CA995068A - Manufacture of flexible magnetic recording media - Google Patents

Manufacture of flexible magnetic recording media

Info

Publication number
CA995068A
CA995068A CA179,850A CA179850A CA995068A CA 995068 A CA995068 A CA 995068A CA 179850 A CA179850 A CA 179850A CA 995068 A CA995068 A CA 995068A
Authority
CA
Canada
Prior art keywords
manufacture
magnetic recording
recording media
flexible magnetic
flexible
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
CA179,850A
Other languages
English (en)
Other versions
CA179850S (en
Inventor
Hermann Roller
Heinz Stritzinger
Hans J. Hartmann
Job W. Hartmann
Roland Falk
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
Application granted granted Critical
Publication of CA995068A publication Critical patent/CA995068A/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
    • G11B5/7021—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
CA179,850A 1972-08-30 1973-08-28 Manufacture of flexible magnetic recording media Expired CA995068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2242499A DE2242499C3 (de) 1972-08-30 1972-08-30 Verfahren zum Herstellen von flexiblen Schichtmagnetogrammträgern

Publications (1)

Publication Number Publication Date
CA995068A true CA995068A (en) 1976-08-17

Family

ID=5854917

Family Applications (1)

Application Number Title Priority Date Filing Date
CA179,850A Expired CA995068A (en) 1972-08-30 1973-08-28 Manufacture of flexible magnetic recording media

Country Status (6)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0762892B2 (ja) * 1984-06-08 1995-07-05 ティーディーケイ株式会社 画像記録用磁気記録媒体

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE617295A (nl) * 1962-01-22 1962-10-29 Gevaert Photo Prod Nv Magnetisch registreermateriaal.
GB1006140A (en) * 1963-07-26 1965-09-29 Gevaert Photo Prod Nv Magnetic recording medium
NL131590C (cs) * 1963-09-13 1900-01-01
US3493567A (en) * 1968-01-22 1970-02-03 Dart Ind Inc Substituted diazocinophenothiazines
GB1305392A (cs) * 1969-03-14 1973-01-31

Also Published As

Publication number Publication date
FR2198201A1 (cs) 1974-03-29
NL7311836A (cs) 1974-03-04
DE2242499B2 (de) 1980-11-13
NL185313B (nl) 1989-10-02
DE2242499C3 (de) 1981-08-20
GB1445152A (en) 1976-08-04
IT990349B (it) 1975-06-20
FR2198201B1 (cs) 1977-05-13
DE2242499A1 (de) 1974-03-07
NL185313C (nl) 1990-03-01

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