NL7508195A - Werkwijze ter bereiding van aciculaire ijzer- bevattende ferromagnetische metaalpigmenten, alsmede voortbrengsels, verkregen volgens deze werkwijze. - Google Patents
Werkwijze ter bereiding van aciculaire ijzer- bevattende ferromagnetische metaalpigmenten, alsmede voortbrengsels, verkregen volgens deze werkwijze.Info
- Publication number
- NL7508195A NL7508195A NL7508195A NL7508195A NL7508195A NL 7508195 A NL7508195 A NL 7508195A NL 7508195 A NL7508195 A NL 7508195A NL 7508195 A NL7508195 A NL 7508195A NL 7508195 A NL7508195 A NL 7508195A
- Authority
- NL
- Netherlands
- Prior art keywords
- products
- well
- obtained according
- ferromagnetic metal
- iron containing
- 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
- C09C1/62—Metallic pigments or fillers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/065—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder obtained by a reduction
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
- Compounds Of Iron (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2434096A DE2434096C2 (de) | 1974-07-16 | 1974-07-16 | Nadelförmige, vorwiegend aus Eisen bestehende ferromagnetische Metallteilchen und Verfahren zu ihrer Herstellung |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7508195A true NL7508195A (nl) | 1976-01-20 |
NL184964B NL184964B (nl) | 1989-07-17 |
NL184964C NL184964C (nl) | 1989-12-18 |
Family
ID=5920668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7508195,A NL184964C (nl) | 1974-07-16 | 1975-07-09 | Werkwijze voor het bereiden van een magnetisch metaalpoeder, alsmede registratiedrager, bekleed met een dergelijk magnetisch metaalpoeder. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4050962A (nl) |
JP (1) | JPS5837363B2 (nl) |
DE (1) | DE2434096C2 (nl) |
GB (1) | GB1516727A (nl) |
NL (1) | NL184964C (nl) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2646348C2 (de) * | 1976-10-14 | 1986-08-28 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von nadelförmigen, ferromagnetischen, im wesentlichen aus Eisen bestehenden Metallteilchen und deren Verwendung zur Herstellung von magnetischen Aufzeichnungsträgern |
US4207092A (en) * | 1977-03-03 | 1980-06-10 | E. I. Du Pont De Nemours And Company | Acicular α-iron particles, their preparation and recording media employing same |
DE2714588C2 (de) * | 1977-04-01 | 1986-06-05 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung nadelförmiger ferromagnetischer Eisenteilchen |
US4165232A (en) * | 1978-09-15 | 1979-08-21 | Basf Aktiengesellschaft | Manufacture of ferromagnetic metal particles essentially consisting of iron |
JPS5555828A (en) * | 1978-10-20 | 1980-04-24 | Central Glass Co Ltd | Forming method for rugged pattern on surface of glass fiber-reinforced resin material |
US4310349A (en) * | 1979-02-02 | 1982-01-12 | Ampex Corporation | Highly orientable iron particles |
US4316738A (en) * | 1979-02-02 | 1982-02-23 | Ampex Corporation | Economical process for producing metal particles for magnetic recording |
US4273807A (en) * | 1979-03-19 | 1981-06-16 | E. I. Du Pont De Nemours And Company | Acicular α-iron particles and recording media employing same |
JPS55154501A (en) * | 1979-05-19 | 1980-12-02 | Hitachi Maxell Ltd | Ferromagnetic powder and its production |
DE2935358A1 (de) * | 1979-09-01 | 1981-03-26 | Basf Ag, 67063 Ludwigshafen | Verfahren zur herstellung nadelfoermiger ferromagnetischer eisenteilchen und deren verwendung |
DE2935357A1 (de) * | 1979-09-01 | 1981-09-10 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung nadelfoermiger ferromagnetischer eisenteilchen und deren verwendung |
US4318734A (en) * | 1980-02-25 | 1982-03-09 | Ampex Corporation | Reduction of iron oxide utilizing dehydrating agent |
DE3021111A1 (de) | 1980-06-04 | 1981-12-17 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von nadelfoermigen, im wesentlichen aus eisen bestehenden, ferromagnetischen metallteilchen |
DE3026696A1 (de) | 1980-07-15 | 1982-02-18 | Basf Ag, 6700 Ludwigshafen | Ferromagnetische, im wesentlichen aus eisen bestehende metallteilchen mit einem oberflaechenueberzug, verfahren zu deren herstellung sowie ihre verwendung zur herstellung von magnetischen aufzeichnungstraegern |
JPS5999706A (ja) * | 1982-11-29 | 1984-06-08 | Kanto Denka Kogyo Kk | 磁気記録用強磁性金属粉末の製造方法 |
JPS59157204A (ja) * | 1983-02-23 | 1984-09-06 | Chisso Corp | 強磁性金属微粒子の製造方法 |
JPS6017872U (ja) * | 1983-07-14 | 1985-02-06 | 株式会社 ムラコシ精工 | 扉のロツク装置 |
JPS6017870U (ja) * | 1983-07-15 | 1985-02-06 | 株式会社 ムラコシ精工 | 扉のロツク装置 |
US4464196A (en) * | 1983-08-24 | 1984-08-07 | Hercules Incorporated | Acicular ferromagnetic metal particles |
JPS6161404A (ja) * | 1984-08-31 | 1986-03-29 | Sony Corp | 金属磁性粉末の製造方法 |
US4728537A (en) * | 1985-11-29 | 1988-03-01 | Allied Colloids Limited | Ore pelletization |
GB8529418D0 (en) * | 1985-11-29 | 1986-01-08 | Allied Colloids Ltd | Iron ore pelletisation |
JP2582764B2 (ja) * | 1986-02-05 | 1997-02-19 | バスフ アクチェン ゲゼルシャフト | 本質的に鉄から成る針状強磁性金属粉末の製造方法 |
US5069216A (en) * | 1986-07-03 | 1991-12-03 | Advanced Magnetics Inc. | Silanized biodegradable super paramagnetic metal oxides as contrast agents for imaging the gastrointestinal tract |
US5219554A (en) * | 1986-07-03 | 1993-06-15 | Advanced Magnetics, Inc. | Hydrated biodegradable superparamagnetic metal oxides |
JPH06345437A (ja) * | 1993-06-04 | 1994-12-20 | Natl Sci Council | γ−酸化鉄磁気粉末の製造方法 |
DE19601412C2 (de) * | 1996-01-17 | 1999-07-22 | Emtec Magnetics Gmbh | Ferromagnetische Pigmente |
US5814272A (en) * | 1996-02-21 | 1998-09-29 | Millipore Corporation | Method for forming dendritic metal particles |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3206338A (en) * | 1963-05-10 | 1965-09-14 | Du Pont | Non-pyrophoric, ferromagnetic acicular particles and their preparation |
US3369886A (en) * | 1964-09-23 | 1968-02-20 | Exxon Research Engineering Co | Process of producing finely divided metals and alloys |
US3567525A (en) * | 1968-06-25 | 1971-03-02 | Du Pont | Heat treated ferromagnetic particles |
US3661556A (en) * | 1969-03-03 | 1972-05-09 | Du Pont | Method of making ferromagnetic metal powders |
JPS4922630B1 (nl) * | 1970-06-23 | 1974-06-10 | ||
BE792847A (fr) * | 1971-12-17 | 1973-06-15 | Bayer Ag | Procede de preparation d'oxydes de fer magnetiques aciculaires |
BE792840A (fr) * | 1971-12-30 | 1973-03-30 | Ampex | Particules de fer magnétique aciculaires stables |
DE2212933A1 (de) * | 1972-03-17 | 1973-09-20 | Philips Nv | Verfahren zur herstellung eines im wesentlichen aus eisen bestehenden metallpulvers |
CA1030751A (en) * | 1972-09-07 | 1978-05-09 | Matsushita Electric Industrial Co., Ltd. | MAGNETIC POWDER OF COBALT-SUBSTITUTED .gamma.-FERRIC OXIDE |
US3967986A (en) * | 1975-01-27 | 1976-07-06 | U.S. Philips Corporation | Method of preparing ferromagnetic material |
-
1974
- 1974-07-16 DE DE2434096A patent/DE2434096C2/de not_active Expired
-
1975
- 1975-07-01 JP JP50080570A patent/JPS5837363B2/ja not_active Expired
- 1975-07-09 NL NLAANVRAGE7508195,A patent/NL184964C/nl not_active IP Right Cessation
- 1975-07-14 US US05/595,562 patent/US4050962A/en not_active Expired - Lifetime
- 1975-07-15 GB GB29583/75A patent/GB1516727A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2434096A1 (de) | 1976-02-05 |
NL184964B (nl) | 1989-07-17 |
JPS5837363B2 (ja) | 1983-08-16 |
NL184964C (nl) | 1989-12-18 |
DE2434096C2 (de) | 1985-10-17 |
JPS5125455A (en) | 1976-03-02 |
US4050962A (en) | 1977-09-27 |
GB1516727A (en) | 1978-07-05 |
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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 | ||
V4 | Discontinued because of reaching the maximum lifetime of a patent |
Free format text: 950709 |