JPS56101636A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS56101636A
JPS56101636A JP472180A JP472180A JPS56101636A JP S56101636 A JPS56101636 A JP S56101636A JP 472180 A JP472180 A JP 472180A JP 472180 A JP472180 A JP 472180A JP S56101636 A JPS56101636 A JP S56101636A
Authority
JP
Japan
Prior art keywords
molecular weight
magnetic layer
binder
copolymer
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
JP472180A
Other languages
Japanese (ja)
Inventor
Takezo Shimizu
Shigeo Aoyama
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 JP472180A priority Critical patent/JPS56101636A/en
Publication of JPS56101636A publication Critical patent/JPS56101636A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To obtain a magnetic layer having superior dispersibility, wear resistance and heat resistance of magnetic powder, and excellent adhesion to a base, by providing the magnetic layer using a binder which consists of a specific ternary copolymer, thermoplastic saturated polyester resin and trifunctional low-molecular weight isocyanate. CONSTITUTION:With a ternary copolymer of 200-600 polymerization degree consisting of 70-80wt% vinyl chloride, 1-25wt% vinyl propionate and 5-20wt% vinyl alcohol, thermoplastic polyester of 10,000-30,000 molecular weight having free OH group and free COOH group is mixed in 9:1-1:9 proportion to the said copolymer to obtain a binder. Further, a binder obtained by adding 3-50wt% trifunctional low-molecular weight isocyanate to the said mixture is used to form a magnetic layer.
JP472180A 1980-01-19 1980-01-19 Magnetic recording medium Pending JPS56101636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP472180A JPS56101636A (en) 1980-01-19 1980-01-19 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP472180A JPS56101636A (en) 1980-01-19 1980-01-19 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS56101636A true JPS56101636A (en) 1981-08-14

Family

ID=11591743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP472180A Pending JPS56101636A (en) 1980-01-19 1980-01-19 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS56101636A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940320A (en) * 1982-08-30 1984-03-06 Sony Corp Magnetic recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940320A (en) * 1982-08-30 1984-03-06 Sony Corp Magnetic recording medium
JPH0379765B2 (en) * 1982-08-30 1991-12-19 Sony Corp

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