CA1010309A - Magnetic recording media - Google Patents

Magnetic recording media

Info

Publication number
CA1010309A
CA1010309A CA185,731A CA185731A CA1010309A CA 1010309 A CA1010309 A CA 1010309A CA 185731 A CA185731 A CA 185731A CA 1010309 A CA1010309 A CA 1010309A
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
CA185,731A
Other languages
English (en)
Other versions
CA185731S (en
Inventor
Rudolf Bachmann
Hans-Joerg Hartmann
Herbert Motz
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 CA1010309A publication Critical patent/CA1010309A/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
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes

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)
CA185,731A 1972-11-15 1973-11-14 Magnetic recording media Expired CA1010309A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2255802A DE2255802C3 (de) 1972-11-15 1972-11-15 Schichtmagnetogrammträger

Publications (1)

Publication Number Publication Date
CA1010309A true CA1010309A (en) 1977-05-17

Family

ID=5861711

Family Applications (1)

Application Number Title Priority Date Filing Date
CA185,731A Expired CA1010309A (en) 1972-11-15 1973-11-14 Magnetic recording media

Country Status (7)

Country Link
JP (1) JPS5633774B2 (enrdf_load_stackoverflow)
BE (1) BE807421A (enrdf_load_stackoverflow)
CA (1) CA1010309A (enrdf_load_stackoverflow)
DE (1) DE2255802C3 (enrdf_load_stackoverflow)
FR (1) FR2206547B1 (enrdf_load_stackoverflow)
GB (1) GB1448457A (enrdf_load_stackoverflow)
IT (1) IT996447B (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2442762C2 (de) * 1974-09-06 1983-02-24 Basf Ag, 6700 Ludwigshafen Schichtmagnetogrammträger mit Polyurethanelastomer-Bindemitteln in der Magnetschicht
DE3002164C2 (de) * 1979-01-19 1994-05-05 Minnesota Mining & Mfg Magnetisches Aufzeichnungsmedium aus Feinteilchen in einem Polyurethanblockcopolymer-Bindemittel und Verfahren zu seiner Herstellung
DE3127884A1 (de) * 1981-07-15 1983-02-03 Agfa-Gevaert Ag, 5090 Leverkusen Magnetisches speichermedium
JPS6032142U (ja) * 1983-08-12 1985-03-05 株式会社クボタ 刈取収穫機の前照灯構造
DE3341699A1 (de) * 1983-11-18 1985-05-30 Basf Ag, 6700 Ludwigshafen Magnetische aufzeichnungstraeger
DE3341698A1 (de) * 1983-11-18 1985-05-30 Basf Ag, 6700 Ludwigshafen Magnetische aufzeichnungstraeger

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899411A (en) * 1956-07-30 1959-08-11 Polyurethane elastomers from hy-
DE1130612B (de) * 1961-01-03 1962-05-30 Agfa Ag Verfahren zur Herstellung von schichtfoermigen Magnetspeichern fuer Schall-, Bild- und Impulsaufzeichnung
BE638467A (enrdf_load_stackoverflow) * 1962-10-15 1900-01-01
DE1906548A1 (de) * 1968-02-12 1969-09-18 Fuji Photo Film Co Ltd Magnetisches Aufzeichnungsmedium
DE2101490C3 (de) * 1971-01-14 1978-04-13 Basf Ag, 6700 Ludwigshafen Magnetkarten für die Datenerfassung

Also Published As

Publication number Publication date
BE807421A (fr) 1974-05-16
DE2255802A1 (de) 1974-05-22
IT996447B (it) 1975-12-10
FR2206547B1 (enrdf_load_stackoverflow) 1977-06-03
GB1448457A (en) 1976-09-08
JPS5633774B2 (enrdf_load_stackoverflow) 1981-08-06
DE2255802C3 (de) 1981-10-15
DE2255802B2 (enrdf_load_stackoverflow) 1981-01-22
FR2206547A1 (enrdf_load_stackoverflow) 1974-06-07
JPS4982307A (enrdf_load_stackoverflow) 1974-08-08

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