KR950701116A - 폴리벤즈아졸 중합체를 포함하는 가요성 자기 기록매체(Flexible magnetic recording medium containing polybenzazole polymers) - Google Patents

폴리벤즈아졸 중합체를 포함하는 가요성 자기 기록매체(Flexible magnetic recording medium containing polybenzazole polymers)

Info

Publication number
KR950701116A
KR950701116A KR1019940703310A KR19940703310A KR950701116A KR 950701116 A KR950701116 A KR 950701116A KR 1019940703310 A KR1019940703310 A KR 1019940703310A KR 19940703310 A KR19940703310 A KR 19940703310A KR 950701116 A KR950701116 A KR 950701116A
Authority
KR
South Korea
Prior art keywords
recording medium
magnetic recording
medium containing
flexible magnetic
polybenzazole polymers
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.)
Withdrawn
Application number
KR1019940703310A
Other languages
English (en)
Korean (ko)
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 filed Critical
Publication of KR950701116A publication Critical patent/KR950701116A/ko
Withdrawn legal-status Critical Current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)
KR1019940703310A 1992-03-24 1994-09-24 폴리벤즈아졸 중합체를 포함하는 가요성 자기 기록매체(Flexible magnetic recording medium containing polybenzazole polymers) Withdrawn KR950701116A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85704392A 1992-03-24 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
KR950701116A true KR950701116A (ko) 1995-02-20

Family

ID=25325052

Family Applications (2)

Application Number Title Priority Date Filing Date
KR1019940703310A Withdrawn KR950701116A (ko) 1992-03-24 1994-09-24 폴리벤즈아졸 중합체를 포함하는 가요성 자기 기록매체(Flexible magnetic recording medium containing polybenzazole polymers)
KR1019940703309A Withdrawn KR950701115A (ko) 1992-03-24 1994-09-24 폴리벤즈아졸 중합체를 함유하는 연질 자기 기록 매체(Flexible maganetic rocording medium containing polybenzazole polymers)

Family Applications After (1)

Application Number Title Priority Date Filing Date
KR1019940703309A Withdrawn KR950701115A (ko) 1992-03-24 1994-09-24 폴리벤즈아졸 중합체를 함유하는 연질 자기 기록 매체(Flexible maganetic rocording medium containing polybenzazole polymers)

Country Status (6)

Country Link
EP (1) EP0632921A1 (enrdf_load_stackoverflow)
JP (1) JPH07504291A (enrdf_load_stackoverflow)
KR (2) KR950701116A (enrdf_load_stackoverflow)
CA (2) CA2132710A1 (enrdf_load_stackoverflow)
TW (2) TW216460B (enrdf_load_stackoverflow)
WO (2) WO1993019461A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* 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
CN1239570A (zh) * 1997-07-17 1999-12-22 索尼公司 磁记录介质和使用该介质的磁记录/再现装置

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

Also Published As

Publication number Publication date
CA2132545A1 (en) 1993-09-30
CA2132710A1 (en) 1993-09-30
EP0632921A1 (en) 1995-01-11
WO1993019461A1 (en) 1993-09-30
TW240311B (enrdf_load_stackoverflow) 1995-02-11
TW216460B (enrdf_load_stackoverflow) 1993-11-21
WO1993019462A1 (en) 1993-09-30
KR950701115A (ko) 1995-02-20
JPH07504291A (ja) 1995-05-11

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KR950701116A (ko) 폴리벤즈아졸 중합체를 포함하는 가요성 자기 기록매체(Flexible magnetic recording medium containing polybenzazole polymers)
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Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 19940924

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid