CN1137837A - 光学信息记录媒体及其制造方法 - Google Patents
光学信息记录媒体及其制造方法 Download PDFInfo
- Publication number
- CN1137837A CN1137837A CN95191092A CN95191092A CN1137837A CN 1137837 A CN1137837 A CN 1137837A CN 95191092 A CN95191092 A CN 95191092A CN 95191092 A CN95191092 A CN 95191092A CN 1137837 A CN1137837 A CN 1137837A
- Authority
- CN
- China
- Prior art keywords
- dyestuff
- coloring material
- plastic substrate
- recording medium
- dye
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title abstract description 12
- 238000004519 manufacturing process Methods 0.000 title description 3
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 239000004033 plastic Substances 0.000 claims abstract description 24
- 229920003023 plastic Polymers 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 18
- 239000000975 dye Substances 0.000 claims description 70
- 239000000463 material Substances 0.000 claims description 51
- 238000004040 coloring Methods 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 33
- 239000004417 polycarbonate Substances 0.000 claims description 19
- 229920000515 polycarbonate Polymers 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 15
- 150000002148 esters Chemical class 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- 238000009792 diffusion process Methods 0.000 description 9
- 235000011837 pasties Nutrition 0.000 description 9
- 239000008187 granular material Substances 0.000 description 8
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 8
- -1 anthraquinonyl Chemical group 0.000 description 6
- 239000003086 colorant Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000004594 Masterbatch (MB) Substances 0.000 description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 4
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 3
- 150000004056 anthraquinones Chemical class 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (1R)-1,3-butanediol Natural products CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 229940058015 1,3-butylene glycol Drugs 0.000 description 2
- QPQKUYVSJWQSDY-UHFFFAOYSA-N 4-phenyldiazenylaniline Chemical compound C1=CC(N)=CC=C1N=NC1=CC=CC=C1 QPQKUYVSJWQSDY-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 229920000305 Nylon 6,10 Polymers 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 235000019437 butane-1,3-diol Nutrition 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 230000019612 pigmentation Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 2
- IMYZYCNQZDBZBQ-UHFFFAOYSA-N (+-)-8-(cis-3-octyl-oxiranyl)-octanoic acid Natural products CCCCCCCCC1OC1CCCCCCCC(O)=O IMYZYCNQZDBZBQ-UHFFFAOYSA-N 0.000 description 1
- NDDLLTAIKYHPOD-ISLYRVAYSA-N (2e)-6-chloro-2-(6-chloro-4-methyl-3-oxo-1-benzothiophen-2-ylidene)-4-methyl-1-benzothiophen-3-one Chemical compound S/1C2=CC(Cl)=CC(C)=C2C(=O)C\1=C1/SC(C=C(Cl)C=C2C)=C2C1=O NDDLLTAIKYHPOD-ISLYRVAYSA-N 0.000 description 1
- SMKKEOQDQNCTGL-ZETCQYMHSA-N (2s)-2-[(2-nitrophenoxy)methyl]oxirane Chemical compound [O-][N+](=O)C1=CC=CC=C1OC[C@H]1OC1 SMKKEOQDQNCTGL-ZETCQYMHSA-N 0.000 description 1
- BKUSIKGSPSFQAC-RRKCRQDMSA-N 2'-deoxyinosine-5'-diphosphate Chemical compound O1[C@H](CO[P@@](O)(=O)OP(O)(O)=O)[C@@H](O)C[C@@H]1N1C(NC=NC2=O)=C2N=C1 BKUSIKGSPSFQAC-RRKCRQDMSA-N 0.000 description 1
- ZPSZXWVBMOMXED-UHFFFAOYSA-N 2-(2-bromo-5-chlorophenyl)acetic acid Chemical compound OC(=O)CC1=CC(Cl)=CC=C1Br ZPSZXWVBMOMXED-UHFFFAOYSA-N 0.000 description 1
- BKMAEERFCKIKJR-UHFFFAOYSA-N 2-tridecoxycarbonylbenzoic acid Chemical compound CCCCCCCCCCCCCOC(=O)C1=CC=CC=C1C(O)=O BKMAEERFCKIKJR-UHFFFAOYSA-N 0.000 description 1
- JZGUXCXDBKBCDN-UHFFFAOYSA-N 21295-57-8 Chemical compound C12=C3C(=O)C4=CC=CC=C4C1=CC(=O)N(C)C2=CC=C3NC1CCCCC1 JZGUXCXDBKBCDN-UHFFFAOYSA-N 0.000 description 1
- SIXWIUJQBBANGK-UHFFFAOYSA-N 4-(4-fluorophenyl)-1h-pyrazol-5-amine Chemical compound N1N=CC(C=2C=CC(F)=CC=2)=C1N SIXWIUJQBBANGK-UHFFFAOYSA-N 0.000 description 1
- VJUKWPOWHJITTP-UHFFFAOYSA-N 81-39-0 Chemical compound C1=CC(C)=CC=C1NC1=CC=C2C3=C1C(=O)C1=CC=CC=C1C3=CC(=O)N2C VJUKWPOWHJITTP-UHFFFAOYSA-N 0.000 description 1
- HSRJKNPTNIJEKV-UHFFFAOYSA-N Guaifenesin Chemical compound COC1=CC=CC=C1OCC(O)CO HSRJKNPTNIJEKV-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- GCAIEATUVJFSMC-UHFFFAOYSA-N benzenetetracarboxylic acid Natural products OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1C(O)=O GCAIEATUVJFSMC-UHFFFAOYSA-N 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- YLNJGHNUXCVDIX-UHFFFAOYSA-N bis(2-methylpropyl) perylene-3,9-dicarboxylate Chemical compound C=12C3=CC=CC2=C(C(=O)OCC(C)C)C=CC=1C1=CC=CC2=C1C3=CC=C2C(=O)OCC(C)C YLNJGHNUXCVDIX-UHFFFAOYSA-N 0.000 description 1
- 229940106691 bisphenol a Drugs 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- PXFOUACPROHHPK-KVVVOXFISA-N ethene;(z)-octadec-9-enoic acid Chemical group C=C.CCCCCCCC\C=C/CCCCCCCC(O)=O PXFOUACPROHHPK-KVVVOXFISA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- TVRGPOFMYCMNRB-UHFFFAOYSA-N quinizarine green ss Chemical compound C1=CC(C)=CC=C1NC(C=1C(=O)C2=CC=CC=C2C(=O)C=11)=CC=C1NC1=CC=C(C)C=C1 TVRGPOFMYCMNRB-UHFFFAOYSA-N 0.000 description 1
- IZMJMCDDWKSTTK-UHFFFAOYSA-N quinoline yellow Chemical compound C1=CC=CC2=NC(C3C(C4=CC=CC=C4C3=O)=O)=CC=C21 IZMJMCDDWKSTTK-UHFFFAOYSA-N 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 229940066675 ricinoleate Drugs 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 125000005591 trimellitate group Chemical group 0.000 description 1
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
- G11B23/40—Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
- B29D17/005—Producing optically read record carriers, e.g. optical discs
-
- 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
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/002—Coloured
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
-
- 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
-
- 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]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/913—Material designed to be responsive to temperature, light, moisture
-
- 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
- Y10T428/21—Circular sheet or circular blank
Abstract
一种光学信息记录媒体，具有一用来光学读出信息信号的反射层。它包括一塑料基片。该基片用染料着色，使得记录在该媒体上的信息种类可以一眼看出，而无论该信息是诸如游戏程序，音乐信息，还是其它类信息。通常，当在基片中混有染料等杂质时，读出器的光学系统会受到影响，不能容易地读出数据。由于染料的颗粒减小到50μm，所以消除了对光学系统的影响。
Description
本发明涉及一种通过激光来光学地读出信息信号的信息记录媒体，具体来讲涉及这样一种光学信息记录媒体，其通过对其着色，可采用目视检查当即确定其种类或用途。
在所谓的CD(压缩光盘)中，那些其上数字记录了音频信号的CD目前十分盛行。最近，开发了一种其上记录了计算机程序或数据的所谓CD-ROM(只读光盘)，增加了CD的种类及其应用领域。
随着CD种类和应用的增加，产生了对CD进行辨别区分的装置的需要。例如，如果根据CD的种类和用途为CD赋予不同的颜色，那么用户便可很快地对CD作出辨别。
为CD上色，最简单容易的方法是为塑料基片着上有色物质。
在为塑料着色的方法中，已知这样一种方法，在该方法中预备一着色的化合物，随后用一制模装置制造一着色的模制物。还有其他已知的方法，例如：一种方法包括将称作干颜料的粉末状着色剂与无色的树脂混合(干混法)并使混合产物散布于制模装置中以产生一着色的模制物；一种方法包括采用一种无色的树脂稀释一着色剂，并采用所得到的着色剂来着色，其中这种着色剂是通过扩散高密度的染料或颜料即所谓的母料而得到的；以及一种称作液体着色的方法，包括将染料扩散于液体装置中，并采用泵定量地提供所得到的糊状着色剂。
通常，染料很容易溶于塑料且扩散性很好。因而，采用市面上的染料通过干混法可以得到令人满意的着色模制品。
然而，由于CD不但对表面而且对各种光学性能有要求，因此上述方法的简单应用不足以得到满意的效果。
本发明的目的是提供一种光学信息记录媒体，该种媒体着上了颜色，可以立即识别出其种类及用途等等，并具有优越光学性能。本发明的另一目的是提供一种生产这种光学信息记录媒体的方法。
为实现上述目的，本发明人长期从事研究并得出结论，混合在塑料基片中的着色物质颗粒的大小在光学信息记录媒体重放数据时，严重影响着错误率。
本发明便是基于这一概念而完成的。即，本发明提供一种光学信息记录媒体，其包括一由着色物质混合物着色的塑料基片，和一信号记录部分，从信号记录部分中可光学地读出信息信号，其中混入塑料基片的着色物质颗粒的大小不超过50μm。
本发明还提供一种制造光学信息记录媒体的方法，包括下列步骤：将着色物质扩散于扩散性媒体中以产生液体着色物质；将液体着色物质通过一过滤器以去除粗大颗粒，所得到液体着色物质的最大染料尺寸不超过50μm；并将液体着色物质提供给一注射制模装置的树脂注射进料器，以注射成型塑料基片。
在本发明中用来为塑料基片着色的例如染料的着色物质所要求的基本特性是对作为塑料基片材料的聚碳酸脂成模温度的耐受能力，及得到所需要的颜色的能力。最重要的是染料在聚碳酸脂中的完全溶解和扩散。然而，取决于不同的染料种类，染料有时以固体颗粒形式残留下来。如果出现了这种固体颗粒，便会产生各种诸如错误率增加的与CD性能有关的不利影响。
为解决上述问题，本发明人进行了多种研究且发现，如果在聚碳酸脂中的染料固体颗粒大小为近似μm，则会产生上述不利影响。本发明人为解决这一问题进行了许多探索。
这些方法包括：
(1)在普通染料与聚碳酸脂干混情况下用注射成模设备加强搅拌，用来加速染料溶解，并制成最终物质的方法；
(2)采用挤压机制备着色化合物并成形最终着色化合物的方法；及
(3)制备染料母料并成形母料的方法。
即使采用上述方法得到的CD的性能比简单的干染料混合得到的CD性能有少许改进，但还是不够的。可能的原因是，对于上述方法(1)，会产生由于干染料的分散而造成的污染。最主要的不利之处是加强搅拌会降低生产率和经济性。
对于方法(2)，聚碳酸脂分子量的增加会影响性能且由于污染造成废料率的增加。对于方法(3)，存在母料不稳定稀释和污染的问题。
本发明者对一种通过在液体溶剂中扩散染料得到一种糊状着色物质，并将所得到的着色物质注射入制模装置的一较低部分成型的方法，进行了调研。
采用这种被调研的方法，通过三个辊子将多种染料扩散于一种溶剂中并在糊状下使用。该方法制得的CD的废料率约为90％，是一个不可接受的值。可能的原因是在着色物质内的部分染料没有充分溶解，并作为尺寸为100μm或者更大的缺陷留在聚碳酸脂内，它由作为核心的粗大颗粒及外围的半溶解的周围部分组成。
为解决这种缺点，着色物质由40μm或更小的染料扩散颗粒形成，且CD以同样方式来模制以检查废料率。发现得到的废料率不超过5％。本发明是基于这些结果得到的。
同时，根据本发明需要的着色物质的染料颗粒的大小随染料种类的不同而不同。可能的起作用的因素在于染料与聚碳酸脂的相容性及染料的熔点。例如，对于溶剂R.135一种perinon基的染料就很难与CD的特性相适应。可能的原因是由于染料的溶点为307℃，接近或高于聚碳酸脂的制模温度，因而不能得到满意的扩散。总之，最好采用这样的方法，在模制CD的聚碳酸脂基层中应不出现染料固体颗粒，或者至少其固体颗粒尺寸不大于50μm。
根据本发明，可采用诸如颜料或染料等可选的着色物质。实际中最好使用染料(dyestuff)。可采用的染料包括蒽醌、杂环族化合物、次甲基、pelynon、pelylene或硫靛基染料。如果除了上述特性之外，同时考虑可能对金属模具造成的污染的升华性，蒽醌基的染料可以是溶剂红52，溶剂红149，溶剂蓝94和溶剂绿3。杂环族化合物基的染料可以是溶剂黄33，溶剂黄54和溶剂黄105。次甲基基的染料包括溶剂黄93和溶剂橙80。pellynon基染料可以是溶剂橙60和溶剂红135。pellylene基的染料可以是溶剂绿5。最佳的硫靛基染料包括还原红1。这些可单独或者混合使用。
根据本发明，诸如上述染料的着色物质最好扩散在溶剂中，以便在液体着色物质状态下使用。使用的溶剂包括高沸点有机溶剂和增塑料剂。作为溶剂所需的基本性能包括耐受约300～350℃制模温度的能力，不造成聚碳酸脂分子量下降的能力，以及不影响模制CD的诸如抗压强度，热变形温度、开裂或收缩等机械性能，更不用说要有作为染料的适应性，即安全性，染料扩散稳定性及通过泵供给的可测量性。
从上述原因，考虑到可用性，花费和各种物理性能，最好选用增塑剂。这些溶剂可单独或者结合使用，对此无限制。
作为增塑剂的例子有苯二酸酯基增塑剂，如邻苯二甲酸二异癸酯(DIDP)或邻苯二甲酸十三烷基酯(DTDP)；环氧树脂基增塑剂，如环氧化豆油(ESO)，4、5-环氧环己烷-1、2-二羧酸-2-乙基己基(E-PS)，4、5-环氧环己烷-1、2-二异癸酯，油酸缩水甘油酯，9、10-环氧硬脂酸烯丙基，9，10-环氧硬脂酸-2-乙基己基，环氧牛脂(toll)油脂肪酸-2-乙基己基和双酚A缩小甘油醚；磷酸酯基增塑剂，如磷酸三丁酯(TBP)，磷酸三苯酯(TPP)，甲苯基二苯基磷酸酯或磷酸三丙二醇酯；脂肪酸酯基增塑剂，如硬脂酸丁酯(BS)，乙酰蓖麻酸甲酯(MAR)或乙酰蓖麻酸乙酯(EAR)；增塑剂，如偏苯三酸三辛酯，偏苯三酸酯，二己戊四醇酯或苯四酸酯；和聚酯基增塑剂，如聚(丙二醇，己二酸)酯，聚(1、3-丁二醇，己二酸)酯，聚(丙二醇，癸二酸)酯，聚(1、3-丁二醇，癸二酸)酯，聚(丙二醇，苯二甲酸)酯，聚(1、3-丁二醇，己二酸)酯，聚(乙二醇，己二酸)酯或聚(1、6-己二醇，己二酸)酯。
添加添加剂也可有效地改善溶剂的扩散和存放的稳定性。
本发明可应用于任何光学信息记录媒体，用来读出信息信号。例如，其可应用于光盘，如CD或CD-ROM，其中在光盘的塑料基片上形成有以凹陷和平台(land)形式的信息凹坑(Pit)，且还有一作为信号记录部分的反射层。
虽然在上面的描述中使用聚碳酸酯作为塑料基体的材料，但除了聚碳酸酯，其他任何合适的塑料材料均可使用。
在使用染料等着色物质为诸如CD的光学信息记录媒体的塑料基体上色时，如果混合着色物质颗粒的尺寸超过50μm，则得到的光学记录媒体的光学性能恶化，使得当重放其上的数据时，错误率将增大。相反，如果混合着色物质颗粒的尺寸不超过50μm，光盘将保持足够好的光学性能，便有可能使错误率升高造成的废料率下降。
根据本发明，由于混合入塑料基片的染料的颗粒尺寸被优化，因而有可能得到这样的光学信息记录媒体，通过其颜色可立即识别出其种类和用途，且其具有优良的光学性能。
至于染料的混合比，0.05～0.2克的染料对14.5～17.0克的塑料基片材料较适于实现方便盘色目视鉴别的目的。尽管根据用途，染料添加量可超过这一范围，但塑料基片本身将变脆。
图1是根据本发明实施例制备的光盘主要部分的截面简图。
下文将参照示例性的实验结果详细介绍本发明。
(1)纯化染料的方法
采用索格利特萃取器(Soxhlet extractor)对染料进行纯化。由TOYO ROSHI CO.LTD.生产的圆柱状滤纸作为过滤器，并设置-325-网眼(mesh)的不锈钢屏。染料的纯化采用甲基氯化合物作为萃取溶液，将罩式加热器调整至55℃，反复回流来去除杂质及异物。被纯化的染料的结晶颗粒从圆底烧瓶取出，并在5℃条件下干燥8小时以去除甲基氯化物，得到纯净染料
(2)染料颗粒的粉碎和扩散
由染料纯化方法(1)生产的染料以任选比例(重量比)与增塑剂(聚丙烯增塑剂)预混合，染料颗粒经三个辊子粉碎后进行扩散。粉碎的程度通过调节辊间缝隙及染料经过辊子的次数来确定。扩散颗粒尺寸大小按照JIS K5400，4-4方法进行测量。
(3)糊状着色物质的过滤
在对染料颗粒进行粉碎和扩散步骤(2)后得到的糊状着色物质经过由TOYO ROSHI公司生产的200-网眼过滤器进行过滤。
(4)着色方法
着色部分安装在这样一位置，在该处初始的树脂材料(聚碳酸酯)从安装在制模装置挤压器上部的进料斗向下提供，经过滤糊状着色物质步骤(3)得到的糊状着色物质与初始树脂材料混合。着色物质通过一测量部分预先测取一给定量并由一安装在进料斗下部的喷嘴注射。注射的着色物质添加入经由进料斗的初始树脂材料的聚碳酸酯，从而被导挤压器内。添加了着色物质的初始树脂材料的聚碳酸酯树脂经过挤压器内的场(yield)部分，压缩部分和测量部分，并经过搅拌成为颜色均匀的着色初始材料注射入金属横内。
(5)所制备的光盘的结构
采用注射成型的聚碳酸酯基底制备的光盘的结构如图1所示。
通过在具有以凹陷和平台形式形成的信息凹坑2a的聚碳酸酯基片2上形成反射层3和在其上形成UV硫化(Curable)树脂保护层4来制备光盘1。保护层4具有作为印刷表面的表面4a。
(6)光盘的评估
如果混入染料为CD着色，根据染料颗粒尺寸的大小，未溶解和扩散于聚碳酸酯中的染料作为异物以块状的形式存在于聚碳酸酯基片中。当从CD上重放数据时，这些异物便挡住了激光使其不能读出记录在CD的信号表面上的凹坑，于是便不能对数字信号进行正确的再现。
例如，如果基片中出现大尺寸的染料颗粒，在CD播放器中产生的错误如表1所示。
表1
| 条件 | C1错误(峰值) | C2错误 |
| 无异物 | 15～30/秒 | 0 |
| 有异物 | 220/秒或更大 | 1或更大(实际数字为105～273) |
在从CD上读出记录的信号时，如果异物或者损伤阻碍了信号的读出，在CD播放机内部提供了一纠错电路进行错误纠正处理。建立纠错电路用来纠正主要由交叉交织Reed-Solomn码(CIRC)的C1码造成的随机错误，并纠正由CD播码造成的较大缺陷的突发式错误。
在解码过程中纠正的错误列于C1和C2栏中，分别表明了每秒内的平均值及每秒内的实际错误数目。
CD播放机(商业名称：CDP-3000)经过改型，计量由CIRC解码器输出的C1和C2标识的发生次数，用来得到C1和C2错误的值。
没有异物的样品(O Ce-错误)被视为满意，且评估是基于满意样品的结果来进行的。
(7)示例性染料成份
根据所述的染料纯化方法(1)所得到的三种染料按表2所示的重量比混合。根据所述的染料的粉碎及扩散方法(2)，调节染料经过辊子的次数及辊间隙，并使用研磨量具，制造出具有最大颗粒尺寸80μm，60μm，50μm和40μm的糊状着色物质的多个样品。
表2
| 染料 | 组成 |
| PlastronRed 8350(蒽醌基染料，由ARIMOTO KAGAKU KOGYO公司制造) | 43重量组分 |
| Mitsni PSGreen BH(蒽醌基染料，由MITSUT TOATSU SHA制造) | 55重量组分 |
| Dia-Resin YellowF(杂环基染料，由MITSVBISHI KASEI SHA制造) | 2重量组分 |
由在糊状着色物质中的过滤中所述的方法(3)过滤得到的着色物质样品第1、2、3和4号根据在上述着色方法(4)中所述的方法模制成CD基片。模制成的CD为沥青黑色。
图1中所示的光盘样品是采用不同的基片制成，且根据上述评估方法进行评估。成品率分别为40％、70％、90％和95％，且对于染料颗粒尺寸不超过50μm的基片，可得到满意的超过90％的成品率。
如前文对本发明的描述，根据诸如(1)的光学信息记录媒体的不同的种类和用途，通过向其塑料基片中混入着色物质可以立即识别出该光学信息记录媒体的种类及用途。同时，通过优化混合入塑料基片的着色物质的颗粒尺寸，可得到满意的光学特性。
Claims (5)
1、一种光学信息记录媒体，包括通过混合着色物质而着色的一塑料基片和可光学地读出信息信号的信号记录部分。
其中混入塑料基片的着色物质颗粒的尺寸不超过50μm。
2、根据权利要求1所述的信息记录媒体，其中所述信号记录部分包括在所述塑料基片上以凹陷和平台形式形成的信息凹坑，并在其上形成有一反射层。
3、根据权利要求1所述的信息记录媒体，其中所述塑料基片由聚碳酸酯形成。
4、根据权利要求1所述的信息记录媒体，其中所述的着色物质为一种染料。
5、一种用来制造光学信息记录媒体的方法，包括以下步骤：将着色物质扩散于扩散介质中以产生液体着色物质；将所述的液体着色物质通过过滤器以除去其中的粗大颗粒，用来得到着色物质最大颗粒尺寸不超过50μm的液体着色物质；及将所述液体着色物质提供给一注射成型装置的树脂注射进料斗，用来注射成型一塑料基片。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6264282A JPH08124212A (ja) | 1994-10-27 | 1994-10-27 | 光学的情報記録媒体及びその製造方法 |
| JP264282/94 | 1994-10-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1137837A true CN1137837A (zh) | 1996-12-11 |
| CN1097259C CN1097259C (zh) | 2002-12-25 |
Family
ID=17401008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95191092A Expired - Lifetime CN1097259C (zh) | 1994-10-27 | 1995-10-25 | 光学信息记录媒体及其制造方法 |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US5840395A (zh) |
| EP (1) | EP0737965B1 (zh) |
| JP (1) | JPH08124212A (zh) |
| KR (1) | KR100387063B1 (zh) |
| CN (1) | CN1097259C (zh) |
| AT (1) | ATE215257T1 (zh) |
| AU (1) | AU710022B2 (zh) |
| DE (1) | DE69526066T2 (zh) |
| DK (1) | DK0737965T3 (zh) |
| ES (1) | ES2171197T3 (zh) |
| MX (1) | MX9602322A (zh) |
| MY (1) | MY116381A (zh) |
| WO (1) | WO1996013834A1 (zh) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60122464T2 (de) | 2000-04-28 | 2007-05-03 | Teijin Chemicals Ltd. | Farbkonzentratpellet zur optischen formgebung und gefärbtes optisches plattensubstrat |
| US6944115B2 (en) | 2000-09-29 | 2005-09-13 | General Electric Company | Colored data storage media |
| US6733950B2 (en) | 2001-03-14 | 2004-05-11 | General Electric Company | Limited play data storage media and method for limiting access to data thereon |
| JP2002322290A (ja) * | 2001-04-26 | 2002-11-08 | Teijin Chem Ltd | 光学成形品用着色マスターペレットおよび着色された光ディスク基板 |
| US6475588B1 (en) * | 2001-08-07 | 2002-11-05 | General Electric Company | Colored digital versatile disks |
| US6475589B1 (en) * | 2001-12-17 | 2002-11-05 | General Electric Company | Colored optical discs and methods for making the same |
| US7087282B2 (en) | 2003-07-15 | 2006-08-08 | General Electric Company | Limited play optical storage medium, method for making the same |
| US7202292B2 (en) | 2003-07-15 | 2007-04-10 | General Electric Company | Colored polymeric resin composition with 1,8-diaminoanthraquinone derivative, article made therefrom, and method for making the same |
| MXPA06001052A (es) * | 2003-07-29 | 2006-04-24 | Koninkl Philips Electronics Nv | Capa de informacion de contenido para un portador de grabacion optico. |
| DE10344384B4 (de) * | 2003-09-23 | 2008-07-10 | Bundesdruckerei Gmbh | Verfahren zur Überprüfung eines Authentifizierungsmerkmals eines rotierenden optischen Datenträgers und digitaler Datenträger |
| US7157129B2 (en) * | 2003-10-24 | 2007-01-02 | General Electric Company | Method for making highly colored DVDs |
| US6977107B1 (en) * | 2004-07-14 | 2005-12-20 | Tdk Corporation | Optical recording medium and method for making the same |
| US20090291391A1 (en) * | 2005-11-30 | 2009-11-26 | Fujifilm Corporation | Optical information-recording medium, method for manufacturing optical information-recording medium, method for visible information recording, use of mixture, and mixture |
| JP2009048711A (ja) * | 2007-08-21 | 2009-03-05 | Ricoh Co Ltd | 光記録媒体の製造方法及び光記録媒体 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59118132U (ja) * | 1983-01-26 | 1984-08-09 | ティーディーケイ株式会社 | 光デイスク |
| JPH07111785B2 (ja) * | 1990-01-19 | 1995-11-29 | 富士通株式会社 | 光ディスク |
| WO1991013434A1 (en) * | 1990-02-27 | 1991-09-05 | Hoechst Celanese Corporation | Process and solvent solution for coating a substrate with a naphthalocyanine chromophore |
| JPH04271031A (ja) * | 1991-01-17 | 1992-09-28 | Pioneer Electron Corp | 光記録媒体 |
-
1994
- 1994-10-27 JP JP6264282A patent/JPH08124212A/ja active Pending
-
1995
- 1995-10-25 KR KR1019960703454A patent/KR100387063B1/ko not_active IP Right Cessation
- 1995-10-25 AT AT95935561T patent/ATE215257T1/de active
- 1995-10-25 CN CN95191092A patent/CN1097259C/zh not_active Expired - Lifetime
- 1995-10-25 WO PCT/JP1995/002190 patent/WO1996013834A1/ja active IP Right Grant
- 1995-10-25 AU AU37535/95A patent/AU710022B2/en not_active Ceased
- 1995-10-25 DK DK95935561T patent/DK0737965T3/da active
- 1995-10-25 ES ES95935561T patent/ES2171197T3/es not_active Expired - Lifetime
- 1995-10-25 DE DE69526066T patent/DE69526066T2/de not_active Expired - Lifetime
- 1995-10-25 MX MX9602322A patent/MX9602322A/es unknown
- 1995-10-25 US US08/666,481 patent/US5840395A/en not_active Expired - Lifetime
- 1995-10-25 EP EP95935561A patent/EP0737965B1/en not_active Expired - Lifetime
- 1995-10-26 MY MYPI95003218A patent/MY116381A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MY116381A (en) | 2004-01-31 |
| AU710022B2 (en) | 1999-09-09 |
| DE69526066T2 (de) | 2002-10-31 |
| EP0737965B1 (en) | 2002-03-27 |
| EP0737965A4 (en) | 1997-10-22 |
| KR100387063B1 (ko) | 2003-08-14 |
| JPH08124212A (ja) | 1996-05-17 |
| ES2171197T3 (es) | 2002-09-01 |
| EP0737965A1 (en) | 1996-10-16 |
| ATE215257T1 (de) | 2002-04-15 |
| WO1996013834A1 (fr) | 1996-05-09 |
| CN1097259C (zh) | 2002-12-25 |
| DK0737965T3 (da) | 2002-06-17 |
| DE69526066D1 (de) | 2002-05-02 |
| KR970700355A (ko) | 1997-01-08 |
| AU3753595A (en) | 1996-05-23 |
| MX9602322A (es) | 1997-04-30 |
| US5840395A (en) | 1998-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1097259C (zh) | 光学信息记录媒体及其制造方法 | |
| CN100341931C (zh) | 用于聚碳酸酯－硅氧烷共聚物和共混物的不带条纹黑色制剂 | |
| DE60204746T2 (de) | Polycarbonatzusammensetzung, Substrat für einmal beschreibbare mehrmals lesbare optische Diskette, und einmal beschreibbare mehrmals lesbare optische Diskette unter Verwendung dieses Substrat, und Verfahren zur Herstellung einer einmal beschreibbaren mehrmals lesbaren optischen Diskette | |
| US7240352B2 (en) | Optical recording medium having a pattern | |
| JPH0362828A (ja) | 光学部材用ポリカーボネート樹脂成形品の着色方法 | |
| DE60122464T2 (de) | Farbkonzentratpellet zur optischen formgebung und gefärbtes optisches plattensubstrat | |
| CN1628346A (zh) | 彩色数据存储介质 | |
| JPS638458A (ja) | 着色用樹脂組成物 | |
| CA2178958C (en) | Optical information recording medium and method for producing same | |
| CN114479380A (zh) | 一种流纹母粒及其制备方法和应用 | |
| DE4433542A1 (de) | Anorganischer Füllstoff, Verfahren zu seiner Herstellung und Harzzusammensetzung mit einem solchen Füllstoff | |
| JP4902056B2 (ja) | 光ディスク基板の製造方法 | |
| JP4571285B2 (ja) | 光学成形品用着色剤マスターバッチおよび光記録媒体基板 | |
| JP4902057B2 (ja) | 光ディスク基板の製造方法 | |
| KR102504924B1 (ko) | 대리석 외관을 갖는 성형품 | |
| JP4571334B2 (ja) | 光学成形品用着色マスターペレットおよび光ディスク基板 | |
| JP2002322290A (ja) | 光学成形品用着色マスターペレットおよび着色された光ディスク基板 | |
| JP2002146210A (ja) | 光学成形品用着色マスターペレットおよび光ディスク基板 | |
| KR100434671B1 (ko) | 칼라 광디스크의 제조방법 | |
| JP4571335B2 (ja) | 光学成形品用着色マスターペレットおよび光ディスク基板 | |
| JP2001093190A (ja) | 光記録媒体 | |
| DE3328621C2 (de) | Magnetisches Aufzeichnungsmedium | |
| DE10009580A1 (de) | Verfahren zum Massefärben von Kunststoffen | |
| CN116218186A (zh) | 一种钢琴黑免喷涂pc/ms合金材料及其制备方法 | |
| JPS5919257A (ja) | 容量変換形情報記録盤 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XINLI OPTIC DISC TECHNOLOGY CO., LTD. Free format text: FORMER NAME OR ADDRESS: SONY DISC TECHNOLOGY INC. PREFECTURA DE KANAGAWA |
|
| CP03 | Change of name, title or address |
Address after: Tokyo, Japan, Japan Patentee after: Sony Disc Technology Inc. Address before: Kanagawa Patentee before: Sony Disc Technology Inc. |
|
| CI01 | Publication of corrected invention patent application |
Correction item: Patentee Correct: Sony Disc and Digital Solutions Inc. False: Sony Disc Technology Inc. Number: 15 Volume: 22 Correction item: Address Correct: Tokyo, Japan, Japan False: Tokyo, Japan, Japan Number: 15 Volume: 22 |
|
| CI03 | Correction of invention patent |
Correction item: Patentee Correct: Sony Disc and Digital Solutions Inc. False: Sony Disc Technology Inc. Number: 15 Page: The title page Volume: 22 Correction item: Address Correct: Tokyo, Japan, Japan False: Tokyo, Japan, Japan Number: 15 Page: The title page Volume: 22 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE ADDRESS; FROM: XINLI OPTIC DISC TECHNOLOGY CO., LTD. TOKYO, JAPAN TO: SONY DISC +DIGITAL SOLUTIONS TOKYO, JAPAN |
|
| ERR | Gazette correction |
Free format text: CORRECT: PATENTEE ADDRESS; FROM: XINLI OPTIC DISC TECHNOLOGY CO., LTD. TOKYO, JAPAN TO: SONY DISC +DIGITAL SOLUTIONS TOKYO, JAPAN |
|
| CX01 | Expiry of patent term |
Granted publication date: 20021225 |
|
| EXPY | Termination of patent right or utility model |