JPS57205461A - Magnetic material and production thereof - Google Patents
Magnetic material and production thereofInfo
- Publication number
- JPS57205461A JPS57205461A JP56091032A JP9103281A JPS57205461A JP S57205461 A JPS57205461 A JP S57205461A JP 56091032 A JP56091032 A JP 56091032A JP 9103281 A JP9103281 A JP 9103281A JP S57205461 A JPS57205461 A JP S57205461A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic material
- soln
- prepd
- propylene oxide
- phosphate
- 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.)
- Granted
Links
- 239000000696 magnetic material Substances 0.000 title abstract 5
- 229910019142 PO4 Inorganic materials 0.000 abstract 3
- 239000010452 phosphate Substances 0.000 abstract 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 abstract 2
- -1 phosphate ester Chemical class 0.000 abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 abstract 1
- 125000003342 alkenyl group Chemical group 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 125000005037 alkyl phenyl group Chemical group 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 229910006297 γ-Fe2O3 Inorganic materials 0.000 abstract 1
Landscapes
- Detergent Compositions (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE: To obtain a magnetic material which has excellent dispersibility and magnetic characteristics and gives a magnetic film having excellent wear resistance, etc., by immersing a powdered magnetic material in an aq. soln. of a specified phosphate ester, filtering the material and drying it.
CONSTITUTION: An aq. soln. of one member selected from phosphate monoester of formulaI, phosphate diester of formula II (wherein R is 4W24C alkyl, alkenyl, alkylphenyl; n is 0, 1W30; m is 1W30) and derivatives thereof, is prepd. A powdered magnetic material such as γ-Fe2O3 or magnetite is immersed in the aq. soln., filtered and dried to obtain the desired magnetic material. The compds. of formulasI, II can be prepd. by addition-polymerizing propylene oxide or ethylene oxide and propylene oxide with a 4W24C alcohol or an alkylphenol and then seterifying the obtained addition polymer with phosphoric acid.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56091032A JPS57205461A (en) | 1981-06-13 | 1981-06-13 | Magnetic material and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56091032A JPS57205461A (en) | 1981-06-13 | 1981-06-13 | Magnetic material and production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57205461A true JPS57205461A (en) | 1982-12-16 |
| JPH0123922B2 JPH0123922B2 (en) | 1989-05-09 |
Family
ID=14015166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56091032A Granted JPS57205461A (en) | 1981-06-13 | 1981-06-13 | Magnetic material and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57205461A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4597801A (en) * | 1984-09-28 | 1986-07-01 | Union Carbide Corporation | Silane dispersing agent for magnetic media |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5040103A (en) * | 1973-08-16 | 1975-04-12 | ||
| JPS5133758A (en) * | 1974-09-17 | 1976-03-23 | Fuji Photo Film Co Ltd | |
| JPS5482354A (en) * | 1977-12-15 | 1979-06-30 | Tdk Corp | Cobalt-adsorbing-magnetic-power and its manufacture |
-
1981
- 1981-06-13 JP JP56091032A patent/JPS57205461A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5040103A (en) * | 1973-08-16 | 1975-04-12 | ||
| JPS5133758A (en) * | 1974-09-17 | 1976-03-23 | Fuji Photo Film Co Ltd | |
| JPS5482354A (en) * | 1977-12-15 | 1979-06-30 | Tdk Corp | Cobalt-adsorbing-magnetic-power and its manufacture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4597801A (en) * | 1984-09-28 | 1986-07-01 | Union Carbide Corporation | Silane dispersing agent for magnetic media |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0123922B2 (en) | 1989-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5547695A (en) | Pyrazole phosphate, its preparation, and insecticide and miticide | |
| JPS5698717A (en) | Magnetic recording medium | |
| JPS5692884A (en) | Novel piperidine derivative and its preparation | |
| JPS57205461A (en) | Magnetic material and production thereof | |
| JPS55130991A (en) | Pyrazole phosphate esters, their preparation and insecticide and acaricide | |
| JPS5413997A (en) | Magnetic recording medium and its manufacture | |
| JPS5494308A (en) | Production of magnetic recording medium | |
| JPS5576840A (en) | New oxyacetic acid derivative, its preparation and blood- lipid depressor containing it as active principle | |
| JPS579784A (en) | Production of penem-3-carboxylic derivative | |
| JPS5527157A (en) | Repellent against shipworm | |
| JPS5712804A (en) | Water-soluble defoaming composition | |
| JPS532559A (en) | Polyester compositions | |
| JPS57158028A (en) | High density magnetic recording medium | |
| JPS5744623A (en) | Preparation of polyester having excellent particle dispersibility | |
| JPS5658134A (en) | Magnetic recording medium | |
| JPS54117554A (en) | Resin composition | |
| JPS56121621A (en) | Dispersing medium for dispersion treatment and dispersion treatment method | |
| JPS52102280A (en) | 5,7,8-trimethyltocotrienol-nicotinic acid esters and preparation there of | |
| JPS57116035A (en) | Novel benzylideneaminocarboxylic acid derivative and its preparation | |
| JPS57188595A (en) | 7alpha-methoxycephem compound and its preparation | |
| JPS5570938A (en) | Magnetic recording media | |
| JPS52133959A (en) | 2-cyano-3-methyl-3-(naphthyl)acrylic acids and method of preparing the same | |
| JPS52120758A (en) | Electronic microscope | |
| JPS6462345A (en) | Polyester-based plasticizer | |
| JPS55102572A (en) | 5-fluorouracil derivative and its preparation |