JPS62174904A - 磁気記録用磁性金属粉末の防錆処理方法 - Google Patents
磁気記録用磁性金属粉末の防錆処理方法Info
- Publication number
- JPS62174904A JPS62174904A JP61016567A JP1656786A JPS62174904A JP S62174904 A JPS62174904 A JP S62174904A JP 61016567 A JP61016567 A JP 61016567A JP 1656786 A JP1656786 A JP 1656786A JP S62174904 A JPS62174904 A JP S62174904A
- Authority
- JP
- Japan
- Prior art keywords
- metal powder
- magnetic metal
- magnetic
- acid ester
- gallic acid
- 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
- 239000000843 powder Substances 0.000 title claims abstract description 55
- 239000002184 metal Substances 0.000 title claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 50
- LNTHITQWFMADLM-UHFFFAOYSA-N anhydrous gallic acid Natural products OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229940074391 gallic acid Drugs 0.000 claims abstract description 19
- 235000004515 gallic acid Nutrition 0.000 claims abstract description 19
- -1 gallic acid ester Chemical class 0.000 claims abstract description 19
- 239000003960 organic solvent Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 4
- 230000005415 magnetization Effects 0.000 abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 8
- 239000001301 oxygen Substances 0.000 abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 abstract description 8
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 239000002904 solvent Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 238000007598 dipping method Methods 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 239000003973 paint Substances 0.000 description 4
- RPWFJAMTCNSJKK-UHFFFAOYSA-N Dodecyl gallate Chemical compound CCCCCCCCCCCCOC(=O)C1=CC(O)=C(O)C(O)=C1 RPWFJAMTCNSJKK-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 235000010386 dodecyl gallate Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- ZTHYODDOHIVTJV-UHFFFAOYSA-N Propyl gallate Chemical compound CCCOC(=O)C1=CC(O)=C(O)C(O)=C1 ZTHYODDOHIVTJV-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- VFPFQHQNJCMNBZ-UHFFFAOYSA-N ethyl gallate Chemical compound CCOC(=O)C1=CC(O)=C(O)C(O)=C1 VFPFQHQNJCMNBZ-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- FBSFWRHWHYMIOG-UHFFFAOYSA-N methyl 3,4,5-trihydroxybenzoate Chemical compound COC(=O)C1=CC(O)=C(O)C(O)=C1 FBSFWRHWHYMIOG-UHFFFAOYSA-N 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004262 Ethyl gallate Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019277 ethyl gallate Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- IBKQQKPQRYUGBJ-UHFFFAOYSA-N methyl gallate Natural products CC(=O)C1=CC(O)=C(O)C(O)=C1 IBKQQKPQRYUGBJ-UHFFFAOYSA-N 0.000 description 1
- BRNPAEUKZMBRLQ-UHFFFAOYSA-N octadecyl 3,4,5-trihydroxybenzoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C1=CC(O)=C(O)C(O)=C1 BRNPAEUKZMBRLQ-UHFFFAOYSA-N 0.000 description 1
- 235000010387 octyl gallate Nutrition 0.000 description 1
- 239000000574 octyl gallate Substances 0.000 description 1
- NRPKURNSADTHLJ-UHFFFAOYSA-N octyl gallate Chemical compound CCCCCCCCOC(=O)C1=CC(O)=C(O)C(O)=C1 NRPKURNSADTHLJ-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TXGSOSAONMOPDL-UHFFFAOYSA-N propan-2-yl 3,4,5-trihydroxybenzoate Chemical compound CC(C)OC(=O)C1=CC(O)=C(O)C(O)=C1 TXGSOSAONMOPDL-UHFFFAOYSA-N 0.000 description 1
- 235000010388 propyl gallate Nutrition 0.000 description 1
- 239000000473 propyl gallate Substances 0.000 description 1
- 229940075579 propyl gallate Drugs 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Powder Metallurgy (AREA)
- Magnetic Record Carriers (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61016567A JPS62174904A (ja) | 1986-01-28 | 1986-01-28 | 磁気記録用磁性金属粉末の防錆処理方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61016567A JPS62174904A (ja) | 1986-01-28 | 1986-01-28 | 磁気記録用磁性金属粉末の防錆処理方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62174904A true JPS62174904A (ja) | 1987-07-31 |
| JPH0523483B2 JPH0523483B2 (OSRAM) | 1993-04-02 |
Family
ID=11919864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61016567A Granted JPS62174904A (ja) | 1986-01-28 | 1986-01-28 | 磁気記録用磁性金属粉末の防錆処理方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62174904A (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009221505A (ja) * | 2008-03-14 | 2009-10-01 | Dowa Electronics Materials Co Ltd | 没食子酸またはその誘導体に被覆された銀ナノ粒子 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6150213A (ja) * | 1984-08-16 | 1986-03-12 | Matsushita Electric Ind Co Ltd | 磁気記録媒体 |
-
1986
- 1986-01-28 JP JP61016567A patent/JPS62174904A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6150213A (ja) * | 1984-08-16 | 1986-03-12 | Matsushita Electric Ind Co Ltd | 磁気記録媒体 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009221505A (ja) * | 2008-03-14 | 2009-10-01 | Dowa Electronics Materials Co Ltd | 没食子酸またはその誘導体に被覆された銀ナノ粒子 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0523483B2 (OSRAM) | 1993-04-02 |
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