NL181099C - METHOD FOR PREPARING ACICULAR GAMMA IRON (III) OXIDE, AND MAGNETIC REGISTRATION BEARERS, WHETHER OR PARTIALLY PROVIDED WITH A LOW IRON OXIDE, OBTAINED BY THIS PROCESS. - Google Patents
METHOD FOR PREPARING ACICULAR GAMMA IRON (III) OXIDE, AND MAGNETIC REGISTRATION BEARERS, WHETHER OR PARTIALLY PROVIDED WITH A LOW IRON OXIDE, OBTAINED BY THIS PROCESS.Info
- Publication number
- NL181099C NL181099C NL7413657A NL7413657A NL181099C NL 181099 C NL181099 C NL 181099C NL 7413657 A NL7413657 A NL 7413657A NL 7413657 A NL7413657 A NL 7413657A NL 181099 C NL181099 C NL 181099C
- Authority
- NL
- Netherlands
- Prior art keywords
- oxide
- bearers
- iii
- partially provided
- iron
- Prior art date
Links
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 title 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title 1
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
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
- C01P2002/52—Solid solutions containing elements as dopants
- C01P2002/54—Solid solutions containing elements as dopants one element only
-
- 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
- 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)
- Compounds Of Iron (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732352440 DE2352440C2 (en) | 1973-10-19 | 1973-10-19 | Process for the production of γ-ferric oxide |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7413657A NL7413657A (en) | 1975-04-22 |
NL181099B NL181099B (en) | 1987-01-16 |
NL181099C true NL181099C (en) | 1987-06-16 |
Family
ID=5895848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7413657A NL181099C (en) | 1973-10-19 | 1974-10-17 | METHOD FOR PREPARING ACICULAR GAMMA IRON (III) OXIDE, AND MAGNETIC REGISTRATION BEARERS, WHETHER OR PARTIALLY PROVIDED WITH A LOW IRON OXIDE, OBTAINED BY THIS PROCESS. |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5719057B2 (en) |
DE (1) | DE2352440C2 (en) |
GB (1) | GB1482162A (en) |
NL (1) | NL181099C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT345252B (en) * | 1975-10-31 | 1978-09-11 | Unibra Sa | METHOD FOR MANUFACTURING MAGNETOXIDS |
DE2903593C3 (en) * | 1979-01-31 | 1982-05-06 | Bayer Ag, 5090 Leverkusen | Cobalt-doped ferrimagnetic iron oxides and processes for their production |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE658894A (en) * | 1964-01-30 |
-
1973
- 1973-10-19 DE DE19732352440 patent/DE2352440C2/en not_active Expired
-
1974
- 1974-10-17 NL NL7413657A patent/NL181099C/en not_active IP Right Cessation
- 1974-10-18 GB GB4518474A patent/GB1482162A/en not_active Expired
- 1974-10-19 JP JP11991074A patent/JPS5719057B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2352440A1 (en) | 1975-04-30 |
GB1482162A (en) | 1977-08-10 |
DE2352440C2 (en) | 1983-11-03 |
NL181099B (en) | 1987-01-16 |
NL7413657A (en) | 1975-04-22 |
JPS5719057B2 (en) | 1982-04-20 |
JPS50112300A (en) | 1975-09-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
A85 | Still pending on 85-01-01 | ||
V1 | Lapsed because of non-payment of the annual fee |