CA962139A - Magnetic recording media and a process for their production - Google Patents

Magnetic recording media and a process for their production

Info

Publication number
CA962139A
CA962139A CA156,755A CA156755A CA962139A CA 962139 A CA962139 A CA 962139A CA 156755 A CA156755 A CA 156755A CA 962139 A CA962139 A CA 962139A
Authority
CA
Canada
Prior art keywords
production
magnetic recording
recording media
media
magnetic
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
CA156,755A
Other languages
English (en)
Other versions
CA156755S (en
Inventor
Hans-Joerg Hartmann
Job-Werner Hartmann
Harald Frischmann
Guenter Vaeth
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 CA962139A publication Critical patent/CA962139A/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31565—Next to polyester [polyethylene terephthalate, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31573—Next to addition polymer of ethylenically unsaturated monomer
    • Y10T428/31576—Ester monomer type [polyvinylacetate, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31609—Particulate metal or metal compound-containing
CA156,755A 1971-11-20 1972-11-15 Magnetic recording media and a process for their production Expired CA962139A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2157685A DE2157685C3 (de) 1971-11-20 1971-11-20 Schichtmagnetogrammträger und Verfahren zur Herstellung derselben

Publications (1)

Publication Number Publication Date
CA962139A true CA962139A (en) 1975-02-04

Family

ID=5825696

Family Applications (1)

Application Number Title Priority Date Filing Date
CA156,755A Expired CA962139A (en) 1971-11-20 1972-11-15 Magnetic recording media and a process for their production

Country Status (9)

Country Link
US (1) US3922439A (cs)
JP (1) JPS4860904A (cs)
BE (1) BE791618A (cs)
CA (1) CA962139A (cs)
DE (1) DE2157685C3 (cs)
FR (1) FR2160599B1 (cs)
GB (1) GB1403204A (cs)
IT (1) IT973619B (cs)
NL (1) NL181691C (cs)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5067603A (cs) * 1973-10-17 1975-06-06
JPS5067604A (cs) * 1973-10-17 1975-06-06
JPS5126006A (cs) * 1974-08-28 1976-03-03 Fuji Photo Film Co Ltd
DE2442762C2 (de) * 1974-09-06 1983-02-24 Basf Ag, 6700 Ludwigshafen Schichtmagnetogrammträger mit Polyurethanelastomer-Bindemitteln in der Magnetschicht
JPS6034167B2 (ja) * 1978-09-11 1985-08-07 富士写真フイルム株式会社 磁気記録媒体
JPS56137522A (en) * 1980-03-26 1981-10-27 Fuji Photo Film Co Ltd Magnetic recording material
DE3127884A1 (de) * 1981-07-15 1983-02-03 Agfa-Gevaert Ag, 5090 Leverkusen Magnetisches speichermedium
JPS58114330A (ja) * 1981-12-28 1983-07-07 Denki Kagaku Kogyo Kk 磁気記録媒体用磁性塗料
DE3341698A1 (de) * 1983-11-18 1985-05-30 Basf Ag, 6700 Ludwigshafen Magnetische aufzeichnungstraeger
DE3341699A1 (de) * 1983-11-18 1985-05-30 Basf Ag, 6700 Ludwigshafen Magnetische aufzeichnungstraeger
JP2510904B2 (ja) * 1991-06-21 1996-06-26 コニカ株式会社 磁気記録媒体
US7124466B2 (en) * 2002-02-05 2006-10-24 Seagate Technology Llc Particle capture system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL126092C (cs) * 1962-10-15 1900-01-01
US3574684A (en) * 1965-05-26 1971-04-13 Memorex Corp Polyurethane magnetic coating composition
GB1080614A (en) * 1966-04-21 1967-08-23 Agfa Gevaert Nv Magnetic recording material
FR1580714A (cs) * 1967-09-18 1969-09-05
FR1592812A (cs) * 1968-01-17 1970-05-19
US3499789A (en) * 1968-01-19 1970-03-10 Eastman Kodak Co Magnetic recording element
US3586630A (en) * 1969-05-08 1971-06-22 Du Pont Stabilization of chromium dioxide by organophosphorus compounds
US3649541A (en) * 1969-07-10 1972-03-14 Du Pont Magnetic recording elements containing stabilized chromium dioxide a polyurethane binder and an isocyanate hardening agent
US3650828A (en) * 1969-09-04 1972-03-21 Karex Inc Magnetic coating formulation for recording tape
US3634252A (en) * 1970-06-22 1972-01-11 Du Pont Chromium dioxide recording compositions stabilized with long-chain ammonium salts

Also Published As

Publication number Publication date
US3922439A (en) 1975-11-25
DE2157685A1 (de) 1973-05-24
DE2157685C3 (de) 1983-11-24
NL181691C (nl) 1987-10-01
IT973619B (it) 1974-06-10
FR2160599A1 (cs) 1973-06-29
FR2160599B1 (cs) 1976-06-04
DE2157685B2 (de) 1980-06-12
GB1403204A (en) 1975-08-28
NL7215469A (cs) 1973-05-22
BE791618A (fr) 1973-05-21
NL181691B (nl) 1987-05-04
JPS4860904A (cs) 1973-08-27

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