AR199878A1 - SYNTHETIC FERRIC OXIDE MAGNETIC RANGE BASED ON SYNTHETIC LEPIDOCROCYTE - Google Patents

SYNTHETIC FERRIC OXIDE MAGNETIC RANGE BASED ON SYNTHETIC LEPIDOCROCYTE

Info

Publication number
AR199878A1
AR199878A1 AR24097472A AR24097472A AR199878A1 AR 199878 A1 AR199878 A1 AR 199878A1 AR 24097472 A AR24097472 A AR 24097472A AR 24097472 A AR24097472 A AR 24097472A AR 199878 A1 AR199878 A1 AR 199878A1
Authority
AR
Argentina
Prior art keywords
synthetic
lepidocrocyte
ferric oxide
range based
oxide magnetic
Prior art date
Application number
AR24097472A
Other languages
Spanish (es)
Original Assignee
Pfizer
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 filed Critical Pfizer
Application granted granted Critical
Publication of AR199878A1 publication Critical patent/AR199878A1/en

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)
AR24097472A 1971-03-17 1972-03-16 SYNTHETIC FERRIC OXIDE MAGNETIC RANGE BASED ON SYNTHETIC LEPIDOCROCYTE AR199878A1 (en)

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 (1)

Publication Number Publication Date
AR199878A1 true AR199878A1 (en) 1974-10-08

Family

ID=26823475

Family Applications (1)

Application Number Title Priority Date Filing Date
AR24097472A AR199878A1 (en) 1971-03-17 1972-03-16 SYNTHETIC FERRIC OXIDE MAGNETIC RANGE BASED ON SYNTHETIC LEPIDOCROCYTE

Country Status (14)

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

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2735316C3 (en) * 1977-08-05 1981-01-29 Basf Ag, 6700 Ludwigshafen Process for the production of acicular, ferrimagnetic iron oxides
DE2801395C2 (en) * 1978-01-13 1982-04-22 Bayer Ag, 5090 Leverkusen Thermally stabilized ferrimagnetic iron oxide
DE2805405A1 (en) * 1978-02-09 1979-08-16 Basf Ag PROCESS FOR THE PRODUCTION OF NEEDLE-SHAPED FERRIMAGNETIC IRON OXIDES
DE2945203A1 (en) * 1979-11-09 1981-06-04 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING (GAMMA) IRON (III) OXIDE
JPS5816364U (en) * 1981-07-25 1983-02-01 株式会社新潟鐵工所 Timing adjustment device for concrete pumps
DE3224325A1 (en) * 1982-06-30 1984-01-05 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING NEEDLE-SHAPED, FERRIMAGNETIC IRON OXIDES
DE3417793A1 (en) * 1984-05-14 1985-11-14 Basf Ag, 6700 Ludwigshafen METHOD FOR THE PRODUCTION OF FINE-PARTIC, NEEDLE-SHAPED AND HIGH-CERCITIVE HEXAGONAL FERRITES AND THEIR USE FOR THE PRODUCTION OF MAGNETIC RECORDING CARRIERS AND PLASTOFERRITE
DE3516885A1 (en) * 1985-05-10 1986-11-13 Basf Ag, 6700 Ludwigshafen METHOD FOR THE PRODUCTION OF NEEDLE-SHAPED, COBAL-CONTAINING FERRIMAGNETIC IRON OXIDS
DE3518481A1 (en) * 1985-05-23 1986-11-27 Basf Ag, 6700 Ludwigshafen METHOD FOR THE PRODUCTION OF FINE-PARTIC AND NEEDLE-SHAPED HEXAGONAL FERRITES AND THEIR USE FOR THE PRODUCTION OF MAGNETIC RECORDING CARRIERS AND PLASTOFERRITE
CN118125779B (en) * 2024-05-07 2024-07-02 湖南瑞砂环境科技有限公司 Gap filler based on gold tailings and preparation process thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1244896A (en) * 1960-01-11 1960-10-28 C K Williams & Co Process for obtaining ferro-magnetic iron oxide powders, in particular for magnetic recording elements and powders and elements obtained by this process
US3498748A (en) * 1967-05-18 1970-03-03 Pfizer & Co C Preparation of magnetic ferric oxide

Also Published As

Publication number Publication date
IE36177B1 (en) 1976-09-01
JPS5549016B1 (en) 1980-12-09
DE2212435C3 (en) 1978-04-20
NL167660C (en) 1982-01-18
AU442230B2 (en) 1973-11-01
DE2212435A1 (en) 1972-10-19
NL167660B (en) 1981-08-17
GB1392196A (en) 1975-04-30
FI54284B (en) 1978-07-31
IT957573B (en) 1973-10-20
AU4002372A (en) 1973-09-20
NL7203583A (en) 1972-09-19
SE389329B (en) 1976-11-01
BE780830A (en) 1972-09-18
FI54284C (en) 1978-11-10
FR2130407B1 (en) 1974-12-13
CH547234A (en) 1974-03-29
FR2130407A1 (en) 1972-11-03
IE36177L (en) 1972-09-17
DE2212435B2 (en) 1977-09-01
CA980536A (en) 1975-12-30

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