JPH0444610B2 - - Google Patents
Info
- Publication number
- JPH0444610B2 JPH0444610B2 JP59254917A JP25491784A JPH0444610B2 JP H0444610 B2 JPH0444610 B2 JP H0444610B2 JP 59254917 A JP59254917 A JP 59254917A JP 25491784 A JP25491784 A JP 25491784A JP H0444610 B2 JPH0444610 B2 JP H0444610B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- iron oxide
- particles
- oxide particles
- magnetic iron
- 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 - Lifetime
Links
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 72
- 239000002245 particle Substances 0.000 claims description 67
- -1 carboxylic acid compound Chemical class 0.000 claims description 15
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 description 21
- 238000000576 coating method Methods 0.000 description 21
- 239000011230 binding agent Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 8
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- 230000001976 improved effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000006249 magnetic particle Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- GLULCKCBVYGUDD-UHFFFAOYSA-N 2-phosphonobutane-1,1,1-tricarboxylic acid Chemical compound CCC(P(O)(O)=O)C(C(O)=O)(C(O)=O)C(O)=O GLULCKCBVYGUDD-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 1
- XQYRPBCOMLASMG-UHFFFAOYSA-N 2-methyl-2-phosphonopropanoic acid Chemical compound OC(=O)C(C)(C)P(O)(O)=O XQYRPBCOMLASMG-UHFFFAOYSA-N 0.000 description 1
- PWSXRGRLZKVHLW-UHFFFAOYSA-N 2-phosphonobutanoic acid Chemical compound CCC(C(O)=O)P(O)(O)=O PWSXRGRLZKVHLW-UHFFFAOYSA-N 0.000 description 1
- GUXRZQZCNOHHDO-UHFFFAOYSA-N 2-phosphonopropanoic acid Chemical compound OC(=O)C(C)P(O)(O)=O GUXRZQZCNOHHDO-UHFFFAOYSA-N 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59254917A JPS61132521A (ja) | 1984-11-30 | 1984-11-30 | 磁気記録媒体用磁性酸化鉄粒子粉末及びその製造法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59254917A JPS61132521A (ja) | 1984-11-30 | 1984-11-30 | 磁気記録媒体用磁性酸化鉄粒子粉末及びその製造法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61132521A JPS61132521A (ja) | 1986-06-20 |
| JPH0444610B2 true JPH0444610B2 (enrdf_load_stackoverflow) | 1992-07-22 |
Family
ID=17271649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59254917A Granted JPS61132521A (ja) | 1984-11-30 | 1984-11-30 | 磁気記録媒体用磁性酸化鉄粒子粉末及びその製造法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61132521A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0234522A (ja) * | 1988-07-22 | 1990-02-05 | Showa Denko Kk | 高転移温度を有する針状γ−Ｆｅ２Ｏ３粒子の製造法 |
-
1984
- 1984-11-30 JP JP59254917A patent/JPS61132521A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61132521A (ja) | 1986-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |