JPS5613524A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5613524A
JPS5613524A JP8748079A JP8748079A JPS5613524A JP S5613524 A JPS5613524 A JP S5613524A JP 8748079 A JP8748079 A JP 8748079A JP 8748079 A JP8748079 A JP 8748079A JP S5613524 A JPS5613524 A JP S5613524A
Authority
JP
Japan
Prior art keywords
magnetic
magnetic recording
recording medium
isocyanate
thermoplastic polyurethane
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
JP8748079A
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 JP8748079A priority Critical patent/JPS5613524A/en
Priority to GB8022605A priority patent/GB2054622B/en
Priority to DE19803026357 priority patent/DE3026357A1/en
Publication of JPS5613524A publication Critical patent/JPS5613524A/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 furface property improved by mixing magnetic powder in a binder that contains -SO3Na group containing polyester resin and thermoplastic polyurethane and then by performing cross-linking with isocyanate for forming a magnetic layer.
CONSTITUTION: Ferromagnetic powder is dispersed in a binder containing a resin introduced -SO3Na group as a side chain for polyester resin, thermoplastic polyurethane prepolymer. Then, a mixture of this magnetic coating and a cross-linking agent of an isocyanate-compound is applied on a polyester film, etc., and it is dried and hardened to form a magnetic recording tape. Consequently, the magnetic recording tape can be obtained which has improved durability, run friction and still time as well as surface reflectivity, residual magnetic-flux density and Br/Bm ratio.
COPYRIGHT: (C)1981,JPO&Japio
JP8748079A 1979-07-12 1979-07-12 Magnetic recording medium Pending JPS5613524A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8748079A JPS5613524A (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
JP8748079A JPS5613524A (en) 1979-07-12 1979-07-12 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5613524A true JPS5613524A (en) 1981-02-09

Family

ID=13916089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8748079A Pending JPS5613524A (en) 1979-07-12 1979-07-12 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5613524A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001528A1 (en) * 1981-10-15 1983-04-28 Nakajima, Kaoru Magnetic recording medium
JPS595424A (en) * 1982-07-01 1984-01-12 Sony Corp Magnetic recording medium
JPH0642235U (en) * 1992-11-19 1994-06-03 英行 平出 Scissors
JPH0711369U (en) * 1993-07-30 1995-02-21 英行 平出 Scissors

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001528A1 (en) * 1981-10-15 1983-04-28 Nakajima, Kaoru Magnetic recording medium
JPS595424A (en) * 1982-07-01 1984-01-12 Sony Corp Magnetic recording medium
JPH0159646B2 (en) * 1982-07-01 1989-12-19 Sony Corp
JPH0642235U (en) * 1992-11-19 1994-06-03 英行 平出 Scissors
JPH0711369U (en) * 1993-07-30 1995-02-21 英行 平出 Scissors

Similar Documents

Publication Publication Date Title
JPS57150129A (en) Magnetic recording medium
JPS54143608A (en) Magnetic recording medium
JPS55139634A (en) Magnetic recording medium
JPS5538672A (en) Magnetic recording medium
JPS5613524A (en) Magnetic recording medium
JPS5538671A (en) Magnetic recording medium
JPS5613519A (en) Magnetic recording medium
JPS57143737A (en) Manufacture of magnetic recording medium
JPS5771556A (en) Magnetic tape having leader tape
JPS5613522A (en) Magnetic recording medium
JPS5613520A (en) Magnetic recording medium
JPS57208636A (en) Magnetic recording medium
JPS5613521A (en) Magnetic recording medium
JPS57183627A (en) Magnetic recording medium
JPS5613523A (en) Magnetic recording medium
JPS5750327A (en) Magnetic recording medium
JPS5671822A (en) Magnetic recording medium
JPS5746325A (en) Magnetic recording medium
JPS5528559A (en) Magnetic recording medium
JPS55129933A (en) Magnetic recording medium
JPS57158025A (en) Magnetic recording medium
JPS5746324A (en) Magnetic recording medium
JPS55129932A (en) Magnetic recording medium
JPS55139636A (en) Magnetic recording medium
JPS5528554A (en) Magnetic recording medium