JPH07504291A - ポリベンズアゾールポリマーを含有する軟質磁気記録媒体 - Google Patents

ポリベンズアゾールポリマーを含有する軟質磁気記録媒体

Info

Publication number
JPH07504291A
JPH07504291A JP5516615A JP51661593A JPH07504291A JP H07504291 A JPH07504291 A JP H07504291A JP 5516615 A JP5516615 A JP 5516615A JP 51661593 A JP51661593 A JP 51661593A JP H07504291 A JPH07504291 A JP H07504291A
Authority
JP
Japan
Prior art keywords
magnetic recording
recording medium
soft magnetic
formulas
tape
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
JP5516615A
Other languages
English (en)
Japanese (ja)
Inventor
ペレッティ，ドナルド　ジェイ．
ピーリニ，ピーター　イー．
マッカーシー，ティモシィ　エム．
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of JPH07504291A publication Critical patent/JPH07504291A/ja
Pending 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/22—Polybenzoxazoles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
    • C08G75/32—Polythiazoles; Polythiadiazoles
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Magnetic Record Carriers (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
JP5516615A 1992-03-24 1993-03-11 ポリベンズアゾールポリマーを含有する軟質磁気記録媒体 Pending JPH07504291A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US85704392A 1992-03-24 1992-03-24
US857,043 1992-03-24
PCT/US1993/002207 WO1993019462A1 (en) 1992-03-24 1993-03-11 Flexible magnetic recording medium containing polybenzazole polymers

Publications (1)

Publication Number Publication Date
JPH07504291A true JPH07504291A (ja) 1995-05-11

Family

ID=25325052

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5516615A Pending JPH07504291A (ja) 1992-03-24 1993-03-11 ポリベンズアゾールポリマーを含有する軟質磁気記録媒体

Country Status (6)

Country Link
EP (1) EP0632921A1 (en:Method)
JP (1) JPH07504291A (en:Method)
KR (2) KR950701116A (en:Method)
CA (2) CA2132710A1 (en:Method)
TW (2) TW216460B (en:Method)
WO (2) WO1993019462A1 (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999004390A1 (fr) * 1997-07-17 1999-01-28 Sony Corporation Support d'enregistrement magnetique et dispositif d'enregistrement/de reproduction magnetique le comprenant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3669457B2 (ja) * 1996-03-19 2005-07-06 富士通株式会社 磁気記録媒体及びその製造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449296A (en) * 1967-05-29 1969-06-10 Du Pont Polybenzoxazole film
JPS58122622A (ja) * 1982-01-18 1983-07-21 Hitachi Ltd 磁気記録媒体に有機保護膜を形成する方法
US5124432A (en) * 1989-08-31 1992-06-23 The Dow Chemical Company Branched polybenzazole polymer and method of preparation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999004390A1 (fr) * 1997-07-17 1999-01-28 Sony Corporation Support d'enregistrement magnetique et dispositif d'enregistrement/de reproduction magnetique le comprenant

Also Published As

Publication number Publication date
EP0632921A1 (en) 1995-01-11
KR950701115A (ko) 1995-02-20
TW240311B (en:Method) 1995-02-11
TW216460B (en:Method) 1993-11-21
WO1993019462A1 (en) 1993-09-30
CA2132710A1 (en) 1993-09-30
WO1993019461A1 (en) 1993-09-30
CA2132545A1 (en) 1993-09-30
KR950701116A (ko) 1995-02-20

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