FR2318192A1 - Pellicule de polyester utilisee comme bande magnetique - Google Patents

Pellicule de polyester utilisee comme bande magnetique

Info

Publication number
FR2318192A1
FR2318192A1 FR7622007A FR7622007A FR2318192A1 FR 2318192 A1 FR2318192 A1 FR 2318192A1 FR 7622007 A FR7622007 A FR 7622007A FR 7622007 A FR7622007 A FR 7622007A FR 2318192 A1 FR2318192 A1 FR 2318192A1
Authority
FR
France
Prior art keywords
magnetic tape
polyester film
film used
polyester
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.)
Withdrawn
Application number
FR7622007A
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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
Priority claimed from JP8793675A external-priority patent/JPS5211908A/ja
Priority claimed from JP50088991A external-priority patent/JPS5212803A/ja
Application filed by Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Publication of FR2318192A1 publication Critical patent/FR2318192A1/fr
Withdrawn legal-status Critical Current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
    • G11B5/68—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
    • G11B5/7085—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 non-magnetic abrasive particles
    • 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
FR7622007A 1975-07-18 1976-07-19 Pellicule de polyester utilisee comme bande magnetique Withdrawn FR2318192A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8793675A JPS5211908A (en) 1975-07-18 1975-07-18 Polyethylene telephutarate film
JP50088991A JPS5212803A (en) 1975-07-21 1975-07-21 Polyethylene terephthalate film for magnetic tape

Publications (1)

Publication Number Publication Date
FR2318192A1 true FR2318192A1 (fr) 1977-02-11

Family

ID=26429167

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7622007A Withdrawn FR2318192A1 (fr) 1975-07-18 1976-07-19 Pellicule de polyester utilisee comme bande magnetique

Country Status (3)

Country Link
DE (1) DE2632094A1 (fr)
FR (1) FR2318192A1 (fr)
GB (1) GB1547241A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0108593A1 (fr) * 1982-11-02 1984-05-16 Toray Industries, Inc. Pellicule de polyester pour milieu d'enregistrement magnétique
FR2539349A1 (fr) * 1983-01-18 1984-07-20 Diafoil Co Ltd Film polyester pour des materiaux d'enregistrement magnetique
EP0162788A1 (fr) * 1984-04-03 1985-11-27 Rhone-Poulenc Films Films minces polyester étirés chargés à faible rugosité - procédé d'obtention - utilisation de ces films pour la fabrication de bandes magnétiques

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375494A (en) 1980-03-12 1983-03-01 Imperial Chemical Industries Plc Polyester film composites

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2098216A1 (fr) * 1970-07-07 1972-03-10 Du Pont
US3657180A (en) * 1970-01-08 1972-04-18 Goodyear Tire & Rubber Slip agents for polyester film
US3821156A (en) * 1972-01-03 1974-06-28 Celanese Corp Polyethylene terephthalate film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657180A (en) * 1970-01-08 1972-04-18 Goodyear Tire & Rubber Slip agents for polyester film
FR2098216A1 (fr) * 1970-07-07 1972-03-10 Du Pont
US3821156A (en) * 1972-01-03 1974-06-28 Celanese Corp Polyethylene terephthalate film

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0108593A1 (fr) * 1982-11-02 1984-05-16 Toray Industries, Inc. Pellicule de polyester pour milieu d'enregistrement magnétique
FR2539349A1 (fr) * 1983-01-18 1984-07-20 Diafoil Co Ltd Film polyester pour des materiaux d'enregistrement magnetique
EP0162788A1 (fr) * 1984-04-03 1985-11-27 Rhone-Poulenc Films Films minces polyester étirés chargés à faible rugosité - procédé d'obtention - utilisation de ces films pour la fabrication de bandes magnétiques

Also Published As

Publication number Publication date
GB1547241A (en) 1979-06-06
DE2632094A1 (de) 1977-01-27

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Legal Events

Date Code Title Description
ST Notification of lapse