CN1816849A - 涂布型叠层磁记录介质的底层用粉末以及使用该粉末的磁记录介质 - Google Patents
涂布型叠层磁记录介质的底层用粉末以及使用该粉末的磁记录介质 Download PDFInfo
- Publication number
- CN1816849A CN1816849A CNA2004800190104A CN200480019010A CN1816849A CN 1816849 A CN1816849 A CN 1816849A CN A2004800190104 A CNA2004800190104 A CN A2004800190104A CN 200480019010 A CN200480019010 A CN 200480019010A CN 1816849 A CN1816849 A CN 1816849A
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- Prior art keywords
- powder
- phosphorus
- magnetic recording
- tape
- particle
- 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.)
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- 239000000843 powder Substances 0.000 title claims abstract description 120
- 239000011574 phosphorus Substances 0.000 claims abstract description 78
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 78
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000002245 particle Substances 0.000 claims abstract description 64
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 33
- -1 phosphorus compound Chemical class 0.000 claims abstract description 15
- 238000004438 BET method Methods 0.000 claims abstract description 13
- 239000011734 sodium Substances 0.000 claims abstract description 10
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 32
- 239000004411 aluminium Substances 0.000 claims description 29
- 229910052782 aluminium Inorganic materials 0.000 claims description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 29
- 239000011347 resin Substances 0.000 claims description 23
- 229920005989 resin Polymers 0.000 claims description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 22
- 239000010703 silicon Substances 0.000 claims description 22
- 229910052710 silicon Inorganic materials 0.000 claims description 22
- 210000002469 basement membrane Anatomy 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 5
- 239000001038 titanium pigment Substances 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical class OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052595 hematite Inorganic materials 0.000 description 63
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 63
- 238000005245 sintering Methods 0.000 description 36
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- CUPCBVUMRUSXIU-UHFFFAOYSA-N [Fe].OOO Chemical compound [Fe].OOO CUPCBVUMRUSXIU-UHFFFAOYSA-N 0.000 description 28
- 229910021519 iron(III) oxide-hydroxide Inorganic materials 0.000 description 28
- 239000000243 solution Substances 0.000 description 28
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- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 21
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- 150000004665 fatty acids Chemical class 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 12
- 229910000859 α-Fe Inorganic materials 0.000 description 12
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- 238000003860 storage Methods 0.000 description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 9
- 235000021355 Stearic acid Nutrition 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
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- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 9
- 239000008117 stearic acid Substances 0.000 description 9
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- 239000012298 atmosphere Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
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- 239000010959 steel Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 description 6
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
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- 238000003475 lamination Methods 0.000 description 4
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- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- JZQOJFLIJNRDHK-CMDGGOBGSA-N alpha-irone Chemical compound CC1CC=C(C)C(\C=C\C(C)=O)C1(C)C JZQOJFLIJNRDHK-CMDGGOBGSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
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- 239000004615 ingredient Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 239000003352 sequestering agent Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
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- 230000000007 visual effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012113 quantitative test Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910021642 ultra pure water Inorganic materials 0.000 description 2
- 239000012498 ultrapure water Substances 0.000 description 2
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 1
- 229920001747 Cellulose diacetate Polymers 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001399 aluminium compounds Chemical class 0.000 description 1
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- 239000001569 carbon dioxide Substances 0.000 description 1
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- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
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- 229920002521 macromolecule Polymers 0.000 description 1
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- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
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- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
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- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 238000009816 wet lamination Methods 0.000 description 1
- 229910000347 yttrium sulfate Inorganic materials 0.000 description 1
- RTAYJOCWVUTQHB-UHFFFAOYSA-H yttrium(3+);trisulfate Chemical compound [Y+3].[Y+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RTAYJOCWVUTQHB-UHFFFAOYSA-H 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- 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
- C09C1/22—Compounds of iron
- C09C1/24—Oxides of iron
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/733—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the addition of non-magnetic particles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- 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
- C01P2006/12—Surface area
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Composite Materials (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
- Hard Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
Abstract
Description
磁带特性 | |||||||||||
底层单层评价 | 叠层评价 | 耐久性 | 输出 | 摩擦系数 | 表面状态SEM | 磁头污垢 | |||||
粘度(mPa·s) | 表面粗度() | 表面粗度() | 钢球滑动(μm) | 遍次数 | 原始(dB) | 保存后(dB) | 原始(μ) | 保存后(μ) | |||
实施例1 | 135 | 80 | 45 | 180 | >1500 | 0.0 | -0.6 | 0.21 | 0.28 | ○ | ○ |
实施例2 | 92 | 70 | 35 | 170 | >1500 | -0.2 | -0.6 | 0.20 | 0.28 | ○ | ○ |
实施例3 | 90 | 65 | 35 | 160 | >1500 | 0.0 | -0.2 | 0.18 | 0.22 | ◎ | ◎ |
实施例4 | 95 | 35 | 15 | 160 | >1500 | 0.0 | -0.2 | 0.18 | 0.22 | ◎ | ◎ |
实施例5 | 85 | 70 | 35 | 170 | >1500 | -0.1 | -0.2 | 0.17 | 0.21 | ◎ | ◎ |
实施例6 | 83 | 65 | 35 | 170 | >1500 | 0.0 | -0.1 | 0.17 | 0.21 | ◎ | ◎ |
实施例7 | 95 | 60 | 30 | 160 | >1500 | -0.1 | -0.2 | 0.15 | 0.18 | ◎ | ◎ |
实施例8 | 103 | 55 | 25 | 150 | >1500 | 0.0 | -0.1 | 0.14 | 0.16 | ◎ | ◎ |
实施例9 | 108 | 50 | 20 | 170 | >1500 | 0.1 | 0.0 | 0.16 | 0.17 | ○ | ○ |
实施例10 | 120 | 70 | 40 | 190 | >1500 | 0.0 | -0.4 | 0.23 | 0.29 | ○ | ○ |
实施例11 | 132 | 85 | 45 | 170 | >1500 | 0.2 | -0.7 | 0.20 | 0.26 | ○ | ○ |
实施例12 | 148 | 95 | 50 | 160 | >1500 | 0.1 | -0.8 | 0.19 | 0.23 | ○ | ○ |
实施例13 | 93 | 50 | 25 | 160 | >1500 | 0.2 | -0.3 | 0.14 | 0.18 | ◎ | ◎ |
实施例14 | 98 | 50 | 25 | 150 | >1500 | 0.2 | -0.3 | 0.15 | 0.17 | ◎ | ◎ |
比较例1 | 360 | 125 | 60 | 160 | >1500 | 0.0 | -2.1 | 0.42 | 0.62 | × | × |
比较例2 | 279 | 110 | 55 | 170 | >1500 | -0.2 | -1.6 | 0.35 | 0.52 | × | × |
比较例3 | 120 | 155 | 50 | 450 | 360 | 0.1 | -0.3 | 0.20 | 0.22 | ○ | ○ |
比较例4 | 不能分散不可磁带化 |
Claims (7)
Applications Claiming Priority (2)
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JP2003192319 | 2003-07-04 | ||
JP192319/2003 | 2003-07-04 |
Publications (2)
Publication Number | Publication Date |
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CN1816849A true CN1816849A (zh) | 2006-08-09 |
CN100423089C CN100423089C (zh) | 2008-10-01 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB2004800190104A Expired - Fee Related CN100423089C (zh) | 2003-07-04 | 2004-07-01 | 涂布型叠层磁记录介质的底层用粉末以及使用该粉末的磁记录介质 |
Country Status (8)
Country | Link |
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US (1) | US20060166040A1 (zh) |
EP (1) | EP1643493B1 (zh) |
JP (1) | JP4787958B2 (zh) |
KR (1) | KR20060026124A (zh) |
CN (1) | CN100423089C (zh) |
AT (1) | ATE408219T1 (zh) |
DE (1) | DE602004016511D1 (zh) |
WO (1) | WO2005004116A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1492089B1 (en) * | 2002-04-03 | 2007-06-06 | Dowa Mining Co., Ltd. | Powder for sublayer of coating type magnetic recording medium and magnetic recording medium comprising the same |
JP2006031751A (ja) * | 2004-07-12 | 2006-02-02 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JP5057042B2 (ja) * | 2007-05-23 | 2012-10-24 | 戸田工業株式会社 | 磁気記録媒体の非磁性下地層用非磁性粒子粉末、及び磁気記録媒体 |
WO2019187323A1 (ja) | 2018-03-30 | 2019-10-03 | ソニー株式会社 | 磁気記録媒体 |
US20220223860A1 (en) * | 2019-08-13 | 2022-07-14 | Lg Energy Solution, Ltd. | Iron oxyhydroxynitrate having phosphoric acid anion-adsorbed surface, preparation method therefor, cathode comprising iron oxyhydroxynitrate having phosphoric acid anion-adsorbed surface for lithium secondary battery, and lithium secondary battery comprising same |
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US4758415A (en) * | 1980-12-22 | 1988-07-19 | Basf Corporation | Process for removing soluble metal cations in iron oxide pigments |
JP2872227B2 (ja) * | 1992-08-07 | 1999-03-17 | 戸田工業株式会社 | 磁気記録媒体用下地層 |
JPH06302413A (ja) * | 1993-04-16 | 1994-10-28 | Ishihara Sangyo Kaisha Ltd | 磁気記録用金属磁性粉末の製造方法 |
JP2924941B2 (ja) * | 1993-12-27 | 1999-07-26 | 戸田工業株式会社 | 磁気記録媒体用下地層 |
JPH0922524A (ja) * | 1995-07-06 | 1997-01-21 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JP3509837B2 (ja) * | 1995-10-20 | 2004-03-22 | 戸田工業株式会社 | 鉄を主成分とする金属磁性粒子粉末を使用している磁気記録媒体の非磁性下地層用ヘマタイト粒子粉末、該ヘマタイト粒子粉末を用いた磁気記録媒体の非磁性下地層、該非磁性下地層を用いた磁気記録媒体並びに該ヘマタイト粒子粉末の製造法 |
KR970023005A (ko) * | 1995-10-20 | 1997-05-30 | 토다 토시유끼 | 자기기록매체용 비자성 하도층용 헤마타이트 입자, 그의 제조방법, 비자성 하도층 및 자기기록매체 |
JPH09259422A (ja) * | 1996-03-22 | 1997-10-03 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
EP0928775B1 (en) * | 1997-12-26 | 2003-06-18 | Toda Kogyo Corporation | Acicular hematite particles and magnetic recording medium |
JP3832539B2 (ja) * | 1998-01-12 | 2006-10-11 | 戸田工業株式会社 | 磁気記録媒体 |
JPH11273056A (ja) * | 1998-03-25 | 1999-10-08 | Tdk Corp | 磁気記録媒体及びその製造方法 |
JPH11353637A (ja) * | 1998-04-10 | 1999-12-24 | Toda Kogyo Corp | 非磁性下地層用針状ヘマタイト粒子粉末及び該針状ヘマタイト粒子粉末を用いた非磁性下地層を有する磁気記録媒体 |
JP2000123354A (ja) * | 1998-10-20 | 2000-04-28 | Toda Kogyo Corp | 磁気記録媒体の非磁性下地層用粒子粉末及びその製造法並びに磁気記録媒体 |
JP3427883B2 (ja) * | 1998-11-04 | 2003-07-22 | 戸田工業株式会社 | 磁気記録媒体の非磁性下地層用非磁性粒子粉末及びその製造法並びに磁気記録媒体 |
US6506264B1 (en) * | 1998-12-18 | 2003-01-14 | Dowa Mining Co., Ltd. | Ferromagnetic powder |
JP4732556B2 (ja) * | 1999-01-29 | 2011-07-27 | 戸田工業株式会社 | 磁気記録媒体の非磁性下地層用非磁性粒子粉末及びその製造法並びに磁気記録媒体 |
JP2000251248A (ja) * | 1999-02-24 | 2000-09-14 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JP4305589B2 (ja) * | 1999-05-24 | 2009-07-29 | 戸田工業株式会社 | 磁気記録媒体の非磁性下地層用非磁性粒子粉末及びその製造法並びに磁気記録媒体 |
JP2001243619A (ja) * | 2000-02-28 | 2001-09-07 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JP2001325716A (ja) * | 2000-05-16 | 2001-11-22 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JP2001344738A (ja) * | 2000-05-26 | 2001-12-14 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JP4296350B2 (ja) * | 2004-08-23 | 2009-07-15 | Dowaエレクトロニクス株式会社 | 磁気記録媒体用非磁性粉末およびその製造方法ならびにこれを用いた磁気記録媒体 |
-
2004
- 2004-07-01 DE DE602004016511T patent/DE602004016511D1/de not_active Expired - Lifetime
- 2004-07-01 US US10/563,111 patent/US20060166040A1/en not_active Abandoned
- 2004-07-01 AT AT04747162T patent/ATE408219T1/de not_active IP Right Cessation
- 2004-07-01 WO PCT/JP2004/009693 patent/WO2005004116A1/ja active IP Right Grant
- 2004-07-01 EP EP04747162A patent/EP1643493B1/en not_active Expired - Lifetime
- 2004-07-01 JP JP2005511410A patent/JP4787958B2/ja not_active Expired - Fee Related
- 2004-07-01 CN CNB2004800190104A patent/CN100423089C/zh not_active Expired - Fee Related
- 2004-07-01 KR KR1020067000138A patent/KR20060026124A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
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JPWO2005004116A1 (ja) | 2006-08-17 |
EP1643493B1 (en) | 2008-09-10 |
DE602004016511D1 (de) | 2008-10-23 |
US20060166040A1 (en) | 2006-07-27 |
ATE408219T1 (de) | 2008-09-15 |
WO2005004116A1 (ja) | 2005-01-13 |
EP1643493A1 (en) | 2006-04-05 |
EP1643493A4 (en) | 2006-07-26 |
KR20060026124A (ko) | 2006-03-22 |
JP4787958B2 (ja) | 2011-10-05 |
CN100423089C (zh) | 2008-10-01 |
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