06 1993-05-26 Matsushita Electric Ind Co Ltd

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