JPS56124120A - Article for magnetic recording - Google Patents

Article for magnetic recording

Info

Publication number
JPS56124120A
JPS56124120A JP2575180A JP2575180A JPS56124120A JP S56124120 A JPS56124120 A JP S56124120A JP 2575180 A JP2575180 A JP 2575180A JP 2575180 A JP2575180 A JP 2575180A JP S56124120 A JPS56124120 A JP S56124120A
Authority
JP
Japan
Prior art keywords
magnetic recording
alkylene terephthalate
recording material
alkylene
article
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.)
Granted
Application number
JP2575180A
Other languages
Japanese (ja)
Other versions
JPS6226094B2 (en
Inventor
Keiichi Uno
Hikoichi Nagano
Atsushi Ikegami
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.)
Toyobo Co Ltd
Original Assignee
Toyobo Co 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP2575180A priority Critical patent/JPS56124120A/en
Publication of JPS56124120A publication Critical patent/JPS56124120A/en
Publication of JPS6226094B2 publication Critical patent/JPS6226094B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate

Landscapes

  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Magnetic Record Carriers (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)

Abstract

PURPOSE:To obtain a magnetic recording material which is superior in heat-proof dimension stability and resistance to wear and has a high Young's modulus, by using the alkylene terephthalate polyester film or sheet having a specific structure unit as the substance. CONSTITUTION:The magnetic layer is provided on the film or the seet consisting of the alkylene terephthalate polyester which has 10 structure units, which are indicated by general expression (I), per 100 total ester bonds and includes >=70mol% the alkylene terephthalate unit formed with the alkylene glycol of 2-10 carbons and the terephthalic acid, thereby obtaining a magnetic recording material.
JP2575180A 1980-02-29 1980-02-29 Article for magnetic recording Granted JPS56124120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2575180A JPS56124120A (en) 1980-02-29 1980-02-29 Article for magnetic recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2575180A JPS56124120A (en) 1980-02-29 1980-02-29 Article for magnetic recording

Publications (2)

Publication Number Publication Date
JPS56124120A true JPS56124120A (en) 1981-09-29
JPS6226094B2 JPS6226094B2 (en) 1987-06-06

Family

ID=12174529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2575180A Granted JPS56124120A (en) 1980-02-29 1980-02-29 Article for magnetic recording

Country Status (1)

Country Link
JP (1) JPS56124120A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014202961A1 (en) * 2013-06-18 2014-12-24 Dupont Teijin Films U.S. Limited Partnership Copolyesterimides derived from n,n'-bis-(hydroxyalkyl)-benzophenone-3,3',4,4'-tetracarboxylic diimide and films made therefrom
US9637588B2 (en) 2013-10-07 2017-05-02 Dupont Teijin Films U.S. Limited Partnership Copolyesterimides derived from aromatic dicarboxylic acids and aliphatic glycols and films made therefrom
US10450411B2 (en) 2014-06-20 2019-10-22 Dupont Teijin Films U.S. Limited Partnership Copolyesterimides comprising bis(2-hydroxyalkyl)-2,2′-(1,4-phenylene)bis(1,3-dioxoisoindoline-5-carboxylate) and articles made therefrom

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6962232B2 (en) 2018-02-21 2021-11-05 Tdk株式会社 Soft magnetic alloys and magnetic parts

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014202961A1 (en) * 2013-06-18 2014-12-24 Dupont Teijin Films U.S. Limited Partnership Copolyesterimides derived from n,n'-bis-(hydroxyalkyl)-benzophenone-3,3',4,4'-tetracarboxylic diimide and films made therefrom
JP2016523297A (en) * 2013-06-18 2016-08-08 デュポン テイジン フィルムズ ユー．エス．リミテッド パートナーシップ Copolyesterimide derived from N, N'-bis- (hydroxyalkyl) -benzophenone-3,3 ', 4,4'-tetracarboxylic acid diimide and film produced therefrom
US9422399B2 (en) 2013-06-18 2016-08-23 Dupont Teijin Films U.S. Limited Partnership Copolyesterimides derived from N,N′-bis-(hydroxyalkyl)-3,3′,4,4′-diphenylsulfonetetracarboxylic diimide and films made therefrom
CN105324410B (en) * 2013-06-18 2017-03-22 杜邦帝人薄膜美国有限公司 Copolyesterimides derived from n,n'-bis-(hydroxyalkyl)-benzophenone-3,3',4,4'-tetracarboxylic diimide and films made therefrom
CN107057066A (en) * 2013-06-18 2017-08-18 杜邦帝人薄膜美国有限公司 Copolyester imide and film prepared therefrom
EP3211021A1 (en) * 2013-06-18 2017-08-30 Dupont Teijin Films U.S. Limited Partnership Copolyesterimides derived from n,n'-bis-(hydroxyalkyl)-benzophenone-3,3',4,4'-tetracarboxylic diimide
US9840590B2 (en) 2013-06-18 2017-12-12 Dupont Teijin Films U.S. Limited Partnership Copolyesterimides derived from N,N′-bis-(hydroxyalkyl)-benzophenone-3,3′,4,4′-tetracarboxylic diimide and films made therefrom
US10377862B2 (en) 2013-06-18 2019-08-13 Dupont Teijin Films U.S. Limited Partnership Copolyesterimides derived from N,N′-bis-(hydroxyalkyl)-benzophenone-3,3′,4,4′-tetracarboxylic diimide and films made therefrom
US9637588B2 (en) 2013-10-07 2017-05-02 Dupont Teijin Films U.S. Limited Partnership Copolyesterimides derived from aromatic dicarboxylic acids and aliphatic glycols and films made therefrom
US10450411B2 (en) 2014-06-20 2019-10-22 Dupont Teijin Films U.S. Limited Partnership Copolyesterimides comprising bis(2-hydroxyalkyl)-2,2′-(1,4-phenylene)bis(1,3-dioxoisoindoline-5-carboxylate) and articles made therefrom

Also Published As

Publication number Publication date
JPS6226094B2 (en) 1987-06-06

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