KR870001947B1 - 자기 피복 조성물 및 자기 기록 필름(磁氣被覆組成勿 및 磁氣記錄媒體) - Google Patents

자기 피복 조성물 및 자기 기록 필름(磁氣被覆組成勿 및 磁氣記錄媒體) Download PDF

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Publication number
KR870001947B1
KR870001947B1 KR1019850001121A KR850001121A KR870001947B1 KR 870001947 B1 KR870001947 B1 KR 870001947B1 KR 1019850001121 A KR1019850001121 A KR 1019850001121A KR 850001121 A KR850001121 A KR 850001121A KR 870001947 B1 KR870001947 B1 KR 870001947B1
Authority
KR
South Korea
Prior art keywords
magnetic
coating composition
particles
coating
magnetic recording
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.)
Expired
Application number
KR1019850001121A
Other languages
English (en)
Korean (ko)
Other versions
KR850006202A (ko
Inventor
요시유끼 시부야
시게오 다이몬
가즈오 오까무라
Original Assignee
다이낀 고오교오 가부시끼가이샤
야마다 미노루
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 다이낀 고오교오 가부시끼가이샤, 야마다 미노루 filed Critical 다이낀 고오교오 가부시끼가이샤
Publication of KR850006202A publication Critical patent/KR850006202A/ko
Application granted granted Critical
Publication of KR870001947B1 publication Critical patent/KR870001947B1/ko
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/10—Metal compounds
    • 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70652—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3
    • G11B5/70668—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3 containing a dopant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y10T428/257—Iron oxide or aluminum oxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Powder Metallurgy (AREA)
KR1019850001121A 1984-03-01 1985-02-22 자기 피복 조성물 및 자기 기록 필름(磁氣被覆組成勿 및 磁氣記錄媒體) Expired KR870001947B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP39941 1984-03-01
JP59039941A JPS60184576A (ja) 1984-03-01 1984-03-01 磁性塗料組成物
JP59-39941 1984-03-01

Publications (2)

Publication Number Publication Date
KR850006202A KR850006202A (ko) 1985-10-02
KR870001947B1 true KR870001947B1 (ko) 1987-10-23

Family

ID=12566974

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850001121A Expired KR870001947B1 (ko) 1984-03-01 1985-02-22 자기 피복 조성물 및 자기 기록 필름(磁氣被覆組成勿 및 磁氣記錄媒體)

Country Status (6)

Country Link
US (1) US5346758A (https=)
EP (1) EP0154903B1 (https=)
JP (1) JPS60184576A (https=)
KR (1) KR870001947B1 (https=)
CA (1) CA1340138C (https=)
DE (1) DE3561087D1 (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0610859B2 (ja) * 1984-04-05 1994-02-09 ティーディーケイ株式会社 磁気記録媒体
US4632866A (en) * 1984-04-05 1986-12-30 Tdk Corporation Magnetic recording medium
GB2181445B (en) * 1985-10-09 1989-11-08 Tdk Corp Magnetic recording medium
US5040552A (en) * 1988-12-08 1991-08-20 Philip Morris Incorporated Metal carbide heat source
US5188130A (en) 1989-11-29 1993-02-23 Philip Morris, Incorporated Chemical heat source comprising metal nitride, metal oxide and carbon
US5247949A (en) * 1991-01-09 1993-09-28 Philip Morris Incorporated Method for producing metal carbide heat sources
JPH05266462A (ja) * 1991-11-25 1993-10-15 Tdk Corp 磁気記録媒体
JPH0721550A (ja) * 1993-06-30 1995-01-24 Tdk Corp 磁気記録媒体およびその製造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US357293A (en) * 1887-02-08 Electric cut-out
US3865627A (en) * 1972-05-22 1975-02-11 Minnesota Mining & Mfg Magnetic recording medium incorporating fine acicular iron-based particles
FR2481256A1 (fr) * 1980-04-28 1981-10-30 Rhone Poulenc Ind Particules magnetiques de coercivite elevee a base d'oxydes de fer ferrimagnetique dopees au cobalt, leurs procedes de preparation et leurs applications
JPS5920402A (ja) * 1982-07-26 1984-02-02 Fuji Photo Film Co Ltd 強磁性金属粉末
DE3240337A1 (de) * 1982-10-30 1984-05-03 Basf Ag, 6700 Ludwigshafen Nadelfoermige ferromagnetische chromdioxidteilchen
DE3469820D1 (en) * 1983-04-25 1988-04-14 Daikin Ind Ltd Acicular particulate material containing iron carbide
US4632866A (en) * 1984-04-05 1986-12-30 Tdk Corporation Magnetic recording medium

Also Published As

Publication number Publication date
EP0154903A1 (en) 1985-09-18
JPS60184576A (ja) 1985-09-20
CA1340138C (en) 1998-11-24
DE3561087D1 (en) 1988-01-07
KR850006202A (ko) 1985-10-02
EP0154903B1 (en) 1987-11-25
US5346758A (en) 1994-09-13
JPH0352500B2 (https=) 1991-08-12

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