GB1136895A - Magnetic recording material - Google Patents

Magnetic recording material

Info

Publication number
GB1136895A
GB1136895A GB14440/66A GB1444066A GB1136895A GB 1136895 A GB1136895 A GB 1136895A GB 14440/66 A GB14440/66 A GB 14440/66A GB 1444066 A GB1444066 A GB 1444066A GB 1136895 A GB1136895 A GB 1136895A
Authority
GB
United Kingdom
Prior art keywords
cellulose triacetate
layer
acid
april
sub
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
GB14440/66A
Other languages
English (en)
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak 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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1136895A publication Critical patent/GB1136895A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/002—Inhomogeneous material in general
    • H01B3/004—Inhomogeneous material in general with conductive additives or conductive layers
    • 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
    • G11B5/708—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 addition of non-magnetic particles to the layer
    • 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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • 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
    • 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
    • G11B5/73937—Substrates having an organic polymer comprising a ring structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
    • 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
    • Y10T428/26—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

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
GB14440/66A 1965-04-05 1966-04-01 Magnetic recording material Expired GB1136895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44565265A 1965-04-05 1965-04-05

Publications (1)

Publication Number Publication Date
GB1136895A true GB1136895A (en) 1968-12-18

Family

ID=23769714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14440/66A Expired GB1136895A (en) 1965-04-05 1966-04-01 Magnetic recording material

Country Status (4)

Country Link
US (1) US3440091A (enExample)
BE (1) BE678583A (enExample)
DE (1) DE1301838B (enExample)
GB (1) GB1136895A (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2203129A1 (enExample) * 1972-10-13 1974-05-10 Agfa Gevaert Ag
NL7902131A (nl) * 1978-03-16 1979-09-18 Tdk Electronics Co Ltd Magnetisch registratiemedium.
US9708076B2 (en) 2013-03-14 2017-07-18 Bae Systems Plc Lightning protection system
US9834319B2 (en) 2013-03-14 2017-12-05 Bae Systems Plc Lightning protection for vehicles

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3634185A (en) * 1968-11-04 1972-01-11 Eastman Kodak Co Laminated magnetic recording element
BE756149A (fr) * 1969-09-15 1971-02-15 Ncr Co Support d'enregistrement magnetique
US3617378A (en) * 1969-09-29 1971-11-02 Ibm Magnetic recording media
ES195976Y (es) * 1973-05-02 1975-07-01 Craf Von Berckheim Electrodo autoadhesivo para una instalacion de climatiza- cion electrica.
JPS50104003A (enExample) * 1974-01-16 1975-08-16
JPS52206U (enExample) * 1975-06-20 1977-01-05
US4038693A (en) * 1975-09-23 1977-07-26 International Business Machines Corporation Anti-static magnetic record disk assembly
JPS5256902A (en) * 1975-11-06 1977-05-10 Sony Corp Production of magnetic recording medium
US4195303A (en) * 1976-03-31 1980-03-25 E. I. Du Pont De Nemours And Company Magnetic printing process and apparatus
US4191961A (en) * 1976-03-31 1980-03-04 E. I. Du Pont De Nemours And Company Magnetic printing process and apparatus
US4336546A (en) * 1977-03-15 1982-06-22 E. I. Du Pont De Nemours And Company Magnetic printing apparatus
JPS53116113A (en) * 1977-03-18 1978-10-11 Hitachi Maxell Undercoating agent for magnetic recording medium
US4275113A (en) * 1978-10-17 1981-06-23 Hitachi Maxell, Ltd. Magnetic recording medium
US4237514A (en) * 1978-12-01 1980-12-02 Dayton-Granger, Inc. Lightning diverter strip
US4570197A (en) * 1983-01-03 1986-02-11 Minnesota Mining & Manufacturing Company Static reduction in magnetic recording cassettes
JPH0610873B2 (ja) * 1984-02-08 1994-02-09 日立マクセル株式会社 磁気デイスク
JPH06119630A (ja) * 1992-10-02 1994-04-28 Matsushita Electric Ind Co Ltd 磁気記録媒体
EP0701250A1 (en) 1994-08-18 1996-03-13 Sony Electronics Inc. Magnetic recording media
US9858956B2 (en) 2014-07-28 2018-01-02 International Business Machines Corporation Conductive polymers for use in magnetic media

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE699693C (de) * 1939-05-20 1940-12-04 Ernst Siegling Treibriemen
US2825558A (en) * 1955-04-25 1958-03-04 Honeywell Regulator Co Electrostatic tape and methods of construction
US2819186A (en) * 1956-01-19 1958-01-07 Reeves Soundcraft Corp Magnetic recording tape
US2997451A (en) * 1957-03-07 1961-08-22 Harry B Miller Conductive phonograph record containing thermoplastic resin and carbon black
DE1151939B (de) * 1957-12-27 1963-07-25 Hoechst Ag Verfahren zur Herstellung von verspinnbaren, Pigmente in feiner Verteilung enthaltenden linearen aromatischen Polyestern
US3235772A (en) * 1961-08-08 1966-02-15 Gurin Emanuel Anti-static printer's blanket in combination with grounded metal roller
US3293066A (en) * 1962-12-19 1966-12-20 Ibm High speed antistatic magnetic member

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2203129A1 (enExample) * 1972-10-13 1974-05-10 Agfa Gevaert Ag
NL7902131A (nl) * 1978-03-16 1979-09-18 Tdk Electronics Co Ltd Magnetisch registratiemedium.
US9708076B2 (en) 2013-03-14 2017-07-18 Bae Systems Plc Lightning protection system
US9834319B2 (en) 2013-03-14 2017-12-05 Bae Systems Plc Lightning protection for vehicles

Also Published As

Publication number Publication date
US3440091A (en) 1969-04-22
BE678583A (enExample) 1966-09-01
DE1301838B (de) 1969-08-28

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