GB1431854A - Magnetic recording media and methods of making them - Google Patents

Magnetic recording media and methods of making them

Info

Publication number
GB1431854A
GB1431854A GB1636573A GB1636573A GB1431854A GB 1431854 A GB1431854 A GB 1431854A GB 1636573 A GB1636573 A GB 1636573A GB 1636573 A GB1636573 A GB 1636573A GB 1431854 A GB1431854 A GB 1431854A
Authority
GB
United Kingdom
Prior art keywords
thermoplastic polymer
magnetic recording
powder
recording media
milimicrons
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
GB1636573A
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.)
Sony Corp
Original Assignee
Sony 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 JP3557772A external-priority patent/JPS5119971B2/ja
Priority claimed from JP3557672A external-priority patent/JPS5137002B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Publication of GB1431854A publication Critical patent/GB1431854A/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
    • G11B5/702—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 bonding agent
    • G11B5/7028—Additives, e.g. crosslinking agents
    • 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
    • G11B5/7013—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 dispersing agent

Landscapes

  • Paints Or Removers (AREA)
GB1636573A 1972-04-07 1973-04-05 Magnetic recording media and methods of making them Expired GB1431854A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3557772A JPS5119971B2 (de) 1972-04-07 1972-04-07
JP3557672A JPS5137002B2 (de) 1972-04-07 1972-04-07

Publications (1)

Publication Number Publication Date
GB1431854A true GB1431854A (en) 1976-04-14

Family

ID=26374567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1636573A Expired GB1431854A (en) 1972-04-07 1973-04-05 Magnetic recording media and methods of making them

Country Status (6)

Country Link
CA (1) CA1042277A (de)
DE (1) DE2317409C3 (de)
FR (1) FR2181874B1 (de)
GB (1) GB1431854A (de)
IT (1) IT983703B (de)
NL (1) NL7304945A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4603080A (en) * 1983-10-19 1986-07-29 Victor Company Of Japan, Limited Magnetic recording media comprising fine particles of organosilica gel in the magnetic recording layer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1167408A (en) * 1980-09-22 1984-05-15 Hao-Jan Chang Electron beam curing of magnetic media
DE3473958D1 (en) * 1984-10-31 1988-10-13 Ibm Deutschland Magnetic disc and process for producing it

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404997A (en) * 1965-05-10 1968-10-08 Ampex Magnetic recording media
US3412044A (en) * 1965-06-03 1968-11-19 Ampex Diamine soap as dispersant in magnetic tape formulations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4603080A (en) * 1983-10-19 1986-07-29 Victor Company Of Japan, Limited Magnetic recording media comprising fine particles of organosilica gel in the magnetic recording layer

Also Published As

Publication number Publication date
FR2181874B1 (de) 1977-02-18
DE2317409A1 (de) 1973-10-11
IT983703B (it) 1974-11-11
NL7304945A (de) 1973-10-09
DE2317409C3 (de) 1981-11-12
FR2181874A1 (de) 1973-12-07
CA1042277A (en) 1978-11-14
DE2317409B2 (de) 1980-11-20

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Legal Events

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