JPS6478418A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS6478418A
JPS6478418A JP62235695A JP23569587A JPS6478418A JP S6478418 A JPS6478418 A JP S6478418A JP 62235695 A JP62235695 A JP 62235695A JP 23569587 A JP23569587 A JP 23569587A JP S6478418 A JPS6478418 A JP S6478418A
Authority
JP
Japan
Prior art keywords
contg
polycondensation
dispersing
layer formed
formula
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
JP62235695A
Other languages
Japanese (ja)
Inventor
Ichiji Miyata
Hiroshi Azuma
Kenji Kono
Shoji Nishihara
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.)
Maxell Holdings Ltd
Original Assignee
Hitachi Maxell Ltd
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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP62235695A priority Critical patent/JPS6478418A/en
Publication of JPS6478418A publication Critical patent/JPS6478418A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To provide a title medium which has good electromagnetic conversion characteristics and hardly causes head clogging by providing a magnetic layer formed by dispersing and binding magnetic powder into a binder contg. a polyes ter resin obtd. by polycondensation of polyhydric alcohol contg. specific diol and polybasic acid and a multifunctional isocyanate compd. on a nonmagnetic base. CONSTITUTION:The magnetic layer formed by dispersing and binding the magnetic powder into the binder contg. the polyester resin obtd. by polycondensation of the polyhydric alcohol contg. the diol expressed by the formula I and the polybasic acid and the multifunctional isocyanate compd. is provided on the nonmagnetic base. In the formula I, R, R' are an alkylene group; X is a hydrogen atom, metal atom or ammonium. The electromagnetic conversion characteristics are thereby improved and the head clogging is hardly generated.
JP62235695A 1987-09-19 1987-09-19 Magnetic recording medium Pending JPS6478418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62235695A JPS6478418A (en) 1987-09-19 1987-09-19 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62235695A JPS6478418A (en) 1987-09-19 1987-09-19 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS6478418A true JPS6478418A (en) 1989-03-23

Family

ID=16989851

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62235695A Pending JPS6478418A (en) 1987-09-19 1987-09-19 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS6478418A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008115244A (en) * 2006-11-02 2008-05-22 Toyobo Co Ltd Method for producing copolyester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008115244A (en) * 2006-11-02 2008-05-22 Toyobo Co Ltd Method for producing copolyester

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