DE2512450C3 - Schichtmagnetogrammträger - Google Patents

Schichtmagnetogrammträger

Info

Publication number
DE2512450C3
DE2512450C3 DE2512450A DE2512450A DE2512450C3 DE 2512450 C3 DE2512450 C3 DE 2512450C3 DE 2512450 A DE2512450 A DE 2512450A DE 2512450 A DE2512450 A DE 2512450A DE 2512450 C3 DE2512450 C3 DE 2512450C3
Authority
DE
Germany
Prior art keywords
parts
magnetic
silica
magnetic layer
particles
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
DE2512450A
Other languages
German (de)
English (en)
Other versions
DE2512450A1 (de
DE2512450B2 (de
Inventor
Dieter Dipl.-Chem. Dr. Schaefer
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
Priority to DE2512450A priority Critical patent/DE2512450C3/de
Priority to US05/664,644 priority patent/US4074002A/en
Priority to FR7608101A priority patent/FR2304980A1/fr
Priority to GB11104/76A priority patent/GB1536225A/en
Publication of DE2512450A1 publication Critical patent/DE2512450A1/de
Publication of DE2512450B2 publication Critical patent/DE2512450B2/de
Application granted granted Critical
Publication of DE2512450C3 publication Critical patent/DE2512450C3/de
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
    • G11B5/708—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 addition of non-magnetic particles to the layer
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/259—Silicic material

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Lubricants (AREA)
DE2512450A 1975-03-21 1975-03-21 Schichtmagnetogrammträger Expired DE2512450C3 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE2512450A DE2512450C3 (de) 1975-03-21 1975-03-21 Schichtmagnetogrammträger
US05/664,644 US4074002A (en) 1975-03-21 1976-03-08 Magnetic recording media having a low coefficient of friction
FR7608101A FR2304980A1 (fr) 1975-03-21 1976-03-19 Support d'enregistrement magnetique a bande, presentant des caracteristiques de frottement ameliorees
GB11104/76A GB1536225A (en) 1975-03-21 1976-03-19 Magnetic recording media having a low coefficient of friction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2512450A DE2512450C3 (de) 1975-03-21 1975-03-21 Schichtmagnetogrammträger

Publications (3)

Publication Number Publication Date
DE2512450A1 DE2512450A1 (de) 1976-10-07
DE2512450B2 DE2512450B2 (de) 1980-12-04
DE2512450C3 true DE2512450C3 (de) 1981-11-12

Family

ID=5942034

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2512450A Expired DE2512450C3 (de) 1975-03-21 1975-03-21 Schichtmagnetogrammträger

Country Status (4)

Country Link
US (1) US4074002A (enExample)
DE (1) DE2512450C3 (enExample)
FR (1) FR2304980A1 (enExample)
GB (1) GB1536225A (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044805B2 (ja) * 1976-08-27 1985-10-05 日本ビクター株式会社 磁気記録媒体の製造方法
JPS5555439A (en) * 1978-10-18 1980-04-23 Hitachi Ltd Magnetic recording medium composite
JPS5923009B2 (ja) * 1979-06-26 1984-05-30 日本ビクター株式会社 磁気記録媒体
JPS56143531A (en) * 1980-04-10 1981-11-09 Fuji Photo Film Co Ltd Magnetic recording medium
US4328935A (en) * 1980-06-12 1982-05-11 Minnesota Mining And Manufacturing Company Flexible magnetic recording tape having low-friction backside coating
JPS5763804A (en) * 1980-10-07 1982-04-17 Tdk Corp Magnetic recording medium
DE3149764A1 (de) * 1981-12-16 1983-06-23 Agfa-Gevaert Ag, 5090 Leverkusen Magnetisches speichermedium
EP0180651B1 (de) * 1984-10-31 1988-09-07 Ibm Deutschland Gmbh Magnetplatte und Verfahren zu ihrer Herstellung
US5965194A (en) * 1992-01-10 1999-10-12 Imation Corp. Magnetic recording media prepared from magnetic particles having an extremely thin, continuous, amorphous, aluminum hydrous oxide coating
DE4216847A1 (de) * 1992-05-21 1993-11-25 Basf Magnetics Gmbh Flexible magnetische Aufzeichnungsträger mit Rückschicht
JP2011048878A (ja) * 2009-08-27 2011-03-10 Fujifilm Corp 磁気記録媒体およびその製造方法
JP5204249B2 (ja) * 2011-01-27 2013-06-05 富士フイルム株式会社 磁気テープ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1530888A (fr) * 1966-07-08 1968-06-28 Du Pont Rubans magnétiques munis d'une couche de revêtement contenant de la silice
JPS5515771B1 (enExample) * 1967-01-12 1980-04-25
US3833412A (en) * 1967-08-24 1974-09-03 Fuji Photo Film Co Ltd Magnetic recording medium
DE1929171C3 (de) * 1969-06-09 1979-06-07 Basf Ag, 6700 Ludwigshafen Schichtmagnetogrammträger
GB1342797A (en) * 1970-06-08 1974-01-03 Ibm Magnetic recording medium method of and device for enhancing marine navigational sound signals in teh
US3843404A (en) * 1970-06-08 1974-10-22 Ibm Magnetic recording coating

Also Published As

Publication number Publication date
DE2512450A1 (de) 1976-10-07
FR2304980A1 (fr) 1976-10-15
FR2304980B1 (enExample) 1979-08-31
DE2512450B2 (de) 1980-12-04
GB1536225A (en) 1978-12-20
US4074002A (en) 1978-02-14

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Legal Events

Date Code Title Description
OD Request for examination
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee