GB1347269A - Magnetic storage material - Google Patents

Magnetic storage material

Info

Publication number
GB1347269A
GB1347269A GB1364371A GB1364371A GB1347269A GB 1347269 A GB1347269 A GB 1347269A GB 1364371 A GB1364371 A GB 1364371A GB 1364371 A GB1364371 A GB 1364371A GB 1347269 A GB1347269 A GB 1347269A
Authority
GB
United Kingdom
Prior art keywords
reaction product
isocyanate
urethane
methyl isocyanate
acetate
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
GB1364371A
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert 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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1347269A publication Critical patent/GB1347269A/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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/71—Monoisocyanates or monoisothiocyanates
    • C08G18/711—Monoisocyanates or monoisothiocyanates containing oxygen in addition to isocyanate oxygen

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)
GB1364371A 1970-05-12 1971-05-07 Magnetic storage material Expired GB1347269A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702023072 DE2023072A1 (de) 1970-05-12 1970-05-12 Magnetisches Aufzeichnungsmedium

Publications (1)

Publication Number Publication Date
GB1347269A true GB1347269A (en) 1974-02-27

Family

ID=5770849

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1364371A Expired GB1347269A (en) 1970-05-12 1971-05-07 Magnetic storage material

Country Status (4)

Country Link
BE (1) BE766904A (de)
DE (1) DE2023072A1 (de)
FR (1) FR2091526A5 (de)
GB (1) GB1347269A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5128223B2 (de) * 1972-04-24 1976-08-18
JPS5677926A (en) * 1979-11-28 1981-06-26 Tdk Corp Magnetic recording medium using cobalt adhesion type iron oxide
EP0047796B1 (de) * 1980-09-15 1983-12-14 Firma Carl Freudenberg Wundauflage aus hydrophoben Fasern

Also Published As

Publication number Publication date
DE2023072A1 (de) 1971-12-02
FR2091526A5 (de) 1972-01-14
BE766904A (nl) 1971-11-10

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Legal Events

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