FR2198201A1 - - Google Patents

Info

Publication number
FR2198201A1
FR2198201A1 FR7331406A FR7331406A FR2198201A1 FR 2198201 A1 FR2198201 A1 FR 2198201A1 FR 7331406 A FR7331406 A FR 7331406A FR 7331406 A FR7331406 A FR 7331406A FR 2198201 A1 FR2198201 A1 FR 2198201A1
Authority
FR
France
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.)
Granted
Application number
FR7331406A
Other languages
French (fr)
Other versions
FR2198201B1 (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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of FR2198201A1 publication Critical patent/FR2198201A1/fr
Application granted granted Critical
Publication of FR2198201B1 publication Critical patent/FR2198201B1/fr
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
    • G11B5/7021—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 containing a polyurethane or a polyisocyanate
    • G11B5/7022—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 containing a polyurethane or a polyisocyanate containing mixtures of polyurethanes or polyisocyanates with other polymers
    • 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
FR7331406A 1972-08-30 1973-08-30 Expired FR2198201B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2242499A DE2242499C3 (en) 1972-08-30 1972-08-30 Process for the production of flexible sheet magnetogram carriers

Publications (2)

Publication Number Publication Date
FR2198201A1 true FR2198201A1 (en) 1974-03-29
FR2198201B1 FR2198201B1 (en) 1977-05-13

Family

ID=5854917

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7331406A Expired FR2198201B1 (en) 1972-08-30 1973-08-30

Country Status (6)

Country Link
CA (1) CA995068A (en)
DE (1) DE2242499C3 (en)
FR (1) FR2198201B1 (en)
GB (1) GB1445152A (en)
IT (1) IT990349B (en)
NL (1) NL185313C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0762892B2 (en) * 1984-06-08 1995-07-05 ティーディーケイ株式会社 Magnetic recording medium for image recording

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE648891A (en) * 1963-09-13 1964-10-01
US3215554A (en) * 1962-01-22 1965-11-02 Gevert Photo Producten N V Subbing layer for magnetic recording materials
FR2000538A1 (en) * 1968-01-22 1969-09-12 Usm Corp
FR2038967A5 (en) * 1969-03-14 1971-01-08 Dunlop Co Ltd

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1006140A (en) * 1963-07-26 1965-09-29 Gevaert Photo Prod Nv Magnetic recording medium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215554A (en) * 1962-01-22 1965-11-02 Gevert Photo Producten N V Subbing layer for magnetic recording materials
BE648891A (en) * 1963-09-13 1964-10-01
FR2000538A1 (en) * 1968-01-22 1969-09-12 Usm Corp
FR2038967A5 (en) * 1969-03-14 1971-01-08 Dunlop Co Ltd

Also Published As

Publication number Publication date
DE2242499B2 (en) 1980-11-13
DE2242499A1 (en) 1974-03-07
DE2242499C3 (en) 1981-08-20
NL185313C (en) 1990-03-01
NL185313B (en) 1989-10-02
FR2198201B1 (en) 1977-05-13
CA995068A (en) 1976-08-17
GB1445152A (en) 1976-08-04
NL7311836A (en) 1974-03-04
IT990349B (en) 1975-06-20

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Legal Events

Date Code Title Description
ST Notification of lapse