WO2005117004A1 - Metal complexes as light-absorbing compounds in the information layer of optical data supports - Google Patents
Metal complexes as light-absorbing compounds in the information layer of optical data supports Download PDFInfo
- Publication number
- WO2005117004A1 WO2005117004A1 PCT/EP2005/005323 EP2005005323W WO2005117004A1 WO 2005117004 A1 WO2005117004 A1 WO 2005117004A1 EP 2005005323 W EP2005005323 W EP 2005005323W WO 2005117004 A1 WO2005117004 A1 WO 2005117004A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formula
- complexes
- optical data
- azo metal
- light
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 35
- 239000002184 metal Substances 0.000 title claims abstract description 35
- 230000003287 optical effect Effects 0.000 title claims description 33
- 150000001875 compounds Chemical class 0.000 title claims description 21
- 239000000203 mixture Substances 0.000 claims abstract description 70
- 238000010521 absorption reaction Methods 0.000 claims abstract description 23
- 239000010410 layer Substances 0.000 claims description 44
- 239000000758 substrate Substances 0.000 claims description 20
- -1 azo metal complex Chemical class 0.000 claims description 16
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 14
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 claims description 12
- NBUKAOOFKZFCGD-UHFFFAOYSA-N 2,2,3,3-tetrafluoropropan-1-ol Chemical compound OCC(F)(F)C(F)F NBUKAOOFKZFCGD-UHFFFAOYSA-N 0.000 claims description 11
- 239000003446 ligand Substances 0.000 claims description 9
- 239000002250 absorbent Substances 0.000 claims description 8
- 230000002745 absorbent Effects 0.000 claims description 8
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 claims description 8
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 claims description 6
- 239000000969 carrier Substances 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 239000012790 adhesive layer Substances 0.000 claims description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 4
- 125000001153 fluoro group Chemical group F* 0.000 claims description 3
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 230000007774 longterm Effects 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 18
- 239000000243 solution Substances 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000000975 dye Substances 0.000 description 11
- 239000000843 powder Substances 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000002310 reflectometry Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000000049 pigment Substances 0.000 description 6
- 239000000987 azo dye Substances 0.000 description 5
- 238000013500 data storage Methods 0.000 description 5
- 239000008187 granular material Substances 0.000 description 5
- 239000004417 polycarbonate Substances 0.000 description 5
- 229920000515 polycarbonate Polymers 0.000 description 5
- 238000004528 spin coating Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000004922 lacquer Substances 0.000 description 3
- 230000015654 memory Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229940078487 nickel acetate tetrahydrate Drugs 0.000 description 3
- OINIXPNQKAZCRL-UHFFFAOYSA-L nickel(2+);diacetate;tetrahydrate Chemical compound O.O.O.O.[Ni+2].CC([O-])=O.CC([O-])=O OINIXPNQKAZCRL-UHFFFAOYSA-L 0.000 description 3
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 2
- JFCHSQDLLFJHOA-UHFFFAOYSA-N n,n-dimethylsulfamoyl chloride Chemical compound CN(C)S(Cl)(=O)=O JFCHSQDLLFJHOA-UHFFFAOYSA-N 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229940124530 sulfonamide Drugs 0.000 description 2
- 150000003456 sulfonamides Chemical class 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- ZYECOAILUNWEAL-NUDFZHEQSA-N (4z)-4-[[2-methoxy-5-(phenylcarbamoyl)phenyl]hydrazinylidene]-n-(3-nitrophenyl)-3-oxonaphthalene-2-carboxamide Chemical compound COC1=CC=C(C(=O)NC=2C=CC=CC=2)C=C1N\N=C(C1=CC=CC=C1C=1)/C(=O)C=1C(=O)NC1=CC=CC([N+]([O-])=O)=C1 ZYECOAILUNWEAL-NUDFZHEQSA-N 0.000 description 1
- KUGBQWBWWNPMIT-UHFFFAOYSA-N 1,1,2,2,3,3,4,4-octafluoropentan-1-ol Chemical compound CC(F)(F)C(F)(F)C(F)(F)C(O)(F)F KUGBQWBWWNPMIT-UHFFFAOYSA-N 0.000 description 1
- KFSNHOUZAIGMAF-UHFFFAOYSA-N 3-n,3-n-diethylbenzene-1,3-diamine Chemical compound CCN(CC)C1=CC=CC(N)=C1 KFSNHOUZAIGMAF-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- RXQNKKRGJJRMKD-UHFFFAOYSA-N 5-bromo-2-methylaniline Chemical compound CC1=CC=C(Br)C=C1N RXQNKKRGJJRMKD-UHFFFAOYSA-N 0.000 description 1
- 239000004923 Acrylic lacquer Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 241000394591 Hybanthus Species 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001448 anilines Chemical class 0.000 description 1
- 150000005840 aryl radicals Chemical class 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006193 diazotization reaction Methods 0.000 description 1
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- CDRNYKLYADJTMN-UHFFFAOYSA-N pyridine-3-sulfonyl chloride Chemical compound ClS(=O)(=O)C1=CC=CN=C1 CDRNYKLYADJTMN-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- BAZAXWOYCMUHIX-UHFFFAOYSA-M sodium perchlorate Chemical compound [Na+].[O-]Cl(=O)(=O)=O BAZAXWOYCMUHIX-UHFFFAOYSA-M 0.000 description 1
- 229910001488 sodium perchlorate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229920006352 transparent thermoplastic Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/249—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing organometallic compounds
- G11B7/2492—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing organometallic compounds neutral compounds
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
- G11B7/2467—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes azo-dyes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
- G11B2007/24612—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes two or more dyes in one layer
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
- G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
- G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
- G11B7/2534—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycarbonates [PC]
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
- G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
- G11B7/2538—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycycloolefins [PCO]
Definitions
- Metal complexes as non-absorbent compounds in the information layer of optical data carriers are Metal complexes as non-absorbent compounds in the information layer of optical data carriers
- the invention relates to mixtures containing two azo metal complexes, their production and use in the information layer of optical data carriers and optical data carriers as such.
- the next generation of optical data storage media - the DVD - is currently being launched on the market.
- the storage density can be increased by using shorter-wavelength laser radiation (635 to 660 nm) and a higher numerical aperture NA of the objective lens used.
- the recordable format in this case is the DVD-R.
- the JJR wavelength 780 nm of the CD-R lies at the foot of the long flank of the absorption peak of the dye
- the red wavelength 635 nm or 650 nm of the DVD-R lies at the foot of the short wavelength flank of the absorption peak of the dye.
- This concept is described in JP-A 02 557 335, JP-A 10 058 828, JP-A 06 336 086, JP-A 02 865 955, WO-A 99/17 284 and US-A 5 266 699 on the area 450 nm working wavelength extended on the short-wave flank and the red and IR range on the long-wave flank of the absorption peak.
- the writable information layer made of light-absorbing organic substances should have a morphology which is as amorphous as possible in order to keep the noise signal as small as possible when writing or reading.
- a morphology which is as amorphous as possible in order to keep the noise signal as small as possible when writing or reading.
- the amorphous layer of light-absorbing substances should preferably have a high heat resistance, since otherwise further layers of organic or inorganic
- Material that is applied to the light-absorbing information layer by sputtering or vapor deposition form diffuse interfaces via diffusion and thus adversely affect the reflectivity.
- a light absorbing substance can be too low Diffusion of heat resistance at the interface to a polymeric carrier diffuse therein and in turn adversely affect the reflectivity.
- An excessively high vapor pressure of a light-absorbing substance can sublimate during the above-mentioned sputtering or vapor deposition of further layers in a high vacuum and thus reduce the desired layer thickness. This in turn leads to a negative influence on the reflectivity.
- JP 11-310 728 describes an optical recording medium which contains certain azo metal complexes in its information layer. These azo metal complexes contain azo dyes which must contain at least 2 fluorine atoms. The azo dyes further contain a group of the formula -NH-S0 2 -Y, where Y is an alkyl or aryl radical.
- the optical data storage is suitable for a write and read laser wavelength of 630-660 nm.
- JP 2004 042504 has disclosed pigment compositions and optical data memories produced therewith, the pigment compositions containing a pigment (1) and a pigment (2) which have different recording properties, the extinction coefficients of the two pigments being unequal and the absorption ratio given
- Preferred pigments are fluorine-containing azo metal complexes of a certain formula.
- the object of the invention is accordingly to provide suitable connections which meet the high requirements (such as light stability, favorable signal-to-noise ratio, and damage-free)
- the substrate material for use in the information layer in a write-once optical data carrier, in particular for high-density recordable optical data storage formats in a laser wavelength range from 600 to 700 nm.
- mixtures of two azometal complexes 1 and 2 as light-absorbing compounds can meet the above-mentioned requirement profile particularly well and provide at least as good optical data storage media as those known from JP-A-2004 042504 if a certain mass ratio, absorption ratio and refractive index ratio at a certain laser wavelength of the two components.
- the invention therefore relates to a mixture comprising at least two azo metal complexes 1 and 2, the mass ratio of the two complexes being 0.2 ⁇ C 1 / c 2 ⁇ 10, the absorption ratio at a laser wavelength of 650 nm 1 ⁇ k 2 k ⁇ 5 and the refractive index ratio at a laser wavelength of 650 nm be 1.05 ⁇ n 2 / n ⁇ ⁇ 1.5.
- These two azo metal complexes 1 and 2 are preferably those with the longest wavelength absorption maximum of Azometal complex 1 in the film is at least 50 nm, in particular at least 60 nm shorter than the laser wavelength 650 nm and the longest wavelength absorption maximum of the azometal complex 2 in the film is 30-60 nm, in particular 40-60 nm shorter than the laser wavelength 650 nm.
- “In the film” means the measurement of the spectral data of the azo metal complexes in a glass-like film on quartz glass or on a plastic substrate, for example made of polycarbonate. Such a film is produced, for example, from a solution of the azo metal complex by
- the azo metal complexes 1 and 2 contained in the preferred mixtures according to the invention preferably contain no fluorine atoms.
- the mass ratio is preferably 0.5 ⁇ c ⁇ / c 2 ⁇ 5, particularly preferably 1 ⁇ c ⁇ / c 2 ⁇ 3, very particularly preferably 1 ⁇ c ⁇ / c 2 ⁇ 2.
- the absorption ratio is preferably 1 ⁇ k 2 / k ⁇ ⁇ 4, particularly preferably 1.5 ⁇ k 2 / k ⁇ ⁇ 4, very particularly preferably 1.5 ⁇ k 2 / k ⁇ ⁇ 3.
- the refractive index ratio is preferably 1.05 ⁇ n 2 / nj ⁇ 1.5, particularly preferably 1.055 ⁇ n 2 / n ⁇ ⁇ 1.3, very particularly preferably 1.06 ⁇ n 2 / n ⁇ ⁇ 1.2.
- a suitable azo metal complex 1 (c l5 ki, ni) is, for example, one of the ligands of the formula (LT)
- a suitable azo metal complex 2 (c 2 , k 2 , n 2 ) is, for example, one of the ligands of the formula (LDJ
- Suitable azo metal complexes 1 are, for example, those which contain ligands of the formula (LX)
- Suitable azo metal complexes 2 are, for example, those which contain ligands of the membrane (LXX)
- the metal complexes 1 and 2 Hegen preferably as 1: 2 metal: azo complexes of the formula (Ia) M 2+ (L-) 2 (Ia)
- M 2+ stands for a divalent metal
- L stands for one of the ligands of the formers (LI) to (LV).
- M 2+ is preferably Ni 2+ , Cu 2+ or Co 2+ .
- the metal M 2+ is preferably Ni + .
- azometal complex 1 corresponds to at least one formula from the group (LIa) to (purple) and (LXa) to (LXVLTJa):
- the azo metal complex 2 corresponds to at least one formula from the group (LITYes) to (LVa):
- the azometal complexes of the formulas (LIa) to (LVa) have the following k-values and n-values as well as the longest-wave maximum / shoulder at the wavelength ⁇ in the film at 650 nm:
- Mixtures containing a complex of the formula (LIa) and one of the complexes of the formulas (LXXIa) to (LXXTVa) are also preferred.
- Mixtures containing a complex of the formula (LUa) and one of the complexes of the formulas (LXXa) to (LXXTVa) are also preferred.
- Mixtures containing the complex of the formula (LIa) and one of the complexes of the formulas (LXXIa) or (LXXTVa) are particularly preferred.
- Mixtures containing the complex of the formula (LUa) and one of the complexes of the formulas (LXXa), (LXXIa) or (LXXTVa) are also particularly preferred.
- Mixtures containing one of the complexes of the formulas (LXa) and (LXIa) to (LXVJJIa) and one of the complexes of the formulas (LILTa) to (LVa) are also preferred. Mixtures containing one of the complexes of the formulas (LXa), (LXTfa), (LXIIIa) are particularly preferred. or (LXVUa) and one of the complexes of the formulas (LITIa) to (LVa). Mixtures containing the complex of the formula (LXVJJa) and one of the complexes of the formulas (LLTIa) to (LVa) are very particularly preferred. Mixtures comprising the complex of the formula (LXVUa) and the complex of the formula (LIVa) are particularly preferred.
- the mixtures according to the invention can of course also contain other org. contain absorbent compounds.
- the mixtures according to the invention preferably consist of more than 95% by weight, in particular more than 98% by weight, of the two azo metal complexes 1 and 2.
- the mixtures according to the invention are marketed in particular as powders or granules or as a solution with a solids content of at least 2% by weight.
- the granulate form is preferred, in particular granules with an average particle size of 50 ⁇ m to 10 mm, in particular 100 to 800 ⁇ m.
- Such granules can be produced, for example, by spray spraying.
- the granules are particularly characterized by their low dust level.
- the mixtures according to the invention are notable for good solubility. They are readily soluble in non-fluorinated and fluorinated alcohols. Fluorinated alcohols are preferred. Such alcohols are, for example, those with 3 to 6 carbon atoms, preferably propanol, butanol, pentanol, hexanol, diacetone alcohol, 2,2,3,3-tetrafluoropropanol, octafluoropentanol or else mixtures of these alcohols, such as, for. B. propanol / diacetone alcohol, butanol / diacetone alcohol,
- Butanol / hexanol Preferred mixing ratios for the listed mixtures are, for example, 80:20 to 99: 1, preferably 90:10 to 98: 2.
- solutions containing at least one organic solvent and at least 1% by weight, preferably at least 2% by weight, particularly preferably at least 5% by weight, based in each case on the solution, of the mixture according to the invention are also preferred.
- Solvents are used 2,2,3, 3-tetrafluoropropanol, propanol, butanol, pentanol, hexanol, diacetone alcohol, dibutyl ether or heptanone or mixtures thereof. Especially 2,2,3,3-tetrafluoropropanol is preferred. Butanol is also particularly preferred. Butanol / diacetone alcohol in a mixing ratio of 90:10 to 98: 2 is also particularly preferred.
- the solutions according to the invention preferably contain only the mixtures according to the invention consisting of more than 95% by weight, in particular more than 98% by weight, of the two azo metal complexes 1 and 2.
- the invention further relates to the use of the mixtures according to the invention as highly absorbent compounds in the information layer of write-once optical data carriers.
- the optical data carrier is preferably written and read with red laser light, in particular with a wavelength in the range of 600-700 nm, particularly preferably in the range of 625-660 nm.
- the invention further relates to an optical data carrier, comprising a preferably transparent substrate, optionally already coated with one or more reflection layers, on the surface of which an information layer which can be written on with light, optionally one or more reflection layers and optionally a protective layer or another
- Substrate or a cover layer are applied, which can be written and read with red light, preferably with a wavelength in the range from 600-700 nm, preferably from 620 to 680 nm, very particularly preferably from 625 to 660 nm, preferably laser light, where the information layer contains a light-absorbing compound and optionally a binder, characterized in that the mixture according to the invention is used as the high-absorbing compound.
- An optical data carrier is preferred, containing a preferably transparent substrate, on the surface of which an information layer which can be written on with light, one or more reflection layers and a protective layer or a further substrate or a cover slide are applied, which is covered with red light, preferably with a wavelength in the range of 600-
- 700 nm preferably from 620 to 680 nm, very particularly preferably from 625 to 660 nm, preferably laser light, can be written and read, the information layer containing a high-absorption compound and possibly a binder, characterized in that the mixture according to the invention is used as the high-absorption compound is used.
- the highly absorbent compound should preferably be thermally changeable.
- the thermal change preferably takes place at a temperature ⁇ 600 ° C., particularly preferably at a temperature ⁇ 400 ° C., very particularly preferably at a temperature ⁇ 300 ° C., in particular > 200 ° C.
- Such a change can be, for example, a decomposition or chemical change in the chromophoric center of the highly absorbent compound.
- the preferred embodiment of the highly absorbent compounds in the optical data memory according to the invention corresponds to the preferred embodiments of the mixture of azo metal complexes according to the invention.
- it is a mixture comprising a complex 1 of the formula (LIa) or (LUa) and as complex 2 one of the formulas (LLUa) to (LVa) and aHe other preferred, particularly preferred, very particularly preferred and outstanding listed above preferred blends.
- the information layer preferably contains only a mixture according to the invention consisting of more than 95% by weight, in particular more than 98% by weight, of the two azo metal complexes 1 and 2 as the high-absorption compound.
- the high-absorbency compounds used according to the invention guarantee a sufficiently high reflectivity (preferably> 10%, in particular> 20%, very particularly> 40%) of the optical data carrier in the blank state and a sufficiently high absorption for the thermal degradation of the information layer under spotlighting with focused
- the contrast between written and unwritten areas on the data carrier is realized by the change in reflectivity of the amputee as well as the phase of the incident light by the optical properties of the information layer which have changed after thermal degradation.
- the light-absorbing compounds used according to the invention guarantee a high light resistance of the unwritten optical data carrier and of the information written on the data carrier against daylight, sunlight or under increased artificial radiation to imitate daylight.
- the high-absorbency compounds used according to the invention guarantee a high level
- Sensitivity of the optical data carrier to red laser light of sufficient energy so that the data carrier can be written at high speed > 2x,> 4x,> 8x.
- the high-absorbency compounds preferably used according to the invention are stable enough so that the disk made with them fulfills the required climatic test.
- mixtures of azo metal complexes according to the invention are based on the optical
- Data carriers are preferably applied by spin coating. As a rule, they are used alone. However, such mixtures according to the invention can also be mixed with one another or with other dyes with similar spectral properties.
- the information layer can contain additives such as binders, wetting agents, stabilizers, thinners and sensitizers and other constituents.
- the solutions according to the invention listed above are preferably used for spin coating.
- the optical data storage device can include further information
- Wear layers such as metal layers, dielectric layers and protective layers.
- Metals and dielectric layers serve u. a. to adjust the reflectivity and the heat balance. Depending on the laser wavelength, metals can be gold, silver, aluminum, alloys of these metals, etc. his.
- Dielectric layers are, for example, silicon dioxide and silicon nitride.
- Protective layers are, for example, photocurable lacquers, (pressure-sensitive) adhesive layers and
- Pressure-sensitive adhesive layers mainly consist of acrylic adhesives.
- Protective foils are preferably made of translucent material, preferably plastic films. Suitable materials are, for example, polycarbonate, copolycarbonates, PMMA and cyclic polyolefins.
- the thickness is, for example, 5 to 200 ⁇ m, preferably 10 to 180 ⁇ m, particularly preferably 20 to 150 ⁇ m, very particularly preferably 50 to 120 ⁇ m.
- Photocurable lacquers are, for example, UV-curable lacquers. These are, for example, acrylates and metacrylates, such as those from P.K.T. Oldring (Ed.), Chemistry &
- the thickness is, for example, 5 to 200 ⁇ m, preferably 10 to 180 ⁇ m, particularly preferably 20 to 150 ⁇ m, very particularly preferably 50 to 120 ⁇ m.
- the optical data carrier preferably contains at least one substrate.
- Substrate material is preferably transparent. Its thickness is preferably 0.3 mm, or more preferably at least 0.6 mm.
- Suitable substrate materials are preferably transparent thermoplastics or thermosets. Suitable thermoplastics are, for example, polycarbonate, copolycarbonates, PMMA and cyclic polyolefins.
- the optical data carrier has, for example, the following layer structure (cf. FIG. 1): a preferably transparent substrate (11), an information layer (12), optionally a reflection layer (13), optionally an adhesive layer (14), another preferably transparent substrate ( 15).
- the invention furthermore relates to optical data media according to the invention described with red light, preferably with light having a wavelength of 600-700 nm, in particular 620-660 nm, preferably 625 to 660 nm, in particular laser.
- ⁇ ma 553 nm (methylene chloride)
- a solution of the concentration of 20 g / l of a dye mixture in 2,2,3,3-tetrafluoropropanol was prepared at room temperature.
- the dye mixture consisted of three parts by mass of the azometal complex of the formula (LIa) of Example 1 and two parts by mass of the AzometaU complex of the formula (LTVa) of Example 4.
- This solution was applied to a pregrooved polycarbonate substrate by means of spin coating.
- the pregrooved polycarbonate substrate was produced as a disk using injection molding. The dimensions of the disc and the groove structure corresponded to those that are usually used for DVD + R.
- the disk with the dye layer as the information carrier was sputtered with 100 nm silver.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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DE102004026708A DE102004026708A1 (en) | 2004-05-28 | 2004-05-28 | Mixture of two metal azo complexes useful as a light absorber in the information layer of a write-once optical data carrier |
DE102004026708.1 | 2004-05-28 | ||
DE102004043826A DE102004043826A1 (en) | 2004-09-10 | 2004-09-10 | Mixture of two metal azo complexes useful as a light absorber in the information layer of a write-once optical data carrier |
DE102004043826.9 | 2004-09-10 |
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WO2005117004A1 true WO2005117004A1 (en) | 2005-12-08 |
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PCT/EP2005/005323 WO2005117004A1 (en) | 2004-05-28 | 2005-05-14 | Metal complexes as light-absorbing compounds in the information layer of optical data supports |
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TW (1) | TW200613458A (en) |
WO (1) | WO2005117004A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11310728A (en) * | 1998-04-28 | 1999-11-09 | Mitsubishi Chemical Corp | Azo metal chelate dye and optical recording medium using this dye |
US20020051941A1 (en) * | 2000-04-17 | 2002-05-02 | Mitsubishi Chemical Corporation | Optical recording medium |
JP2004042504A (en) * | 2002-07-12 | 2004-02-12 | Matsushita Electric Ind Co Ltd | Coloring matter composition and optical recording medium using the same |
-
2005
- 2005-05-14 WO PCT/EP2005/005323 patent/WO2005117004A1/en active Application Filing
- 2005-05-27 TW TW094117333A patent/TW200613458A/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11310728A (en) * | 1998-04-28 | 1999-11-09 | Mitsubishi Chemical Corp | Azo metal chelate dye and optical recording medium using this dye |
US20020051941A1 (en) * | 2000-04-17 | 2002-05-02 | Mitsubishi Chemical Corporation | Optical recording medium |
JP2004042504A (en) * | 2002-07-12 | 2004-02-12 | Matsushita Electric Ind Co Ltd | Coloring matter composition and optical recording medium using the same |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 02 29 February 2000 (2000-02-29) * |
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05) * |
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