NL167660C - Werkwijze voor het bereiden van gamma-ijzer(iii)-oxyde alsmede onder toepassing van aldus bereid gamma-ijzer(iii)-oxyde vervaardigd gevormd voortbrengsel. - Google Patents

Werkwijze voor het bereiden van gamma-ijzer(iii)-oxyde alsmede onder toepassing van aldus bereid gamma-ijzer(iii)-oxyde vervaardigd gevormd voortbrengsel.

Info

Publication number
NL167660C
NL167660C NL7203583A NL7203583A NL167660C NL 167660 C NL167660 C NL 167660C NL 7203583 A NL7203583 A NL 7203583A NL 7203583 A NL7203583 A NL 7203583A NL 167660 C NL167660 C NL 167660C
Authority
NL
Netherlands
Prior art keywords
iii
oxide
gamma iron
formed product
preparing
Prior art date
Application number
NL7203583A
Other languages
English (en)
Dutch (nl)
Other versions
NL7203583A (es
NL167660B (nl
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
Publication of NL7203583A publication Critical patent/NL7203583A/xx
Publication of NL167660B publication Critical patent/NL167660B/xx
Application granted granted Critical
Publication of NL167660C publication Critical patent/NL167660C/xx

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)
  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
NL7203583A 1971-03-17 1972-03-17 Werkwijze voor het bereiden van gamma-ijzer(iii)-oxyde alsmede onder toepassing van aldus bereid gamma-ijzer(iii)-oxyde vervaardigd gevormd voortbrengsel. NL167660C (nl)

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 (3)

Publication Number Publication Date
NL7203583A NL7203583A (es) 1972-09-19
NL167660B NL167660B (nl) 1981-08-17
NL167660C true NL167660C (nl) 1982-01-18

Family

ID=26823475

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7203583A NL167660C (nl) 1971-03-17 1972-03-17 Werkwijze voor het bereiden van gamma-ijzer(iii)-oxyde alsmede onder toepassing van aldus bereid gamma-ijzer(iii)-oxyde vervaardigd gevormd voortbrengsel.

Country Status (14)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2735316C3 (de) * 1977-08-05 1981-01-29 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von nadeiförmigen, ferrimagnetischen Eisenoxiden
DE2801395C2 (de) * 1978-01-13 1982-04-22 Bayer Ag, 5090 Leverkusen Thermisch stabilisiertes ferrimagnetisches Eisenoxid
DE2805405A1 (de) * 1978-02-09 1979-08-16 Basf Ag Verfahren zur herstellung von nadelfoermigen, ferrimagnetischen eisenoxiden
DE2945203A1 (de) * 1979-11-09 1981-06-04 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von (gamma)-eisen (iii) oxid
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

Family Cites Families (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

Also Published As

Publication number Publication date
IE36177L (en) 1972-09-17
IE36177B1 (en) 1976-09-01
AR199878A1 (es) 1974-10-08
NL7203583A (es) 1972-09-19
DE2212435B2 (de) 1977-09-01
DE2212435A1 (de) 1972-10-19
FR2130407B1 (es) 1974-12-13
GB1392196A (en) 1975-04-30
FR2130407A1 (es) 1972-11-03
CH547234A (fr) 1974-03-29
SE389329B (sv) 1976-11-01
FI54284B (fi) 1978-07-31
FI54284C (fi) 1978-11-10
CA980536A (en) 1975-12-30
AU442230B2 (en) 1973-11-01
NL167660B (nl) 1981-08-17
JPS5549016B1 (es) 1980-12-09
DE2212435C3 (de) 1978-04-20
IT957573B (it) 1973-10-20
AU4002372A (en) 1973-09-20
BE780830A (fr) 1972-09-18

Similar Documents

Publication Publication Date Title
NL176468C (nl) Werkwijze voor het bereiden van polyetherimiden en gevormde voortbrengsels daarmee vervaardigd.
NL7506036A (nl) Werkwijze voor het bereiden van dieetpreparaten.
NL162072C (nl) Werkwijze voor het bereiden van pijnstillende, anti- -narcotische geneesmiddelen, aldus verkregen gevormde geneesmiddelen,alsmede werkwijze voor het bereiden van daarvoor geschikte actieve stoffen.
NL7509667A (nl) Enzyme-preparaten, alsmede werkwijze voor het bereiden van zodanige preparaten.
NL178327C (nl) Werkwijze voor het bereiden van gefluoreerde verbindingen alsmede gevormde voortbrengselen die met aldus bereide verbindingen zijn behandeld.
NL159293B (nl) Werkwijze voor het bereiden van kleine capsules en de aldus verkregen capsules.
NL167660C (nl) Werkwijze voor het bereiden van gamma-ijzer(iii)-oxyde alsmede onder toepassing van aldus bereid gamma-ijzer(iii)-oxyde vervaardigd gevormd voortbrengsel.
NL172047C (nl) Werkwijze ter bereiding van met arseen gedoteerd seleen, alsmede voorwerpen vervaardigd onder toepassen van het met arseen gedoteerde seleen.
NL7411498A (nl) Werkwijze en inrichting voor het bereiden van infuusdranken.
NL157798B (nl) Werkwijze voor het bereiden van een roentgencontrastmiddel, alsmede gevormd roentgencontrastmiddel verkregen onder toepassing daarvan.
NL7508073A (nl) Werkwijze voor het bereiden van fungicide preparaten alsmede aldus verkregen gevormde preparaten.
NL7401406A (nl) Werkwijze en inrichting voor het bereiden van s.
NL174221C (nl) Werkwijze voor het bereiden van een tandcement en werkwijze voor het bereiden van een daarvoor geschikte component.
NL170409C (nl) Verbeterde werkwijze voor het bereiden van dimethyltereftalaat.
NL7501309A (nl) Werkwijze en inrichting voor het bereiden van .
NL7514241A (nl) Desacyl-pepsidine alsmede werkwijze voor het bereiden daarvan.
NL178315C (nl) Werkwijze voor het bereiden van nitroaminofenylethers.
NL175827C (nl) Werkwijze voor het bereiden van alfa-(5-indanyloxycarbonyl)-benzylpenicilline en van farmaceutische preparaten daaruit.
NL7505460A (nl) Werkwijzen voor het bereiden en toepassen van heterocyclische verbindingen.
NL7511178A (nl) Werkwijzen voor het bereiden en toepassen van heterocyclische verbindingen.
NL156051B (nl) Werkwijze voor het bereiden van streptokinase en plasminogeen houdende preparaten.
NL7504330A (nl) Werkwijzen voor het bereiden en toepassen van heterocyclische verbindingen.
NL177685C (nl) Werkwijze voor het bereiden van azinen.
NL176255C (nl) Werkwijze voor het bereiden van peptiden.
NL7507370A (nl) Werkwijze voor het bereiden van nieuwe geneesmid- delen en gevormde geneesmiddelen.

Legal Events

Date Code Title Description
SNR Assignments of patents or rights arising from examined patent applications

Owner name: PFIZER PIGMENTS INC.

V1 Lapsed because of non-payment of the annual fee