JPS6363972B2 - - Google Patents

Info

Publication number
JPS6363972B2
JPS6363972B2 JP58118881A JP11888183A JPS6363972B2 JP S6363972 B2 JPS6363972 B2 JP S6363972B2 JP 58118881 A JP58118881 A JP 58118881A JP 11888183 A JP11888183 A JP 11888183A JP S6363972 B2 JPS6363972 B2 JP S6363972B2
Authority
JP
Japan
Prior art keywords
back coat
magnetic
coat layer
layer
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.)
Expired
Application number
JP58118881A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6010417A (ja
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
Priority to JP58118881A priority Critical patent/JPS6010417A/ja
Priority to US06/624,097 priority patent/US4555443A/en
Publication of JPS6010417A publication Critical patent/JPS6010417A/ja
Publication of JPS6363972B2 publication Critical patent/JPS6363972B2/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
    • G11B5/735—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 characterised by the back layer
    • G11B5/7356—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 characterised by the back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2
    • 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
    • G11B5/735—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 characterised by the back layer
    • G11B5/7356—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 characterised by the back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2
    • G11B5/7358—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 characterised by the back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2 specially adapted for achieving a specific property, e.g. average roughness [Ra]
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/266—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension of base or substrate
    • 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
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31565—Next to polyester [polyethylene terephthalate, etc.]
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31609—Particulate metal or metal compound-containing
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31652—Of asbestos
    • Y10T428/31663—As siloxane, silicone or silane

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Lubricants (AREA)
JP58118881A 1983-06-30 1983-06-30 磁気記録媒体 Granted JPS6010417A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP58118881A JPS6010417A (ja) 1983-06-30 1983-06-30 磁気記録媒体
US06/624,097 US4555443A (en) 1983-06-30 1984-06-25 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58118881A JPS6010417A (ja) 1983-06-30 1983-06-30 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS6010417A JPS6010417A (ja) 1985-01-19
JPS6363972B2 true JPS6363972B2 (enExample) 1988-12-09

Family

ID=14747438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58118881A Granted JPS6010417A (ja) 1983-06-30 1983-06-30 磁気記録媒体

Country Status (2)

Country Link
US (1) US4555443A (enExample)
JP (1) JPS6010417A (enExample)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759991A (en) * 1984-03-06 1988-07-26 Toagosei Chemical Industry Co., Ltd. Magnetic recording medium having a lubricating coating layer
US4597801A (en) * 1984-09-28 1986-07-01 Union Carbide Corporation Silane dispersing agent for magnetic media
JPH0680529B2 (ja) * 1985-01-28 1994-10-12 日立マクセル株式会社 磁気記録媒体
KR900002972B1 (ko) * 1985-05-29 1990-05-03 니뽕 빅터 가부시끼가이샤 자기 기록 매체
JPS6226633A (ja) * 1985-07-29 1987-02-04 Victor Co Of Japan Ltd 磁気記録媒体
JPS62110622A (ja) * 1985-11-08 1987-05-21 Konishiroku Photo Ind Co Ltd 磁気記録媒体
DE3541478A1 (de) * 1985-11-23 1987-05-27 Beiersdorf Ag Herzklappenprothese und verfahren zu deren herstellung
JPH0792908B2 (ja) * 1986-04-23 1995-10-09 松下電器産業株式会社 磁気記録媒体
JPH01173420A (ja) * 1987-12-28 1989-07-10 Konica Corp 非磁性粉を含有するバックコート層を設けた磁気記録媒体
US5063105A (en) * 1989-01-17 1991-11-05 Fuji Photo Film Co., Ltd. Magnetic recording medium in which certain physical properties of the magnetic layer and the backcoat layer are specified
JPH0380485A (ja) * 1989-08-22 1991-04-05 Hitachi Maxell Ltd オーディオテープカセット
JP2824974B2 (ja) * 1989-11-10 1998-11-18 ティーディーケイ株式会社 磁気テープカートリッジ
JPH04274015A (ja) * 1991-02-27 1992-09-30 Hitachi Maxell Ltd オーデイオカセットテープとその製造方法
US5230818A (en) * 1991-12-20 1993-07-27 Eastman Kodak Company Coating compositions for master media for anhysteretic recording
JPH05298662A (ja) * 1992-04-14 1993-11-12 Fuji Photo Film Co Ltd 磁気記録媒体用結合剤および磁気記録媒体
DE69407415T2 (de) * 1993-06-30 1998-05-14 Imation Corp Magnetische aufzeichnungsmedien mit neuem vernetzungsmittel
US5684661A (en) * 1995-04-13 1997-11-04 Eastman Kodak Company Magnetic head assembly and method for reading and/or writing data onto a thin magnetic layer placed on a photographic element
US5876910A (en) * 1997-10-20 1999-03-02 Eastman Kodak Company Aqueous coating compositions for surface protective layers for imaging elements
US6432346B1 (en) * 2000-05-03 2002-08-13 Iomega Corporation Process of making magnetic recording disk
JP2003141846A (ja) * 2001-11-01 2003-05-16 Fuji Photo Film Co Ltd テープリール
US7124466B2 (en) * 2002-02-05 2006-10-24 Seagate Technology Llc Particle capture system
EP1701988A4 (en) * 2003-11-28 2009-11-04 Commw Scient Ind Res Org POLYURETHANES
KR100852715B1 (ko) * 2004-08-13 2008-08-19 이해욱 기능성 피막조성물, 상기 피막조성물 상에 형성된 필름,그리고 상기 피막조성물 및 필름을 형성하는 방법
US20060122358A1 (en) * 2004-11-16 2006-06-08 Cold Spring Technology, Inc. Imaging on polyurea based films
US8748532B2 (en) * 2012-06-09 2014-06-10 The Boeing Company Flexible, low temperature, filled composite material compositions, coatings, and methods
JP5802224B2 (ja) * 2013-01-31 2015-10-28 富士フイルム株式会社 磁気記録媒体

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412805B1 (enExample) * 1971-07-14 1979-05-25
US3941911A (en) * 1973-11-19 1976-03-02 Graham Magnetics Incorporated Thermally resistant magnetic tape
US4267206A (en) * 1978-03-17 1981-05-12 Graham Magnetics, Inc. Process of making high-temperature magnetic tape
JPS5715231A (en) * 1980-07-03 1982-01-26 Sony Corp Magnetic recording medium

Also Published As

Publication number Publication date
JPS6010417A (ja) 1985-01-19
US4555443A (en) 1985-11-26

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