GB1375119A - - Google Patents

Info

Publication number
GB1375119A
GB1375119A GB1812872A GB1812872A GB1375119A GB 1375119 A GB1375119 A GB 1375119A GB 1812872 A GB1812872 A GB 1812872A GB 1812872 A GB1812872 A GB 1812872A GB 1375119 A GB1375119 A GB 1375119A
Authority
GB
United Kingdom
Prior art keywords
polyester
april
stretching
longitudinally
cro
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
GB1812872A
Other languages
English (en)
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 GB1375119A publication Critical patent/GB1375119A/en
Expired 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
    • G11B5/706—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
    • G11B5/70636—CrO2

Landscapes

  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Magnetic Record Carriers (AREA)
GB1812872A 1971-04-20 1972-04-19 Expired GB1375119A (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2550471 1971-04-20

Publications (1)

Publication Number Publication Date
GB1375119A true GB1375119A (enExample) 1974-11-27

Family

ID=12167882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1812872A Expired GB1375119A (enExample) 1971-04-20 1972-04-19

Country Status (4)

Country Link
DE (1) DE2219363A1 (enExample)
FR (1) FR2133965B1 (enExample)
GB (1) GB1375119A (enExample)
NL (1) NL7205340A (enExample)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501344A (en) * 1967-07-28 1970-03-17 Eastman Kodak Co Magnetic recording tape supported on poly(ethylene 2,6 - naphthalenedicarboxylate)

Also Published As

Publication number Publication date
FR2133965A1 (enExample) 1972-12-01
NL7205340A (enExample) 1972-10-24
FR2133965B1 (enExample) 1976-06-11
DE2219363A1 (de) 1972-12-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee