IT1143591B - Procedimento per produrre pigmenti di elevata densita' di ossido di ferro,in particolare per la registrazione magnetica - Google Patents
Procedimento per produrre pigmenti di elevata densita' di ossido di ferro,in particolare per la registrazione magneticaInfo
- Publication number
- IT1143591B IT1143591B IT50410/77A IT5041077A IT1143591B IT 1143591 B IT1143591 B IT 1143591B IT 50410/77 A IT50410/77 A IT 50410/77A IT 5041077 A IT5041077 A IT 5041077A IT 1143591 B IT1143591 B IT 1143591B
- Authority
- IT
- Italy
- Prior art keywords
- procedure
- high density
- iron oxide
- producing high
- oxide pigments
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/22—Compounds of iron
- C09C1/24—Oxides of iron
-
- 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
-
- 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
- G11B5/70668—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 containing a dopant
- G11B5/70673—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 containing a dopant containing Co
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/30—Three-dimensional structures
-
- 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)
- Compounds Of Iron (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Hard Magnetic Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2633597A DE2633597C2 (de) | 1976-07-27 | 1976-07-27 | Verfahren zur Herstellung von nadel- bis prismenförmigen ferrimagnetischen Eisenoxidpigmenten zur magnetischen Signalaufzeichnung |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1143591B true IT1143591B (it) | 1986-10-22 |
Family
ID=5983991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT50410/77A IT1143591B (it) | 1976-07-27 | 1977-07-25 | Procedimento per produrre pigmenti di elevata densita' di ossido di ferro,in particolare per la registrazione magnetica |
Country Status (8)
Country | Link |
---|---|
US (1) | US4140539A (it) |
JP (1) | JPS5314736A (it) |
BE (1) | BE857184A (it) |
DE (1) | DE2633597C2 (it) |
FR (1) | FR2359884A1 (it) |
GB (1) | GB1538040A (it) |
IT (1) | IT1143591B (it) |
NL (1) | NL183993C (it) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2904491A1 (de) * | 1979-02-07 | 1980-08-21 | Bayer Ag | Plaettchenfoermige eisenoxidpigmente und verfahren zu deren herstellung sowie deren verwendung |
NL7901438A (nl) * | 1979-02-23 | 1980-08-26 | Philips Nv | Werkwijze voor de bereiding van een feooh pigment. |
DE2909480A1 (de) * | 1979-03-10 | 1980-09-11 | Bayer Ag | Ferromagnetisches, im wesentlichen aus eisen bestehendes metallpigment und verfahren zu dessen herstellung |
JPS5917050B2 (ja) * | 1979-05-30 | 1984-04-19 | チタン工業株式会社 | 黄色酸化鉄顔料の耐熱性改善方法 |
JPS55158131A (en) * | 1979-05-30 | 1980-12-09 | Titan Kogyo Kk | Heat-resistant yellow iron oxide pigment and its manufacture |
US4291010A (en) * | 1979-09-05 | 1981-09-22 | Titan Kogyo Kabushiki Kaisha | Heat stable yellow iron oxides |
DE3001438C2 (de) * | 1980-01-16 | 1984-05-17 | Shiseido Co. Ltd., Tokyo | Kosmetisches Mittel |
US4514216A (en) * | 1983-04-30 | 1985-04-30 | Toda Kogyo Corp. | Acicular ferromagnetic alloy particles for magnetic recording and process for producing the same |
DE3432224A1 (de) * | 1984-09-01 | 1986-03-13 | Bayer Ag, 5090 Leverkusen | Hoeherkoerzitive isometrische eisenoxide, verfahren zu ihrer herstellung sowie deren verwendung |
DE3819626A1 (de) * | 1988-06-09 | 1989-12-14 | Bayer Ag | Thermostabile zinkferrit-farbpigmente, verfahren zu ihrer herstellung sowie deren verwendung |
DE68923156T2 (de) * | 1988-12-01 | 1995-12-07 | Ishihara Sangyo Kaisha | Verfahren zur Herstellung von magnetischen Eisenoxidteilchen für magnetische Aufzeichnung. |
DE4342331A1 (de) * | 1993-12-11 | 1995-06-14 | Krueger Gmbh & Co Kg | Pigmentgranulat zum Einfärben von Baustoffen |
US6416682B1 (en) * | 1999-11-04 | 2002-07-09 | Ceramic Oxides International B.V. | Method of producing minerals under near-critical, critical and supercritical conditions |
US8399022B2 (en) * | 2007-01-05 | 2013-03-19 | Tokyo Institute Of Technology | Spherical ferrite nanoparticles and method for producing the same |
EP2929547A4 (en) * | 2012-12-07 | 2016-08-17 | Dartmouth College | MAGNETIC NANOPARTICLES, COMPOSITE MATERIALS, SUSPENSIONS AND COLLIDES WITH HIGH SPECIFIC ABSORPTION RATE (SAR) |
CN110228824A (zh) * | 2018-11-26 | 2019-09-13 | 合肥学院 | 一种磁性氧化铁纳米材料的制备方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2694656A (en) * | 1947-07-25 | 1954-11-16 | Armour Res Found | Magnetic impulse record member, magnetic material, and method of making magnetic material |
US3240621A (en) * | 1960-11-14 | 1966-03-15 | Dictaphone Corp | High viscosity dispersions of magnetic pigments |
GB1144285A (en) * | 1967-02-09 | 1969-03-05 | Matsushita Electric Ind Co Ltd | Improvements in and relating to magnetic materials and devices |
DE1694167C3 (de) * | 1967-07-13 | 1975-04-24 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Emulsionen |
JPS4810994B1 (it) * | 1969-07-26 | 1973-04-09 | ||
NL7018467A (it) * | 1969-12-24 | 1971-06-28 | ||
US3989794A (en) * | 1971-01-07 | 1976-11-02 | Eastman Kodak Company | Process of manufacturing ferrite bodies of low porosity |
JPS5522002B2 (it) * | 1974-04-19 | 1980-06-13 | ||
JPS5719053B2 (it) * | 1974-09-20 | 1982-04-20 | ||
JPS5138099A (it) * | 1974-09-25 | 1976-03-30 | Fuji Photo Film Co Ltd | |
IT1028343B (it) * | 1975-01-14 | 1979-01-30 | Montedison Spa | Procedimento per la preparazione di ossido ferrico aciculare ferri magnetico |
-
1976
- 1976-07-27 DE DE2633597A patent/DE2633597C2/de not_active Expired
-
1977
- 1977-07-18 US US05/817,079 patent/US4140539A/en not_active Expired - Lifetime
- 1977-07-22 GB GB30869/77A patent/GB1538040A/en not_active Expired
- 1977-07-25 IT IT50410/77A patent/IT1143591B/it active
- 1977-07-26 JP JP8888177A patent/JPS5314736A/ja active Granted
- 1977-07-27 FR FR7723139A patent/FR2359884A1/fr active Granted
- 1977-07-27 BE BE2056116A patent/BE857184A/xx not_active IP Right Cessation
- 1977-07-27 NL NLAANVRAGE7708330,A patent/NL183993C/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL183993B (nl) | 1988-10-17 |
NL183993C (nl) | 1989-03-16 |
BE857184A (fr) | 1978-01-27 |
NL7708330A (nl) | 1978-01-31 |
DE2633597A1 (de) | 1978-02-02 |
FR2359884B1 (it) | 1980-12-26 |
GB1538040A (en) | 1979-01-10 |
JPS5314736A (en) | 1978-02-09 |
JPS5523216B2 (it) | 1980-06-21 |
FR2359884A1 (fr) | 1978-02-24 |
DE2633597C2 (de) | 1983-01-13 |
US4140539A (en) | 1979-02-20 |
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