TW201042646A - Method for producing substrate of optical disk, and molding material for substrate of optical disk - Google Patents

Abstract

Disclosed is an optical disk which has excellent durability in terms of high-speed rotation and is capable of reading/writing information at a high speed. Also disclosed is a method for producing the optical disk. Specifically disclosed is a method for producing a substrate of an optical disk by molding a molding material, wherein the optical disk comprises a substrate provided with a fine projected and recessed pattern, a light-reflecting layer and a cover layer. By rotating the optical disk, recording information is read/written from the cover layer side of the optical disk. In the method, a thermoplastic resin that has a nominal strain at break of 80-180% and a breaking stress of 40-80 MPa in a tensile strength measurement at 80 DEG C in accordance with ISO 527-1 and 527-2 is used as the molding material.

Description

201042646 VI. Description of the Invention: [Minghu Jinhaobei] Field of the Invention The present invention relates to a method of manufacturing an optical disk substrate and a forming material for a disk substrate. More specifically, the present invention relates to a molding material for an optical disk suitable for an information reading and writing method represented by Bd (Blu-ray Disc). The present invention relates to a method of manufacturing an optical disk substrate which improves the accuracy of the optical disk substrate and the durability of high-speed reading and writing. 〇 ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ Further, with the increase in the capacity of recording media, the high transmission rate of recorded information is in demand, so that the speed of rotation of the optical disk tends to increase as the optical disk is recorded or reproduced. 〇纟 请 请 请 请 由 由 由 由 由 由 由 由 由 由 由 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族 芳香族A disc substrate that rotates at high speed (see patent literature!). In the patent document, an optical disk made of a material for a general-purpose optical disk substrate formed of a polycarbonate resin of a double-prevention type A cannot be sufficiently subjected to a rotation test of 30,000 rpm. On the other hand, a disc made of a copolymer is shown to withstand the rotation test. However, since the copolymer must use a special binary type, it has a disadvantage of being high in cost and insufficient in application in a wide range of fields. The other phase is different from the carbon-polythene, 201042646, so there is also a lack of re-use. On the other hand, in a bonded plastic disk such as a DVD, it is known to form a substrate on which an unrecorded signal layer is formed by using a polycarbonate resin having a viscosity average molecular weight of 18 or more (see Patent Document 2). The object of Patent Document 2 is to replace a smooth substrate having no k number with an extrusion plate, thereby improving manufacturing efficiency and reducing manufacturing cost. In other words, the invention described in Patent Document 2 uses only a high molecular weight polycarbonate resin suitable for extrusion molding. SUMMARY OF THE INVENTION It is an object of the present invention to provide an excellent resistance to high-speed rotation and high-speed reading and writing of information. A method of manufacturing a disc substrate. Further, it is an object of the present invention to provide a molding material for an optical disk substrate which is excellent in resistance to high-speed rotation and which can read and write information at a high speed. A BD (BlU-ray Disc), which has a substrate on which a fine uneven pattern is formed, a light-reflecting layer, and a cover layer, and rotates to read and write information from the cover layer side, which is sometimes referred to as " BD". The BD preferably has a recording layer between the light reflecting layer and the cover layer. The past recognition is that the double-looking type A polycarbonate is not suitable for discs for high-speed rotation. Another recognition is that for substrates with signals, the use of high-viscosity polycarbons is difficult. The inventors of the present invention have found that even a double-powder-based polycarbonate resin can be obtained as long as it satisfies the nominal tensile strain at break and the tensile fracture 201042646 measured under specific conditions. A substrate with high resistance to high speed. Based on this knowledge, the research results were further advanced, and the present invention was completed. That is, the present invention relates to a method of forming a molding material to produce a disc substrate, wherein the optical disc is a substrate having a fine concavo-convex pattern, a light reflecting layer, and an f-cover layer, so that the recording layer is written from the cover layer (four). The optical disk of the information, and the molding material is a method of measuring the tensile strength of the thermoplastic resin having a nominal strain at break of 80 to 18% by weight and a breaking stress of 4 Torr to 8 MPa. In addition, the present invention is a thermoplastic resin having a nominal strain at break of 8 〇 to 18 〇% and a breaking stress of 40 to 80 MPa in tensile strength measurement at 8 ° C according to IS 〇 527-1 and 527 _2. A molding material which is a substrate having a substrate on which a fine uneven pattern is formed, a light-reflecting layer, and a cover layer, and which is rotated to read and write information from the side of the cover layer. The present invention can be applied to a disc having a maximum peripheral speed of 50 to 200 m/sec in the outer peripheral portion when reading and writing recorded information. Further, the present invention can be applied to a disc having a recording layer between the light reflecting layer and the cover layer. In addition, the present invention can be applied to a substrate having a fine concavo-convex pattern, the fine concavo-convex pattern having a group and a pit row in the track direction, and having a gauge of 0.1 to 0.8 μm, and an optical depth of λ/8η. λ/2 η (however, λ is the wavelength of the laser light used for recording and reproduction. η is the refractive index of the substrate in which the concave-convex pattern is formed in the wavelength λ). The molding material is preferably composed of a polycarbonate resin having a viscosity average molecular weight of from 丨7xl〇4 to 2·4χ1〇4 formed of a carbonic acid structural unit derived from bisphenolphthalein. The y material is formed by forming a fatty acid ester with respect to 100 parts by weight of the polycarbonate resin having a viscosity average molecular weight of from 1 to 7 x 10 〇 4 to 2 _ 4 χΐ〇 4, which is formed by the acid-destroying turtle structural unit derived from the double-hop A. 0 005~〇2 parts by weight. [Embodiment] Best Mode for Carrying Out the Invention Hereinafter, the present invention will be described in detail. The present invention is a method for forming a forming material to manufacture a disc substrate, which is obtained by using a forming material according to ISO 527-1 and 527-2 for tensile strength measurement at 8 〇〇c, and a nominal strain at break of 80 〜 A method of 180% and a thermoplastic resin having a breaking stress of 40 to 80 MPa. Further, the present invention is a method of using the above thermoplastic resin as a molding material for a disc substrate. (Tensile Strength) In the present invention, the molding material is 80 in accordance with ISO 527-1 and 527-2. (In the measurement of tensile strength below, a thermoplastic resin having a nominal fracture strain of 80 to 180% and a fracture stress of 40 to 80 MPa. Providing a resistance by satisfying the specific nominal strain at break and fracture stress The south speed is reversed, and the disc that is difficult to generate by the mussels is broken. The reason is presumed as follows. The disc in the rain speed rotation deforms the disc due to the centrifugal force generated by the high-speed rotation, and pulls from the center portion to the outer circumference of the disc. The tensile force acts. It is presumed that the tensile force is repeated by high-speed continuous rotation, whereby the generation and progress of microcracks from the center of the substrate are generated, resulting in final destruction. The correlation between the resistance to high-speed rotation and the tensile properties, It is expected that the damage caused by the high-speed rotation of 201042646 is caused by the mechanism. In addition, the measurement at 80 c is carried out for the purpose of promoting and accelerating the polymer lamp at high temperature, although there is no clear critical significance. It is considered that the capital of the 4th writes (4) the device inside the machine is a closed space, # is due to the high-speed rotation of the substrate and the frictional heat of the air - a certain degree of "degree" It is also a proper condition. It is speculated that by the fullness of this characteristic, the generation and progress of microcracks are delayed by the ship, and the impurity for the final damage is improved. The lower limit of the nominal strain at 8 °C is 8〇%, preferably The upper limit is 180 /., and is 16%. On the other hand, the lower limit of the breaking stress is 4 〇 Mpa, preferably 50 MPa, and the upper limit is 8 MPa, preferably 7 〇 Mpa. / /, the thermoplastic resin satisfies the above tensile properties, and may be any thermoplastic resin. The thermoplastic resin may, for example, be a polycarbonate resin, a polyarylate resin, a poly stone, a hard resin, or a polyphenylene (p〇lyphenyiene) resin. And a polymethyl methacrylate resin partially glutarimide, various polymer compositions containing the resin as a main component, etc. Suitable thermoplastic resins are in formability, The polycarbonate resin is used for various points such as the cost and the conventional knowledge in the optical disc. Polycarbonate resin (hereinafter sometimes abbreviated as "polycarbonate") is a dihydric phenol or an aliphatic difunctional alcohol. Or alicyclic The alcohol and the carbonate precursor are reacted, and the reaction may be carried out by an interfacial polycondensation method, a melt transesterification method, a solid phase transesterification method of a carbonate prepolymer, and a ring-opening polymerization method of a cyclic carbonate 201042646 compound. In addition to the bisphenol A type polycarbonate which is usually used, the polycarbonate resin may be a resin which is synthesized by using other dihydric phenols, has low crystallinity, high heat resistance, or low water absorption. The polycarbonate resin may also be produced by any one of the manufacturing methods, and the interface polycondensation is usually carried out by using a monohydric phenolic terminal terminator. The polycarbonate resin may be 3 in addition to the aforementioned dihydric phenol or difunctional alcohol. A branched polycarbonate obtained by polymerizing a polyfunctional component having a functional or higher functional group. Further, it may be a branched polycarbonate resin obtained by polymerizing a polyfunctional phenol such as a trifunctional phenol, or may be a fatty sulfonium monocarboxylic acid or an aromatic dicarboxylic acid or a polyorganosiloxane. And a copolymerized polycarbonate obtained by copolymerizing a vinyl monomer.

In the present invention, it is preferably formed by the double-presence A-derived carbonated hydroxy structural unit. Since the use of a general-purpose thermoplastic resin, it is an object of the present invention to increase the door speed. In the two-year-old A: intestine, a small proportion of other side structural units may also be copolymerized. A polycarbonate resin formed from other carbonate structural units. 44, ^^ the second secret of the other carbonic acid Sl structure, such as double (4 two like seven coffee (four), A double (2,6 · dimethyl) two, < base benzene, propyl Benzene, α,α,·bis(4-yl)-diisopropyl,-bis(4-phenyl)-ρ-diisopropylbenzene, 9,9-biguanide, 9'9-bis (4) - via _3_methyl benzene fine, u bis (4 笨 基 傅 傅 己 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ( ( ( ( 4 4 4 4 4 4 4 4 4 4 4 4 4·Phenyl M•isopropyl ring double soil '4-hydroxyphenyl)cyclohexane, 4,4,-dihydroxydiphenyl ether, bucket, 4,_2_ 201042646 base-3,3' - Dimercaptodiphenyl ether, 4,4,-dihydroxydiphenyl hydrazine, 2,4,n alum, 4,4,·di-di-diphenyl, hydrazine, M,. diphenyl disulfide: Dimercapto-4'4'·di-based diphenylthio, bis(3,5-dimethylphenyl), u-bis(tetra)phenyl, sputum, 2,4, _ Diphenylmethane, bis(2-phenyl)decane, bis(4-phenyl)methane, bis(4-mercaptophenyl)methane, (4 & 2,6-one Methyl-3-methoxyphenyl)anthracene, bis & phenyl)cyclohexylmethyl, bis(4-phenyl)diphenylcarb, U-bis(4-phenyl) E-burn, U-double (4 H2-stupid)-U stupid base, my. thiol-2_gas phenyl) Ethylene, 2,2-bis (3_phenyl_4_ stupid) propyl, 2,2_ Bis(4_lightylmethylphenyl)propane, 2,2-bis(4-trans)-3-ylphenyl)propane, 2 2 bis(4-cysyl-3-isopropyl Phenyl)propane, 2,2•bis(3_tert-butyl_4_phenyl)propane, 2,2_bis(3,4__yl), 2,2•bis (3,5_: bromine collar) Phenyl)propane, 2.2-bis(4·Μ基基)·1·phenylpropanone, 22 pairs (4_phenylphenylhexafluoropropanone, 2,2-bis(4-phenylene) Burning, 2,2_bis (4_phenyl) oxime, 2.2-bis(4_light phenyl) butadiene, bismuth (4) by stupid), alpha bis (4 phenyl) octane 1,1-bis(4-hydroxyphenyl)decane, anthracene, anthracene bis(3methyl-4-hydroxyphenyl)decane, 1,1-bis(2,3-dimercapto-4- Hydroxyphenyl) decane, 2,6-dihydroxynaphthalene, resorcinol substituted with hydroquinone, res〇rcin〇丨, alkyl substituted with 1 to 3 carbon atoms, 3-(4-hydroxyphenyl)_ι,ι,3-trimethylindan-5-ol (1-hydroxyphenyl)- 1-(4-hydroxyphenyl)- l,3,3-tridecylindan-5-ol, 6,6,-dihydroxy-3,3,3',3,-tetra 1,6,-dihydroxy-3,3,3,,3,-tetramethyl spiroindane, 1-methyl-13-bis(4-hydroxyphenyl)_3-isopropylcyclohexane , methyl-2-(4-hydroxyphenyl)-3-[1-(4-phenyl)isopropyl]cyclohexane 201042646, 1,6-bis(4-hydroxyphenyl)-1,6 - Hexanedione and glycerol bis(4-hydroxyphenyl)ether and the like. Among the foregoing dihydric phenols, α, α, bis(4-hydroxyphenyl)-m-diisopropylbenzene, 9,9-bis(4-hydroxy-3-methylbenzene) may be suitably exemplified.苟, 151_bis(4-hydroxyphenyl)cyclohexane, 1,1-bis(4-hydroxy-3-methylphenyl)cyclohexane, hydrazine, hydrazine _bis(4-phenylene) -3,3,5-trimethylcyclohexene, 3,3'-dimethyl-4,4,-di-based di-based sulphur, 2,2-bis(4-pyridin-3-yl) Base phenyl) propyl and ι, ΐ-bis (4_ phenyl) 癸. The difunctional alcohol derived from the structural unit of the polycarbonate is preferably an alicyclic diol, and examples thereof include cyclohexane terpineol, cyclohexane diol, and tricyclo(5_2丄02,6)decane. Methanol, norbornene dimethanol, decalin-2, 6-dimethanol, spiroglycol, 1,4; 3,6-monoanhydro-D-glucitol ( 1,4;3,6-dianhydro-D-glucitol), 1,4; 3,6-dihydro-D-mannitol (1,4; 3,6-dianhydro-D-mannitol) and 1,4; 3,6-mono-L-idenol (1,4; 3,6-dianhydro-L-iditol) and the like. The unit other than the carbonate structural unit derived from bisphenol A is preferably 1% by mole or less per mole of the structural unit, preferably 2% by mole or less, preferably 2% by mole or less. . Further, the glass transition temperature (Tg) of the polycarbonate used in the present invention was adjusted to 13 Å. (: The above is better, 140T: the above is better. The upper limit is preferably below 18〇t, 175. (: The following is better. By satisfying the

The tensile strength characteristics of the present invention can be as high as the appropriate forming process. Tg is based on JIS K-7121, at 20. The condition of the temperature rise rate of (: / minute) is determined. The viscosity average molecular weight (^) of the polycarbonate is preferably in the range of 17 x l 〇 4 to 2 4 x l 〇 4. The lower limit is preferably i.8 x l 〇 4, 1.85 χ 1 〇. 4 is better. The upper limit is 10 201042646 different molecules have a molecular weight of 2.2 χ 10 preferably ' 2.15 χ 104. The molecular weight can also be achieved by mixing the amount of polycarbonate resin, but in the mixing, the difference is suitable. ΟχΙΟ 4 Within.

The viscosity average molecular weight of the polycarbonate is first calculated by using an Oswald viscometer from a solution obtained by dissolving 0 7 g of polycarbonate to 100 ml of methane - 2 m of methyl chloride. Viscosity 0) Specific viscosity (nsp)=(tt〇)/tQ

[to is the number of seconds of the methane methane, t is the drop type of the sample solution. The viscosity is averaged from the obtained specific viscosity (¥) using the following formula: ] Μ Γ / Γ 〇 Knife Dong WC = h] + 0.45 Xh]2c (however, [η] is the ultimate viscosity [η] = 1.23xlO'4M° 83 c II 0.7 The range of the ester structure is in the total knot % Mo % % The shaped material should be substantially derived from the double-looking A The carbonic acid formed by the formed carbonic acid has a viscosity average molecular weight of 1.7xl 〇 4~2 4m 〇 4 polycarbonate resin. In the present invention, "substantially" means that the % of the fluorene of the monolayer is preferably ±, % More preferably, the ear is more than the above, and the above is better. Lin W is formed from carbon derived from the two ages, and the viscosity average molecular weight is 17><1〇4~2, such as 1〇4, two-dimensional elemental carbonic acid, S resin, 1G0 The parts by weight 'should contain fatty acid paste ~ the polyglycerol containing fatty acid vinegar' can obtain good release property, and can form well-formed pits or grooves in a shape of t 2 parts by weight. And the disc with less distortion. On the other hand, the grease (4) exists 11 201042646, its resistance to high-speed rotation is reduced. In the present invention, a polycarbonate resin structural unit derived from bisphenol A is formed by mixing two or more kinds of polycarbonate resins having a viscosity average molecular weight of 1.7×10 4 to 2.4 χ 104. (Components other than resin) In the present invention, it is suitable. The release agent and the thermal stabilizer are mixed with the molding material. (i) Release agent The release resin is preferably mixed with the thermoplastic resin used in the present invention, particularly the polycarbonate resin. The product may, for example, be a fatty acid ester or a polyolefin-based wax (polyethylene wax, 1-ene polymer, etc., a compound which is denatured with a functional group containing acid-denatured or the like), a linaloic compound, or a fluorine. a compound (such as a fluoro oil represented by polyfluoroalkyl ether), a stone, a beeswax, etc. Among these, fat is obtained from the point of view of ease of handling, release property, and transparency. The acid ester is preferably used in an amount of 0.005 to 0-2 parts by weight, preferably 0.007 to 0.1 part by weight, more preferably 0.01 to 0.06 part by weight, based on 100 parts by weight of the thermoplastic resin. The amount added is lower than the lower limit of the aforementioned range. Release Good is not sufficient, and when it exceeds the upper limit, it is easy to have a bad influence on the contamination of the stamper. Among the above suitable release agents, fatty acid esters can be exemplified. The fatty acid esters are aliphatic alcohols and aliphatic carboxylic acids. The aliphatic alcohol may be a monohydric alcohol or a dihydric or higher polyhydric alcohol. The carbon number of the alcohol is preferably in the range of 3 to 32, and more preferably in the range of 5 to 30. The monohydric alcohol may be used. For example, ten 12 201042646 diconcanol, tetradecanol, cetyl alcohol, stearyl alcohol, eicosanol, twenty-four alcohol, ceryl alc〇h〇i and Triacontanol, etc. The polyol may, for example, be a pentaerythritol, dipentaerythritol, tripentaerythritol, polyglycerol (trimeric glycerol to hexaglycerol), ditrimethylolpropane, xylitol or sorbitol. And mannitol and the like. The fatty acid ester of the present invention is preferably a polyhydric alcohol. On the other hand, the aliphatic carboxylic acid is preferably a carbon number of from 3 to 32, particularly preferably an aliphatic carboxylic acid having a carbon number of from 10 to 22. The aliphatic carboxylic acid may, for example, be citric acid, undecanoic acid, dodecanoic acid, tridecanoic acid, tetradecanoic acid, pentadecanoic acid, palmitic acid (palmitic acid), heptadecanoic acid or octadecanoic acid (stearin). Saturated aliphatic acid such as acid, nonadecan icic acid, icosanoic acid and behenic acid (sandic acid), and palmitolic acid, oleic acid (oleic acid), linoleic acid, lin〇lenic acid, eicoxonic acid, eicosapentaen〇ic acid, and eicosadiene An unsaturated aliphatic carboxylic acid such as ceteleic acid. Among the above, the aliphatic carboxylic acid preferably has 14 to 20 carbon atoms. Among them, saturated aliphatic aliphatic acid is preferred. The aliphatic retinoic acid is generally produced from natural oils and fats such as animal fats and oils (such as tallow and lard) or vegetable oils (such as palm oil). Therefore, these aliphatic carboxylic acids generally have different carbon atoms. A mixture of other carboxylic acid components. Therefore, the aliphatic carboxylic acid contains a form of a mixture of other dicarboxylic acid components produced from natural fats and oils. The acid value in the fatty acid ester is preferably 20 or less (the texture can be taken continuously). However, in the case of full esters, in order to improve the release property, it is preferred to contain a considerable amount of fatty acid. In this regard, the acid value in the full ester is preferably in the range of 3 to 15. Further, the fatty acid ester preferably has an iodine value of 10 or less (substantially enthalpy). These characteristics can be obtained by the method specified in JIS K 0070. The fatty acid ester may be either a partial ester or a full ester. In the present invention, a partial ester is preferred from the viewpoint of good release property and durability. Among them, monoglyceride is preferred. The monoglyceride is mainly composed of a monoester of glycerin and a fatty acid. Suitable fatty acids may, for example, be saturated or fatty acids such as stearic acid, palmitic acid, sorbic acid, arachic acid, montanic acid and lauric acid, linoleic acid and sorbic acid. The unsaturated fatty acids such as stearic acid, citric acid and palmitic acid are preferred as the main component. Further, the fatty acid is obtained by combining a natural fatty acid and is a mixture as described above. The monoglyceride may be combined with other release agents, particularly the fatty acid, (4), but in the case of (iv), the monoglyceride is preferred. That is, in the case of the release agent (10)% by weight, it is preferred to use 6 〇 or more by weight. Furthermore, some vinegars are mostly inferior to the full g at the point of thermal stability. In order to improve the thermal stability of this part (4), some of the s are suitable for mining, and it is better to feed the foot (4), better than 5PP, and better than the nano-content of lppm. The content of the genus of the genus is less than 1 ppm. The acid portion (4) can be produced by the method of (4) production of a fatty acid partial ester, followed by purification by molecular distillation or the like. Specifically, (4), after using the atomizing nozzle type gamma Nozzle) degassing device to remove gas components and low-boiling substances, use a falling film distillation device at a temperature of 120~150 °C, true hemp, two 哎0.01 ～0.03 kPa of a glycerin component such as glycerin, and a high-purity fatty acid fraction is obtained by using a centrifugal molecule to be placed in a steaming chamber 14 201042646 / a dish of 16 〇 to 230 ° C and a vacuum of 0.01 to 0 Torr. The ester is used as a method of distillate, and the sodium metal is removed as a residue. With respect to the obtained distillate, by repeating the molecular distillation, a further fatty acid portion vinegar having a further lower sodium metal content can be obtained. Further, it is also important to prevent the incorporation of the sodium metal component from the external environment by increasing the airtightness or the like in advance by appropriately washing the inside of the molecular distillation apparatus by an appropriate method. The fatty acid ester can be obtained from a professional manufacturer (e.g., Riken Vitamin Co., Ltd.). (H) Phosphorus-based stabilizer In the present invention, it is preferred that the thermoplastic resin, particularly the polycarbonate resin, be mixed with various phosphorus-based stabilizers for the purpose of improving the thermal stability during molding. Examples of the phosphorus-based stabilizer include phosphorous acid, scalylic acid, phosphinic acid, phosphonic acid, and the like. In addition, the dish stabilizer contains tertiary phosphine. Specifically, the phosphite compound may, for example, be triphenyl phosphite, tris(nonylphenyl) phosphite, tridecyl phosphite, or the like. Trioctyl phosphite, tris(octadecyl)phosphite (sinking to PhosPhite), didecylmonophenyl phosphite, dioctylphenyl Filler, diisopropylphenyl sulphonate, monobutyldiphenyl phosphite, decyl diphenyl sulphate, octyl diphenyl sulphate, 2, 2-methylenebis(4,6-di-tert-butylphenyl)octylphosphite, tris(diethylphenyl)phosphite, tris(diisopropylphenyl)malelate, Tris(di-n-butylphenyl) sub-allate, bis(2,4-tert-butyl 15 201042646 phenyl) phosphite, tris(2,6-di-tert-butylphenyl) phosphite, Djstearyl pentaerythrit〇l diphosphite, bis(2,4-di-tert-butylphenyl) quaternary tetraol diphosphite, bis(2,6-di-tert-butyl) Methylphenyl) pentaerythritol diphosphite, bis(2,6-di-tert-butyl-4-ethylphenyl)pentaerythritol diphosphite, phenylbisphenol a pentaerythritol diphosphite, bis(nonylbenzene) Base) pentaerythritol diphosphite, dicyclohexyl pentaerythritol diquinone ester, and the like. Further, other phosphite compounds may be used in the case of reacting with a dihydric phenol and having a cyclic structure. For example, 2,2,-indenylbis(4,6-di-tert-butylphenyl)(2,4-di-tert-butylphenyl)phosphite, 2,2,-methylenebis ( 4,6-di-tert-butylphenyl)(2-tert-butylmercaptophenyl)phosphite, 2,2,-decylenebis(4-methyl-4-tert-butylphenyl) ( 2-tert-butyl-4-methylphenyl)phosphite, 2,2'-ethylenebis(4-methyl-6-tert-butylphenyl)(2-tert-butyl-4-methyl) Phenyl phenyl phosphite and the like. The phosphate compound may, for example, be tributyl phosphate, trimethyl phosphate, tricresyl phosphate, triphenyl phosphate, trichlorophenyl phosphate, triethyl phosphate, diphenyl cresyl phosphate, and lin. Diphenyl mono-orthoxyl phosphate, tributoxyethyl acetate, dibutyl phosphate, dioctyl phosphate, diisopropyl phosphate, etc., with triphenyl phosphate Trimethyl phosphate is preferred. The phosphonite compound can be exemplified by tetrakis(2,4-ditert-butylphenyl)-4,4 (4,4-di-tert-butylphenyl)-4,4. '~ biphenylene diphosphonite), tetrakis(2,4-di-tert-butylphenyl)_4,3'-biphenyldiphosphinate, tetrakis(2,4-di-tert-butylphenyl)-3,3 '-biphenyldiphosphine 16 201042646 acid ester, tetrakis(2,6-di-tert-butylphenyl)-4,4'-biphenyldiphosphinate, tetrakis(2,6-di-tert-butyl Phenyl)-4,3'-biphenyldiphosphinate, tetrakis(2,6-di-tert-butylphenyl)-3,3'-biphenyldiphosphinate, bis (2, Bis(di-tert-butylphenyl)-4-phenyl-phenylphosphonate (bisOdi-tert-butylphenylH-phenyl-phenyl phosphonite), bis(2,4-di-tert-butylphenyl)-3- Phenyl-phenylphosphinate, bis(2,4-di-tert-butylphenyl)-3-phenyl-phenylphosphinate, bis(2,6-di-n-butylphenyl)-3 -phenyl-phenylphosphinate, bis(2,6-di-tert-butylphenyl)-4-phenylphenylphosphinate, bis(2,6-di-tert-butylphenyl)- 3-phenyl-phenylphosphinate or the like. Among them, tetrakis(di-tert-butylphenyl)-biphenyldiphosphinate and bis(di-tert-butylphenyl)-phenyl-phenyl-phosphinate are preferred. Particularly, tetrakis(2,4-di-tert-butylphenyl)-biphenyldiphosphinate, bis(2,4-di-tert-butylphenyl)-phenyl-phenyl-phosphinate good. The phosphonite compound can be suitably used in combination with the above phosphite compound having two or more alkyl-substituted aryl groups. The phosphonate compound may, for example, be benzenephosphonic acid dimethyl ester, diethyl phenylphosphonate or dipropyl phenylphosphonate. The tertiary phosphine may, for example, be triethylphosphine, tripropylphosphine, tributylphosphine, trioctylphosphine, triamylphosphine, diphenylphosphine, dibutylphenylphosphine or diphenylmethyl. Phosphine, diphenyloctylphosphine, triphenylphosphine, tri-P-tolylphosphine, trinaphthylphosphine, diphenylbenzylphosphine, and the like. A particularly suitable tertiary phosphine is triphenylphosphine. The phosphorus-based stabilizer may be used in combination of two or more kinds in combination of one or more kinds. Among the above-mentioned phosphorus-based stabilizers, a phosphite compound or a phosphonite compound 17 201042646 is preferred. Especially tris(2,4-di-tert-butylphenyl)phosphite, tetrakis(2,4-di-tert-butylphenyl)-4,4'-biphenyldiphosphinate and bis (2) Preferably, 4-di-tert-butylphenyl)-phenyl-phenyl-phosphinate is preferred. In addition, the use of these phosphate compounds is also a suitable aspect. (iii) hindered phenol-based stabilizer The thermoplastic resin in the present invention, particularly a polycarbonate resin, can be mixed with a hindered lanthanide stabilizer for the purpose of improving heat stability and heat aging during molding. . The hindered lanthanide stabilizer may, for example, be (X-tocopherol, butyl benzoquinone, sinapyl alcohol, vitamin E, β-ββ-di-tert-butyl-4匕Hydroxyphenyl) propionate n-octadecyl-P-(4'-hydroxy-3',5'-di-tert-butylphenyl)propionate, 2-tert-butyl-6-( 3'-tert-butyl-5'-methyl-2'-pyloryl)-4-methylphenyl acrylate (2-tert-butyl-6-(3'-tert-butyl-5'-- Methyl-2'-hydroxybenzyl)-4-methylphenyl acrylate) ' 2,6-di-tert-butyl-4-(coindole dimethylamino)methyl phenol, 3,5-di-tert-butyl-4-hydroxyl Diethyl benzylphosphonate, 2,2'-methylenebis(4-methyl-6-tert-butylphenol), 2,2'-methylenebis(4-ethyl-6-tert-butyl) Phenol), 4,4'-fluorenylene bis(2,6-di-tert-butylphenol), 2,2'-methylenebis(4-methyl-6cyclohexylphenol), 2,2 - methylene-bis(6-α-methyl-knot-p-type), 2,2'-ethylidene-bis(4,6-di-tert-butylphenol), 2,2' _Butyl-bis(4-mercapto-6-tert-butylphenol), 4,4'-butylene bis(3-methyl-6-tert-butylphenol), triethylene glycol-Ν-double-3 - (3-tert-butyl-4-transyl-5-fluorenyl)propionic acid g (triethylene glycol-N-bis-3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propi onate , 1,6-hexanediol bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], 18 201042646 bis[2-tert-butyl-4-fluorenyl 6- (3-tert-butyl-5-methyl-2-hydroxybenzyl)phenyl]terephthalate, 3,9-bis{2-[3-(3-tert-butyl-4-hydroxy-5) -methylphenyl)propenyloxy]-U-dimethylethyl}-2,4,8,10-tetraoxaspiro[5,5]undecane, 4,4'-thio Bis(6-tert-butyl-m-cresol), 4,4'-thiobis(3-methyl-6-tert-butylphenol) , 2,2'-thiobis(4-mercapto-6-tert-butylphenol), bis(3,5-di-tert-butyl-4-hydroxybenzyl) sulfide, 4,4'-di - thiobis(2,6-di-tert-butylbenzene) (4,4'-out-11^〇1^8(2,6-(11-7):1;-1)1^1卩11611 〇1)), 4,4,-tris-thiobis(2,6-di-tert-butylphenol), 2,2-thiodiethyl bis[3-(3,5-di-tert-butyl- 4-Phenyl)propionic acid S] (2,2-thiodiethylenebis[3-(3,5-di-tert-butyl -4-11丫(!1'〇父丫卩11611丫1)卩1' 〇卩1〇11316)], 4-[(4, 6-dioctylthio-1,3,5-trimethyl-2-yl)amino]-2,6-di-tert-butylbenzene (2,4-1^(11-〇(^丨1; 11丨〇)-6-(4-hydroxy-3',5'-di-tert-butylanilino)-l,3,5-triazine), N,N'-cyclohexanebis-(3,5-di Tert-butyl-4-hydroxyhydrocinnamate (1^,:^'-hexamethylene-bis(3,5-di-tert-butyl-4-hydroxy-hydrocinnami de)), Ν,Ν'-double [ 3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propanoid] hydrazine (N,N'-bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl ]hy drazine), 1,1,3-tris(2-methyl-4-hydroxy-5-t-butylphenyl)butane, 1,3,5-trimethyl-2,4,6-tri (3,5-di-tert-butyl-4-hydroxybenzyl)benzene, tris(3,5-di-tert-butyl-4-hydroxyphenyl)isocyanurate, tris(3,5-di-tert-butyl) 1, 4-hydroxybenzyl) isocyanurate, 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimercaptobenzyl)isocyanurate, 1, 3,5-tris[[3(5,5-di-tert-butyl-4-hydroxyphenyl)propenyloxy]ethylisocyanurate and tetrakis[methylene_3-(3',5 '-Di-tert-butyl-4-hydroxyphenyl)propionate]methane, and the like. These are readily available. The hindered phenol-based antioxidant 19 201042646 may be used alone or in combination of two or more. The amount of the phosphorus-based stabilizer and the hindered phenol-based antioxidant is preferably 0.0001 to 1 part by weight, more preferably 0.001 to 0.1 part by weight, and 0.005 to 0.1 part by weight per 100 parts by weight of the thermoplastic resin. better. When the stabilizer is too small compared with the above range, it is difficult to obtain a good stabilization effect. When the amount exceeds the above range, the physical properties of the material may be lowered or the mold may be contaminated. In the thermoplastic resin of the present invention, other antioxidants than the above-mentioned hindered phenol-based antioxidant can be suitably used. The other antioxidant may, for example, bepentaerythritol tetra(3-mercaptopropionate) or pentaerythritol tetra(3-dodecylthiopropionic acid) vinegar (pentaerythritol tetra(3-) Laurylthiopropionate)) and glycerol-3-stearylthiopropionate. The amount of the other antioxidant to be used is preferably 0.001 to 0.05 parts by weight based on 100 parts by weight of the thermoplastic resin. The thermoplastic resin in the present invention may further contain an ultraviolet absorber, a light stabilizer, a bluing agent, a fluorescent dye, a charge preventing agent, an infrared absorbing agent, a dye, a flame retardant, a hydrolysis improving agent, an inorganic filler, An antibacterial agent, a photocatalyst antifouling agent, a light diffusing agent, and a white pigment for high light reflection. These reagents and mixing amounts which do not hinder the manufacture of the optical disc can be appropriately selected and contained. The bluing agent preferably contains 0.05 to 3. 〇 ppm (weight ratio) in the resin material. As a representative example of the layup, Bayer's MACROLEX Violet B and MACROLEX Blue RR, and Clariant's 20 201042646 Polysynthren Blue RLS (Polysynthren Blue RLS) and the like can be exemplified. The fluorescent dye (including a fluorescent whitening agent) may, for example, be a coumarin-based fluorescent dye, a benzopyran-based fluorescent dye, an anthraquinone fluorescent dye, an anthraquinone fluorescent dye, or a sulfur-based fluorescent dye. Dye, xanthene fluorochrome, xanthone fluorochrome, thioxanthene fluorochrome, thioxanthone (thi〇xanth) 〇ne) is a fluorescent dye, a thiazine-based fluorescent dye, and a diaminostilbene-based fluorescent dye. The blending amount of the fluorescent dye (containing the fluorescent whitening agent) is preferably 〇 〇丨 〇丨 by weight based on the weight of the thermoplastic resin. In the present invention, since the molding material is liable to be yellowish in comparison with a conventional material for a disc substrate, it is possible to add a dye to adjust an appropriate hue. Further, the color is colored to a clear hue, and it is easy to classify according to the purpose, and it is also possible to appropriately express the high-speed rotating disc. In addition, in the molding material for a substrate of the present invention, when a resin molded article which is partially recovered from the market is used as a resin material, it can be used to adjust the hue of the material. This kind of resin recycled from the market can be used to display the vehicle (four) lamp components, CDs and DVDs. The amount of the pigment is preferably 〇·〇〇〇ι~1 by weight based on 1 part by weight of the thermoplastic resin. The hydrolysis-improving agent may, for example, be an epoxy compound, an oxetane compound, a decane compound or a phosphonic acid compound. (Manufacturing of a molding material) For the production of a molding material, a method for producing a material for a photovoltaic disc formed of a known polycarbonate resin can be used. That is, the polycarbonate resin and the 21 201042646 additive can be pre-moneyed, put into the extruder to ride (four), and the extruded filaments are cooled and cut by a granulator to produce a granular shaped material. Although the extruder can be any one of a single-shaft extruder and a twin-screw extruder, it is preferable to use a twin-screw extruder from the viewpoint of productivity and kneadability. The twin-screw extruder is a representative example of ZSK (manufactured by Wemer & pfleid (trade name), trade name). Specific examples of the same type include ΤΕχ (product name manufactured by Sakamoto Steel Co., Ltd.), ΤΕΜ (made by Toshiba Machine Co., Ltd., trade name), κτχ (product name manufactured by Kobe Steel Co., Ltd.), and the like. . The extruder is preferably an extruder having a degassing gas which can decompose the moisture generated in the raw material and the volatile gas generated from the melt-kneaded resin. It is preferable to provide a vacuum pump for discharging the generated moisture or volatile gas from the sump to the outside of the extruder. Further, a screen for removing foreign matter or the like mixed in the extruded raw material may be provided in a region in front of the head of the extruder die to remove the foreign matter from the resin composition. The screen may be exemplified by a metal mesh, a screen changer, a sintered metal sheet (filter, etc.). The additive may also be supplied to the extruder independently, but it is preferred to premix with the resin raw material as described above. The premixing means can be exemplified by a Nauta Mixer, a V-type mixer, a Henschel Mixer, a mechanical chemical stirring device, an extrusion mixer, and the like. A more suitable method is, for example, after mixing a part of the raw material and an additive as a master agent with a high-speed mixer like a pre-Schiller, and then using the non-speed mixer like a Notta mixer, the main substance and A method of mixing the entire amount of the resin raw material remaining. The resin extruded from the extruder is either directly cut to pelletize it, or a tow is formed, and the tow is cut by a granulator to be pelletized. When it is necessary to reduce the influence of external dust, etc., it is advisable to clean the atmosphere around the extruder. In addition, in the production of the granules, various methods have been proposed for the use of optical blisters for the formation of phthalocyanines, and it is preferred to carry out narrowing of the particle shape distribution, further reduction of the missing materials, and transportation or transportation. The further reduction of the fine particles and the reduction of the bubbles (vacuum bubbles) generated inside the tow and the particles. The reduction of the leakage cut can be exemplified by the temperature management of the filament when the granulator is cut, the ion wind blown during the cutting, the calibration of the inclination of the granulator, and the proper mixing of the release agent. And a method of filtering the mixture of the cut particles and water to separate the particles and water and the missing material, and the like. An example of the measurement method is disclosed in, for example, Japanese Laid-Open Patent Publication No. 2003-200421. These treatments can be used to achieve high cycle formation and a reduction in the proportion of undesirable conditions like the knife. In the present invention, the amount of leakage of the molding material is preferably 1 〇 ppm or less, and preferably 5 ppm or less. Here, the missed cut refers to a fine particle having a fine particle size of a JIS standard sieve passing through a sieve hole of 1 〇ιηιη. The shape of the particles may be a general shape such as a cylindrical column and a spherical shape, and a cylindrical shape (including an elliptical column) is preferable, and a diameter of the 'Hai cylinder is preferably 1.5 to 4 mm, preferably 2 to 3.5 mm. The ratio of the short plant to the long diameter in the elliptical cylinder is preferably 60% or more, and more preferably 65% or more. Further, the length of the outer cylinder is preferably 2 to 4 mm, and 2 to 5 to 3.5 mm is preferable. (Molding) An injection molding machine (including an injection compression molding machine) is used for the production of a BD substrate from a molding material, more specifically, a molding material having a pellet shape. The injection molding machine may be a molding machine that is generally used. From the viewpoint of suppressing the generation of carbides and improving the reliability of the substrate, the cylinder and the screw should have a low adhesion to the tree, and exhibit resistance. The surname, (5) the wearer of the material. The conditions for injection molding are 300~45 (300 is preferred, 320~4〇〇C is preferred), the mold temperature is preferably 50~18〇t, and 80~140°C is better. BD substrate with excellent mechanical properties and shape. In the environment under the forming process, for the purpose of the present invention, it is desirable to additionally consider that the material to be used for forming is sufficiently dry to remove the water jet, or does not cause any inconvenience. The retention of the decomposition of the molten resin is also important. The optical disk substrate of the present invention includes not only injection molding by injection compression molding, but also hot extrusion molding, vacuum compression molding, and thermal fusion transfer to open y, etc. From the viewpoint of productivity, it is preferable to use injection molding, in particular, injection molding, that is, by injection compression molding, it is possible to produce a substrate excellent in productivity and excellent in high-speed rotation. The thickness of the optical disk substrate is preferably 1.1 mm. The optical disk substrate has a fine concave and convex pattern, and the fine concave and convex patterns have groups and pit rows along the track direction, and the track pitch is 0.1 to 〇8 μιη, and the light thereof is light. The depth is 麻~· (However, λ is the wavelength of the laser light used in the reproduction of the recording. η is the refractive index of the substrate having the concave-convex pattern in the wavelength λ.) The present invention can be applied to this. A disc substrate having a fine concavo-convex pattern. (Compact Disc) In the present invention, the optical disc has a substrate on which a fine concavo-convex pattern is formed, a light-reflecting layer, and a cover layer that rotates to read and write information from the cover layer side. 24 201042646 According to the present invention, it is possible to provide a compact disc which is excellent in high-speed rotation resistance. The present invention can be applied to a disc having a maximum peripheral speed of 50 to 200 m/sec in the outer peripheral portion when reading and writing recorded information. The lower limit of the peripheral speed is preferably 70 m/sec, preferably 100 m/sec. BD (Blu-ray Disc) is formed on the substrate, and at least a light reflecting layer and a covering layer are formed. Preferably, a single sheet is formed between the light reflecting layer and the covering layer. A recording layer composed of a layer or a plurality of recording films and a recording film protective film. These layers may also be formed in a plurality of forms, in particular, two layers. In the case of a Bd-R with a write-on type and a BD-RE with a rewritable type, etc. Remember In the optical disk of the layer, the high-speed rotation is required to be high, and the present invention can be effectively applied as appropriate. Further, in order to prevent bending of the substrate during use, a moisture-proof film is usually further formed on the reverse side surface of the layer on which the cover layer is provided. 'As needed, a hard coat layer is provided on the outermost cover layer. (Recording film) When the recording film is a write-once optical disc, it is an optical discharge which is irreversibly changed by irradiation of laser light or a film having irregularities. For example, a cyanine system, a phthalocyanine system, or an azo system in which a recording film is deformed by a change in volume due to a change in optical constant due to heating by laser irradiation. And organic pigments such as indoaniline. In particular, an organic dye of an azo metal complex and an indoleamine metal complex compound can be suitably used. To improve the sensitivity of laser light, the complex can be combined with other organic pigments. A metal complex compound of an azo-based metal complex compound and a hydrazine-based metal complex compound, and a combination with another organic coloring matter are described in, for example, JP-A-2005-271587 and JP-A-2005-271587 2〇〇8 26266i, etc. In the case of a rewritable optical disk, the recording film is a film (phase change recording type) formed by a material which generates a reversible phase structure change between an amorphous state and a crystalline state by irradiation of laser light, or in a vertical direction of the film surface. A magnetic thin film (magneto-optical recording type) having a magneto-optical effect capable of recording, reproducing, and erasing information can be performed with an easy magnetization direction and an arbitrary inverted magnetic domain. The phase change recording type recording film can be, for example, a chalcogen material

GeSbTe, InSbTe, InSe, InTe, AsTeGe, TeOx-GeSn, TeSeSn, FeTe, SbSeBi, and BiSeGe systems, etc. Good and suitable. The magneto-optical recording type recording film can use, for example, TbFe, TbFeCo,

An amorphous alloy thin film of a rare earth element such as GdTbFe, NdDyFeCo, NdDyTbFeCo, NdFe, PrFe, and CeFe, and a transition metal element, a two-layer film formed by exchange connection, and a labor of Co/Pt, Co/Pd, or the like A lattice multilayer film, a CoPt-based alloy, or the like. Further, in the present invention, it is preferable to use a dielectric material as the recording film protective film sandwiching the recording film. Thereby, the difference in reflectance between the crystal phase and the amorphous phase as the medium can be improved, and the magneto-optical effect can be improved, and the storage property of the recording layer can be improved, the adhesion of the recording layer and the cover layer can be improved, and the thermal conductivity can be adjusted. Wait. The dielectric material is preferably a material having a refractive index η, that is, a material of ngl.6, more preferably a material of ng 1.8. Specifically, a material formed of a nitride, an oxide, a carbonized material, or a sulfide of Zn, Si, Ti, Te, Sn, Mo, Ge, Nb, or Ta is preferable. For example, using Si〇, Si〇N, Ta203, T1O2, Al2〇3' γ2〇3, Ce〇, La2〇3, In, Ge〇, Ge02, M〇02, Nb205, Pb〇, Sn 〇, Sn〇2, m2〇3, Ta2〇5,

Oxides such as TeO, Te02W02, Ti02, w〇3, Sc2〇3, ZnO, Zr02, etc., nitrides such as TaN, AIN, SiN, and AlSiN, ZnS,

Zn0-Ga203, Sb2S3, CdS, In2S3, Ga2S3, GeS, SnS2, PbS,

A sulfide or the like of Bi2S3 or the like, or a mixed material thereof or the like, or the like, is used as a protective film. (Light-reflecting layer) The light-reflecting layer is preferably a material having a higher reflectance than the recording layer for the laser light for the magnetic head to be evaluated. Specifically, it is preferable to use a material having a refractive index n and an extinction coefficient domain of optical constants in the wavelength of the laser light, η^3.5 and k^3.5. More suitable is 1^25 and 4.5$kS8.5, and the media produced under this condition can further improve the characteristics of the reproduced signal. 〇 In addition, when the signal under heating due to laser light is recorded, if the thermal conductivity of the light-reflecting layer is excessive, the thermal diffusion is large, and strong laser power is required. Therefore, it is preferable that the thermal conductivity of the material used for the light-reflecting layer of the semiconductor laser recording signal at a power of 15 mWa which is currently used is 1 〇〇 [W / (m . K)] or less, further 8 〇. [w/(m · κ)] is better. A material satisfying such a condition can be exemplified by adding Au to A1 or Ag,

Tl, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Tc, Re, RU, 〇s,

An alloy of the above elements of Ir, Pd, Pt, Cu, and Nd. Specifically, J is, for example, AgPdCu alloy, AgCuAu alloy, AgCuAuNd alloy, AgCuNd 27 201042646 = and the like. Furthermore, the content of the added elements in these alloys is preferably incorporated into 〇ι~ ;:子:=. As a material other than metal, a low refractive index == may be alternately laminated to form a multilayer film, which is used as a two-shot layer. The thickness of the reflective layer ranges from H) to ··, except that the degradation of the regenerative signal characteristics due to the decrease in reflectance is suppressed, and the laser power can be recorded at a laser power of 15 mW, preferably 3 〇 to (10). 4〇~100nm is especially suitable. The light-reflecting layer m J is formed on the substrate by vacuum evaporation, sputtering or ion ore. Furthermore, in the case where the optical media is found in the fourth straight line, only the above-mentioned disparity layer is formed on the substrate, and the material is the same as the material. (Cover Layer) The method of coating and hardening the curable resin of the outer layer hardening resin (hereinafter abbreviated as "UV hardening resin") by a method known as spin coating (ie, rotation) The coating method) and the method of bonding the optical_forming method (that is, the film sticking method) represented by the polycarbonic acid to the resin (4). The optical film for the cover layer can be used as an optical iridium commercially available from PURE-ACE (registered trademark). In the film sticking method, a method of bonding a film by applying a curable compound such as a UV curable resin to a substrate side, and a film in which a drying agent and a binder are applied in advance in a thin manner may be used. Any of the methods that require hardening. Examples of the pressure-sensitive adhesive include a propylene-based pressure-sensitive adhesive and an oxime-based pressure-sensitive adhesive. In particular, a propylene-based pressure-sensitive adhesive can be suitably used. In a write-once type of an organic dye using an azo metal complex and a anilide metal complex compound, it is preferable to use a film sticking method in order to form a void easily, and it is preferable to use an adhesive in the bonding. . The Tg of the adhesive is 0. (: The following is preferable, _15°c 28 201042646 is preferable, and -25 ° C or less is better. EXAMPLES Hereinafter, the present invention will be described in detail by way of examples, but the present invention is not limited to the specific examples. Further, the measurement of various characteristics in the examples was carried out by the following method: (I) Evaluation item (I-1) Viscosity average molecular weight The viscosity average particle size of the particles was 20 ° C using an Oswald viscometer from Polycarbonate _ 〇 〇 78 is dissolved in a gas tempering solution such as the solution formed to obtain the specific viscosity calculated by the following formula (η ^), from the specific viscosity (η $ ρ) using the following formula to obtain the viscosity average molecular weight ( Μ). Specific viscosity (Tlsp) = (t-t0)/t0 [t〇 is the number of seconds of methylene chloride drop, t is the number of seconds of the sample solution] η5Λ=[η]+〇·45χ[η]2 (: (but '[η] is the ultimate viscosity) [η]=1.23χ1〇·4Μ083 c=0.7 (1-2) Determination of tensile fracture stress and nominal tensile failure strain The pellet is injection molded to a length of 175 mm x width 1试验mmx thickness 4mm test piece, according to ISO 527-1 and 527-2, 23 ° C and 80. (: tensile fracture stress (unit: MPa) and nominal tensile failure strain Unit: %). Further, the test speed is performed at 5 mm/min. (1-3) Evaluation of the amount of bending of the optical disk The method of (2) described later is to form a disc substrate having a straight thickness of 1.1 mm and A reflective film (sputter 29 201042646 deposition) is deposited on the signal surface side of the optical disk substrate, and a film for a cover layer made of a polycarbonate resin is bonded thereto (PURE-ACE (registered trademark) D92 manufactured by Teijin Chemicals Co., Ltd.) In the case of the disc, the amount of change in the disc is measured by the three-dimensional shape measuring device DLD-3000U manufactured by Japan EM Co., Ltd., and the radial tilt from the center of the disc is 55〇1〇1. (1-4) Rotation of the disc In the same manner as in the above-mentioned (1-3), the strength test was carried out by using a disc to which the cover layer was attached, and the disc was rotated at a rotation speed of 30,000 per minute for 5 minutes to perform a rotation strength test. Ten sheets of discs are used. The judgment that any tamper is broken when the height is rotated is ><, and there is no damage. However, the determination of the crack from the inner peripheral portion on the signal surface (radius 25 mm to 55 mm) is △,: I have not broken and none of them are on the signal surface. (1) Production of a molding material for a substrate The molding material for a substrate formed by the mixing ratio described in Table 作 is formed according to the following points. According to the preparation composition described in 丨, each raw material is weighed into a polyethylene bag, so that the bag is filled in the up-and-down direction and the left-right direction, so that the prepared raw materials are uniformly dry-blended. The blended mixture was supplied to the third inlet of the last portion by a squeeze-type twin-screw extruder (TEX3〇a_3 5bV, manufactured by Nippon Steel Co., Ltd.). The cylinder temperature and the die temperature were 255 ° C and 26 Torr in Examples i to 4, respectively.匚, 2 illusion. ◦ and 275 C. The screw rotation number was 25 rpm, the discharge amount per hour was 154 / hour, and the vacuum degree of the squish was 10 vo. Further, the screw section = 30 201042646 The structure has a kneading zone composed of a kneading disc on the upstream and downstream sides of the squish position. After the extruded tow was cooled in the cut, it was cut by a granulator to be pelletized. The granules produced were an average number of straight $2 8 mm, an average number of lengths of 3.0 mm, and a missed cut of 3 ppm. The granules were dried at 12 Torr for 6 hours using a hot air dryer. (2) Production of evaluation optical disc The optical disc for evaluation was prepared as follows. First, the optical disk substrate having a diameter of 120 η π η φ and a thickness U mm was injection molded using the respective pellets (1), and the cylinder temperature and the mold temperature shown in Table 1. In the injection molding machine [SD_4〇E manufactured by Sumitomo Heavy Industries, Ltd.], a stamper (a groove having a pitch of 3232 μm and a depth of 〇·〇3 μm) was attached. On the signal surface side of the obtained optical disk substrate, a film of 10 nm was deposited by DC sputtering using a high-frequency magnetron sputtering apparatus (ILC 3102 type manufactured by ANELVA). This sputtering was carried out using an Ag alloy sputtering target containing 5.0 atom% of Nd and 1. atom% of Bi, and the discharge power was 500 W. Other film formation conditions were substrate temperature: 22 ° C, argon pressure: 2 mTorr, film formation rate: 5 nm/sec, back pressure: < 5 x 10 -6 Torr. The substrate on which the light-reflecting layer was formed was taken out from the full-mine unit and fixed to a spin coater. The film for the coating layer (the paniite made by Teijin Kasei Co., Ltd.) was obtained by applying a film of a coating layer having an internal control of 15 mm φ and an outer diameter of 120 mm φ in a vacuum after the application of the ultraviolet ray-curable benzoic acid. Fum (registered trademark) D92) fits. Thereafter, the ultraviolet curable resin is cured by an ultraviolet irradiation device to form a disc. Furthermore, since the presence or absence of the recording layer in the evaluation of the present invention does not have a significant influence on the bending amount and the rotational strength of the optical disk 31 201042646, the evaluation thereof is omitted. The evaluation of the amount of bending of the manufactured disc and the test of the rotational strength were carried out, and the results are shown in Table 1. As is clear from the results of Table 1, it is possible to obtain a good rotational strength which cannot be obtained by a polycarbonate resin material for a general-purpose optical disk by using a resin material which satisfies a specific value with a tensile property at 08. Furthermore, the symbols in the table indicate the meanings as described below. (The thermoplastic polymer as a main component) PC-1: a linear aromatic polycarbonate resin powder having a viscosity average molecular weight of 15,9 ( (panlite (1 main volume trademark) Cm_i〇〇〇 manufactured by Teijin Chemicals Co., Ltd. PC-2: Linear aromatic polycarbonate resin powder having a viscosity average molecular weight of 19,700 (panlite (registered trademark) L_1225WX manufactured by Teijin Chemicals Co., Ltd.) PC-3: Linear aromatic polycarbonate with a viscosity average molecular weight of 20,800 Ester resin powder (panlite (registered trademark) L_1225w manufactured by Teijin Kasei Co., Ltd.) PC-4: Direct-bonded aromatic polycarbonate resin powder having a viscosity average molecular weight of 22,400 (Panlite (registered trademark) L_1225wp manufactured by Teijin Chemicals Co., Ltd.) (Comparative material) AD: Polycarbonate resin pellets for discs (Panlite (registered trademark) AD-5503 manufactured by Teijin Chemicals Co., Ltd.) (other additives) RA: glycerin of molecule #343 And (4) _ generated monocular purpose (manufactured by Riken Vitamin Co., Ltd.: Rikemal S-100A) ST: yoshi yoghurt sulphuric acid heat stabilizer (made by Ciba Specialty Chemicals Co., Ltd.: Karu (10); Three (2, 4) -di-tert-butylphenyl) sub-acidate) 32 201042646 Comparative Example 1 1 1 1 1 100 1 1 100 360 (N 〇〇〇m cn ο ο ιη (Ν b (N cn m 〇X Example 4 〇 (N 1 1 1 0.04 0.01 100 1 395 1 112 105 140 m od 21,100 Ο 00 130 (N Ό 158 inch 〇〇 Example 3 1 1 100 1 1 0.04 ! o.oi 100 380 105 120 wo Ο ο 卜' (Ν 125 125 125 < 〇 in 151 inch d 〇 Example 2 〇m 〇1 1 1 1 0.04 1 I o.oi I 1 100 1 360 CN 00 L. 1〇5一| m Ο Ο r\ 0\ ι—Η 〇 110 110 inch inch 132 md 〇Example 1 § § 1 1 1 1 0.04 0.01 100 360 (N 〇\ in 00 100 m Ο ο ο. οο" ΓΟ 〇 \ 1 < inch 114 m ο 〇 unit weight MPa | 1 MPa % MPa 1 1 0 Π PC- 1 PC-2 PC-3 PC-4 AD-5503 RA Η ζΛ -4—Barrel Temperature Mold Temperature Fixed Side Mold Temperature Movable Side Filling Peak Pressure Forming Period Average Molecular Weight of Fracture Stress Nominal Fracture Strain Fracture Stress Nominal Fracture Strain S-disk rotation strength PC resin release agent stabilizer 23 ° C tensile characteristics 80 ° C tensile properties electric material forming conditions evaluation item 33 201042646 If the method of manufacturing a disc substrate of the present invention use, can provide an excellent resistance to high-speed rotation, high-speed read disc information. According to the method of using the specific thermoplastic resin of the present invention, it is possible to provide a disc which is excellent in resistance to high-speed rotation and which can read and write information at high speed. The present inventors have found that even a general-purpose bisphenol A type polycarbonate resin can be used as a substrate material for a disc, and a disc substrate excellent in resistance to high-speed rotation can be obtained, and is low-cost. Reuse is also an excellent method. Industrial Applicability The method of the present invention can be applied to the manufacture of BD (Blu-ray Disc). Simple description of C pattern 3 (none) [Explanation of main component symbols] (none) 34

Claims (1)

201042646 VII. Patent application scope: A method for forming a molding material to manufacture a disc substrate, wherein the optical disc has a substrate having a fine concavo-convex pattern, a light reflecting layer and a covering layer 'rotating and reading from the side of the covering layer The information is recorded on the disc, while the forming material is used in accordance with ISO 527-1 and 527-2, at 80. (Method of measuring the tensile strength in the lower tensile strength of 8 〇 to 18 〇 %, and a thermoplastic resin having a breaking stress of 40 to 80 MPa.) 2. The method according to claim 1, wherein When the optical disc reads and writes information, the maximum peripheral speed of the outer peripheral portion is in the range of 5 〇 to 2 〇〇 m / sec. 3 ♦ The method described in the first or second aspect of the patent application, in which the optical disc is in the light The method of any one of the above-mentioned items, wherein the optical disk substrate has a fine concave-convex pattern, and the fine concave-convex pattern has a group along the orbital direction. Group, pit train, and its gauge is 〇丨~〇8μιη, and its optical depth is λ/8η~λ/2η (however, λ is the wavelength of the laser light used in recording and reproduction. η is in the wavelength λ 5. The method according to any one of claims 1 to 4, wherein the molding material is substantially a carbonate structural unit derived from bisphenol hydrazine. The resulting 'viscosity average molecular weight is 1. The method of any one of the above-mentioned claims, wherein the molding material is relative to the carbonic acid derived from bisphenol VIII. The ester structural unit is shaped as 35 201042646. The viscosity average molecular weight is 100 parts by weight of the polycarbonate resin in the range of 1.7 χΐ〇 4~24 χ 1 λ4 · 4 Μ〇 4, and the fatty acid enthalpy is still contained 曰 0 0 7. 8. A method of using a thermoplastic resin as a molding material for a disc substrate is based on ISO 527-1 and 527-2, and the nominal strain at break in the tensile strength measurement under 'L is 80 to 18%, and the fracture stress is A thermoplastic resin having a thickness of 4 Å to 80 MPa is used as a molding material for a substrate having a substrate on which a fine pattern is formed, a light-reflecting layer, and a cover layer, and is rotated to read and write information from the cover layer side. The method described in the item, wherein the maximum circumference of the outer peripheral portion of the optical disc is in the range of 5 〇 围 。 。 。 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 ,its The medium-sized optical disc has a recording layer between the light-reflecting layer and the cover layer. The method described in the seventh aspect of the invention, wherein the optical disc substrate has a fine concave-convex pattern, and the fine concave-convex pattern is along There are groups and pit rows in the track direction, and the gauge is 0.1~0·8μηι, and its optical depth is λ/8η~λ/2η (however, χ is the wavelength of laser light used for recording and reproduction. η疋 is at wavelength λ The refractive index of the substrate in which the concave-convex pattern is formed. 11. The method according to any one of claims 7 to 1G, wherein the pure material is solidified by a carbon-based structural unit The formed "polyurethane resin having a viscosity average molecular weight in the range of 1.7 x 1 〇 4 to 2.4 X 104 is formed. 12. The method described in the clause 7~u of the patent scope, 36 201042646 The molding material is formed by using a carbonate structural unit derived from bisphenol A, having a viscosity average molecular weight of 100 parts by weight of the polycarbonate resin in the range of 1.7χ104 to 2·4χ104, and containing 0.005 to 0.2 parts by weight of the fatty acid ester. . 37 201042646 IV. Designated representative map: (1) The representative representative of the case is: ( ). (None) (2) A brief description of the symbol of the representative figure: 5. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: 201042646 103797 Patent_Request for the replacement of Ben Manming's special description ^ 99.06 曰(Do not change the format and order of this manual, please do not fill in the ※ part) ※Application number: ※Application date: Cold, classification: 1. Inventor name··(中中英文) Name"Λ Method of manufacturing optical disc substrate and forming material of optical disc substrate II. Abstract of Chinese invention: 〇 reading and writing iiSiiii; There is a method of manufacturing a disc substrate by high-speed 罝 ί , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Write the cd of the recorded information, and the molding material is a thermoplastic resin with a tensile strain of 80 to 180% and a breaking stress of 40 to 80 MPa according to the tensile strength measurement at 80 ° C. Methods. 1 201042646 VIII. Description of the Invention: [Technical Field of the Invention] Field of the Invention The present invention relates to a method of manufacturing an optical disk substrate and a molding material for a disk substrate. More specifically, the present invention relates to a molding material for an optical disk suitable for an information reading and writing method represented by BD (Bhj_ray Disc). The present invention relates to a method of manufacturing an optical disk substrate which improves the accuracy of the optical disk substrate and the durability of high-speed reading and writing. Background of the Invention In the field of optical discs, with the development of information technology such as high-quality images, the capacity of information recording media has been demanded, and various methods have been proposed. Further, with the increase in the capacity of the recording medium, the high transmission rate of the recorded information is required. Therefore, when the optical disk is recorded or reproduced, the rotational speed of the optical disk tends to increase. The applicant has disclosed that the molding material of the aromatic polycarbonate copolymer formed of the structural unit derived from a specific dihydric phenol as a main component is small in birefringence and high-speed rotation, and is suitable for high-speed rotation. The optical disk substrate (see Patent Document 1). In the patent document, an optical disk made of a material for a common optical disk substrate formed of a bisphenol A type polycarbonate resin cannot sufficiently withstand a rotation test of 30,000 rpm. On the other hand, it is shown that a disc made of the copolymer of the appeal can withstand the rotation test. However, since the copolymer must use a special dihydric phenol, it has a disadvantage of being high in cost and insufficient in application in a wide field. In addition, because it is different from general-purpose polycarbonate, 201042646 is also insufficient in terms of recyclability. On the other hand, in a bonded type disc such as a DVD, it is known to form a substrate on which an unrecorded signal layer is formed using a polycarbonate resin having a viscosity average molecular weight of 18,000 or more (see Patent Document 2, the object of the invention is to In the invention described in Patent Document 2, only a high-molecular-weight polycarbonate resin suitable for extrusion molding is used, in which the smoothing substrate having no signal is replaced by an extrusion plate. Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. The present invention provides a method of manufacturing a disc substrate which is excellent in resistance to high-speed rotation and capable of reading and writing information at high speed. BD (Blu-ray Disc) is representative. A substrate having a substrate having a fine concavo-convex pattern, a light-reflecting layer, and a cover layer, which are rotated to read and write information from the cover layer side, and the following Referred to as "B-Pan, BD should have a recording layer between the light-reflecting layer and the cover layer.: The past knowledge is that the polycarbonate resin of bisphenol A pear is not suitable for discs for high-speed rotation. Yes, it is difficult to use a high-viscosity polycarbonate resin for a signal-coated substrate. However, the inventors have found that even a bisphenol A-type polycarbonate resin is satisfied as long as it satisfies specific conditions. According to the nominal tensile strain at break and the tensile fracture 201042646, the substrate with high resistance to high-speed rotation can be obtained. Based on this knowledge, the research results are further advanced, and the present invention is completed. A method of forming a molding material to produce a disc substrate is a disc having a substrate having a fine concavo-convex pattern, a light reflecting layer, and a covering layer, and rotating the disc to read and write information from the side of the covering layer, and the forming material is According to ISO 527-1 and 527-2, the nominal fracture strain is 80 to 180% and the fracture stress is 40 to 80 MPa in the measurement of tensile strength below 80. The method of the thermoplastic resin. \) In addition, the present invention is based on the use of IS〇527-1 and 527-2, the tensile strength measurement at 8 ° C, the nominal strain at break is 8〇~18〇% And a thermoplastic resin having a fracture stress of 40 to 80 MPa as a molding material of a substrate having a substrate on which a fine uneven pattern is formed, a light-reflecting layer, and a cover layer, and rotating the substrate to read and write information from the cover layer side The present invention can be applied to a disc having a maximum peripheral speed of 50 to 200 m/sec in the outer peripheral portion when reading and writing recorded information. In addition, the present invention can be applied between the light reflecting layer and the covering layer. Record the layer of the disc. In addition, the present invention can be applied to a groove having a fine uneven pattern on a substrate, and a groove array having a groove along the track direction, and having a pitch of (U~〇.8μηι, whose optical depth is λ/8η) ~λ/2η (however, λ is the wavelength of the laser light to be used during recording and reproduction. η is the refractive index of the substrate in which the concave-convex pattern is formed in the wavelength clock). The forming material is substantially from the double It is formed of a carbonic acid structural unit derived from a carbonic acid structural unit, and has a viscosity average molecular weight of i 7χ1〇4 to 2 4χΐ〇4, which is composed of a polycarbonate. The molding material is derived from a carbonate derived from bisphenol A. The structure of the structure _ is formed to have a viscosity average molecular weight of ι·7χΐ〇4 to 2. 100 parts by weight of the polycarbonate resin in the range of 1 to 4, preferably containing 0.005 to 0.2 parts by weight of the fatty acid ester. BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below. The present invention is a method for forming a molding material to manufacture a disc substrate, which is measured using a molding material according to 180 527-1 and 527-2. 8〇 The method for measuring the tensile strength of the lower tensile strength is 8〇~180°/, and n is a thermoplastic resin having a breaking stress of 40 to 80 MPa. Further, the present invention uses the aforementioned thermoplastic resin as light. The method of forming a material for a substrate. _ (tensile strength) In the present invention, the molding material is in accordance with ISO 527-1 and 527-2 at 8 (the tensile strength measurement of TCt, the nominal strain at break is 80 to 180%, Further, a thermoplastic resin having a breaking stress of 40 to 80 MPa is provided. By satisfying the specific nominal strain at break and the breaking stress, a disk which is resistant to high-speed rotation and which is difficult to be broken is provided. The reason is presumed as follows. The disc "deforms the disc due to the centrifugal force generated by the high-speed rotation" and exerts a tensile force from the center portion to the outer circumferential direction of the disc. It is presumed that the tensile force is repeatedly applied by the high-speed continuous rotation, thereby generating the central portion from the substrate. The generation and progress of the microcracks lead to the ultimate damage. The correlation between the financial properties and the tensile properties of the high-speed rotation is expected to be due to the damage caused by the high-speed rotation of 201042646. On the other hand, 'the measurement at 8 (TC) is carried out for the purpose of promoting high temperature and accelerating polymer behavior, although there is no clear critical significance, but the driving device used for reading and writing of information is considered. In the case of a closed space in the machine, in view of the fact that a certain degree of temperature rise due to the frictional heat of the substrate and the air rotating at high speed is also a proper condition. It is presumed that by satisfying this characteristic, the generation and progress of microcracks are delayed, for the final The resistance to damage is increased. 8 (The lower limit of the nominal strain at TC is 80%, preferably 1%. The upper limit is 180%, preferably 16%. On the other hand, the lower limit of the fracture stress is 4 〇 MPa, preferably 50 MPa' upper limit 80 MPa' is preferably 70 MPa. (The thermoplastic resin) Any thermoplastic resin may be used as long as the thermoplastic resin satisfies the above-mentioned tensile properties. The thermoplastic resin may, for example, be a polycarbonate resin, a polyarylate resin, a polyfluorene resin or a polyether oxime resin. Polyphenylene resin, a polymethyl methacrylate resin partially glutamed, and various polymer compositions containing the resin as a main component. The thermoplastic resin is a polycarbonate resin in terms of formability, cost, and the size of the conventional optical disc towel. Polycarbonate resin (hereinafter sometimes abbreviated as "polycarbonate") is a binary The method of reacting with the aliphatic second-inspection alcohol or the sulphonic di-n-nol and Wei vinegar = the reaction method can be carried out by the interface polycondensation method, the smelting vinegar exchange method, the broken yi yi _ Ring carbonated vinegar 201042646 The ring-opening polymerization method of the compound, etc. The polycarbonate resin may be synthesized by using other dihydric phenols in addition to the commonly used bisphenol A type polycarbonate, and has low crystallinity, high heat resistance, or low water absorption. A variety of polycarbonate resins. Polycarbonate resins can also be produced by any of the manufacturing methods. The interfacial polycondensation is usually carried out using a monohydric phenolic terminal terminator. The polycarbonate resin is in addition to the aforementioned dihydric phenol or difunctional. In addition to the alcohol, it may be a branched polycarbonate obtained by polymerizing a trifunctional or higher polyfunctional component, or a branched polycarbonate resin obtained by polymerizing a polyfunctional phenol such as a trifunctional phenol. Further, it may be a copolymerized polycarbonate in which an aliphatic dicarboxylic acid, an aromatic dicarboxylic acid, a polyorganosiloxane component, and a vinyl monomer are copolymerized. In the present invention, bisphenol A is used. The bisphenol A type polycarbonate resin is preferably formed of a derivatized carbonate structural unit, and it is one of the objects of the present invention to improve high-speed rotation resistance by using a general-purpose thermoplastic resin. In the phenol A type polycarbonate resin, a small proportion of other carbonate structural units may be copolymerized, and a polycarbonate resin formed by mixing other carbonate structural units may be used as the dihydric phenol which derivatizes the structure of the motaline. For example, 4,4'-biphenol (4,4'-biphenol>->4, .4' (2,6-dimethyl)diphenol, α,α'-bis(4-hydroxyl) Phenyl)-indole-diisopropylbenzene, α,α'-bis(4-hydroxyphenyl)-m-diisopropylbenzidine, α'-bis(4-hydroxyphenyl)-p-di Isopropylbenzene, 9,9-bis(4-hydroxyphenyl)anthracene, 9,9-bis(4-hydroxy-3-methylphenyl)anthracene, 1,1-bis(4-hydroxyphenyl) Cyclohexane, 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, 1,1-bis(4-hydroxy-3-methylphenyl)cyclohexane 1,1-bis(4-hydroxyphenyl)-4-isopropylcyclohexane, 1,1-bis(3-cyclohexyl-4-hydroxyphenyl)cyclohexane, 4,4'-di Hydroxydiphenyl ether, 4,4'-dihydroxy 201042646-3,3'-dimethyldiphenyl ether, 4,4'-dihydroxydiphenyl sulfone, 2,4'-dihydroxydiphenyl sulfone, 4 , 4'-dihydroxydiphenyl sulfoxide, 4,4'-dihydroxydiphenyl sulphide, 3,3'-diindenyl _4,4'-dihydroxydiphenyl sulphide, bis (3,5 -dimercapto-4-hydroxyphenyl)indole, 1.1-bis(4-hydroxyphenyl)decane, 2,4'-dihydroxydiphenylmethane, bis(2-hydroxyphenyl)decane, double (4-hydroxyphenyl)methane, bis(4-hydroxy-5-nitrophenyl)decane, bis(4-hydroxy-2,6-dimethyl-3-methoxyphenyl)methane, double (4-Hydroxyphenyl)cyclohexylmethane, bis(4-hydroxyphenyl)diphenylmethane, 1,1-bis(4-hydroxyphenyl)ethane, U-bis(4-hydroxy-2-benzene 1,-1-phenylethane, 1,1-bis(4-hydroxy-2-chlorophenyl)ethane, 2,2-bis(3-phenyl-4-hydroxyphenyl)propane, 2, 2-bis(4-hydroxy-3-methylphenyl)propane, 2,2-bis(4-hydroxy-3-ethylphenyl)propane, 2,2-bis(4-hydroxy-3-isopropyl Phenyl)propane, 2,2-bis(3-tert-butyl-4-hydroxyphenyl)propane, 2,2-bis(3-bromo-4-hydroxyphenyl)propane, 2,2-dual ( 3,5-Dibromo-4-hydroxyphenyl)propane, 2.2-bis(4-hydroxyphenyl)-1-phenylpropane, 2,2-bis(4-hydroxyphenyl)-1,1,1 ,3,3,3-hexafluoropropane, 2,2-bis(4-hydroxyphenyl)butane, 2,2-bis(4-hydroxyphenyl)pentane, 2.2-bis(4-hydroxyphenyl) Butane, 4,4-bis(4-hydroxyphenyl)heptane, 2,2-bis(4-hydroxyphenyl)octane, U-bis(4-hydroxyphenyl)decane 1,1-bis(3-methyl-4-hydroxyphenyl)decane, U-bis(2,3-dimethyl-4-hydroxyphenyl)decane, 2,6-dihydroxynaphthalene, pair Hydroquinone, resorcinol, resorcinol substituted with an alkyl group having 1 to 3 carbon atoms, 3-(4-hydroxyphenyl)-1,1,3-trimethyl 3-(4-hydroxyphenyl)-l,1,3-trimethyl indane-5-ol, 1-(4-hydroxyphenyl)-1,3,3-tridecyl Hydroquinone-5-ol, 6,6'-dihydroxy-3,3,3,,3,-tetradecylspiroindene (6,6,-dihydroxy-3,3,3,,3,- Tetramethyl spiroindane), 1-methyl-1,3-bis(4-phenyl)-3-isopropylcyclohexane, 1-mercapto-2-(4-hydroxyphenyl)-3-[1 -(4-Hydroxyphenyl)isopropyl]cyclohexane 201042646 alkane, 1,6-bis(4-hydroxyphenyl)-, 6-hexanedione, and bis(4-hydroxyphenyl)ether. Among the above dihydric phenols, α,α,·bis(4-hydroxyphenyl)-m-diisopropylbenzene and 9,9-bis(4-hydroxy-3-methylbenzene) may also be suitably exemplified.芴, ι,ι_ bis(4-hydroxyphenyl)cyclohexane' 匕b bis(a)-hydroxy_3_methylphenyl)cyclohexane, anthracene, bis (4-hydroxyphenyl)- 3,3,5-trimethylcyclohexane, 3,3,-dimethyl-4,4,-dihydroxydiphenylsulfide, 2,2-bis(4-hydroxy-3-indolylphenyl) ) Propane and bis(4-hydroxyphenyl)decane. The difunctional alcohol derived from the structural unit of the polycarbonate is preferably an alicyclic diol, and examples thereof include cyclohexane dimethanol, cyclohexane diol, and tricyclo (5.2.1.0) decyl didecyl alcohol. Norse, decyl alcohol, decalin-2, 6-dimethanol, spiroglyc〇1, 14; 3 6_dihydro-D-glucitol (1, 4;3,6-dianhydro-D-glucitol), 1,4; 3,6-dihydro-D-mannitol (aW-dianhydro-D-mannitol) and 1,4; 3,6-dihydrate-L - Iditol (1,4; 3,6-dianhydF〇-L-iditol) and the like. A unit other than the cleavage acid structural unit derived from the double argon A is 1 gram per unit of the structural unit. /. It is preferably 20 mol% or less, more preferably 5 mol% or less, and 2 mol% or less is more preferably. Further, the glass transition temperature (Tg) of the polycarbonate used in the present invention is preferably adjusted to 13 Torr or more, preferably 14 〇 ° or more. The upper limit is preferably 180 C or less, and preferably 175 ° C or less. By satisfying the range of the Tg, the tensile strength characteristics of the present invention can be achieved under appropriate forming workability. The Tg is measured in accordance with JIS K-712 at a temperature rise rate of 2 (TC/min. The viscosity average molecular weight (?) of the polycarbonate is preferably in the range of α1·7χ1〇4 to 2 4χ1〇4. The lower limit is 1 · 8χ1〇4 is better '丨85χ1〇4 better. The upper limit is -* 10 201042646 2·2χ104 is better, 2.15xl04 is better. The Gonggong Gentleman ^ 褒子子量 can also be achieved by using a mixture of different molecular weights of polycarbonity, but in the Chenghe towel, the difference between the molecular and the denier should be less than l.OxlO4. The viscosity average molecular weight of the polycarbonate in η was first dissolved from 2 g of polycarbohydrate vinegar to 2 Torr using an Oswald viscometer (Ostwald WSC® meter). The solution of the 2 chloroforms of 匚) is obtained by the specific viscosity calculated by the following formula (8) and the specific viscosity (nsp) = (t-t 〇) / t. [to is the number of seconds of the falling of the methylene chloride, and t is the drop of the sample solution. The viscosity average molecular weight Wc is calculated from the obtained specific viscosity (%ρ) by the following formula,] + i).45xh] 2c (however, [ η] is the ultimate viscosity) [η]=1·23χ10·4Μ083 c = 0.7 The forming material should be formed substantially from strontium carbonate derived from the double A, and the average molecular weight of the viscosity is! 7χ1〇4~mV polycarbonate resin. In the present invention, "real f" means that the structural unit is preferably at least %, and 95 is more preferably as above, more preferably. The range of the ester structure sheet is 98% by mole of the total knot. The 'viscosity average molecular weight of the formed material relative to the carbonate structure n-portion derived from the double-extension is i 7 ... The tree fat braided ~=1 poly factor contains fatty acid _, can get good release, in the middle < Under the condition of the shape, it is possible to obtain a well-formed pit or groove shape = a pan and a small amount of an umbrella stand σ and a green plate. On the other hand, the presence of this fat _ does not reduce the resistance of 201042646 to high-speed rotation. The molding material may be formed by mixing two or more kinds of polycarbonate resins having a viscosity average molecular weight of from 1. 7 χ 104 to 2.4 χ 104 in a carbonate structural unit derived from bisphenol A. (Component other than resin) In the present invention, a release agent, a thermal stabilizer, and the like which are preferably mixed with the molding material are preferably used. (1) Release agent The thermoplastic resin used in the present invention, particularly a polycarbonate resin, is preferably mixed with a release agent. A known product can be used as the release agent. For example, a fatty acid ester, a polyolefin wax (a polyethylene wax, a 1-ene polymer, etc., a compound which denatured with a functional group containing acid-denatured etc.), an anthrone compound, a fluorine compound can also be used ( A fluoro oil represented by a polyether base ether, a stone butterfly, a beeswax, or the like. Among these, fatty acid esters are preferred from the viewpoints of ease of handling, release property, and transparency. The release agent is preferably 0.005 to 0.2 part by weight, more preferably 0.007 to 0.1 part by weight, more preferably 0.01 to 0.06 part by weight, per 100 parts by weight of the thermoplastic resin. When the amount of addition is less than the lower limit of the above range, the improvement in release property is insufficient, and when it exceeds the upper limit, it is likely to cause a bad influence on the contamination of the stamper. Among the above-mentioned suitable release agents, fatty acid esters can be exemplified. The fatty acid ester is an ester of an aliphatic alcohol and an aliphatic carboxylic acid. The aliphatic alcohol may be a monohydric alcohol or a dihydric or higher polyhydric alcohol. Further, the carbon number of the alcohol is suitably in the range of 3 to 32, and more preferably in the range of 5 to 30. The monohydric alcohol may, for example, be 1012 201042646 diconcanol, myristyl alcohol, cetyl alcohol, stearyl alcohol, decyl alcohol, tetradecyl alcohol, ceryi alcohol and Triacontanol, etc. The polyol may, for example, be pentaerythritol (pentaerythdtol), dipentaerythritol, tripentaerythritol, polyglycerol (trimeric/diglyceride), ditrimethylolpropane, xylitol, sorbitol and mannitol. Wait. The fatty acid ester of the present invention is preferably a polyhydric alcohol. On the other hand, the aliphatic citric acid is preferably a carbon number of from 3 to 32, particularly preferably an aliphatic carboxylic acid having a carbon number of from 10 to 22. The aliphatic carboxylic acid may, for example, be citric acid, undecanoic acid, dodecanoic acid, tridecanoic acid, tetradecanoic acid, pentadecanoic acid, palmitic acid (palmitic acid), heptadecanoic acid or octadecanoic acid (stearin). Acidic, nonadecanic acid, icosanoic acid, and saturated aliphatic tartrates such as oleic acid (sandic acid) and palmitolic acid, oleic acid (〇leic acid), linoleic acid, iin〇ienic acid, eicocosenoic acid, eicosapemaen〇ic add, and eleven An unsaturated aliphatic tetamine such as cet〇leic acid. Among the above, the 'aliphatic carboxylic acid preferably has 14 to 20 carbon atoms. Among them, saturated aliphatic carboxylic acids are fortunate. The aliphatic carboxylic acid is generally produced from natural fats and oils such as animal fats and oils (such as tallow and lard) or vegetable oils (such as palm oil), so these aliphatic carboxylic acids generally have different carbon atoms. a mixture of other carboxylic acid components. Therefore, the aliphatic carboxylic acid type contains a mixture of other slow-acids produced by natural oils and fats. The acid value in the fatty acid ester is preferably 20 or less (which may be substantially 0). However, in the case of a full ester, in order to improve the release property, it is preferred to contain a considerable amount of fatty acid. In this regard, the acid value in the full ester is preferably in the range of 3 to 15. Further, the enthalpy of the fatty acid ester is preferably 10 or less (may be substantially 0). These characteristics can be obtained by the method specified in JIS K 0070. The fatty acid ester may be either a partial ester or a full ester. In the present invention, a partial ester is preferred from the viewpoint of good release property and durability. Among them, monoglyceride is preferred. Monoglycerides are mainly composed of glycerin and fatty acids. Suitable fatty acids may, for example, be saturated or fatty acids such as stearic acid, palmitic acid, sorbic acid, arachic acid, montanic acid and lauric acid, linoleic acid and sorbic acid. The unsaturated fatty acid is preferably composed mainly of glycerin monooleic acid of stearic acid, citric acid and palmitic acid. Further, the fatty acid is a mixture of natural fatty acids and becomes a mixture as described above. The monoglyceride may be used together with other release agents, particularly fatty acid full esters, but it is preferred to use a monoglyceride as a main component when used. That is, it is preferable to use 6% by weight or more of the release agent 1% by weight. Furthermore, the 'parts are mostly inferior to the full esters from the point of being intended for thermal stability. In order to improve the thermal stability of the portion S, it is preferable to use part of S, and less than 5 ppm is less than 5 ppm, which is less than a better sodium content. The fatty acid partial ester having a sodium metal content of less than 1 ppm can be produced by purifying the fatty acid portion by a usual method and purifying it with molecular steam. The body σ can be removed by using a spray nozzle (Spray Nozzle) degassing device to remove gas components and low-folk points, and the temperature of the hall is 120~i5 (rc, vacuum reading ~ GQ3kpa) The condition is removed by removing the cerium alcohol component such as glycerin, and the molecular vapor evaporation apparatus is used to obtain a high-purity fatty acid fraction at a temperature of 160 to 23 (TC, vacuum degree 〇1 to 〇2T〇rr). _ As a method of steaming, etc., sodium metal is removed as a vapor residue. By repeating the molecular vaporization, the purity of the product can be further improved, and a partial fatty acid ester having a lower sodium metal content can be obtained. In addition, it is important to prevent the incorporation of sodium metal components from the external environment by sufficiently improving the airtightness by an appropriate method in advance. The fatty acid ester can be obtained from a professional manufacturer (for example, Riken). (ii) Phosphate-based stabilizers In the present invention, 'thermoplastic resins, especially polycarbonate resins, are preferred to improve the thermal stability during forming processing. Further, various phosphorus-based stabilizers are further mixed. Examples of the phosphorus-based stabilizers include phosphorous acid, phosphoric acid, phosphinic acid, phosphonic acid, and the like, and the like. Tertiary phosphine. Specifically, the phosphite compound may be exemplified by triphenyl phosphite vinegar, tris (nonylphenyl) phosphite, and thirteen decyl amide. Tridecyl phosphite, trioctyl phosphite, trioctadecyl phosphite, didecylmonophenyl phosphite , dioctyl phosphite, diisopropyl phenyl phosphite, monobutyldiphenyl phosphite, decyl diphenyl ylide, octyl diphenyl Phosphate ester, 2,2-methylenebis(4,6-di-tert-butylphenyl)octyl oxalate S, tris(diethyl-based) sub-acid S, di(diisopropyl) Phosphite, tris(di-n-butylphenyl)phosphite, tris(2,4-di-tert-butyl 15 201042646 Substrate, bis(2,6-di-tert-butylphenyl) sub-allate, distearyl pentaerythrk〇1 diphosphite, double (2,4_di-uncle Butyl phenyl) pentaerythritol diphosphite, bis(2,6-t-butyl-4-indolylphenyl)pentaerythritol di squarate, bis(2,6-di-tert-butyl-4-ethyl Phenyl) pentaerythritol diphosphite, phenyl bisphenol octaerythritol diphosphite, bis(nonylphenyl) pentaerythritol diphosphite, dicyclohexyl pentaerythritol diarylate, and the like. Further, other phosphite compounds may also be used in the case of reacting with a dihydric phenol and having a cyclic structure. For example, 2,2,-methylenebis(4,6-di-tert-butylphenyl)(2,4-di-tert-butylphenyl)phosphite, 2,2,-indenyl bis ( 4,6-di-tert-butylphenyl)(2-tert-butyl-4-methylphenyl) discate, 2,2,_methylenebis(4-methyl-4-tert-butyl Phenyl)(2-tert-butyl-4-methylphenyl)phosphite, 2,2,-ethylenebis(4-mercapto-6-tert-butylphenyl) (2-tert-butyl) -4-methylphenyl) phosphite, and the like. The dish ester compound may, for example, be tributyl acid ester, trimethyl silicate, tricresyl citrate, triamyl phosphate, trisodium phosphate, triethyl phosphate or diphenyl cresyl. Phosphate, diphenyl mono-orthoxenyl phosphate, tributoxyethyl sulphate, dibutyl phosphate, dioctyl phosphate, diisopropyl phosphate, etc. Triphenyl ester and trimethyl phosphate are preferred. The phosphonite compound can be exemplified by tetrakis(2,4-di-tert-butylphenyl)-4,4, biphenyldiphosphinic acid S (tetrakis(2,4-ditert-butylphenyl)-4,4 '~ biphenylene diphosphonite), tetrakis(2,4-di-tert-butylphenyl)-4,3'-biphenyldiphosphinate, tetrakis(2,4-di-tert-butylphenyl)-3, 3,-biphenyldiphosphine 16 201042646 acid ester, tetrakis(2,6-di-tert-butylphenyl)_4,4,_biphenyldiphosphinate, tetrakis(2,6-di-tert-butyl) Phenyl)-4,3'-biphenyldiphosphinate, tetrakis(2,6-di-tert-butylphenyl)-3,3'-biphenyldiphosphinate, bis (2) Bis(2,4-di-tert-butylphenyl)-4_phenyl-phenyl phosphonite, bis(2,4-di) tert-Butylphenyl)·3·phenyl-phenylphosphinate, bis(2,4-di-tert-butylphenyl)-3-phenyl-phenylphosphinate, bis(2,6- Di-n-butylphenyl)-3-phenyl-phenylphosphinate, bis(2,6-di-tert-butylphenyl)-4-phenyl-phenylphosphinate, bis(2, 6-Di-tert-butylphenyl)-3-phenyl-phenylphosphinate and the like. Among them, tetrakis(di-tert-butylphenyl)-biphenyldiphosphinate and bis(di-tert-butylphenyl)-phenyl-phenyl-phosphinate are preferred. In particular, tetrakis(2,4-di-tert-butylphenyl)-biphenyldiphosphinate, bis(2,4-di-tert-butylphenyl)-phenyl-phenyl-phosphinic acid It is better. The phosphinate compound can be suitably used in combination with the above phosphite compound having two or more alkyl groups substituted. The phosphonate compound may, for example, be a benzenephosphonic acid dimethyl ester, a phenylphosphonic acid diacetate or a diphenyl phenylphosphonate. The tertiary phosphine may, for example, be triethylphosphine, tripropylphosphine, tributylphosphine, trioctylphosphine, triamylphosphine, diphenylphosphine, dibutylphenylphosphine or dicumyl. Phosphine, diphenyloctylphosphine, triphenylphosphine, tri-P-methylphenylphosphine, trinaphthylphosphine, diphenylbenzylphosphine, and the like. A particularly suitable tertiary phosphine is triphenylphosphine. The phosphorus-based stabilizer may be used in combination of two or more kinds in combination of one or more kinds. Among the above-mentioned phosphorus-based stabilizers, a phosphite compound or a phosphonite compound 17 201042646 is preferred. In particular, bis(2,4-_-tert-butylphenyl) sulphite g, tetrakis(2,4-di-tert-butylphenyl)-4,4'-biphenyldiphosphinic acid Bis(2,4-di-tert-butylphenyl)-phenyl-phenyl-phosphinate is preferred. In addition, the use of these compounds with the acid ester compound is also a suitable aspect. (iii) Hindered phenol-based stabilizer The thermoplastic resin in the present invention, particularly a polycarbonate resin, can be mixed with a hindered phenol-based stabilizer for the purpose of improving heat stability and heat aging at the time of molding. Examples of the hindered phenol-based stabilizer include α-tocopherol, butylhydroxytoluene, sinapyl alcohol, vitamin E, and β-(3',5'-di-tert-butyl-4'. -Hydroxyphenyl)propionic acid (n-octadecyl-p-(4,-hydroxy-3,5,-di-tert-butylphenyl)propionate), 2-tert-butyl-6-( 3'-tert-butyl-5'-methyl-2'-carbylbenzyl)-4-methylphenylpropionic acid S (2-tert-buty 1-6-(3'-tert-butyl) -5'-methyl-2'-hydroxybenzyl)-4-methylphenyl acrylate), 2,6-di-tert-butyl-4-(1^,1^-dimethylaminoindenyl)benzene, 3,5- Di-tert-butyl-4-hydroxybenzylphosphonic acid diethyl ester, 2,2'-methylenebis(4-methyl-6-tert-butylphenol), 2,2'-methylene double (4 -ethyl-6-tert-butylphenol), 4,4'-methylenebis(2,6-di-tert-butylphenol), 2,2'-methylenebis(4-mercapto-6-ring Hexylphenol), 2,2'-dimethylene-bis(6-α-methyl-benzyl-p-nonylphenol), 2,2'-ethylene-bis(4,6-di-tert-butyl) Phenol), 2,2'-butylene-bis(4-methyl-6-tert-butylphenol), 4,4'-butylenebis(3-mercapto-6-tert-butylphenol), tripartite Alcohol-Ν -bis-3-(3-tert-butyl-4-transyl-5-methylphenyl)propionic acid vinegar (triethylene glycol-N-bis-3-(3-tert-butyl-4-hydroxy-5-) Methylphenyl)propi onate), 1,6-hexanediol bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], 18 201042646 bis[2-tert-butyl-4- Methyl 6-(3-tert-butyl-5-methyl-2-hydroxybenzyl)phenyl]terephthalate, 3,9-bis{2-[3-(3-tert-butyl-4) -hydroxy-5-methylphenyl)propenyloxy]-U-dimercaptoethyl}-2,4,8,10-tetraoxaspiro[5,5]undecane, 4,4 '-4,4'-thiobis (6-tert-butyl-m-cresol), 4,4'-thiobis(3-methyl-6) -tert-Butylphenol), 2,2'-thiobis(4-methyl-6-tert-butylphenol), bis(3,5-di-tert-butyl-4-hydroxybenzyl) sulfide, 4 , 4'-di-thiobis(2,6-di-tert-butylphenol), 4,4'-tri- Thiobis(2,6-di-tert-butylphenol), 2,2-thiodiethylbis[3-(3,5-di-tert-butyl-4-phenyl)propionic acid vinegar] 2,2-thiodiethylenebis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]], 4-[(4,6-dioctylthio-1,3,5-three -2-yl)amino]-2,6-di-tert-butylbenzene (2,4-7丨5(11-〇(^>^1;11丨〇)-6-(4-hydroxy-3' ,5'-di-tert-butylanilino)-l,3,5-triazine), N,N'-cyclohexanebis-(3,5-di-tert-butyl-4-hydroxyhydrocinnamate) (&gt ;1,1^'-hexamethylene-bis(3,5-di-tert-butyl-4-hydroxy-hydrocinnami de)), N,N'-bis[3-(3,5-di-tert-butyl-4 -hydroxyphenyl)-propanthine (N,N'-bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hy drazine), 1,1,3-tri 2-methyl-4-hydroxy-5-tert-butylphenyl)butane, 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxyl Benzyl)benzene, tris(3,5-di-tert-butyl-4-hydroxyphenyl)isocyanurate, tris(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)isocyanurate, 1,3,5-tri 2[3(3,5- Di-tert-butyl-4-hydroxyphenyl)propenyloxy]ethylisocyanurate and tetrakis[-indenyl-3-(3',5'-di-tert-butyl-4-hydroxyphenyl) Propionate] A. These are readily available. The above-mentioned hindered antioxidants may be used alone or in combination of two or more. The amount of the (ii) filling stabilizer and (iii) the resistive antioxidant is preferably 0.0001 to 1 part by weight, preferably 0.001 to 0.1 part by weight, and 0.005 to 0.1 part by weight based on 100 parts by weight of the thermoplastic resin. Better. When the stabilizer is too small compared with the above range, it is difficult to obtain a good stabilization effect. When the amount exceeds the above range, the physical properties of the material may be lowered or the mold may be contaminated. In the thermoplastic resin of the present invention, other antioxidants than the above-mentioned hindered g-separation antioxidant can be suitably used. The other antioxidant may, for example, bepentaerythritol tetra(3-mercaptopropionate) or pentaerythritol tetra(3-dodecylthiopropionic acid) (pentaerythritol tetra(pentaerythritol tetra) 3-laurylthiopropionate)) and glycerol-3-stearylthiopropionate. The amount of the other antioxidant to be used is preferably 0.001 to 0.05 parts by weight based on 100 parts by weight of the thermoplastic resin. The thermoplastic resin in the present invention may additionally contain an ultraviolet absorber, a light stabilizer, a bluing agent, a fluorescent dye, a charge preventing agent, an infrared absorbing agent, a dye, a flame retardant, a hydrolysis improving agent, and an inorganic filler. , antibacterial agent, photocatalyst antifouling agent, light diffusing agent, white pigment for light reflection, etc. It can be appropriately selected and contained in these reagents and mixing amounts which do not hinder the manufacture of the optical disc. The bluing agent should preferably contain 0.05 in the resin material. ～3.0 ppm (weight ratio). As a representative example of the bluing agent, Bayer's MACROLEX Violet B and MACROLEX Blue RR, and Clariant's 20 201042646 Polysynthren Blue RLS (Polysynthren Blue RLS) and the like can be exemplified. The fluorescent dye (including a fluorescent whitening agent) may, for example, be a coumarin-based fluorescent dye, a benzopyran-based fluorescent dye, an anthraquinone fluorescent dye, a fluorene-based fluorescent dye, or a fluorene-based fluorescent dye. Dye, xanthene-based fluorescent dye, xanthone-based fluorescent dye, thioxanthene-based glory dye, thioxanthone (thioxa) Nthone) is a work light dye, a thiazine fluorescent dye, a diaminostilbene fluorescent dye, etc. A fluorescent dye (containing a fluorescent whitening agent) is mixed with respect to the thermoplastic resin 1 In the present invention, since the molding material is more likely to be yellowish than the material for a conventional optical disk substrate, it is possible to add a dye to adjust an appropriate hue. In the case of the substrate molding material of the present invention, a part of the resin molded article recovered from the market is added as a resin. In the case of the material, it can be used to adjust the hue of the material. The resin molded article recovered from the market can suitably exemplify a headlamp assembly for a vehicle, a CD, a DVD, etc. The blending amount of the dye is 1 Torr relative to the weight of the thermoplastic resin. The fraction is preferably 0.0001 to 1 part by weight. The hydrolysis inhibitor may be exemplified by an epoxy compound, an oxetane compound, a decane compound, and a phosphonate. (Production of molding material) The production method of the molding material can be a method for producing a material for a disc formed of a known polycarbonate resin. That is, the polycarbonate resin and the additive can be preliminarily The human extruder performs the smelting and kneading, and the extruded filament cold portion is 'cut by the granulator' to produce a granular shaped material. Although the extruder can be used for single-axis extruder and biaxial extrusion. It is preferable to use a twin-screw extruder from the viewpoint of any kind of productivity and kneading property of the machine. The twin-screw extruder is exemplified by ZSK (trade name, manufactured by We酣 & Pfleiderer Co., Ltd.). Specific examples of the same type are exemplified by TEX (trade name, manufactured by Nippon Steel Co., Ltd.), TEM (product name manufactured by Toshiba Machine Co., Ltd.), kappa χ _ Kobe EL Steel Co., Ltd., and the like. The extruder is preferably an extruder having a degassing gas which can decompose the moisture generated in the raw material and the volatile gas generated from the melt-kneaded resin. It is preferable to provide a vacuum pump for efficiently discharging the generated moisture or the volatile rolled body from the squeezing port to the outside of the extruder. Further, a screen for removing foreign matter or the like mixed in the extruded raw material may be provided in a region in front of the head of the extruder die to remove the foreign matter from the resin composition. The screen may be exemplified by a metal mesh, a screen changer, a sintered metal sheet (filter, etc.). The additive may also be supplied to the extruder independently, but it is preferred to premix with the resin raw material as described above. The premixing means may be exemplified by a Nauta Mixer, a V-type mixer, a Henschel Mixer, a mechanical chemical stirring device, an extrusion mixer, and the like. A more suitable method is to mix the part of the raw material with the additive to form a master agent, for example, using a high-speed mixer like a Henschel mixer, and then use the non-high-speed mixer like a Notta mixer to the main agent substance and the remainder. A method of mixing all of the resin raw materials. The resin extruded from the extruder is either directly cut to pelletize it, or a tow is formed, and the tow is cut by a granulator to be pelletized. When it is necessary to reduce the influence of external dust, etc., it is advisable to clean the atmosphere around the extruder. Further, in the production of the pellet, various methods have been proposed in the polycarbonate resin for optical discs, and it is preferable to carry out narrowing of the particle shape distribution, further reduction of the missing material, and fine powder generated during transportation or transportation. Further reduction of the granules, as well as a reduction in the bubbles (vacuum bubbles) generated inside the tow and the granules. The reduction of the leakage cut can be exemplified by the temperature management of the filament when the granulator is cut, the ion wind blown during the cutting, the calibration of the inclination of the granulator, and the proper mixing of the release agent. And a method of filtering the mixture of the cut particles and water to separate the particles and water and the missing material, and the like. An example of the measurement method is disclosed in, for example, Japanese Laid-Open Patent Publication No. 2003-200421. These treatments can be used to achieve a high cycle of forming, as well as a reduction in the proportion of undesirable conditions like a knife. In the present invention, the amount of leakage of the molding material is preferably 10 ppm or less, and preferably 5 ppm or less. Here, the missed cut refers to a fine particle of fine particles of a specified size than a Jis standard sieve passing through a sieve opening of 1 mm. The shape of the particles may be a general shape such as a cylinder, a corner column or a sphere, and a cylinder (including an elliptical cylinder) is preferable. The diameter of the cylinder is preferably 1.5 to 4 mm, preferably 2 to 3 5 mm. The ratio of the short diameter to the long diameter in the elliptical cylinder is preferably 6% or more, and more preferably 65% or more. Further, the length of the cylinder is preferably 2 to 4 mm, and preferably 2.5 to 3.5 mm. (Molding) An injection molding machine (including injection compression into a stepper) is used for the production of a BD substrate from a molding material, more specifically, a molding material having a pellet shape. The injection molding machine may be a molding machine that is generally used, and from the viewpoint of suppressing the generation of a chemical compound and improving the reliability of the substrate, the cylinder and the screw are preferably = 23 201042646, and the resin is low in performance and exhibits impurities. , _ loss of material made. The conditions for injection molding are preferably 300~450°C, 320~4〇〇Ck, mold temperature 50~180T: preferably 80~140〇C, excellent condition can be obtained under k conditions. A bd substrate with mechanical properties and shape. The environment under the forming process should be as clean as possible for the purposes of the present invention. Further, it is considered that it is important to remove the moisture sufficiently dry from the material for forming or to prevent the retention of the decomposition of the molten resin. The optical disk substrate of the present invention includes not only the injection molding of the injection compression molding but also the hot pressing (four), the true linear shrinkage molding, and the thermal fusion transfer molding. However, from the point of view of its productive Wei point, it is better to shoot the money, especially the injection into the open. In other words, by using injection compression molding, it is possible to produce a substrate which is excellent in productivity and excellent in resistance to high-speed rotation. (Substrate) The thickness of the optical disk substrate is preferably l_lmm. The optical disc substrate has a fine concavo-convex pattern, and the fine concavo-convex pattern has grooves and pit rows in the track direction and has a gauge of 0.1 to 0.8 μm, and an optical depth of λ/8η to λ/2η (however, λ is The wavelength of the laser light used for recording and reproduction. η is the refractive index of the substrate in which the concave-convex pattern is formed in the wavelength λ. The present invention can be applied to such a disc substrate having a fine concavo-convex pattern. (Compact Disc) In the present invention, the 'disc system' has a substrate on which a fine concavo-convex pattern is formed, a light-reflecting layer, and a cover layer, and rotates to read and write a disc on which information is recorded from the cover layer side. 24 201042646 By using the present invention, it is possible to provide a compact disc which is excellent in high-speed rotation resistance. The present invention can be applied to a disc having a maximum peripheral speed of 50 to 200 m/sec in the outer peripheral portion when the information is read and written. The lower limit of the maximum peripheral speed is preferably 70 m/sec, and i 〇〇 m/sec is preferred. BD (Blu-ray Disc) is formed on the substrate to form at least a light reflecting layer and a covering layer. It is preferable to form a recording layer composed of a single layer or a plurality of recording films and a recording film protective film between the light reflecting layer and the cover layer. These layers can also be known in a plural form, especially in the form of two layers. In the optical disc having a recording layer such as a write-on type BD-R and a rewritable BD-RE, the "high-speed rotation required" is high, and the present invention can be effectively applied as appropriate. Further, in order to prevent bending of the substrate during use, a moisture-proof film is usually further formed on the reverse side surface of the layer on which the coating layer is provided. Further, a hard coat layer is provided on the outermost cover layer as needed. (Recording film) The case where the recording film is a write-once optical disk is a film in which the optical characteristics are irreversibly changed by irradiation of laser light or a concave-convex shape is formed. For example, cyanine, phthalocyanine, or azo can be decomposed by heating due to irradiation of laser light, which changes the optical constant and deforms the recording film due to volume change. And organic pigments such as indoaniline. In particular, an organic dye of an organic metal complex and an indoleamine metal complex compound can be suitably used. To improve the sensitivity of laser light, the complex is complexed with other organic pigments. A metal complex compound of an azo-based metal complex compound and an indole amide-based metal complex compound, and a combination with other organic coloring matter are described in, for example, JP-A-2005-271587 and JP-A-2008 - 262661 and the like. In the case of a rewritable optical disk, the recording film is a film (phase change recording type) formed by a material which generates a reversible phase structure change between an amorphous state and a crystalline state by irradiation of laser light, or in a vertical direction of the film surface. A magnetic thin film (magneto-optical recording type) having a magneto-optical effect capable of recording, reproducing, and erasing information can be formed by having an easy magnetization direction 'and an arbitrary inverted magnetic domain. As the recording film of the phase change recording type, for example, GeSbTe system, InSbTe system, InSe system, InTe system, AsTeGe system, TeOx-GeSn system, TeSeSn糸, FeTe 糸, SbSeBi system, and BiSeGe system of a chalcogen material can be used, and GeSbTe is used. The film produced is suitable because it has a good stability when it is repeatedly recorded. As the magneto-optical recording type recording film, for example, an amorphous alloy film of a rare earth element such as TbFe, TbFeCo, GdTbFe, NdDyFeCo, NdDyTbFeCo, NdFe, PrFe, and CeFe, and a transition metal element can be used, and the parent alloy is connected by a father. A two-layer film, an artificial lattice multilayer film such as Co/Pt or Co/Pd, or a CoPt-based alloy. Further, in the present invention, it is preferable to use a dielectric material for the recording film protective film sandwiching the recording film. Thereby, the difference in reflectance between the crystal phase and the amorphous phase of the medium and the magneto-optical effect can be improved, and the storage property of the recording layer can be improved, the adhesion of the recording layer and the cover layer can be improved, and the thermal conductivity can be adjusted. Wait. The dielectric material is preferably a material having a refractive index η, that is, a material of 丨6, more preferably a material of 1.8. Specifically, a material formed of a nitride, an oxide, a carbonized material, or a sulfide of zn, Si, Ti, Te, Sn, Mo, Ge, Nb, or Ta is preferable. For example, using § lanthanide, SiON system, Ta2〇3, Ti〇2, Al2〇3, γ2〇3, Ce〇, La2〇3, In2〇3, GeO, Ge02, M0O2, Nb205, PbO, SnO , Sn02, Bi203, Ta2〇5, TeO, Te02W02, Ti02 'w〇3, Sc203, ZnO, Zr02, etc., nitrides such as TaN, AIN, SiN, AlSiN, etc., ZnS, Zn0-Ga203, Sb2S3 a sulfide of CdS, In2S3, Ga2S3 'GeS, SnS2, PbS, Bi^3, or the like, or a mixed material of the above or a laminate of the same as a protective film. (Light-reflecting layer) — The light-reflecting layer is preferably a material having a higher reflectance than the recording layer for the laser light for the magnetic head for evaluation. Specifically, it is preferable to select a material having a refractive index of 0 and an extinction coefficient k of an optical constant in the wavelength of the laser light to obtain n'3.5 and k23.5. More suitable is 2.5 and 4-5gkS 8.5. The medium produced under this condition can further improve the characteristics of the reproduced signal. 〇 In addition, when the signal under heating due to laser light is recorded, if the thermal conductivity of the light-reflecting layer is too high, the heat diffusion is large, and strong laser power is required. Therefore, it is preferable that the thermal conductivity of the material used for the light-reflecting layer of the semiconductor light-receiving recording signal 'the light-reflecting layer can be 1 〇〇[W/(m .K)] or less, further 80 [w/(m · κ)] is better. Materials satisfying such conditions may be exemplified by adding Au, Tl, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Tc, Re, Ru, Os, Ir, Pd, Pt, Cu to A1 or Ag. And an alloy of the above elements such as Nd. Specifically, for example, an AgPdCu alloy, an AgCuAu alloy, an AgCuAuNd alloy, an AgCuNd 27 201042646 alloy, or the like. Furthermore, the content of the added elements in these alloys is preferably incorporated into 〇1 to 10 atoms. / range of 〇. As a material other than metal, a low refractive index film and a high refractive index film may be alternately laminated to form a multilayer film, which is used as a light reflecting layer. The reflective layer has a film thickness ranging from 10 to 500 nm, but suppresses degradation of the reproduced signal characteristics due to a decrease in reflectance, and can be recorded at a laser power of 15 mW, preferably 30 to 200 nm, and 40 to 100 nm. Particularly suitable. The light reflecting layer can be formed on the substrate by vacuum evaporation, sputtering or ion plating. Further, in the case of reproducing a dedicated optical disc medium, only the above-mentioned light reflecting layer is formed on the substrate, and the same material can be used as the material. (Cover Layer) A method in which a curable resin such as an ultraviolet curable resin (hereinafter abbreviated as "UV curable resin") is applied and cured by a method represented by spin coating (ie, spin coating) may be used. And a method of laminating an optical film typified by a polycarbonate resin film (that is, a film sticking method). The optical film for the coating layer can be used as a commercially available optical film from PURE-ACE (registered trademark) manufactured by Teijin Co., Ltd. In the film sticking method, a method of bonding a film by applying a curable compound such as a UV curable resin to a substrate side may be used, and a film coated with an adhesive and an adhesive may be attached to the film side in advance. Any of the methods of hardening as needed. Examples of the pressure-sensitive adhesive include an acryl-based pressure-sensitive adhesive and an oxime-based pressure-sensitive adhesive. In particular, propylene can be suitably used, and an azo-based metal complex and an anisidine-based metal are used. In the method of recording the organic dye of the compound, in order to form a void easily, a film sticking method is used, and an adhesive is preferably used for the bonding. The Tga〇t of the adhesive is preferably below, _15 it 28 201042646 below, preferably below -25 °C. EXAMPLES Hereinafter, the present invention will be described in detail by way of examples, but the invention should not be construed as limited. Further, the measurement of various characteristics in the examples was carried out by the following method. (I) Evaluation item (1-1) Viscosity average molecular weight The viscosity average molecular weight of the particles was 2 (TC was obtained by using an Oswald viscometer to dissolve a solution of 0.7 g of polycarbonate particles in 100 ml of dichloromethane to obtain a utilization. The specific viscosity (rjsp) calculated by the following formula is calculated from the specific viscosity (r) sp by the following formula to calculate the viscosity average molecular weight (M). Specific viscosity (r(sp) = (tt〇)/t0 [t〇 is the number of seconds of dropping of methylene chloride, t is the number of seconds of falling of the sample solution] η5ρ/π[η]+〇·45χ[η]2( (However, [η] is the ultimate viscosity) [η]=1·23χ10-4Μ0.83 c=0.7 (1-2) Determination of tensile fracture stress and nominal tensile failure strain The particles are injection molded to a length of 175 mmx width. The test piece of lOmmx thickness of 4 mm was measured for tensile breaking stress (unit: MPa) and nominal tensile failure strain (unit: %) at 23 ° C and 80 ° C according to ISO 527-1 and 527-2. The test speed was carried out at 5 mm/min. (1-3) Evaluation of the bending amount of the optical disc A method of forming a disc substrate having a diameter of 120 mm d) and a thickness of 1.1 mm as described later (2), and on the signal surface side of the optical disc substrate In the case of a coating layer made of a polycarbonate resin, a coating layer made of a polycarbonate resin (PURE_ACE (registered trademark) D92 manufactured by Teijin Chemicals Co., Ltd.) is used as a disc. The disc is bent. The amount of change was measured by using the three-dimensional shape measuring device DLD-3000U' manufactured by Japan EM Co., Ltd. to measure the radial inclination from the center of the optical disk 55〇1111. (1-4) The rotation strength test of the disk was carried out in the same manner as in the above (1-3), and the disk was attached to the disk at a rotational speed of 30,000 per minute for 5 minutes, and the rotation strength test was performed. In this evaluation, 10 discs are used. The judgment of any tamper in the same degree of rotation is χ, without damage, but the rupture of any tamper on the signal surface (radius 25mm~55mm) from the inner peripheral part In the case where the Δ′ 1 sheet was not broken and the crack was not formed on the signal surface, the determination was made 〇. Examples 1 to 4 and Comparative Example 1 (1) The production of the substrate molding material was prepared based on the following points: The molding material for a substrate formed by mixing ratios described above, that is, according to the preparation composition described in Table ,, each raw material is weighed into a polyethylene bag, and the bag is sufficiently rotated in the up-and-down direction and the left-right direction. The blended mixture was uniformly dry-blended, and the blended mixture was supplied to the ith inlet of the last portion by a squeeze-type twin-screw extruder (TEX30a_35Bw_3V, manufactured by Nippon Steel Co., Ltd.) having a screw diameter of 30 mln. The head temperatures were 255 in Examples 1 to 4, respectively, 〇, 26 〇t, 265; > c and 275 ° C. The number of screw rotations was 25 rpm, the discharge amount per hour was 15 ky hours, and the extrusion was performed. The vacuum of the gas is performed at a10 kPa. Further, the structure of the screw section 30 201042646 has a kneading zone composed of a kneading disc at the upstream and downstream sides of the squish position. After the extruded tow was cooled in a water bath, it was cut by a granulator to be pelletized. The obtained pellets had a number average diameter of 2.8 mm, a number average length of 3.0 mm, and a missed cut of 3 ppm. The granules were dried at 120 ° C for 6 hours using a hot air dryer. (2) Production of evaluation optical disc The optical disc for evaluation was prepared as follows. First, each of the pellets obtained in (1) was subjected to injection molding of a disc substrate having a diameter of 120 ηηηιφ and a thickness of i.lmm at a cylinder temperature and a mold temperature. In the injection molding machine [SD-40E manufactured by Sumitomo Heavy Industries, Ltd.], a stamper for BD-R (a groove having a gauge length of 32 μm and a depth of 〇·〇3 μm) was attached. On the letter side surface of the obtained optical disk substrate, a 100 nm thin film was deposited by DC sputtering using a Nan Zhou wave magnetron plating apparatus (ILC 3102 type manufactured by ANELVA). This sputtering was carried out using an Ag alloy sputtering target containing 5.0 at% of Nd and 1.0 at% of Bi, and was discharged at a power of 500 W. Other film formation conditions were substrate temperature: 22 ° C, argon pressure: 2 mTorr, film formation rate: 5 nm/sec, back pressure: < 5χ10 6 Torr. The substrate on which the light-reflecting layer was formed was taken out from the sputtering apparatus and fixed to a spin coater. When a film of a coating layer having an inner diameter of 15 mm φ and an outer diameter of 120 ηηηηφ was cut in a vacuum, and a film of a phenolic acrylic acid acetal resin was applied to the disk, which was rotated in a vacuum (Panlite Him (manufactured by Teijin Chemicals Co., Ltd.) Registered trademark) D92). Thereafter, the ultraviolet curable resin is cured by an ultraviolet irradiation device to form a disc. Further, since the presence or absence of the recording layer in the evaluation of the present invention does not have a significant influence on the bending amount and the rotational strength of the optical disk 31 201042646, the evaluation thereof is omitted. The evaluation of the amount of bending of the manufactured disc and the test of the rotational strength were carried out, and the results are shown in Table 1. As is clear from the results of Table 1, it is possible to obtain a good rotational strength which cannot be obtained by a polycarbonate resin material for a general-purpose optical disk by using a resin material having a tensile property at a specific temperature of 80 °C. Furthermore, the symbols in the table indicate the meanings as described below. (The thermoplastic polymer as a main component) PC-1: Linear aromatic polycarbonate resin powder having a viscosity average molecular weight of 15,900 (Panlite (registered trademark) CM-1000 manufactured by Teijin Chemicals Co., Ltd.) PC-2: Viscosity average Linear aromatic polycarbonate resin powder having a molecular weight of 19,700 (Panlite (registered trademark) L-1225WX manufactured by Teijin Chemicals Co., Ltd.) PC-3: Linear aromatic polycarbonate resin powder having a viscosity average molecular weight of 20,800 (Emperor) PCL: a linear aromatic polycarbonate resin powder (Panlite (registered trademark) L-1225WP, manufactured by Teijin Chemicals Co., Ltd.) (Panlite (registered trademark) L-1225WP) Comparative material) AD: Light with a viscosity average molecular weight of 15,500. Polycarbonate resin pellets for discs (Panlite (registered trademark) AD_55〇3 manufactured by Teijin Chemicals Co., Ltd.) (other additives) RA: glycerin and fat with a molecular weight of 343 Monoester derived from a carboxylic acid (manufactured by Riken Vitamin Co., Ltd.: Rikemal S: 100'A) ST: phosphite-based thermal stabilizer (Ciba Specialty Chemicals Co., Ltd.: Irgafosl68; Tri-(2,4-di-tert) - butylphenyl) phosphite 32 201042646 I <Comparative Example 1 1 1 1 1 | 100 I 1 1 100 360 (Ν 〇\ ίη 00 〇〇\ mm Ο ίΠ (Ν 卜 (N mmd X Example 4 〇 (N 1 1 § t 1 0.04 0.01 100 395 112 105 140 od 21,100 Ο οο 130 (N 158 inch d 〇 embodiment 3 1 1 100 1 1 1 0.04 0.01 100 380 | 105 〇 \ L120 I m in Ο Ο ο" (Ν 125 125 in 151 I inch d 〇Example 2 〇〇1 1 1 0.04 0.01 100 I 360 (Ν 〇\ tn 00 105 1 mm Ο ο r·1 Η ο 卜 110 inch inch 132 m ο 〇 Example 1 〇 inch 〇 1 1 1 0.04 0.01 100 360 (Ν 〇\ in 00 100 mm Ο ο ο. 〇〇" f Η inch 114 m ο 〇 unit parts by weight MPa MPa | Image 1 MPa MPa I 1 ΠΠ PC-1 PC-2 PC-3 PC-4 AD- 5503 RA Η in barrel temperature mold temperature fixed side mold temperature movable side filling peak pressure forming period average molecular weight of the fracture stress nominal fracture strain fracture stress nominal fracture strain Ν this S βΗ electric Ι 'ί' disc rotation strength PC Resin: Release agent stabilizer 23°C tensile properties 80°C tensile properties Raw material forming conditions evaluation item 33 201042646 According to the manufacturing method of the optical disk substrate of the present invention, it is possible to provide an optical disk which has excellent resistance to high-speed rotation and can read and write information at high speed. If a specific thermoplastic resin of the present invention is used, a high-speed rotation can be provided. The present invention finds that even a general-purpose bisphenol A type polycarbonate resin can be used as a substrate material for a disc, even if it is a general-purpose bisphenol A type polycarbonate resin. The optical disk substrate having excellent resistance to rotation is excellent in low cost and excellent in recyclability. INDUSTRIAL APPLICABILITY The method of the present invention can be applied to the manufacture of BD (Blu-ray Disc). (None) [Explanation of main component symbols] (None) 34 201042646 103797 Patent _ Request for Proposal Replacement of Manman's Special Description ^ 99.06 曰 (The format and order of this manual should not be changed at all, please do not fill in the ※ part) ※ Application number: ※Application date: Cold, classification: 1. Inventor name··(中中英文) Name"Λ Method of manufacturing optical disc substrate and forming material of optical disc substrate II. Abstract of Chinese invention: 〇 reading and writing iiSiiii; There is a method of manufacturing a disc substrate by high-speed 罝 ί , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Write the cd of the recorded information, and the molding material is a thermoplastic resin with a tensile strain of 80 to 180% and a breaking stress of 40 to 80 MPa according to the tensile strength measurement at 80 ° C. Methods. 1 201042646 Patent Application No. 99103797 Patent Application No. 99.06 VII. Patent Application Range: 1. A method for forming a molding material to manufacture a disc substrate, the optical disc having a substrate having a fine concavo-convex pattern and light reflection The layer and the cover layer are rotated so that the information recorded on the cover layer side is read and written, and the forming material is used in accordance with ISO 527-1 and 527-2, and the nominal fracture is determined in the tensile strength measurement at 8 (TC). A method of a thermoplastic resin having a strain of 80 to 180% and a breaking stress of 40 to 80 MPa. ^2. The method of claim 1, wherein the optical disc is in the maximum circumference of the outer peripheral portion when reading and writing the recording capital The speed is in the range of 5 〇 to 2 〇〇 m / sec. 3_ The method of claim 1 or 2, wherein the optical disc has a recording layer between the light reflecting layer and the cover layer. The method according to any one of the preceding claims, wherein the optical disc substrate has a fine concavo-convex pattern, and the fine concavo-convex pattern has grooves and pit rows along the track direction, and the gauge is 匕丨~(1) The claw has an optical pupil depth of λ/8η to λ/2η (however, λ is the wavelength of the laser light used for recording and reproduction. η is the refractive index of the substrate in which the concave-convex pattern is formed in the wavelength λ). The method of claim 4, wherein the molding material is substantially formed by the acid vinegar structural unit derived from the ambiguous hydrazine, and the viscosity average molecular weight is in the range of 〜24χ1〇4. 6. The method according to any one of the preceding claims, wherein the molding material is formed according to the shape of the carbonated structural unit derived from the double age, 35 201042646, and the viscosity average molecular weight is 100 parts by weight of the polycarbonate resin in the range of 1.7χ104 to 24xl〇4, containing the fatty acid ester 00〇5 to 〇2 parts by weight. 7. A method of using a thermoplastic resin as a forming material for a disc substrate, according to ISO 527 -1 and 527-2, a thermoplastic resin having a nominal strain at break of 8 〇 to 18 (%) and a fracture stress of 8 〇 MPa as a fine embossing at 8 (TC) Pattern The plate, the light reflecting layer and the covering layer are rotated to read and write the forming material of the substrate on which the information is recorded from the side of the covering layer. 8. The method described in claim 7 of the patent application, wherein the optical disc is in reading and writing information The maximum circumference of the outer peripheral portion is in the range of 50 to 20 〇 m / sec. The method of claim 7 or claim 8, wherein the optical disc has a light reflection layer and a cover layer. 1. The method according to any one of the claims 7 to 9 wherein the optical disc substrate has a fine concavo-convex pattern, and the fine concavo-convex pattern is along the obedience side = grooved, pitted row, Its pitch is: its optical depth: ,, ', ~λ/2η (however, λ is the wavelength of the laser light used for recording and reproduction. η疋 is at a wavelength π, and the refractive index of the substrate having the unevenness (four) is formed: • The method described in the seventh to tenth of the patent application scope, the complex-=material is substantially derived from the carbon of the (four) Α The structural unit = formed into a polycarbonate resin having a viscosity average molecular weight of 1.7X104 to 2.4X104. 12. The method of any one of claims 7, wherein the order is 36 201042646 The molding material is formed by using a carbonate structural unit derived from bisphenol A, having a viscosity average molecular weight of 100 parts by weight of the polycarbonate resin in the range of 1.7χ104 to 2·4χ104, and containing 0.005 to 0.2 parts by weight of the fatty acid ester. . 37 201042646 IV. Designated representative map: (1) The representative representative of the case is: ( ). (None) (2) A brief description of the symbol of the representative figure: 5. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: