JP2004103229A - 低標準偏差の磁束変調特性を有する磁気記録媒体 - Google Patents
低標準偏差の磁束変調特性を有する磁気記録媒体 Download PDFInfo
- Publication number
- JP2004103229A JP2004103229A JP2003315458A JP2003315458A JP2004103229A JP 2004103229 A JP2004103229 A JP 2004103229A JP 2003315458 A JP2003315458 A JP 2003315458A JP 2003315458 A JP2003315458 A JP 2003315458A JP 2004103229 A JP2004103229 A JP 2004103229A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- magnetic
- recording medium
- layer
- fluid
- 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.)
- Pending
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 224
- 230000004907 flux Effects 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 claims description 20
- 239000006249 magnetic particle Substances 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000002491 polymer binding agent Substances 0.000 claims description 6
- 229920005596 polymer binder Polymers 0.000 claims description 5
- 238000003860 storage Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 148
- 239000012530 fluid Substances 0.000 description 80
- 238000000576 coating method Methods 0.000 description 38
- 239000011248 coating agent Substances 0.000 description 32
- 239000000758 substrate Substances 0.000 description 32
- 239000000203 mixture Substances 0.000 description 24
- 239000002245 particle Substances 0.000 description 21
- 229920002554 vinyl polymer Polymers 0.000 description 21
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 20
- 150000002009 diols Chemical class 0.000 description 19
- 239000008199 coating composition Substances 0.000 description 16
- 229920001577 copolymer Polymers 0.000 description 16
- 239000004814 polyurethane Substances 0.000 description 16
- 229920002635 polyurethane Polymers 0.000 description 16
- 239000006185 dispersion Substances 0.000 description 14
- 230000005415 magnetization Effects 0.000 description 14
- 239000000178 monomer Substances 0.000 description 14
- 125000001453 quaternary ammonium group Chemical group 0.000 description 14
- 238000007767 slide coating Methods 0.000 description 14
- 239000011230 binding agent Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000000314 lubricant Substances 0.000 description 10
- 239000005056 polyisocyanate Substances 0.000 description 10
- 229920001228 polyisocyanate Polymers 0.000 description 10
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 230000008859 change Effects 0.000 description 9
- 239000000049 pigment Substances 0.000 description 9
- 229920005862 polyol Polymers 0.000 description 9
- 150000003077 polyols Chemical class 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 229920006163 vinyl copolymer Polymers 0.000 description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 8
- 230000005389 magnetism Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 8
- -1 vinyl halide Chemical class 0.000 description 8
- 230000002378 acidificating effect Effects 0.000 description 7
- 238000013500 data storage Methods 0.000 description 7
- 239000012756 surface treatment agent Substances 0.000 description 7
- 239000004971 Cross linker Substances 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 6
- 239000012459 cleaning agent Substances 0.000 description 6
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 150000004072 triols Chemical class 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
- 125000005907 alkyl ester group Chemical group 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 235000013980 iron oxide Nutrition 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000000080 wetting agent Substances 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 239000003431 cross linking reagent Substances 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 125000005442 diisocyanate group Chemical group 0.000 description 4
- 125000003700 epoxy group Chemical group 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 239000008204 material by function Substances 0.000 description 4
- 125000002560 nitrile group Chemical group 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 3
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- 239000002216 antistatic agent Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 125000006575 electron-withdrawing group Chemical group 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 229920001002 functional polymer Polymers 0.000 description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 229920001610 polycaprolactone Polymers 0.000 description 3
- 239000004632 polycaprolactone Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 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 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 2
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 125000005647 linker group Chemical group 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011356 non-aqueous organic solvent Substances 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 239000011135 tin Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 description 1
- LGEZTMRIZWCDLW-UHFFFAOYSA-N 14-methylpentadecyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCCCCCCCCCCCCC(C)C LGEZTMRIZWCDLW-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- CCJKFLLIJCGHMO-UHFFFAOYSA-N 2-[diethoxyphosphorylmethyl(2-hydroxyethyl)amino]ethanol Chemical compound CCOP(=O)(OCC)CN(CCO)CCO CCJKFLLIJCGHMO-UHFFFAOYSA-N 0.000 description 1
- SZIFAVKTNFCBPC-UHFFFAOYSA-N 2-chloroethanol Chemical compound OCCCl SZIFAVKTNFCBPC-UHFFFAOYSA-N 0.000 description 1
- TWJNQYPJQDRXPH-UHFFFAOYSA-N 2-cyanobenzohydrazide Chemical compound NNC(=O)C1=CC=CC=C1C#N TWJNQYPJQDRXPH-UHFFFAOYSA-N 0.000 description 1
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- PAKCOSURAUIXFG-UHFFFAOYSA-N 3-prop-2-enoxypropane-1,2-diol Chemical compound OCC(O)COCC=C PAKCOSURAUIXFG-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- YNJULFUJAJBWLN-UHFFFAOYSA-N ClCCCCl.Cl Chemical compound ClCCCCl.Cl YNJULFUJAJBWLN-UHFFFAOYSA-N 0.000 description 1
- 241000640882 Condea Species 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 235000021360 Myristic acid Nutrition 0.000 description 1
- TUNFSRHWOTWDNC-UHFFFAOYSA-N Myristic acid Natural products CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 150000001241 acetals Chemical class 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 125000004018 acid anhydride group Chemical group 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- FHTACFVZIAVFCY-UHFFFAOYSA-N buta-1,3-diene;2-methylprop-2-enoic acid;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N.CC(=C)C(O)=O FHTACFVZIAVFCY-UHFFFAOYSA-N 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000001913 cellulose Chemical class 0.000 description 1
- 229920002678 cellulose Chemical class 0.000 description 1
- 239000012986 chain transfer agent Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- QJNYIFMVIUOUSU-UHFFFAOYSA-N chloroethene;ethenyl acetate;furan-2,5-dione Chemical compound ClC=C.CC(=O)OC=C.O=C1OC(=O)C=C1 QJNYIFMVIUOUSU-UHFFFAOYSA-N 0.000 description 1
- 229940090961 chromium dioxide Drugs 0.000 description 1
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 description 1
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 235000014510 cooky Nutrition 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 description 1
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 description 1
- 229940078545 isocetyl stearate Drugs 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 description 1
- 229940011051 isopropyl acetate Drugs 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 description 1
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 1
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000004712 monophosphates Chemical class 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000004043 oxo group Chemical group O=* 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920006287 phenoxy resin Polymers 0.000 description 1
- 239000013034 phenoxy resin Substances 0.000 description 1
- 150000003009 phosphonic acids Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007870 radical polymerization initiator Substances 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- AIUAMYPYEUQVEM-UHFFFAOYSA-N trimethyl(2-prop-2-enoyloxyethyl)azanium Chemical compound C[N+](C)(C)CCOC(=O)C=C AIUAMYPYEUQVEM-UHFFFAOYSA-N 0.000 description 1
- FZGFBJMPSHGTRQ-UHFFFAOYSA-M trimethyl(2-prop-2-enoyloxyethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCOC(=O)C=C FZGFBJMPSHGTRQ-UHFFFAOYSA-M 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/842—Coating a support with a liquid magnetic dispersion
-
- 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
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/11—Magnetic recording head
- Y10T428/115—Magnetic layer composition
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
Abstract
【解決手段】 磁束変調を抑制し、SN比を改善した磁気記録媒体である。この磁気記録媒体は、磁気テープまたは磁気ディスクの形態をとることができる。厚みがより均一な磁気記録層を設けることによって、磁束変調特性を改良することができる。たとえば、磁気記録媒体は、2000エルステッド以上の保磁力と、磁束変調特性の1シグマ標準偏差0.06未満を有することができる。場合によっては、磁束変調特性の1シグマ標準偏差を0.05未満、さらには0.04にまでとすることができる。磁束変調を抑制することで、記憶密度を上げるのを助けることが可能となる。
【選択図】なし
Description
あろう。
E−X−A
式中、Eは電子吸引性基、Aは酸性基そしてXは芳香族部分を含む。Xが芳香族環で、EとAがその芳香族環において互いにメタまたはパラの位置の置換基であれば好ましい。EとAとが互いにパラの位置にあればより好ましい。EとAの基の間の距離が離れているため、EとAとが互いにオルトの位置にあるのに比較して、EとAとが互いにメタまたはパラの位置にある場合の方が表面処理剤の効果がかなり高い。
10B 磁気記録媒体
12 基材
14 キャリア層
16 磁気記録層
18 追加の層
19 下側表面
21 上側表面
Tmag 厚み
20、22、24、26、28 磁化曲線
Mr 磁気残留または残留磁気
Ho 磁化飽和点
Hc 保磁力
30 スライドコーティングシステム
32 バックアップローラー
34 スライドコーター
36、38、40、42 スライドブロック
44 第1の流体スロット
46 第2の流体スロット
48 第3の流体スロット
50 スライド面
52 真空ボックス
53 コーティングビード
56 第1の流体
58 第2の流体
60 第3の流体
62 3層流体構成物
64 第1の流体層
66 第2の流体層
68 第3の流体層
76 磁気記録システム
78 テープドライブハウジング
80 テープカートリッジ
82 テープリール
84 磁気テープ
86 巻取りリール
88A、88B、88C、88D テープガイド
90 磁気読取り/書込みヘッドアセンブリ
92 コントローラ
94 ホストコンピュータ
96 コンピュータインターフェース
Claims (6)
- 基材;および前記基材の上に形成された磁気記録層を含む磁気記録媒体であって、
前記磁気記録層での磁束変調特性の標準偏差が約0.06以下である磁気記録媒体。 - 前記基材と前記磁気記録層との間に形成されたキャリア層をさらに含む、請求項1に記載の媒体。
- 前記磁気記録層の平均の厚みが約0.15μm以下である、請求項1または2に記載の媒体。
- 前記磁気記録層の保磁力が2400エルステッドより大きい、請求項3に記載の媒体。
- 前記磁気記録媒体が磁気記録テープであり、前記磁気記録層がポリマーバインダー中に分散させた金属の磁性粒子を含む、請求項3に記載の媒体。
- 前記磁気記録層での磁束変調特性の標準偏差が約0.05以下である、請求項3に記載の媒体。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/238,161 US6960385B2 (en) | 2002-09-10 | 2002-09-10 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2004103229A true JP2004103229A (ja) | 2004-04-02 |
Family
ID=31887727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003315458A Pending JP2004103229A (ja) | 2002-09-10 | 2003-09-08 | 低標準偏差の磁束変調特性を有する磁気記録媒体 |
Country Status (3)
Country | Link |
---|---|
US (3) | US6960385B2 (ja) |
JP (1) | JP2004103229A (ja) |
DE (1) | DE10340874A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6960385B2 (en) * | 2002-09-10 | 2005-11-01 | Imation Corp. | Magnetic recording medium |
JP2005129150A (ja) * | 2003-10-23 | 2005-05-19 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
US8030376B2 (en) | 2006-07-12 | 2011-10-04 | Minusnine Technologies, Inc. | Processes for dispersing substances and preparing composite materials |
JP5424962B2 (ja) * | 2010-03-31 | 2014-02-26 | 富士フイルム株式会社 | 磁気記録媒体用結合剤、磁気記録媒体用組成物、および磁気記録媒体 |
US10612775B2 (en) * | 2017-06-19 | 2020-04-07 | General Electric Company | Dual-fuel fuel nozzle with air shield |
US11322177B2 (en) * | 2018-03-16 | 2022-05-03 | Sony Corporation | Orientation device, production method for magnetic recording medium, and magnetic recording medium |
Family Cites Families (67)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA557259A (en) | 1955-02-23 | 1958-05-13 | Canadian Kodak Co. Limited | Multiple layer hopper for multiply coating a web |
US3782947A (en) | 1972-01-28 | 1974-01-01 | Eastman Kodak Co | Photographic product with photographically transparent magnetic recording medium |
FR2318442A1 (fr) | 1975-07-15 | 1977-02-11 | Kodak Pathe | Nouveau produit, notamment, photographique, a couche antistatique et procede pour sa preparation |
US4113903A (en) | 1977-05-27 | 1978-09-12 | Polaroid Corporation | Method of multilayer coating |
US4731292A (en) | 1985-11-18 | 1988-03-15 | Konishiroku Photo Industry Co., Ltd. | Magnetic recording medium |
JPS62146433A (ja) | 1985-12-20 | 1987-06-30 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JPS62146432A (ja) | 1985-12-20 | 1987-06-30 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JPS62186966A (ja) | 1986-02-12 | 1987-08-15 | Fuji Photo Film Co Ltd | 塗布方法及び装置 |
US5034271A (en) | 1986-02-28 | 1991-07-23 | Fuji Photo Film Co., Ltd. | Magnetic recording medium |
JPH069671B2 (ja) | 1986-06-25 | 1994-02-09 | 富士写真フイルム株式会社 | 塗布方法 |
JPH0677712B2 (ja) | 1986-09-30 | 1994-10-05 | 富士写真フイルム株式会社 | 塗布装置 |
JP2646251B2 (ja) | 1987-10-20 | 1997-08-27 | 富士写真フイルム株式会社 | 多層同時塗布方法及び装置 |
JPH0649171B2 (ja) | 1988-07-04 | 1994-06-29 | 富士写真フイルム株式会社 | 塗布方法 |
JPH0824874B2 (ja) | 1988-08-15 | 1996-03-13 | 富士写真フイルム株式会社 | 塗布装置 |
US5203922A (en) | 1988-08-15 | 1993-04-20 | Fuji Photo Film Co., Ltd. | Application device |
JPH07106332B2 (ja) | 1988-08-23 | 1995-11-15 | 富士写真フイルム株式会社 | 塗布装置 |
US5258231A (en) | 1988-10-18 | 1993-11-02 | Fuji Photo Film Co., Ltd. | Magnetic recording medium having ferromagnetic powder, a binder containing a specified vinyl chloride copolymer, polar group containing polyurethane resin and a fatty acid amide |
US5119757A (en) | 1989-04-06 | 1992-06-09 | Fuji Photo Film Co., Ltd. | Device for applying liquid to moving web |
JPH02302929A (ja) | 1989-05-17 | 1990-12-14 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
US5108787A (en) | 1990-01-08 | 1992-04-28 | Fuji Photo Film Co., Ltd. | Method for applying magnetic liquid to moving web |
US5184381A (en) | 1990-11-28 | 1993-02-09 | Basf Corporation | Apparatus for producing soft node air entangled yarn |
US5645917A (en) | 1991-04-25 | 1997-07-08 | Fuji Photo Film Co., Ltd. | Magnetic recording medium |
JPH04328741A (ja) | 1991-04-30 | 1992-11-17 | Konica Corp | 磁気記録が可能なハロゲン化銀写真感光材料 |
DE69207545T2 (de) | 1991-10-18 | 1996-08-29 | Inst Tech Precision Eng | Index-Vorschubsystem |
US5965194A (en) | 1992-01-10 | 1999-10-12 | Imation Corp. | Magnetic recording media prepared from magnetic particles having an extremely thin, continuous, amorphous, aluminum hydrous oxide coating |
JP2566096B2 (ja) | 1992-04-14 | 1996-12-25 | 富士写真フイルム株式会社 | 磁気記録媒体 |
JPH06161032A (ja) | 1992-11-26 | 1994-06-07 | Fuji Photo Film Co Ltd | ハロゲン化銀写真感光材料 |
US5413900A (en) | 1993-01-18 | 1995-05-09 | Fuji Photo Film Co., Ltd. | Silver halide photographic material and a manufacturing method therefor |
US5593734A (en) | 1993-03-12 | 1997-01-14 | Eastman Kodak Company | Multiple inlet flow distributor for liquids |
JPH06329732A (ja) | 1993-04-27 | 1994-11-29 | Minnesota Mining & Mfg Co <3M> | 磁性層が非ハロゲン化ビニルコポリマーを混入した磁気記録媒体 |
US5932330A (en) | 1993-09-30 | 1999-08-03 | Imation Corp. | Coated magnetic recording medium, paint for coated magnetic medium and method for producing coated magnetic medium |
US5395743A (en) | 1993-12-22 | 1995-03-07 | Eastman Kodak Company | Photographic element having a transparent magnetic layer and a process of preparing the same |
US5759666A (en) | 1995-12-21 | 1998-06-02 | Minnesota Mining And Manufacturing Company | Carboxylic acid functional polyurethane polymers and blends thereof used in magnetic recording media |
US5501903A (en) | 1994-07-29 | 1996-03-26 | Minnesota Mining And Manufacturing Company | Magnetic recording medium having a binder system including a non halogenated vinyl polymer and a polyurethane polymer each with specified pendant groups |
US5516458A (en) | 1994-08-30 | 1996-05-14 | Eastman Kodak Company | Coating composition used to prepare an electrically-conductive layer formed by a glow discharge process containing tin carboxylate, antimony alkoxide and film-forming binder |
DE69524252T2 (de) | 1994-09-16 | 2002-07-11 | Avery Dennison Corp | Verfahren zur herstellung eines mehrschicht-klebemittels durch extrusionsbeschichtung und beschichtungskopf |
JPH10509255A (ja) | 1994-11-10 | 1998-09-08 | ミネソタ マイニング アンド マニュファクチャリング カンパニー | 帯電防止層を含む写真要素および帯電防止性を有する要素の製造方法 |
CN1174612A (zh) | 1995-02-02 | 1998-02-25 | 美国3M公司 | 涂敷薄液体涂料条的方法和设备 |
US5514528A (en) | 1995-02-17 | 1996-05-07 | Eastman Kodak Company | Photographic element having improved backing layer performance |
IT1280208B1 (it) | 1995-08-03 | 1998-01-05 | Ceda Spa Costruzioni Elettrome | Procedimento di controllo intergabbia del tiro del laminato e relativo dispositivo |
US5597680A (en) | 1995-12-05 | 1997-01-28 | Eastman Kodak Company | Imaging element comprising an auxiliary layer containing solvent-dispersible polymer particles |
US5834174A (en) | 1995-10-24 | 1998-11-10 | Eastman Kodak Company | Photographic elements containing highly crosslinked matting agent |
US5772857A (en) * | 1995-11-21 | 1998-06-30 | Seagate Technology, Inc. | Method of manufacturing CoCrTa/CoCrTaPt bi-layer magnetic thin films |
US5735969A (en) | 1996-03-07 | 1998-04-07 | Imation Corp. | Method of producing acicular magnetic alloy particles |
US5725665A (en) | 1996-05-01 | 1998-03-10 | Minnesota Mining And Manufacturing Company | Coater enclosure and coating assembly including coater enclosure |
DE19618935C2 (de) | 1996-05-10 | 2002-11-28 | Siemens Ag | Gassensor und Verfahren zur Herstellung eines Gassensors |
US5998549A (en) | 1996-05-31 | 1999-12-07 | 3M Innovative Properties Company | Durable, low surface energy compounds and articles, apparatuses, and methods for using the same |
US5837324A (en) | 1996-05-31 | 1998-11-17 | Minnesota Mining And Manufacturing Company | Profiled edge guide |
US5846699A (en) | 1996-09-11 | 1998-12-08 | Eastman Kodak Company | Coating composition including polyurethane for imaging elements |
US6013327A (en) | 1996-10-30 | 2000-01-11 | Fuji Photo Film Co., Ltd. | Slide bead coating method and apparatus |
US5843530A (en) | 1997-01-21 | 1998-12-01 | Minnesota Mining And Manufacturing Company | Method for minimizing waste when coating a fluid with a slide coater |
US5861195A (en) | 1997-01-21 | 1999-01-19 | Minnesota Mining And Manufacturing Company | Method for coating a plurality of fluid layers onto a substrate |
US5849363A (en) | 1997-01-21 | 1998-12-15 | Minnesota Mining And Manufacturing Company | Apparatus and method for minimizing the drying of a coating fluid on a slide coater surface |
AU5799298A (en) | 1997-03-31 | 1998-10-22 | Imation Corp. | Method for applying a coating onto a moving web |
US5804360A (en) | 1997-05-12 | 1998-09-08 | Eastman Kodak Company | Imaging element and aqueous coating compositions containing polyurethane/vinyl polymer dispersions |
US5756272A (en) | 1997-05-19 | 1998-05-26 | Eastman Kodak Company | Simultaneous coatings of stearamide lubricant layer and transparent magnetic recording layer for photographic element |
US5798136A (en) | 1997-05-19 | 1998-08-25 | Eastman Kodak Company | Simultaneous coatings of wax dispersion containing lubricant layer and transparent magnetic recording layer for photographic element |
US5821027A (en) | 1997-05-19 | 1998-10-13 | Eastman Kodak Company | Simultaneous coatings of polymeric lubricant layer and transparent magnetic recording layer for photographic element |
US5866312A (en) | 1997-06-19 | 1999-02-02 | Eastman Kodak Company | Photographic element having surface protective layer |
US6139982A (en) | 1998-11-06 | 2000-10-31 | Imation Corp. | Magnetic recording medium having a binder system including a polyurethane polymer having both phosphonate and quaternary ammonium pendant groups |
US6214530B1 (en) | 1999-06-30 | 2001-04-10 | Tulalip Consultoria Comercial Sociedade Unidessoal S.A. | Base film with a conductive layer and a magnetic layer |
US6280813B1 (en) | 1999-10-08 | 2001-08-28 | International Business Machines Corporation | Magnetic recording media with antiferromagnetically coupled ferromagnetic films as the recording layer |
JP2002015415A (ja) * | 2000-06-29 | 2002-01-18 | Fuji Photo Film Co Ltd | 磁気ディスク |
JP2004505402A (ja) | 2000-07-27 | 2004-02-19 | イメイション・コーポレイション | 磁気記録媒体およびコーティング方法 |
JP2002074641A (ja) * | 2000-08-31 | 2002-03-15 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
US6610426B2 (en) * | 2000-10-12 | 2003-08-26 | Fuji Photo Film Co., Ltd. | Magnetic recording medium containing a binder of trifunctional or higher aliphatic (meth) acrylate compound |
US6960385B2 (en) * | 2002-09-10 | 2005-11-01 | Imation Corp. | Magnetic recording medium |
-
2002
- 2002-09-10 US US10/238,161 patent/US6960385B2/en not_active Expired - Lifetime
-
2003
- 2003-09-05 DE DE10340874A patent/DE10340874A1/de not_active Withdrawn
- 2003-09-08 JP JP2003315458A patent/JP2004103229A/ja active Pending
-
2005
- 2005-09-22 US US11/233,576 patent/US7423840B2/en not_active Expired - Lifetime
- 2005-09-22 US US11/233,832 patent/US20060019126A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE10340874A1 (de) | 2004-03-18 |
US6960385B2 (en) | 2005-11-01 |
US20060019126A1 (en) | 2006-01-26 |
US20060019121A1 (en) | 2006-01-26 |
US20040048106A1 (en) | 2004-03-11 |
US7423840B2 (en) | 2008-09-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20060003191A1 (en) | Magnetic tape and magnetic tape cartridge | |
US7423840B2 (en) | Magnetic tape recording system having tape with defined remanent magnetization | |
JP2004288301A (ja) | 磁気記録媒体 | |
JP4383336B2 (ja) | 磁気テープ | |
JP5450300B2 (ja) | 放射線硬化性塩化ビニル系樹脂組成物およびその製造方法、塩化ビニル系樹脂、磁気記録媒体、ならびに放射線硬化性塩化ビニル系樹脂用保存安定剤 | |
WO2004006229A1 (ja) | 磁気テープ | |
JP4268629B2 (ja) | 磁気記録媒体および磁気記録カートリッジ | |
JP2005158186A (ja) | 磁気記録媒体およびその製造方法 | |
JP2801165B2 (ja) | 磁気記録媒体 | |
JP2008059664A (ja) | 磁気記録媒体 | |
JPH07320919A (ja) | 被着した微粒子及びその製法並びに用途 | |
JPS5811085B2 (ja) | ジキキロクタイ | |
JP2006120261A (ja) | 磁気記録媒体の製造方法 | |
JP2699413B2 (ja) | 磁気記録媒体 | |
JP5501168B2 (ja) | 磁気記録媒体用結合剤およびその製造方法、磁気記録媒体用組成物、ならびに磁気記録媒体 | |
JP2651749B2 (ja) | 磁気記録媒体 | |
JP4204486B2 (ja) | 磁気記録媒体 | |
JPH02132639A (ja) | 磁気記録媒体の製造方法及びその装置 | |
JPH0721546A (ja) | 磁気記録媒体 | |
JP2008103031A (ja) | 磁気記録媒体 | |
JPH08235565A (ja) | 磁気記録媒体 | |
JPH02132640A (ja) | 磁気記録媒体の製造方法 | |
JP2004005896A (ja) | 磁気テープおよび磁気テープカートリッジ | |
JPS62132227A (ja) | 磁気記録媒体 | |
JPH10275321A (ja) | 磁気記録媒体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060907 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20070813 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070821 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20071120 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20071225 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20080527 |