FR2130407A1 - - Google Patents

Info

Publication number
FR2130407A1
FR2130407A1 FR7209464A FR7209464A FR2130407A1 FR 2130407 A1 FR2130407 A1 FR 2130407A1 FR 7209464 A FR7209464 A FR 7209464A FR 7209464 A FR7209464 A FR 7209464A FR 2130407 A1 FR2130407 A1 FR 2130407A1
Authority
FR
France
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.)
Granted
Application number
FR7209464A
Other languages
French (fr)
Other versions
FR2130407B1 (sv
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.)
Pfizer Inc
Original Assignee
Pfizer Inc
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 Pfizer Inc filed Critical Pfizer Inc
Publication of FR2130407A1 publication Critical patent/FR2130407A1/fr
Application granted granted Critical
Publication of FR2130407B1 publication Critical patent/FR2130407B1/fr
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
    • G11B5/706—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 composition of the magnetic material
    • G11B5/70626—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 composition of the magnetic material containing non-metallic substances
    • G11B5/70642—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 composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70652—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 composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3
    • G11B5/70663—Preparation processes specially adapted therefor, e.g. using stabilising agents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/06—Ferric oxide [Fe2O3]
    • 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
    • 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
    • G11B5/706—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 composition of the magnetic material
    • G11B5/70626—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 composition of the magnetic material containing non-metallic substances
    • G11B5/70642—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 composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70647—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 composition of the magnetic material containing non-metallic substances iron oxides with a skin
    • 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
    • G11B5/706—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 composition of the magnetic material
    • G11B5/70626—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 composition of the magnetic material containing non-metallic substances
    • G11B5/70642—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 composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70652—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 composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/40—Electric properties
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
  • Compounds Of Iron (AREA)
FR7209464A 1971-03-17 1972-03-17 Expired FR2130407B1 (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12533171A 1971-03-17 1971-03-17
US22563672A 1972-02-11 1972-02-11

Publications (2)

Publication Number Publication Date
FR2130407A1 true FR2130407A1 (sv) 1972-11-03
FR2130407B1 FR2130407B1 (sv) 1974-12-13

Family

ID=26823475

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7209464A Expired FR2130407B1 (sv) 1971-03-17 1972-03-17

Country Status (14)

Country Link
JP (1) JPS5549016B1 (sv)
AR (1) AR199878A1 (sv)
AU (1) AU442230B2 (sv)
BE (1) BE780830A (sv)
CA (1) CA980536A (sv)
CH (1) CH547234A (sv)
DE (1) DE2212435C3 (sv)
FI (1) FI54284C (sv)
FR (1) FR2130407B1 (sv)
GB (1) GB1392196A (sv)
IE (1) IE36177B1 (sv)
IT (1) IT957573B (sv)
NL (1) NL167660C (sv)
SE (1) SE389329B (sv)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000749A1 (de) * 1977-08-05 1979-02-21 BASF Aktiengesellschaft Verfahren zur Herstellung von nadelförmigen, ferrimagnetischen Eisenoxiden und deren Verwendung
EP0003100A2 (de) * 1978-01-13 1979-07-25 Bayer Ag Ferrimagnetisches Eisenoxid und Verfahren zu dessen Herstellung
FR2416868A1 (fr) * 1978-02-09 1979-09-07 Basf Ag Procede de preparation d'oxydes de fer ferrimagnetiques aciculaires
EP0028767A1 (de) * 1979-11-09 1981-05-20 BASF Aktiengesellschaft Verfahren zur Herstellung von Gamma-Eisen(III)oxid und seine Verwendung zur Herstellung von magnetischen Aufzeichnungsträgern

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816364U (ja) * 1981-07-25 1983-02-01 株式会社新潟鐵工所 コンクリ−トポンプにおけるタイミング調整装置
DE3224325A1 (de) * 1982-06-30 1984-01-05 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von nadelfoermigen, ferrimagnetischen eisenoxiden
DE3417793A1 (de) * 1984-05-14 1985-11-14 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung feinteiliger, nadelfoermiger und hochkoerzitiver hexagonaler ferrite sowie ihre verwendung zur herstellung magnetischer aufzeichnungstraeger und plastoferrite
DE3516885A1 (de) * 1985-05-10 1986-11-13 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung nadelfoermiger, kobalthaltiger ferrimagnetischer eisenoxide
DE3518481A1 (de) * 1985-05-23 1986-11-27 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung feinteiliger und nadelfoermiger hexagonaler ferrite sowie ihre verwendung zur herstellung magnetischer aufzeichnungstraeger und plastoferrite
CN118125779B (zh) * 2024-05-07 2024-07-02 湖南瑞砂环境科技有限公司 一种基于黄金尾矿的填缝剂及其制备工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1244896A (fr) * 1960-01-11 1960-10-28 C K Williams & Co Procédé d'obtention de poudres d'oxyde de fer ferro-magnétiques notamment pour éléments d'enregistrement magnétiques et poudres et éléments obtenus par ce procédé
US3498748A (en) * 1967-05-18 1970-03-03 Pfizer & Co C Preparation of magnetic ferric oxide

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1244896A (fr) * 1960-01-11 1960-10-28 C K Williams & Co Procédé d'obtention de poudres d'oxyde de fer ferro-magnétiques notamment pour éléments d'enregistrement magnétiques et poudres et éléments obtenus par ce procédé
US3498748A (en) * 1967-05-18 1970-03-03 Pfizer & Co C Preparation of magnetic ferric oxide

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000749A1 (de) * 1977-08-05 1979-02-21 BASF Aktiengesellschaft Verfahren zur Herstellung von nadelförmigen, ferrimagnetischen Eisenoxiden und deren Verwendung
EP0003100A2 (de) * 1978-01-13 1979-07-25 Bayer Ag Ferrimagnetisches Eisenoxid und Verfahren zu dessen Herstellung
EP0003100A3 (en) * 1978-01-13 1979-08-22 Bayer Aktiengesellschaft Ferrimagnetic iron oxide and method of manufacturing the same
FR2416868A1 (fr) * 1978-02-09 1979-09-07 Basf Ag Procede de preparation d'oxydes de fer ferrimagnetiques aciculaires
EP0028767A1 (de) * 1979-11-09 1981-05-20 BASF Aktiengesellschaft Verfahren zur Herstellung von Gamma-Eisen(III)oxid und seine Verwendung zur Herstellung von magnetischen Aufzeichnungsträgern

Also Published As

Publication number Publication date
IE36177B1 (en) 1976-09-01
JPS5549016B1 (sv) 1980-12-09
DE2212435C3 (de) 1978-04-20
AR199878A1 (es) 1974-10-08
NL167660C (nl) 1982-01-18
AU442230B2 (en) 1973-11-01
DE2212435A1 (de) 1972-10-19
NL167660B (nl) 1981-08-17
GB1392196A (en) 1975-04-30
FI54284B (fi) 1978-07-31
IT957573B (it) 1973-10-20
AU4002372A (en) 1973-09-20
NL7203583A (sv) 1972-09-19
SE389329B (sv) 1976-11-01
BE780830A (fr) 1972-09-18
FI54284C (fi) 1978-11-10
FR2130407B1 (sv) 1974-12-13
CH547234A (fr) 1974-03-29
IE36177L (en) 1972-09-17
DE2212435B2 (de) 1977-09-01
CA980536A (en) 1975-12-30

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse