GB1375670A - - Google Patents

Info

Publication number
GB1375670A
GB1375670A GB212474A GB212474A GB1375670A GB 1375670 A GB1375670 A GB 1375670A GB 212474 A GB212474 A GB 212474A GB 212474 A GB212474 A GB 212474A GB 1375670 A GB1375670 A GB 1375670A
Authority
GB
United Kingdom
Prior art keywords
polymer
layer
discrete particles
polyethylene
june
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
GB212474A
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 GB1375670A publication Critical patent/GB1375670A/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
    • G11B5/73—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
    • G11B5/73931—Two or more layers, at least one layer being polyester

Landscapes

  • Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)
GB212474A 1971-06-21 1972-06-20 Expired GB1375670A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15535371A 1971-06-21 1971-06-21

Publications (1)

Publication Number Publication Date
GB1375670A true GB1375670A (ja) 1974-11-27

Family

ID=22555101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB212474A Expired GB1375670A (ja) 1971-06-21 1972-06-20

Country Status (3)

Country Link
BR (1) BR7204004D0 (ja)
GB (1) GB1375670A (ja)
SU (1) SU568401A3 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118193A (en) * 1982-03-26 1983-10-26 Anic Spa Polycarbonate-based thermoplastic polymer blends

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118193A (en) * 1982-03-26 1983-10-26 Anic Spa Polycarbonate-based thermoplastic polymer blends

Also Published As

Publication number Publication date
SU568401A3 (ru) 1977-08-05
BR7204004D0 (pt) 1973-06-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee