GB1450241A - Methods of making magnetic metal particles coated with a protective layer - Google Patents
Methods of making magnetic metal particles coated with a protective layerInfo
- Publication number
- GB1450241A GB1450241A GB234474A GB234474A GB1450241A GB 1450241 A GB1450241 A GB 1450241A GB 234474 A GB234474 A GB 234474A GB 234474 A GB234474 A GB 234474A GB 1450241 A GB1450241 A GB 1450241A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alloy
- coated
- particles
- fatty acid
- protective layer
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 239000002923 metal particle Substances 0.000 title abstract 2
- 239000011241 protective layer Substances 0.000 title abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 4
- 239000000956 alloy Substances 0.000 abstract 4
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 4
- 229930195729 fatty acid Natural products 0.000 abstract 4
- 239000000194 fatty acid Substances 0.000 abstract 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- -1 fatty acid salt Chemical class 0.000 abstract 2
- 150000004665 fatty acids Chemical class 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- OYHQOLUKZRVURQ-HZJYTTRNSA-M 9-cis,12-cis-Octadecadienoate Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC([O-])=O OYHQOLUKZRVURQ-HZJYTTRNSA-M 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910020630 Co Ni Inorganic materials 0.000 abstract 1
- 229910002440 Co–Ni Inorganic materials 0.000 abstract 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 abstract 1
- 229910017061 Fe Co Inorganic materials 0.000 abstract 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract 1
- 229910017709 Ni Co Inorganic materials 0.000 abstract 1
- 229910003267 Ni-Co Inorganic materials 0.000 abstract 1
- 229910003262 Ni‐Co Inorganic materials 0.000 abstract 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 150000003863 ammonium salts Chemical class 0.000 abstract 1
- 239000002585 base Substances 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 229940049918 linoleate Drugs 0.000 abstract 1
- 229940040452 linolenate Drugs 0.000 abstract 1
- DTOSIQBPPRVQHS-PDBXOOCHSA-M linolenate Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC([O-])=O DTOSIQBPPRVQHS-PDBXOOCHSA-M 0.000 abstract 1
- 239000006249 magnetic particle Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229940049964 oleate Drugs 0.000 abstract 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 229920003225 polyurethane elastomer Polymers 0.000 abstract 1
- 239000012255 powdered metal Substances 0.000 abstract 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 abstract 1
- 229940080350 sodium stearate Drugs 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 125000001424 substituent group Chemical group 0.000 abstract 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
- 239000008096 xylene Substances 0.000 abstract 1
Classifications
-
- 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
- H01F1/061—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 with a protective layer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Paints Or Removers (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
- Magnetic Record Carriers (AREA)
- Chemical Treatment Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1016573A JPS547074B2 (enrdf_load_stackoverflow) | 1973-01-24 | 1973-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1450241A true GB1450241A (en) | 1976-09-22 |
Family
ID=11742658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB234474A Expired GB1450241A (en) | 1973-01-24 | 1974-01-17 | Methods of making magnetic metal particles coated with a protective layer |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS547074B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1017205A (enrdf_load_stackoverflow) |
| DE (1) | DE2403366C2 (enrdf_load_stackoverflow) |
| FR (1) | FR2214948B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1450241A (enrdf_load_stackoverflow) |
| IT (1) | IT1009585B (enrdf_load_stackoverflow) |
| NL (1) | NL181061C (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0027255A1 (en) * | 1979-10-09 | 1981-04-22 | Hitachi Maxell Ltd. | Magnetic recording medium |
| US5447682A (en) * | 1992-07-06 | 1995-09-05 | Minnesota Mining And Manufacturing Company | Method for production of magnetic coating material |
| CN115998158A (zh) * | 2022-12-29 | 2023-04-25 | 武汉苏泊尔炊具有限公司 | 一种不粘炊具及其制造方法 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS554804B2 (enrdf_load_stackoverflow) * | 1975-03-22 | 1980-02-01 | ||
| JPS609322B2 (ja) * | 1976-07-13 | 1985-03-09 | 日立マクセル株式会社 | 磁気記録用金属磁性粉末の製造法 |
| JPS5629841A (en) * | 1979-08-12 | 1981-03-25 | Tdk Corp | Magnetic recording medium |
| JPS579802A (en) * | 1980-06-20 | 1982-01-19 | Dainippon Ink & Chem Inc | Metallic magnetic powder and its manufacture |
| JPS6036603A (ja) * | 1983-08-10 | 1985-02-25 | Dainippon Ink & Chem Inc | 比表面積の小さな微小金属磁性粉およびその製造方法 |
| JPH0643601B2 (ja) * | 1985-06-12 | 1994-06-08 | 戸田工業株式会社 | 金属鉄粒子粉末又は鉄を主成分とする合金磁性粒子粉末の製造法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD91017A (enrdf_load_stackoverflow) * | ||||
| FR1114250A (fr) * | 1953-12-02 | 1956-04-10 | Electro Chimie Soc D | Perfectionnements à la fabrication d'aimants permanents |
-
1973
- 1973-01-24 JP JP1016573A patent/JPS547074B2/ja not_active Expired
-
1974
- 1974-01-17 GB GB234474A patent/GB1450241A/en not_active Expired
- 1974-01-23 CA CA190,751A patent/CA1017205A/en not_active Expired
- 1974-01-24 DE DE19742403366 patent/DE2403366C2/de not_active Expired
- 1974-01-24 IT IT1975674A patent/IT1009585B/it active
- 1974-01-24 NL NL7401010A patent/NL181061C/xx not_active IP Right Cessation
- 1974-01-24 FR FR7402443A patent/FR2214948B1/fr not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0027255A1 (en) * | 1979-10-09 | 1981-04-22 | Hitachi Maxell Ltd. | Magnetic recording medium |
| US5447682A (en) * | 1992-07-06 | 1995-09-05 | Minnesota Mining And Manufacturing Company | Method for production of magnetic coating material |
| CN115998158A (zh) * | 2022-12-29 | 2023-04-25 | 武汉苏泊尔炊具有限公司 | 一种不粘炊具及其制造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7401010A (enrdf_load_stackoverflow) | 1974-07-26 |
| NL181061B (nl) | 1987-01-02 |
| FR2214948B1 (enrdf_load_stackoverflow) | 1978-03-24 |
| NL181061C (nl) | 1987-06-01 |
| JPS547074B2 (enrdf_load_stackoverflow) | 1979-04-03 |
| FR2214948A1 (enrdf_load_stackoverflow) | 1974-08-19 |
| IT1009585B (it) | 1976-12-20 |
| DE2403366A1 (de) | 1974-07-25 |
| DE2403366C2 (de) | 1986-09-04 |
| JPS4997738A (enrdf_load_stackoverflow) | 1974-09-17 |
| CA1017205A (en) | 1977-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1320779A (en) | Magnetic coating formulation for recording tape | |
| GB1450241A (en) | Methods of making magnetic metal particles coated with a protective layer | |
| JPS57133521A (en) | Magnetic recording medium | |
| GB1489436A (en) | Magnetic recording medium containing lubricants | |
| JPS567234A (en) | Magnetic recording medium | |
| GB1100610A (en) | Magnetic recording medium and method of making same | |
| GB1415816A (en) | Magnetically rotatable sign elements | |
| GB1267836A (en) | Magnetic recording medium | |
| JPS5278954A (en) | Polyester films | |
| GB761451A (en) | Improvements in or relating to magnetic recording media | |
| JPS5758229A (en) | Magnetic painting material for magnetic recording medium | |
| GB1382724A (en) | Cobalt powders their preparation and use | |
| GB1132956A (en) | Binder system for magneto recording medium | |
| US3281669A (en) | Means and method for indicating and visibly permanently recording a magnetic field utilizing a magnetostrictive material and a chemical reaction | |
| EP0214644A3 (en) | Method of producing ferromagnetic particles | |
| GB1366034A (en) | Magnetic recording medium | |
| GB1448470A (en) | Manufacture of magnetic recording media | |
| GB1161068A (en) | Magnetic Coating Composition | |
| GB1105424A (en) | Magnetic recording medium composition and method of making same | |
| GB1528018A (en) | Flexible multilayer magnetic recording medium | |
| JPS56143521A (en) | Manufacture of magnetic recording medium | |
| EP0352757A3 (en) | Magnetic recording medium | |
| JPS52129734A (en) | Underwater stainproof and mothproof coating compositions | |
| GB1324486A (en) | Process for treating a pyrophoric ferromagnetic metal powder | |
| JPS5643371A (en) | Magnetic paint composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19940116 |