CA969433A - Magnetic recording media - Google Patents

Magnetic recording media

Info

Publication number
CA969433A
CA969433A CA137,987A CA137987A CA969433A CA 969433 A CA969433 A CA 969433A CA 137987 A CA137987 A CA 137987A CA 969433 A CA969433 A CA 969433A
Authority
CA
Canada
Prior art keywords
magnetic recording
recording media
media
magnetic
recording
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
CA137,987A
Other languages
English (en)
Other versions
CA137987S (en
Inventor
Job-Werner Hartmann
Werner Ostertag
Rudolf Bachmann
Hermann Roller
Harald Frischmann
Ute Neumann
Hans J. Hartmann
Werner K. Balz
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
Badische Anilin and Sodafabrik AG
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 Badische Anilin and Sodafabrik AG filed Critical Badische Anilin and Sodafabrik AG
Application granted granted Critical
Publication of CA969433A publication Critical patent/CA969433A/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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C08L75/06—Polyurethanes from polyesters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
CA137,987A 1971-03-26 1972-03-23 Magnetic recording media Expired CA969433A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712114611 DE2114611A1 (de) 1971-03-26 1971-03-26 Magnetische Aufzeichnungsträger

Publications (1)

Publication Number Publication Date
CA969433A true CA969433A (en) 1975-06-17

Family

ID=5802789

Family Applications (1)

Application Number Title Priority Date Filing Date
CA137,987A Expired CA969433A (en) 1971-03-26 1972-03-23 Magnetic recording media

Country Status (7)

Country Link
BE (1) BE781192A (de)
CA (1) CA969433A (de)
DE (1) DE2114611A1 (de)
FR (1) FR2130654B1 (de)
GB (1) GB1375295A (de)
IT (1) IT952402B (de)
NL (1) NL7203689A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151590A1 (de) 1981-12-28 1983-07-07 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung magnetischer aufzeichnungstraeger
DE3927659A1 (de) * 1989-08-22 1991-02-28 Basf Ag Magnetische aufzeichnungstraeger
US6720025B2 (en) 2002-07-01 2004-04-13 3M Innovative Properties Company Slot extrusion coating methods

Also Published As

Publication number Publication date
FR2130654A1 (de) 1972-11-03
GB1375295A (de) 1974-11-27
NL7203689A (de) 1972-09-28
IT952402B (it) 1973-07-20
FR2130654B1 (de) 1975-04-25
DE2114611A1 (de) 1972-10-05
BE781192A (fr) 1972-09-25

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