JPS551643A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS551643A
JPS551643A JP7437278A JP7437278A JPS551643A JP S551643 A JPS551643 A JP S551643A JP 7437278 A JP7437278 A JP 7437278A JP 7437278 A JP7437278 A JP 7437278A JP S551643 A JPS551643 A JP S551643A
Authority
JP
Japan
Prior art keywords
binder
base
magnetic layer
resin
preferrably
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
JP7437278A
Other languages
Japanese (ja)
Inventor
Yoshinori Yamamoto
Akira Miyake
Ichiji Miyata
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 JP7437278A priority Critical patent/JPS551643A/en
Publication of JPS551643A publication Critical patent/JPS551643A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To enable to form suitable magnetic layer having excellent dispersibility of magnetic powder and bondingness of base and further excessive mechanical strength, by taking the material for the base as aromatic polyamide system resin and taking the binder for the magnetic layer as specific resin.
CONSTITUTION: On the base preferrably about 3μ thick consisting of aromatic polyamide system resin, the magnetic layer is placed, which takes polyvinyl butyral resin, urethane prepolymer of 5 to 50 wt%, preferrably 10 to 30 wt% to the total amount, and low molecular weight and more functional isocyanate compound of 1 to 30 wt%, favorably 2 to 20 wt% to the binder entire components as the binder. Thus, even if the total thickness of magnetic recording media is thin, the mechanical strength can sufficiently be held and the recording and reproducing time can be extended.
COPYRIGHT: (C)1980,JPO&Japio
JP7437278A 1978-06-20 1978-06-20 Magnetic recording medium Pending JPS551643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7437278A JPS551643A (en) 1978-06-20 1978-06-20 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7437278A JPS551643A (en) 1978-06-20 1978-06-20 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS551643A true JPS551643A (en) 1980-01-08

Family

ID=13545261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7437278A Pending JPS551643A (en) 1978-06-20 1978-06-20 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS551643A (en)

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