TW201212022A - Optical discs and UV-curable resin composition for use in the optical discs, cured products and articles - Google Patents

Optical discs and UV-curable resin composition for use in the optical discs, cured products and articles Download PDF

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Publication number
TW201212022A
TW201212022A TW100110053A TW100110053A TW201212022A TW 201212022 A TW201212022 A TW 201212022A TW 100110053 A TW100110053 A TW 100110053A TW 100110053 A TW100110053 A TW 100110053A TW 201212022 A TW201212022 A TW 201212022A
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Taiwan
Prior art keywords
acrylate
resin composition
meth
curable resin
ultraviolet curable
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TW100110053A
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Chinese (zh)
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TWI546803B (en
Inventor
Daisuke Kobayashi
Masahiro Naitou
Jun Kidoba
Hayato Motohashi
Yuichiro Matsuo
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Nippon Kayaku Kk
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Publication of TWI546803B publication Critical patent/TWI546803B/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers
    • G11B7/2542—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers consisting essentially of organic resins
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Polymerisation Methods In General (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

This invention provides an optical disc comprising a cured product layer of UV-curable resin composition as a light-transmitting layer, wherein the UV-curable resin composition comprises (A) poly(tetramethylene glycol)di(meth)acrylate of poly(C2 or C3 alkylene glycol-tetramethylene glycol)di(meth)acrylate as a (meth)acrylate having a structure represented by the following general formula (1)(wherein n represents an integer of 1 to 30), (B) photo-polymerization initiator and (C) (meth)acrylate other than (A). This invention also provides an UV-curable resin composition for use in optical discs, wherein the composition comprises above (A), (B) and (C) (meth)acrylate other than (A), in particular, the resin composition is useful for an optical discs having an organic dye recording layer. The above optical discs exhibit a preferable jitter value after an endurance test. formula(1)

Description

201212022 六、發明說明： 【發明所屬之技術領域】 本發明是有關有記錄層之光碟、及使用於該光碟的紫 外線硬化型樹脂組成物。 【先前技術】 目前，作為實用的光諜記錄媒體者，有在1· 2 mm之 聚碳酸酯基板上’積層有記錄層、反射層、由紫外線硬化 型樹脂所成保護層的CD-R、CD-RW、或將0. 6 mm之聚碳酸 醋基板’與具備記錄層及反射層的0.6 mm聚碳酸酯基板以 紫外線硬化型樹脂黏貼的DVD-R、DVD+R、DVD -RW、DVD+RW、 DVD-RAM 。 又，近年市面上正在出售具有單層型DVD之約5倍記 錄谷里的藍光光碟（BD-R ; Blue-ray Disc)。藍光光碟疋在 1.1 mm的透明或不透明之塑膠製基板上形成反射層、記錄 層及界面層（也稱為介電層），接著，在界面層上積層約〇. 1 咖的光透過層（也稱為覆蓋層）之結構，通過光透過層而記 錄/再生之光碟。在記錄層是使用有機色素或無機化合 物’在界面層是使用光透過性的無機化合物。又，作為光 透過層是使用紫外線硬化型樹脂的硬化物層。 具有由有機色素所成的記錄層之藍光光碟，係在記錄 層上照射雷射光，藉由有機色素的體積變化而利用變形來 進行記錄。目前已有揭示：辅助色素的體積變化，在可得 到優異的記錄信號特性（例如，抖動特性）的目的，以硬化 性樹脂形成光透過性的覆蓋層，與記錄層面對面之界面領 4 322934 201212022 域的彈性率在烈^為40 MPa以下作為特徵之光資訊記錄 媒體（專利文獻1)，在有機色素之記錄層上具有於25°C的 • 彈性率為34至96 MPa之樹脂硬化物層的光資訊記錄媒體 ' (專利文獻2)。然而，在此等之文獻中’則完全沒有揭示 何種組成之樹脂組成物的硬化物層可以達成如此之彈性 率。 又’作為前述光碟記錄媒體的可信度之評估指標，係 在溫度80°C/相對濕度80%RH的環境下，進行放置1〇〇小 時之環境試驗。為了將該環境試驗前後的記錄信號的劣化 程度符合在所預定之範圍以内，有揭示在界面層上形成於 5°C與55°C之貯藏彈性率皆在i〇〇MPa以下，並且5。(：的貯 藏彈性率與55°C的貯藏彈性率的比率為10以下，含有柔 軟性聚胺基甲酸酯丙烯酸酯作為主成分、含有單官能丙烯 酸酯作為稀釋劑的硬化性樹脂的硬化物層，或，含有聚胺 基曱酸自旨丙烯酸酯作為主成分、含有單官能丙烯酸酯及多 官能丙烯酸酯作為稀釋劑的硬化性樹脂之硬化物層的技術 (專利文獻3)。然而，在此文獻中，如上述，只揭示主成 分為聚胺基甲酸酯丙烯酸酯、稀釋劑為單獨之單官能丙烯 酸酉旨’或併用單官能丙烯酸酯及多官能丙烯酸酯而已，相 關之具體的成分組成則未揭示。 [先前技術文獻] (專利文獻） 專利文獻1 :日本特開2008-123631號公報 專利文獻2:日本特開2008-269703號公報 5 322934 201212022 專利文獻3:日本特開2009-026379號公報 【發明内容】 [發明欲解決之課題] 本發明之目的是提供具有記錄層，特別是有機色素記 錄層’與本發明之紫外線硬化型樹脂組成物的硬化物層的 光碟，及可以賦予優異的記錄信號特性及耐久性的紫外線 硬化型樹脂組成物。 [解決課題之手段] 本發明人等為了解決前述課題經過精心研究之結果， 發現含有具一般式（1)結構的（甲基）丙烯酸酯之紫外線硬 化型樹脂組成物的硬化物層及記錄層，較佳是有機色素記 錄層的光碟，顯示出優異的記錄信號特性及耐久性，遂而 完成本發明。 亦即’本發明係有關下述的（^至。^者。 (1) 一種光碟，其係具備··含有（A)具有下述一般式（1)所 示結構的（曱基）丙烯酸酯（但是，丁二醇（曱基）丙烯 酸酯除外）、（B)光聚合起始劑、及（C)上述（A)以外之 (甲基）丙婦酸醋之紫外線硬化型樹脂組成物的硬化 物層及記錄層。 式（1) 和4H 士⑴ 式中’ η表示1至30的整數。 322934 6 201212022 (2) —種有記錄層之光碟用紫外線硬化型樹脂組成物，其 係含有（A)具有下述一般式〇)所示結構的（曱基）丙 稀酸醋（但是’ 丁二醇（甲基）丙烯酸酯除外）、（B)光 ' 聚合起始劑及（C)上述（A)以外之（甲基）丙烯酸酯9 式（1)201212022 VI. Description of the Invention: [Technical Field] The present invention relates to a disc having a recording layer and an ultraviolet curable resin composition used for the optical disc. [Prior Art] As a practical optical spy recording medium, there is a CD-R in which a recording layer, a reflective layer, and a protective layer made of an ultraviolet curable resin are laminated on a polycarbonate substrate of 1.2 mm. CD-RW, or a DVD-R, DVD+R, DVD-RW, DVD with a 0.6 mm polycarbonate substrate and a 0.6 mm polycarbonate substrate with a recording layer and a reflective layer adhered to an ultraviolet curing resin. +RW, DVD-RAM. In addition, in recent years, a Blu-ray disc (BD-R; Blue-ray Disc) having a record of about 5 times that of a single-layer type DVD has been sold. The Blu-ray disc is formed on a 1.1 mm transparent or opaque plastic substrate to form a reflective layer, a recording layer and an interfacial layer (also referred to as a dielectric layer), and then a layer of light transmission layer of about 1 coffee is laminated on the interface layer ( Also known as a cover layer structure, a disc recorded/reproduced through a light transmission layer. In the recording layer, an organic dye or an inorganic compound is used. In the interface layer, an inorganic compound which uses light transparency is used. Further, as the light transmitting layer, a cured layer of an ultraviolet curable resin is used. A Blu-ray disc having a recording layer made of an organic dye is irradiated with laser light on a recording layer, and is recorded by deformation by a change in volume of the organic dye. It has been disclosed that the volume change of the auxiliary dye is such that a light-transmissive coating layer is formed with a curable resin for the purpose of obtaining excellent recording signal characteristics (for example, jitter characteristics), and a face-to-face interface with the recording layer 4 322934 201212022 The optical information recording medium having a modulus of elasticity of 40 MPa or less (Patent Document 1) has a resin cured layer having an elastic modulus of 34 to 96 MPa at 25 ° C on the recording layer of the organic dye. Optical information recording medium' (Patent Document 2). However, in these documents, there is no disclosure of the composition of the resin composition of the cured layer to achieve such a modulus of elasticity. Further, as an evaluation index of the reliability of the optical disk recording medium, an environmental test was carried out for one hour in an environment of a temperature of 80 ° C / a relative humidity of 80% RH. In order to conform the degree of deterioration of the recording signal before and after the environmental test to within the predetermined range, it is revealed that the storage elastic ratios formed at 5 ° C and 55 ° C on the interface layer are all below i 〇〇 MPa, and 5. (The ratio of the storage modulus of elasticity to the storage modulus of 55 ° C is 10 or less, and the cured product of the curable resin containing a flexible polyurethane acrylate as a main component and a monofunctional acrylate as a diluent A layer or a technique of a cured layer of a curable resin containing a polyamino decanoic acid as a main component and a monofunctional acrylate and a polyfunctional acrylate as a diluent (Patent Document 3). In this document, as described above, only the main component is a polyurethane acrylate, the diluent is a single monofunctional acrylate, or a monofunctional acrylate and a polyfunctional acrylate are used together, and the specific components are related. The composition is not disclosed. [Prior Art Document] (Patent Document) Patent Document 1: JP-A-2008-123631 Patent Document 2: JP-A-2008-269703 No. 5 322934 201212022 Patent Document 3: JP-A-2009- OBJECTIVE OF THE INVENTION [Problem to be Solved by the Invention] An object of the present invention is to provide a recording layer, particularly an organic dye recording layer, and the present invention. The optical disk of the cured layer of the external hardening type resin composition and the ultraviolet curable resin composition which can provide excellent recording signal characteristics and durability. [Means for Solving the Problems] The present inventors have carefully studied in order to solve the above problems. As a result, it has been found that a cured layer and a recording layer of an ultraviolet curable resin composition containing a (meth) acrylate having a structure of the general formula (1), preferably an organic dye recording layer, exhibit excellent recording signal characteristics. And the durability, and the present invention has been completed. That is, the present invention relates to the following (^ to ^. (1) A type of optical disk, which is provided with (A) having the following general formula (1) (Mercapto) acrylate of the structure shown (except for butanediol (mercapto) acrylate), (B) photopolymerization initiator, and (C) (meth) propylene other than (A) above The cured layer and the recording layer of the ultraviolet curable resin composition of the vinegar. Formula (1) and 4H (1) where η represents an integer of 1 to 30. 322934 6 201212022 (2) - A disc having a recording layer Ultraviolet hardening tree a fat composition comprising (A) (mercapto) acrylic acid vinegar having the structure shown by the following general formula () (except for 'butane diol (meth) acrylate), (B) light 'polymerization Starting agent and (C) (meth) acrylate other than (A) above (Formula (1)

(1) 式中’η表示1至30的整數。 (3) 上述（2)中所述的光碟用紫外線硬化型樹脂組成物， 其中，上述（Α)具有一般式（丨）所示結構的（甲基）丙烯 酸酯（但是’ 了二醇（甲基）丙烯酸酯除外）為聚（四亞 甲基二醇）二（甲基）丙烯酸酯，或聚（C2或C3伸烷基 二醇-四亞甲基二醇）二（甲基）丙烯酸酯。 (4) 上述（2)中所述的光碟用紫外線硬化型樹脂組成物， 其中，前述（肀基）丙烯酸酯（Α)為具有下述一般式（2) 所示結構的（甲基）丙烯酸酯。 式（2) h^c-c{〇c^\〇-c^ch2 ° ° (2) 式中，R表示處康子或甲基，n表示2至1〇之整數。 (5)上述（2)至（4)中任—項所述的光碟用紫外線硬化型 樹脂組成物，其中，相對於組成物全體，前述（甲基） 322934 7 201212022 丙稀酸醋（A)是含有20裏95重里X。 (6) 上述（2)至（5)中任一項所述的光碟用紫外線硬化型 樹脂組成物，其中，（A)以外之（甲基）丙烯酸酯（C)為 選自由環氧基（曱基）丙烯酸酉旨（C-1)、胺基曱酸酯（曱 基）丙烯酸酯（C-2)、及前述（A)、（C-1)、及（C-2)以 外之（甲基）丙烯酸酯單體（C_3)所成群組中之至少一 種。 (7) 上述（2)至（6)中任一項所述的光碟用紫外線硬化型 樹脂組成物，其中，（A)以外之（甲基）丙烯酸酯（c)為 聚酯多元醇或聚醚多元醇’與多異氰酸酯及丙烯酸2-經基乙基酯之反應而得之胺基曱酸酯丙稀酸酯或聚 環氧乙烷（ΡΕ0)改質雙酚A型二丙烯酸酯的任何一者 或是兩者。 (8) 上述（2)至（7)中任一項所述的光碟用紫外線硬化型 樹脂組成物，其中，相對於組成物全體，前述（曱基） 丙烯酸酯（A)為20至95重量％，（B)光聚合起始劑的 含量為1至10重量％，其餘部分為（A)以外之（曱基） 丙烯酸酯（C)。 (9) 上述（2)至（8)中任-項所迷的光碟用紫外線硬化型 樹脂組成物，其中，硬化時的硬化物在25。〇之彈性率 為 0.01 至 100 MPa。 (10) -種硬化物’係將上述（2)至⑼中任―項所述的紫外 線硬化型樹脂組照射活性能量線而得者。 ⑻-種上述⑴所述光甸製造方法，其魏係在 322934 8 201212022 錄層之光碟基板上，塗布上述（2)至（9)中任一項所述 的紫外線硬化型樹脂組成物後，照射活性能量線而在 該光碟基板上’形成該樹脂組成物的硬化物層。 (12) 一種用途’係上述（2)至（9)中任一項所述的紫外線硬 化型樹脂組成物之用途，用以在具有記錄層光碟中形 成光透過層。 (13) 上述（1)所述之光碟，其係具有有機色素記錄層。 (14) 上述（2)至（9)中任一項所述的紫外線硬化型樹脂組成 物’其中’光碟為具有有機色素記錄層的光碟。 (15) 上述（2)至（9)，及（14)中任一項所述的紫外線硬化型 樹脂組成物，其中’作為上述（A)以外之（甲基）丙烯 酸醋（C)者’胺基曱酸酯（曱基）丙烯酸酯（c_2)相對於 樹脂組成物之總量，含有2〇至6〇重量％。 [發明效果] 在具有記錄層之光碟，尤其在具有有機色素記錄層之 光碟的光透光層中’使用含有本發明之具有一般式（1)所示 結構的（曱基）丙烯酸酯之紫外線硬化型樹脂組成物時，在 圮錄時及高溫高濕下的長時間使用中，可以提供有高可信 度的光碟。 【實施方式】 [實施發明之最佳形態] 本發明的紫外線硬化型樹脂組成物（以下也稱為本發 明的樹脂組成物或本發明的組成物），係含有具特定結構之 (甲基）丙烯酸酯及光聚合起始劑。 322934 9 201212022 作為在本發明之組成物中所含有的具有一般式（1)所 示結構的（甲基）丙烯酸酯（但是，丁二醇（曱基）丙烯酸酯除 外）（A)，除了丁二醇單或二（甲基）丙稀酸酯之外，可以使 用任何的具有一般式（1)所示結構的（曱基）丙烯酸酯。 以單官能或多官能的聚四亞曱基二醇（曱基）丙烯酸 酯為佳，以2官能的聚四亞甲基二醇二（曱基）丙烯酸酯為 較佳，通㊉可以列舉聚（四亞曱基二醇）二（甲基）丙晞酸酯 或聚（C2或C3伸烷基二醇-四亞曱基二醇）二（曱基）丙烯酸 酿。η通常為1至30的範圍’上述之「聚」為「2至3〇」 的範圍。以2至20左右的範圍為佳，較佳範圍為3至2〇 左右，更佳範圍是3至15左右。最佳範圍是2至1〇或是 3 至 1〇 〇 作為上述二（曱基）丙稀酸酯，可以列舉聚（四亞曱基 一醇）—（甲基）丙烯酸酯或聚（乙二醇或丙二醇-四亞曱基 二醇）二（甲基）丙烯酸酯等。 具體上可以列舉聚（乙二醇-四亞曱基二醇）二丙稀酸 酯（例如，日油股份有限公司製BLEMMER ADET系列）、聚（丙 一醇-四亞甲基二醇）二丙烯酸酯（例如，日油股份有限公司 製BLEMMER ADPT系列）、聚四亞甲基二醇二丙烯酸酯（例如 日油有限股份公司製BLEMMER ADT-250)、聚（乙二醇-四亞 甲基二醇）二曱基丙烯酸酯（例如，日油股份有限公司製 BLEMMER PDET系列）、聚（丙二醇-四亞甲基二醇）二甲基丙 稀酸S旨（例如，日油股份有限公司製BLEMMER PDPT系列）、 聚四亞曱基二醇二曱基丙烯酸酯（例如日油股份有限公司 10 322934 201212022 製 BLEMMER PDT-650 系列）等。 上述的一（曱基）丙稀酸酯中，以聚四亞曱基二醇一 ·(甲基）丙烯酸酯為佳’更理想為具有一般式（2)所示結 ·(甲基）丙烯酸酯為特佳。 13 的(1) where 'η represents an integer of 1 to 30. (3) The ultraviolet curable resin composition for optical discs according to the above (2), wherein the (meth) acrylate having the structure represented by the general formula (丨) (but the diol (a) (except acrylate) is poly(tetramethylene glycol) di(meth)acrylate, or poly(C2 or C3 alkylene glycol-tetramethylene glycol) di(meth)acrylate . (4) The ultraviolet curable resin composition for optical discs according to the above (2), wherein the (meth) acrylate (fluorene) is a (meth)acrylic acid having a structure represented by the following general formula (2) ester. Formula (2) h^c-c{〇c^\〇-c^ch2 ° ° (2) where R represents a thiophene or a methyl group, and n represents an integer of 2 to 1 。. (5) The ultraviolet curable resin composition for optical discs according to any one of the above (2), wherein the (meth) 322934 7 201212022 acrylic acid vinegar (A) is the same as the entire composition. It contains 20 miles of 95 miles. The ultraviolet curable resin composition for optical disks according to any one of the above-mentioned (2), wherein the (meth)acrylate (C) other than (A) is selected from the group consisting of epoxy groups ( Alkyl acrylate (C-1), an amino phthalate acrylate (C-2), and the foregoing (A), (C-1), and (C-2) ( At least one of the group consisting of methyl acrylate monomers (C_3). The ultraviolet curable resin composition for optical disks according to any one of the above-mentioned (2), wherein the (meth)acrylate (c) other than (A) is a polyester polyol or a poly Any of the amine phthalate acrylate or polyethylene oxide (ΡΕ0) modified bisphenol A diacrylate obtained by the reaction of an ether polyol with a polyisocyanate and a 2-ethylidene acrylate. One or both. The ultraviolet curable resin composition for optical disks according to any one of the above-mentioned (2), wherein the (mercapto) acrylate (A) is 20 to 95 by weight based on the entire composition. %, (B) The photopolymerization initiator is contained in an amount of from 1 to 10% by weight, and the balance is (fluorenyl) acrylate (C) other than (A). (9) The ultraviolet curable resin composition for optical discs according to any one of the above items (2) to (8), wherein the hardened material at the time of curing is 25. The elastic modulus of 〇 is 0.01 to 100 MPa. (10) The cured product is obtained by irradiating the ultraviolet curable resin group according to any one of the above items (2) to (9) with an active energy ray. (8) The method of producing the genus of the above-mentioned (1), wherein the UV-curable resin composition according to any one of the above (2) to (9) is applied to the optical disk substrate of the 322934 8 201212022 recording layer, The active energy ray is irradiated to form a cured layer of the resin composition on the optical disk substrate. (12) Use of the ultraviolet-curable resin composition according to any one of the above (2) to (9), wherein a light-transmitting layer is formed in a recording-receiving optical disk. (13) The optical disc according to (1) above, which has an organic dye recording layer. (14) The ultraviolet curable resin composition according to any one of the above (2) to (9) wherein the optical disc is an optical disc having an organic dye recording layer. (15) The ultraviolet curable resin composition according to any one of the above (2), wherein the '(meth)acrylic acid (C) other than the above (A)' The amino phthalate (decyl) acrylate (c_2) contains 2 to 6 重量% by weight based on the total amount of the resin composition. [Effect of the Invention] In the optical transmissive layer having the recording layer, particularly in the light transmissive layer of the optical disc having the organic dye recording layer, the ultraviolet ray containing the (fluorenyl) acrylate having the structure of the general formula (1) of the present invention is used. In the case of a hardened resin composition, a high-confidence optical disc can be provided during long-term use at the time of recording and high temperature and high humidity. [Embodiment of the Invention] The ultraviolet curable resin composition of the present invention (hereinafter also referred to as the resin composition of the present invention or the composition of the present invention) contains a specific structure (methyl). Acrylate and photopolymerization initiator. 322934 9 201212022 (meth)acrylate (except for butanediol (mercapto) acrylate) (A) which is contained in the composition of the present invention and has a structure represented by the general formula (1), except for butyl In addition to the diol mono- or di(meth) acrylate, any (fluorenyl) acrylate having the structure represented by the general formula (1) can be used. Preferably, a monofunctional or polyfunctional polytetradecylene glycol (mercapto) acrylate is used, and a bifunctional polytetramethylene glycol bis(indenyl) acrylate is preferred. (tetradecyl diol) di(methyl)propionate or poly(C2 or C3 alkylene glycol-tetradecyl diol) bis(indenyl) acrylic acid. η is usually in the range of 1 to 30. The above "poly" is in the range of "2 to 3". The range is preferably from 2 to 20, preferably from about 3 to about 2 Torr, and more preferably from about 3 to about 15. The optimum range is 2 to 1 Torr or 3 to 1 Å as the above bis(indenyl) acrylate, and poly(tetradecyl allyl)-(meth) acrylate or poly(ethylene) can be cited. Alcohol or propylene glycol-tetradecyl diol) di(meth) acrylate or the like. Specifically, poly(ethylene glycol-tetradecyl diol) diacrylate (for example, BLEMMER ADET series manufactured by Nippon Oil Co., Ltd.) and poly(propanol-tetramethylene glycol) can be cited. Acrylate (for example, BLEMMER ADPT series manufactured by Nippon Oil Co., Ltd.), polytetramethylene glycol diacrylate (for example, BLEMMER ADT-250 manufactured by Nippon Oil Co., Ltd.), poly(ethylene glycol-tetramethylene) Glycol) dimercapto acrylate (for example, BLEMMER PDET series manufactured by Nippon Oil Co., Ltd.), poly(propylene glycol-tetramethylene glycol) dimethyl acrylate acid (for example, manufactured by Nippon Oil Co., Ltd.) BLEMMER PDPT series), polytetradecyl diol dimercapto acrylate (for example, the Japanese oil company 10 322934 201212022 system BLEMMER PDT-650 series). Among the above-mentioned (indenyl) acrylates, polytetradecyl diol-(meth) acrylate is preferred, and it is more desirable to have a knot (meth) acrylate represented by the general formula (2). Ester is especially good. 13 of

RR

R (2) (式中’ R表示氫原子或曱基，η表示2至10之整數 具有一般式（2)所示結構的（甲基）丙烯酸酯是藉由聚） 四亞曱基二醇，與（曱基）丙烯酸的脫水酯化及應，與低'級 烷基丙烯酸酯的酯交換反應，使用丙烯酸氣化物的脫氣及 應而可以製造。作為市售化合物者，例如可以取得，二反 式（2)中，R為氫原子、η = 3的化合物之日油股份有阳二 司製BLEMMER ADT-250或共榮化學股份有限公司製q & acrylate PTMGA-250，一般式（2)中，R 為氫原子、n =ht 的化合物之新中村化學股份有限公司製服酯a_PTMg、M9 (A)成分於紫外線硬化型樹脂組成物中的含量通〜^ 1〇至95重量％，而以2〇至95重量％為佳，較佳是2〇 i為 重量％，更佳是40至80重量％，最佳是50至80重量％。δ〇 重量％則不能辅助色素的體積變化，記錄信錄特^未 才日標之抖動（jitter)值（％)會變差。 、的 作為在本發明組成物中所含的光聚合起始劑（B)，並與 特別限制，例如可以列舉：i一經基環己基苯基綱（的腦以 184;汽巴特別化學公司製）、2一羥基_2_甲基_[4_(1_甲基乙 322934 11 201212022 婦基）苯基]丙醇寡聚物（ONE · Rifined)、l~[4-(2 -經基乙 氧基）-苯基]-2-經基-2-甲基-1-丙烧一1一_( irgacure 2959 ;汽巴特別化學公司製）、2 -羥基-1-{4-[4- (2 -經基 -2-曱基-丙酿基）-苯甲基]-苯基}-2-甲基-丙燒[-酮 (Irgacure 127 ;汽巴特別化學公司製）、2,2-二甲氧基-2- 苯基乙醯苯（Irgacure651;汽巴特別化學公司製）、2_經基 -2 -曱基-1-苯基丙烷-1-酮（DAR0CUR 117 3 ;汽巴特別化學公 司製）、2-曱基-1-[4_(曱硫基）苯基]-2-(N-嗎啉基）丙烷-i_ 酮（Irgacure 907 ;汽巴特別化學公司製）、2-苯曱基-2- 一曱基胺基_1_(4-(N-嗎琳基）苯基）-丁院酉同、2一氯售啼 酮、2, 4 -二曱基嗟領酮、2, 4 -二異丙基嗟嘲酮、異丙基嗟 噸酮、2, 4, 6-三甲基苯曱醯基二苯基膦氧化物、雙（2, 4, 6_ 三曱基苯曱醯基）苯基膦氧化物、雙（2, 6 -二曱氧基苯曱醯 基）-2, 4,4 -三曱基戊基膦氧化物等。 本發明的紫外線硬化型樹脂組成物中，此等（B)成分， 可以1種或以任意比率混合2種以上而使用。（B)成分的紫 外線硬化型樹脂組成物中之含量通常是〇. 5至20重量％， 而以1至10重量％為佳。 又，也可以將可成為光聚合起始助劑之胺類等與上述 的光聚合起始劑併用。作為可以使用之胺類等可以列舉 如：安息香酸2-二甲基胺基乙基酯、二甲基胺基乙醯苯、 對-二甲基胺基安息香酸乙基酯、或對-二甲基胺基安息香 酸異戊基醋等。使用該胺類等之光聚合起始助劑時，於本 發明的接著用樹脂組成物中的含量通常是0.005至5重量 12 322934 201212022 %’而以0·01至3重量％為佳。 #為在本發明的樹月旨細成物中所含有的（Α)以外之 (甲基）丙稀酸醋⑹，可以使用有1個以上（曱基）丙稀職久 的（甲基>丙稀仏°又’在本發明中（甲基）丙稀酸酉旨是於 曱基丙稀=或丙烯_旨之意，其之種類並無特別限定。 理心者疋（C-1)環氧基（甲基）丙稀酸酷及/或（c_2) 胺基曱仏（曱基）兩烯酸_，更進一步，可以使用（C_3 基）丙狀s日單體（前述（A)成分、（⑼成分、.2)成分以 外之（曱基）丙烯酸酯）等。 本發明中使用的環氧基（曱基）丙稀酸醋（C-1)，係具 有硬化性的提升或硬化物的硬度級化速度提升之機能。 又j本發明中，作為環氧基（曱基）丙烯酸酯者，只要為由 裱氧丙基醚型環氧化合物，與（曱基）丙烯酸反應而得的住 何者皆可使用。為了得到該環氧基（曱基）丙烯酸酯而可以 使用的理想環氧丙基醚型環氧化合物，可以列舉：雙驗A 或其之環氧烷化物加成體的二環氧丙基醚、雙酚F或其之 環氧烷化物加成體的二環氧丙基醚、氫化雙酚A或其之學 氧烧化物加成體的二環氧丙基驗、致化雙盼F或其之壤氣 烷化物加成體的二環氧丙基醚、乙二醇二環氧丙基醚、内 一醇二環氧丙基喊、新戍一醇一壞氧丙基峻、丁二醇二壤 氧丙基醚、己二醇二環氧丙基醚、環己烷二甲醇二環氣内 基醚、聚丙二醇二環氧丙基醚等。 環氧基（甲基）丙烯酸酯係將此等之環氧丙基醚型環 氧基化合物，與（曱基）丙烯酸’例如，藉由下述條件反應 322934 13 201212022 而得。 相對於環氧丙基醚型環氧化合物的環氧基1當量，（曱 基）丙烯酸以0. 9至1· 5莫耳，較佳是以〇. 95至1. 1莫耳 的比率反應。反應溫度是以80至120°C為佳，反應時間是 在10至35小時左右》為了促進反應，例如以使用三苯基 膦、TAP、三乙醇胺、氣化四乙基銨等觸媒為宜。又，反應 中，也可以使用作為用以防止聚合的聚合禁止劑，例如， 對曱氧基酚、甲基氫醌等。 本發明中’作為環氧基（曱基）丙稀酸醋（C_ 1 )，係藉 由雙酚A型的環氧化合物而得，以雙酚A型環氧基（曱基） 丙烯酸酯為更佳。作為雙酚A型的環氧化合物，可以列舉： 上述雙酚A或其之環氧烷化合物加成體的二環氧丙基醚、 氫化雙酚A或其之環氧烷化合物加成體的二環氧丙基醚 等。 本發明中，環氧基（甲基）丙烯酸酯（C-1)的分子量以 5〇〇至10000為佳。 本發明中使用的胺基曱酸酯（曱基）丙烯酸酯（C-2)， 係具^整本㈣⑽脂喊物之減與調整硬化物中之 彈〖生=以及在該樹脂組成物的硬化層作為光透過層使用 寺提升機械特性（相反的，減少偏斜等）之機能，提升在 光碟中的記錄信號特性。 胺基甲酸黯（甲基）丙烯酸醋係藉由將多元醇、聚異氰 酸S曰及羥基(甲基)丙烯酸酯化合物反應 而可得。 更’、體的，係藉由使多元醇與多異氰酸醋反應，在所 14 322934 201212022 得之胺基f酸酯寡聚物， 應而可以得到。 』基(甲基)丙烯酸醋化合物反 作為多7G醇者，例如，可以列舉下述之多元醇。 ⑴新戊n甲基戊二醇、乙二醇、丙二醇、 1 一’4:丁二醇、16_己二醇、三羥甲基丙烷、季戊四醇、 ^經甲基三環癸燒、雙-[羥基甲基]-環己烧等脂肪族 f讀，而以碳數2至1G脂肪族多元醇為佳。 (11)藉由上述⑴所述脂肪族多元醇中的—種，與多元酸之 反應而得的聚酯多醇。 又’作為上述多元酸者，例如可以列舉：琥拍酸、隣 苯二甲酸、六氫隣苯二甲酸酐、間苯二甲酸、已二酸、壬 二酸、四氫苯二甲酸酐等。 (ill)藉由上述之多元醇與£ _己内酯反應而得之己内酯 醇。 (IV) 聚碳酸酯多元醇。例如藉由丨，6_己烷二醇等多元醇與 碳酸一苯酯的反應而得之聚碳酸酯二醇等。 (V) 聚醚多元醇。例如：聚乙二醇、聚丙二醇、或聚四亞 曱基二醇等聚C2至C4伸烷基二醇、環氧乙烷改質雙 酚A等。 上述之中，作為多元醇，以聚醚多元醇或聚酯多元醇 為佳。此等的平均分子量是以2〇〇至8〇〇〇左右為佳以 200至3000左右為較佳，更佳是3〇〇至18〇〇左右，最佳 是400至1500左右’更佳是聚C2至C4伸烷基二醇。 同時，從相溶性提高之觀點而言，聚醚多元醇為特佳。 15 322934 201212022 在胺基曱酸酯（曱基）丙烯酸酯（C-2)之合成中，作為 所使用的多異氰酸酯（有機多異氰酸酯），以二異氰酸醋為 佳，例如’可以列舉：異佛爾酮二異氰酸酯、六亞曱基二 異氰酸酯、伸曱苯基二異氰酸酯、伸二甲苯基二異氰酸酯、 二苯基曱烷-4,4’-二異氰酸酯或二環戊基二異氰酸酯等。 其中，又以異佛爾酮二異氰酸酯、伸曱笨基二異氰酸酯為 更佳。 在胺基曱酸酯（曱基）丙烯酸酯（C-2)之合成中，作為 所使用的經基（曱基）丙烯酸醋化合物，例如可列舉經基乙 基（曱基）丙稀酸酯、經基丙基（曱基）丙埽酸酯、經基丁基 (甲基）丙烯酸酯、二羥曱基環己基單（甲基）丙烯酸酯等羥 基C2至C8脂肪族烴基（甲基）丙烯酸酯，經基己内酯（曱基） 丙烯酸酯等。其中，理想之烴基（甲基）丙烯酸酯是羥基C2 至C8脂肪族煙基（甲基）丙烯酸g旨，較佳是經基[2至匸4 脂肪族烴（甲基）丙烯酸酯，最佳是羥基乙基（甲基）丙烯酸 酯。 則述反應，例如是依以下方式而進行。即，在多元醇 中其之每1當量羥基與有機多異氰酸酯的異氰酸酯基較佳 是成為1. 1至2. 〇當量的方式混合，反應溫度以在7〇至 9〇°C中反應為佳，合成胺基f酸酯寡聚物。其次，胺基甲 酸酯寡聚物的每1當量異氰酸酯基，以與羥基（甲基）丙烯 酸酯化合物的羥基較佳成為丨至15當量的方式混合，在 70至90 C反應可以得到目的之胺基甲酸酯（甲基）丙烯酸 酯。 16 322934 201212022 作為理想之胺基曱酸酯（甲基）丙烯酸酯（C-2)，係使 用聚酯多元醇或聚醚多元醇作為多元醇，使用上述二異氰 酸醋作為有機多異氰酸酯，使用作為上述較佳羥基（曱基） 丙婦酸s旨列舉之羥基（甲基）丙烯酸酯，最佳是2-羥基乙基 (曱基）丙烯酸酯作為羥基（甲基）丙烯酸酯，而可以得到胺 基曱酸醋（曱基）丙烯酸酯，較佳可以列舉，由聚酯多元醇 或聚趟多元醇’二異氰酸酯及2-羥基乙基（曱基）丙烯酸酯 的3者而得到之胺基甲酸醋（曱基）丙烯酸酯（c-2a)。 又’上述中，由使用分子量200至3000左右（以分子 量300至1800為佳）之聚酯多元醇或聚醚多元醇所得到之 胺基甲酸酯（甲基）丙烯酸酯也是理想的胺基甲酸酯（甲基） 丙烯酸酯（C-2)之一種。 又’依情形之不同，以300至1800左右的聚C2至C6 伸炫*基二醇’較佳是分子量300至1800左右的C3至C5 伸烧基二醇、異佛爾酮二異氰酸酯及羥基C2至C4(曱基） 丙晞酸酯反應’所得到之胺基曱酸酯（甲基）丙烯酸酯也是 理想之胺基曱酸酯（甲基）丙烯酸酯（C-2)的一種。 又’ UX-0937 :聚醚系胺基曱酸酯丙烯酸酯（日本化藥 (股）製）等也可能由市場取得。胺基曱酸酯（甲基）丙烯酸酯 (C-2)的分子量通常是4〇〇至ι〇〇〇〇左右，而以4〇〇至2000 左右為佳，以400至1〇〇〇左右為更佳。 本發明的樹脂組成物中，含有胺基曱酸酯（曱基）丙烯 酸酯（C-2)之態樣是理想態樣之一，作為（c)成分，可以含 有單獨之胺基曱酸酯（甲基）丙烯酸酯（c_2)之態樣，也可以 17 322934 201212022 是與其他之（c)成分併用的態樣。 本發明的樹脂組成物中，含有胺基曱酸醋（甲基）丙豨 ㈣（C-2)之情形’相對於樹脂組成物的總量，其之含量比 〇%還大，通常是8〇重量％以下，而以7Q重量以下為佳， 以60重量％以下為更佳。例如，作為⑹成分，在含有胺基 曱酉夂=(曱基）丙烯酸醋（c_2)之態樣中，相對於樹脂組成物 的總里’係以20至80重量％左右為佳，以20至70重量％ 。以下為較佳，更佳是2〇至60重量％，最佳是20至5〇重量 %。此等之含量中作為（C)成分之胺基甲酸S旨（甲基）丙稀酸 醋（C-2)可以單獨含有，又’亦可以與（C-1)成分或（C-3) 成分併用。 作為（甲基）丙烯酸酯單體（C-3)，可以使用除了前述 之（A)、（C-1)成分、（c-2)成分以外的任何（甲基）丙烯酸酯 單體。例如可以列舉下述之單官能或多官能（而以2至6 吕月匕為佳）（甲基）丙稀酸酉旨。 例如’作為有1個（甲基）丙烯醯基之（甲基）丙烯酸酯 單體，可以列舉：環氧乙烷改質酚（曱基）丙烯酸酯、（曱基） 丙烯酸異辛基酯、（甲基）丙烯酸異戊基酯、（甲基）丙稀酸 月桂基酯、（甲基）丙烯酸異癸基酯、硬脂醯基（甲基）丙烯 酸酯、（甲基）丙烯酸十六烷基酯、（甲基）丙烯酸異肉豆謹 基酯、（甲基）丙烯酸十三烷基酯、甲氧基三丙二醇（甲基） 丙烯酸酯、己内酯改質羥基乙基（甲基）丙烯酸酯、己内酯 改質羥基丁基（曱基）丙烯酸酯、（曱基）丙烯酸苄基酯、（甲 基）丙烯酸四氫呋喃甲基酯、（甲基）丙烯酸嗎啉基酯、苯基 18 322934 201212022 環氧丙基（甲基）丙烯酸酯、2-羥丙基（曱基）丙烯酸酯、乙 氧基二乙二醇（曱基）丙烯酸酯、（曱基）丙烯酸三環癸烷 酯、聚丙二醇（曱基）丙烯酸酯、聚環氧丙烷改質（曱基）丙 烯酸壬基苯基酯、（曱基）丙烯酸異冰片基酯、（曱基）丙烯 酸二環戊二烯氧乙基酯、丙烯酸二環戊烯基酯（例如，曰立 化成工業（股）公司製FANCRYLFA-511A)、丙烯酸二環戊稀 氧基乙基酯（例如’日立化成工業（股）公司製FANCRYL FA-512A)、曱基丙烯酸二環戊烯氧基酯（例如，日立化成工 業（股）公司製FANCRYL FA-512M)、丙烯酸二環戊基酯（例 如，日立化成工業（股）公司製FANCRYL FA-513A)、甲基丙 烯酸二環戊基g旨（例如，日立化成工業（股）公司製FANCRYL FA-513M)、丙烯酸卜金剛烷基酯（例如，出光興產（股）公 司製Adamantate AA)、丙稀酸2-甲基-2-金剛烷基酯（例 如’出光興產（股）公司製AdamantateMA)、丙稀酸2-乙基 -2-金剛烧基醋（例如，出光興產（股）公司製Adamantate EA)、曱基丙烯酸1-金剛烷基酯（例如，出光興產（股）公 司製Adamantate AM)、環氧乙烷改質苯氧基化磷酸（曱基） 丙烯酸酯、環氧乙烷改質丁氧基化磷酸（甲基）丙烯酸酯、 及環氧乙烧改質辛氧基化雜（曱基）丙稀酸醋等。 有1個（甲基）内烯醯基之（甲基）丙烯酸醋單體，係有 提升以本發㈣|外線硬化型樹脂纟讀物作為光透過層所 开7成之光碟的機械雜（相反的，抑制歪斜*正等）之機能。 在此從在§己錄時及高溫多濕下賦予優異的信號記錄 特f生之觀點而。，以使用環氧乙燒改質紛（甲基）丙婦酸醋、 19 322934 201212022 (曱基）丙烯酸異辛基醋、（甲基）丙稀酸異戊基g旨、（笮基） 丙烯酸月桂基酯、（甲基）丙烯酸異癸基酯、硬脂醯基（曱基） 丙稀酸酯、（甲基）丙浠酸十六晚基酯、（曱基）丙稀酸異肉 豆蔻基酯、（曱基）丙烯酸十三烧基酯、曱氧基三丙二醇（曱 基）丙烯酸酯、己内酯改質羥基乙基（甲基）丙烯酸酯、己内 酯改質經基丁基（曱基）丙稀酸酯、聚丙二醇（甲基）丙烯酸 醋、聚環氧丙烷改質（曱基）丙烯酸壬基苯基酯、丙烯酸二 環戊烯氧基乙基酯為特佳。 作為（C-3)成分的有2個（曱基）丙烯醯基之（甲基）丙 烯酸酯單體，可以列舉：己内酯改質羥基三甲基乙酸新戊 一醇一（甲基）丙稀酸S旨、2-乙基-2-丁基-丙二醇二（甲基） 丙烯酸酯、1，9-壬二醇二（甲基）丙烯酸酯、丨，1〇_癸二醇二 (曱基）丙烯酸酯、環己烷-1,4-二甲醇二（甲基）丙烯酸酯、 環己烧-1，3-—曱醇二（曱基）丙烯酸g旨、三環癸燒二經曱美 二（曱基）丙烯酸酯（例如，曰本化藥（股）公司製， R-684，三環癸烷二羥甲基二丙烯酸酯等）、二卩等烷二醇二 (曱基）丙烯酸酯（例如，日本化藥（股）公司製，KAYARAD R-604，二噚烷二醇二丙烯酸酯等）、新戊二醇二（甲基）丙 稀酸酯、二環戊基二（曱基）丙烯酸酯、1，6-己燒二醇二（甲 基）丙烯酸酯、環氧乙烷改質丨，6-己烷二醇二（甲基）丙烯 ㈣、聚環氧丙院改質ι’6_己烧二醇二（甲基）丙烯酸酿、 新戊二醇二（曱基）丙烯酸酯、環氧烷化物改質新戊二醇一 (甲基）丙烯酸酯、羥基三甲基乙酸新戊二醇二（甲基）丙烯 酸酯、聚乙二醇二（甲基）丙烯酸酯、聚丙二醇二（曱基）丙 322934 20 201212022 烯酸酯、環氧烷改質雙酚A型二（甲基）丙烯酸酯、及環氧 乙烧改質填酸二（曱基）丙烯酸酯等。 在此’從在記錄時及高溫多濕下賦予優異信號記錄特 性之觀點而言，以使用己内酯改質經基三甲基乙酸新戊二 醇二（甲基）丙烯酸酯、2-乙基-2-丁基-丙二醇二（曱基）丙 烯酸酯、1，9-壬二醇二（曱基）丙烯酸酯、l 1〇一癸 二醇二（甲 基）丙烯酸酯、環氧乙烷改質1，6_己烷二醇二（曱基）丙烯 酸酯、聚環氧丙烷改質1，6—己烷二醇二（曱基）丙烯酸酯、 %氧烧改質新戊二醇二（甲基）丙烯酸酯、聚乙二醇二（曱基） 丙烯酸酯、聚丙二醇二（甲基）丙烯酸酯、環氧烷改質雙酚 A型二（曱基）丙稀酸酯為佳，以己内酯改質經基三甲基乙 酸新戊二醇二（甲基）丙烯酸酯、或（聚）C2至C4環氧烧改 貝C6至C15烧二醇二（曱基）丙稀酸酯為更佳。依情形之不 同，以（聚）C2至C4環氧烷改質雙酚儿型二（曱基）丙烯酸 .酯為更佳。 作為（C-3)成分的有3個（甲基）丙稀醯基之（甲基）丙 烯酸酯單體，可以列舉：己内醋改質參（丙稀醢氧基乙基） 三聚異氰酸酯、三羥甲基丙烷三（甲基）丙烯酸酯、三羥甲 基辛烷二（甲基）丙烯酸酯、三羥曱基丙烷聚乙氧基三（，基） 烯酸酯、三經甲基丙院聚丙氧基三（甲基）丙婦酸醋、三^ 甲基丙燒聚乙氧基聚丙氧基三（甲基）丙婦酸醋、參[(甲基） 丙稀醯氧基乙基]二聚異氰酸醋、季戊四醇三（甲基）丙稀酸 醋、環氧乙烧改質三㈣基丙烧三（甲基）丙埽酸醋、環氧 丙烧改質二輕甲基丙烧三（甲基）丙稀酸酿等。 322934 21 201212022 在此，從在S己錄時及咼溫多濕下賦予優異的信號記錄 特性之觀點而言，以使用己内酯改質參（丙烯醯氧基乙基） 三聚異氰酸酯為特佳。 作為（C-3)成分的有4個（曱基）丙烯醯基之（曱基）丙 烯酸醋單體，可以列舉：季戊四醇聚乙氧基四（甲基）丙稀 酸酯、季戊四醇聚丙氧基四（曱基）丙烯酸酯、季戊四醇四 (曱基）丙烯酸酯、二（三羥曱基）丙烷四（曱基）丙烯酸酯、 二季戊四醇四（曱基）丙烯酸酯等。 作為（C-3)成分的有5個（甲基）丙烯醯基之（甲基）丙 烯酸酯單體，可以列舉：二季戊四醇五（甲基）丙稀酸醋等。 作為（C-3)成分的有6個（甲基）丙烯醯基之（甲基）丙 烯酸酯單體，可以列舉：己内酯改質二季戊四醇六（甲基） 丙烯酸酯、二季戊四醇六（曱基）丙烯酸酯等。又，在本明 中可以使用的（曱基）丙烯酸酯單體，也可以是有7個以上 的（曱基）丙埽醯基之多官能者。 在此，從在記錄時及高溫多濕下賦予優異的信號記錄 特性之觀點而言，以使用己内酯改質二季戊四醇六（甲基） 丙烯酸酯為佳。 本發明的紫外線硬化型樹脂組成物中，此等（c)成分 係可以使用1種或將2種以上以任意比率混合者成分 於紫外線硬化型樹脂組成物中之含量（相對於樹脂組成物 的總量）通常是4至80重量％ ’以1〇至5〇重量％為佳，以 10至40重量％為更佳。又，相對於樹脂組成物的總量，胺 基甲酸酯（甲基）丙烯酸酯（C-2)是使用15至35重量％，較 322934 22 201212022 佳使用20至30重量％範圍時，前述環氧基（甲基）丙烯酸酯 (C-1)或前述（甲基）丙烯酸酯單體（C-3)成分雖可以併用， 但作為（C)成分，單獨使用（C-2)成分之態樣也是理想態樣 . 之一種。又，不含（C-2)成分，或該含量相對於樹脂組成物 的總量，在25重量％以下時，作為（C)成分，使用前述環氧 基（曱基）丙烯酸酯（C-1)或前述（曱基）丙烯酸酯單體（C-3) 之態樣也是理想者。 不含（C-2)成分，或考慮其之含量定為如上述少時， 相對於樹脂組成物的總量，（C )成分之含量是3 0至8 0重量 %，而以40至70重量％為佳。 又’使用（C-1)與（C-2)作為（C)成分是之情形，通常 (C-1)及/或（C-2)相對於（C)成分100重量份為5至50重 量份’而以10至30重量份程度為佳，其餘部分是（C-3) 成分。又’作為作為（C)成分使用（C-3)之情形的一種理想 態樣者’可以列舉，相對於（C)成分1〇〇重量份，（C-3)成 分是含有10至80重量份，而以20至80重量份為佳，較 佳是25至75重量份左右的比率態樣。 本發明中較佳態樣之一，相對於樹脂組成物之總量， 作為（C)成分，（c-2)成分含量定為比〇還大，且為80重量 %以下，而以20至70重量％為佳，更佳是20至60重量％， (C-1)成分或（c-3)成分（較佳是（C-3)成分）含有〇至4〇重 量％ ’（C)成分之總量為比〇還大，且為8〇重量％以下，而 以20至70重量％為佳，更佳是2〇至6〇重量％。又，此時 之理想態樣之一’相對於（C)成分之總量，（C-2)成分之含 23 322934 201212022 量為40至100重量％左右，而以60至100重量％為佳 佳是80至1〇〇重量％之情形。 更 又’相對於樹脂組成物之總量，（A)成分及（c)成分 總量，以80至99重量％為佳，而以90至99重量％為更^圭 在本發明的光碟用紫外線硬化型樹脂組成物中，因應 需要也可以添加疏基酴（mercaptophenol)等之防鱗劑、於 氧化劑、有機溶劑、矽烷偶合劑、聚合禁止劑、塗平劑、 防帶電劑、表面潤滑劑、螢光增白劑、光安定劑（例如，受 阻胺化合物）、填充劑等。 受阻胺化合物的具體例可以列舉如：1，2, 2, 6, 6-五甲 基-4-哌啶基醇、2, 2, 6, 6-四甲基-4-哌啶基醇、（甲基）丙 稀西夂1’2，2，6，6 -五曱基-4_fl底咬基醋（ADEKA(股）製， LA-82)等。 藉由添加受阻胺化合物或/及Μ基酚等，因可以提升 耐久性等而有可以達成理想效果之情形。 相對於樹脂組成物之總量，此等添加劑’通常可以使 用0至20重量％，而以〇至1〇重量％之範圍為佳。 又，本發明中，前述（Α)成分與（C)成分，較佳係藉由 使用胺基曱酸酯（曱基）丙烯酸酯（C-2)，或前述（曱基）丙烯 酸酯單體（C-3)之任何一種，或是併用兩者’也可以使本發 明樹脂組成物的硬化物之彈性率，例如本發明中理想之彈 性率（25¾ )是〇 〇1至1〇〇 MPa’而以〇. 至MPa為佳， 更佳是0. 01至2〇 MPa之範圍。使該硬化物層在25 C的彈 性率調整在此範圍時，在界面層上有該硬化物層的光碟， 322934 24 201212022 同時具有優異之耐久性及記錄特性。 在此情形中作為較佳之胺基甲酸酯（曱基）丙烯酸酯 (C-2) ’可以列舉前述理想之胺基曱酸酯（曱基）丙烯酸酯， 更佳是作為前述（C-2a)列舉之胺基曱酸酯（甲基）丙烯酸 酯。 又’作為理想之前述（曱基）丙烯酸酯單體（c_3)，係 可以列舉：（甲基）丙烯酸C5至C18烷基酯、碳數7至18 伸烧基二醇二（曱基）丙浠酸酯、聚（C2至C4伸烧基二醇） 二（甲基）丙烯酸酯（同時聚合是以2至2〇左右為佳）、聚（C2 至C3環氧烷）改質雙酚a型二（甲基）丙烯酸酯（同時聚合是 以2至20左右為佳）等，而以環氧乙烷5至丨5莫耳改質（最 好是10莫耳改質）雙酚A型二（曱基）丙烯酸酯為佳。 例示本發明之樹脂組成物的理想態樣如下所述。 (I) 含有（A)具有上述一般式（丨）所示結構之（甲基）丙烯酸 酯的聚（四亞甲基二醇）二（甲基）丙烯酸酯或聚（C2或 C3伸烷基二醇-四亞甲基二醇）二（甲基）丙烯酸酯，（B) 光聚合起始劑，及（A)以外之（甲基）丙烯酸酯（c)，且 具有有機色素記錄層作為記錄層之光碟用紫外線硬化 型樹脂組成物。 (II) 上述（I)所記載之紫外線硬化型樹脂組成物，其争，上 述（A)成分為聚（四亞甲基二醇）二（甲基）丙烯酸酯。 (III) 上述（II)所記載之紫外線硬化型樹脂組成物，其中， 上述（A)成分中’「聚」為2至30的範圍。 (IV) 上述（in)所記載之紫外線硬化型樹脂組成物，其中， 322934 25 201212022 「聚」為2至ι〇的範圍。 〇〇上述⑴υ所記載之紫外線硬化型樹脂組成物，其中， 「聚」為3至1〇的範圍。 ㈤上述⑴至（V)中任—項所記載之紫外線硬化型樹脂 、、且成物其中，上述之（C)成分為選自由環氧基（曱基） 丙烯I酉曰（C 1)、胺基甲酸酯（曱基）丙烯酸酯（C-2)、 及除了别述（Α)、（(Μ)、及（C-2)以外之（曱基）丙烯 酸酯單體（C-3)所成群組中之至少一項。 (VII) 上述⑴至（VI)巾任—項所記載之紫外線硬化型樹 脂組成物，其中，作為上述（C)成分，至少含有胺基 甲酸酯（甲基）丙烯酸酯（C一2)。 (VIII) 上述（VI)或（VII)中所記載之紫外線硬化型樹脂 組成物，其中，胺基曱酸酯（甲基）丙烯酸酯（C-2)的 分子量為400至loooo。 (IX) 上述（VI)至（VIII)中任一項所記載之紫外線硬化型 樹脂組成物’其中，胺基甲酸酯（甲基）丙烯酸酯（c_2) 為藉由多元醇、多異氰酸酯及羥基（甲基）丙烯酸酯化 合物的反應而得之胺基曱酸酯（曱基）丙烯酸酯。 (X) 上述（IX)所記載之紫外線硬化型樹脂組成物，其中， 多元醇為聚醋多元醇或聚趟多元醇。 (XI) 上述（X)所記載之紫外線硬化型樹脂組成物，其中， 多元醇為聚醚多元醇。 (XII) 上述（X)或（XI)所記載之紫外線硬化型樹脂組成物， 其中’聚酯多元醇或聚醚多元醇的分子量為200至 26 322934 201212022 3000 〇 (XIII) 上述（X)至（XII)任一項所記載之紫外線硬化型樹 脂组成物，其中，聚酯多元醇為聚C2至C6伸烷基二 醇。 (XIV) 上述（IX)至（XIII)中任一項所記載之紫外線硬化型 樹脂組成物，其中，多異氰酸酯為二異氰酸酯。 (XV) 上述（IX)至（XIII)中任一項所記載之紫外線硬化型樹 脂組成物，其中，多異氰酸酯為異佛爾酮二異氰酸酯。 (XVI) 上述（IX)至（XIII)中任一項所記載之紫外線硬化型 樹脂組成物，其中，經基（甲基）丙嫦酸酯化合物為經 基乙基（甲基）丙烯酸酯。 (XVII) 上述（VI)至（XVI)中任一項所記載之紫外線硬化 型樹脂組成物，其中，（曱基）丙稀酸_單體（C_3)為 己内酯改質羥基三曱基乙酸新戊二醇二（曱基）丙烯 酸酯，或（聚）C2至C4環氧烷改質C6至C15烷基二醇 二（曱基）丙烯酸酯。 (XVIII) 上述（VI)至（XVI)中任一項所記載之紫外線硬化 型樹脂組成物，其中，（甲基）丙歸酸醋單體（C-3)為 聚C2至C4環氧烷改質雙酚A型二（甲基）丙烯酸酯。 (XIX) 上述（I)至（XVIII)中任一項所記載之紫外線硬化型 樹脂組成物，其中，相對於樹脂組成物之總量，上述 (A)成分含量為1〇至95重量％，上述（B)成分含量為1 至10重量％ ’及上述（C)成分含量為4至89重量％。 (XX) 上述（XIX)所記載之紫外線硬化型樹脂組成物’其 322934 27 201212022 中，上述（A)成分含量為2〇至8〇重量％，及上述（〇 成分含量為10至70重量％。 (XXI) 上述（XIX)所記載之紫外線硬化型樹脂組成物，其 中’上述（A)成分含量為4〇至8〇重量％，及上述（〇 成分含量為20至60重量％ ’（A)成分含量及（c)成分 含量的合計為90至99重量％。 (XXII) 上述（XXI)所記載之紫外線硬化型樹脂組成物，其 中’上述（A)成分含量為5〇至80重量％，及上述（C) 成分含量為20至50重量％。 (XXIII) 上述（I)至（XXII)中任一項所記載之紫外線硬化 型樹脂組成物’其中，相對於樹脂組成物之總量，胺 基曱酸酯（曱基）丙烯酸酯（C-2)之含量為大於0%，且 為80重量％以下。 (X XIV )上述（I)至（X X11)中任一項所記載之紫外線硬化 型樹脂組成物，其中，相對於樹脂組成物之總量，胺 基甲酸酯（甲基）丙烯酸酯（C-2)之含量為大於20重量 % ’且為60重量％以下。 (XXV) 上述（χχιν)所記載之紫外線硬化型樹脂組成物，其 中’作為（C)成分之胺基曱酸酯（曱基）丙烯酸酯（C-2)， 相對於（C)成分之總量，係含有80乃至100重量％。 (XXVI) 上述（I)至（XXV)任一項所記載之紫外線硬化型樹 脂組成物，相對於樹脂組成物之總量，其中，含有任 意之添加劑是〇至20重量％。 (XXVII) 上述（1)至（XXVI)任一項所記載之光碟用紫外線 28 322934 201212022 硬化型樹脂組成物，其中，硬化時之硬化物在25°C的 彈性率為0. 01至100 MPa。 (XXVIII) 上述（XXVII)所記載之光碟用紫外線硬化型樹 脂組成物，其中，硬化時之硬化物在25°C的彈性率為 〇. 01 至 30 MPa。 (XXIX) 上述（XXVII)所記載之光碟用紫外線硬化型樹脂 組成物，其中，硬化時之硬化物在25°C的彈性率為 〇· 01 至 20 MPa。 本發明之光碟用紫外線硬化型樹脂組成物，係將前述 各成分在常溫至8(TC中混合溶解而可以得到，因應需要也 可以將夾雜物藉由過濾等操作而去除。考慮到塗布性，本 發明之接著用樹脂組成物在25°C之黏度，係以在30至2000 mPa · s之範圍，而以成為50至2000 mPa · s為佳，以8〇 至1600 mPa.s為更佳’以適當調節成分之配合比等為宜。 尤其’將光透過層做成本發明之樹脂組成物的硬化物層之 一層時，以在500至1600 mPa左右之黏度為佳。 在此，由於黏度太高時薄層之形成變困難，故因應形 成之膜厚而適當調整黏度為宜。 本發明之光碟用紫外線硬化型樹脂組成物，可以適合 作為藍光光碟等雷射入射側之光透過層用塗布劑使用。具 體上塗布之樹脂膜厚為1至，而以1〇至1〇〇以瓜為 佳之任何方法’例如，以旋塗法、卯法、輥塗法、網版印 刷法等將本發明之樹脂組成物塗布在光碟基板。較佳是塗 布在具有有機色素記錄層與在其上所形成之界面層的光碟 322934 29 201212022 基板之該界面層。塗布後，由單側或是兩面照射紫外至近 紫外（波長200至400 nm附近）之光線後而硬化。照射量是 以約 50 至 1500 mJ/cm2 為佳，以 1〇〇 至 1000 mj/cm2左 右為特佳。在藉由照射紫外乃至近紫外之光線而硬化時， 只要有照射紫外乃至近紫外之光線的燈就可以而不必考慮 光源。例如可以列舉：低壓、高壓、或超高壓水銀燈、金 屬鹵素燈、（脈衝）氤燈、或無電極燈等。 本發明之紫外線硬化型樹脂組成物 ，光透過層為由在 記錄層或在其上所形成的界面層上所形成的第一樹脂層， 與由第一樹脂層看到之與記錄層或界面層側是在相對面上 所形成的第二樹脂層所構成的情形中，可以在前述第一樹 脂層中適合使用。 在此之情形中，前述第一樹脂層的厚度通常是1μιη 至5〇//m ’而以5#m至40/ζιη為佳，更佳是1〇,至30 // m ° 又’則述第二樹脂層的厚度通常是5〇 至100" m， 而以6〇//m至95_為佳，更佳是70/zm至90,。 二光透過層（保護層）為由二層構成時，作為光透過層 (保±護層）之形成方法，具體上是作為第一之樹脂層（本發明 之樹脂組成物層）塗布的樹脂膜厚 ，例如是做成1 至50 /z m，以 1 5 Qn l 主川為佳’以1〇至30# m為更佳的任意方 法例如，以旋塗法、2P法、輥塗法、網版印刷法等將組 成物塗布在光碟基板上。塗布後，由單側或是兩面照射紫 外乃至近紫外（波長200至400 nm附近）之光線後而硬化。 30 322934 201212022 照射量是以50至1500 mJ/cm2為佳’特佳是loo至loo〇mj /cm2左右。第一之樹脂層硬化後’作為第二之樹脂層的膜 厚，例如是做成50ym至lOOym ’以70至ΙΟΟμπι為佳， 以70至90 μ m為更佳的任意方法，例如，以旋塗法、2Ρ 法、輥塗法、網版印刷法等’將與本發明之樹脂組成物不 同之光透過層用樹脂組成物塗布在光碟基板上。塗布後， 由單侧或是兩面照射紫外乃至近紫外（波長200至400 nm 附近）之光線後而硬化。照射量是以50至1500 mJ/cm2為 佳，特佳是100至1000mJ/cm2左右》進一步，在藉由紫 外乃至近紫外之光線照射而硬化，只要有照射紫外乃至近 系外之光線的燈即可而不必考慮光源。例如可以列舉：低 壓、高壓、或超高壓水銀燈、金屬_素燈、（脈衝）氙燈、 或無電極燈等。 又’本發明之樹脂組成物，係可以用本發明之樹脂組 成物的硬化物層一層形成光透過層。該硬化物層之形成， 也可以使臈厚做成50/zm至1〇〇//in，以70至100/zm為佳， 若除了不形成第二層的論點，可以根據在上述本發明之樹 脂組成物的第一層之形成來進行。 以本發明之樹脂組成物的硬化物所形成的光透過層， 於400 nm附近之光透過度優異，適合作為藍光光碟用之光 透過層者。 如上述所得到的較佳之本發明的光碟，至少是具有： 導溝（pre~r〇ove)的碳酸酯等塑膠支撐基板、在該導溝上形 成的反射層、在該反射層上形成的記錄層{無機或有機記錄 31 322934 201212022 層、以有機色素（通常偶氮色素等）記錄層為佳丨、在該記錄 層上形成的界面層（介電體層）、在該界面層上形成的，有 本發明樹脂組成物之硬化物層（光透過層）的光碟。本發明 樹脂組成物之硬化物層（光透過層），依情形，可以是只以 此的單一層，也可以形成光透過層，又，在本發明樹脂組 成物之硬化物層上，進一步’也可以有其他的光透過層用 的樹脂組成物之硬化物層。後者之情形，光透過層變成是 由本發明樹脂組成物之硬化物層與其他之光透過層用的樹 脂組成物之硬化物層的2層所形成。 本發明的光碟中，在記錄餍{以含有機色素（通常偶氮 色素等）記錄層}上所形成的界面層上，直接形成本發明樹 脂組成物之硬化物層時，可以達成本發明的效果。 尤其’有前述理想之態樣（I)至（XXIX)中記載旳樹脂 組成物之硬化物層的光碟’尤其，具有有機色素記錄層的 藍光光碟，耐久試驗前的抖動值，或，耐久試驗後的抖動 值’都顯示有非常優異之值’記錄時及在高溫高濕下之長 時間使用中都有很高的可信賴性。 正如該業者所詳知，界面層是由含有Zrl等金屬原子 的複合物等含金屬原子之無機化合物所形成的層。 又，本發明之光碟中的記錄層，係指藉由雷射光可能 寫入的記錄層之意思。 本發明之光碟中是在基板的記錄資訊面設置有記錄 層。該記錄層是可以適當利用以往習知的作為光記錄媒體 用的記錄層材料。例如可列舉：色素、不定形半導體、部 32 322934 201212022 分氮化膜、部分氡化膜（無機膜）等。 本發明之光記錄媒體也可以有複數記錄層，此時，各 別之層也可以用相同材料形成，也可以用其他之材料任意 組合而形成。如此在每個各層可以變化透過率等之光學性 質。 在記錄層使用之不定形半導體材料的具體例，例如可 列舉：SbTe 系、GeTe 系、GeSbTe 系、inSbTe 系、AgSbTe 系、AglnSbTe 系、GeSb 系、GeSbSn 系、InGeSbTe 系、 InGeSbSnTe系等材料。其中，為了提高結晶化速度，以使 用Sb為主成分的組成物為佳。同時，此等不定形半導體材 料可以使用單獨1種’也可以併用將2種以上以任意之組 合及比率。 作為部分氮化膜、部分氧化膜的具體例，例如可列 舉：BiGeN、SnNbN等部分氮化膜，Te0x、BiF0x等之部分 氧化膜。 實施例 以下’根據實施例更具體的說明本發明，但本發明並 不受到此等實施例的任何限制。 實施例1至3、及比較例1及2 實施例1至3、比較例1及2之紫外線硬化型樹脂組 成物是在表1所示之組成’將各成分藉由均勻混合而調製。 33 322934 201212022 [表l ] 實施例1 實施例2 實施例3 比較例1 比較例2 成分(A) ADT-250 65 A-PTMG-65 75 55 TPGDA 65 FA-124AS 65 成分(B) IRGACURE-184 4 4 4 4 4 成分(C) UA-1 30 40 30 30 BPE-10 20 其他成分 LA-82 0.5 0.5 0.5 0.5 0.5 PMP 0.5 0.5 0.5 0.5 0.5 耐久性試驗前之抖動 值(%) 6.2 6.4 6.2 11.8 12.5 判定 〇 〇 〇 X X 耐久性試驗後之抖動 值(%) 8.5 8.8 8.0 14.0 15.1 判定 〇 〇 〇 X X 彈性率(MPa)25°C/lHz 100 28 17 1200 1600 同時表1中略稱所示的各成分是如下所述。 A-PTMG-65 :聚四亞曱基二醇二（曱基）丙烯酸酯（新中村化 學（股）公司製，式（2)的R為氫原子，n=9的化合物） ADT-250 ··聚四亞甲基二醇二丙烯酸酯（日油（股）公司製， 式（2)的R為氫原子，n=3的化合物） TPGDA :三丙二醇二丙烯酸酯（Sartomer公司製，式（3)的 化合物） 34 322934 201212022 〇 FA-_U-丁二醇二丙烯酸醋( 製’式(2)的R為氫原子，n ^ 成業(股)公司 B胺基甲酸醋丙稀酸醋(將聚四：： 異佛_二異氛 以莫耳比1:2: 2反庳而,日卜歸的3成分 環氧乙烷1〇莫^改旨） 工業製藥（股）公司製）&㉟二丙婦酸賴（第— ^82:甲基丙烯酸12,2,66_五甲武 化（股）公司製） 土 哌疋基酯（旭電 PMP : 4-毓基酚 藉由使賴狀本發明紫特硬㈣㈣ =或(广記載的方法製作有色素記錄層的藍光二 估了 =)二述:方法進行所得藍光光碟的記錄特 化物:= 記载。又，本發明樹脂組成物‘硬 ^ 率’町述㈤所述的方法進行，結果在前述 表1中記載。 (1)使用實施例1及2的樹脂組成物製作藍光光碟 (光透過層為由本發明之樹脂硬化物層與其他之光透過 層用樹脂組成物硬化物層2層所成的有色素記錄層之藍光 光碟） 1.在有軌距（track pitch)0. 32 um之導溝的直徑i2cm、 35 322934 201212022 厚度1· 1 mm的聚碳酸醋基板上以使銀合金成為剛nm 的膜厚方式雜，形成反射層。之後，將偶氮色素溶解 到酬四氟丙醇）溶劑中的色素溶液藉由旋塗法塗布， W 80 C乾燥30分鐘形成色素記錄層。進一步將 ZM-si〇2(莫耳比80:20)以厚度成為約15⑽方式濺鐘， 形成界面層，而製作藍光光碟基板。 2. 將藍光光碟基板在界面層成為在上面之 薄片上，以内徑達…覆蓋樣式進行圓形二;轉 (cap)處理，接著將2· 0§本發明之紫外線硬化型樹脂組 成物供給到中心部的帽罩上。 3. 調合本發明之紫外線硬化型樹脂組成物的黏度，以ι〇〇〇 rpm到150〇rpm的速度範圍旋塗4秒鐘到7秒鐘間使 各塗布膜厚成為25um方式塗布。在旋塗終了之際以氣 閃光燈照射2注料量（sh〇t)，使其硬化到表面無流動性 程度。 4. 使用高壓水銀燈’自上侧以4〇〇 mJ/cm2照射3秒鐘， 使本發明之紫外線硬化型樹脂組成物完全硬化。 5·硬化的本發明之紫外線硬化型樹脂組成物以成為在上面 方式覆蓋在旋轉薄片上，以内徑達11.5 mra覆蓋樣式進 行圓形的帽罩處理，接著將3. 0g BRD_864 (日本化藥（股） 製藍光光碟用光透過層用樹脂）供給到中心部的帽罩上。 6.以1500 rpm的速度範圍旋塗從4秒鐘到7秒鐘間，使塗 布膜厚成為75 ura方式塗布。在旋塗終了之際以氙閃光 燈照射2注料量（sh〇t)，使其硬化到表面無流動性程度。 36 322934 201212022 7.使用高壓水銀燈，自上侧以伽照射3秒鐘， 使BRD-864完全硬化’可以製作本發明之藍光光碟。 (ii)使用實施例3的樹脂組成物製作藍光光碟 (光透過層為由本發明之樹脂硬化物層單獨而成的有色 素記錄層之藍光光碟） 1·在有軌距0.32 um之導溝的直徑12⑽、厚度丨^咖的 聚碳酸酯基板上以使銀合金濺鍍成為1〇〇⑽的膜厚方 式，开>成反射層。之後，將偶氮色素溶解到TFp(四氟丙 醇）溶劑中的色素溶液藉由旋塗法塗布，以8(rc乾燥30 分鐘形成有機色素記錄層。進一步，將Zns_si02(莫耳 比80. 20)以厚度成約為15 nm方式賤鑛，形成界面層， 而製作藍光光碟基板。 2. 將藍光光碟基板在界面層成為上面之方式覆蓋在旋轉薄 片上，以内徑達U. 5 mm覆蓋樣式進行圓形的帽罩處 理，接著將2.0 g本發明之紫外線硬化型樹脂組成物供 給到中心部的帽罩上。 3. ; &本發明之紫外線硬化型樹脂組成物的黏度，以 rpm到130〇rpm的速度範圍旋塗4秒鐘到7秒鐘間，使 各塗布膜之硬化後膜厚度成為1〇〇 um方式塗布。在旋 塗終了之際以氙閃光燈照射2注料量（sh〇t)，使其硬化 到表面無流動性程度。 4. 使用高壓水銀燈，自上侧以4〇〇 mJ//cm2照射3秒鐘， 使本發明之紫外線硬化型樹脂組成物完全硬化，製作本 發明之藍光光碟。 37 322934 201212022 (i i i)藍光光碟的耐久性試驗前後的記錄信號特性 將本發明之光碟在8(TC、85% RH環境下’放置250 小時。使用藍光光碟資訊信號測定裝置（帕路斯科技工業 (Pulstec)公司製ODU-1000)，在線速度4. 92 m/s，再生 電力0.30mW’記錄電力6.〇mw，T連續記錄（IT長=0.08um) 記錄，測定耐久性試驗前後的藍光光碟之記錄信號特性（抖 動值），以下述基準評估。抖動值是光碟的電氣信號的一 種’此數值愈高’表示藍光光碟之信號資訊差，變成10% 以上時資料讀寫就變困難。 抖動值之評估 〇· · ·抖動值未達10. 0% X · · ·抖動值10. 0%以上。 (i v)本發明之樹脂硬化物層的彈性率之測定 彈性率是根據JIS K 7244-5依動的黏彈性測定法測 定。即’以本發明之樹脂組成物使硬化後的厚度成為1 mm 的方式，形成塗膜，使用Fusion燈D脈衝，於1J/cm2之 累積光量使其硬化後，製作長度5 cm、寬度1 cm、厚度 lmm大小的樣品片，藉由SII奈米科技公司製黏彈性測定 裝置DMS 6100進行測定。測定是以彎曲模式進行，在振幅 負重10 mN，頻率1Hz，昇溫速度2°C/分鐘的條件進行在 -50°C至200°C範圍旳測定。 (v)藍光（400 nm附近的光）之透過度的測定 使用上述實施例1至3所得到的樹脂組成物，作成硬 化後之膜厚為lOOum的光透過度測定用的各個樣品，使用 322934 38 201212022 分光光度計（U-3310 ’日立高科技（股）公司製），測定在各 樣品中於405 rim的光之吸光度，求取光的透過度。彳壬彳可樣^ 品中的光透過度都在85%以上。 由表1之結果’含有具一般式（1)所示結構之（曱基） 丙稀酸S旨的實施例1及2的本發明之樹脂組成物，可以得 到相關之耐久性試驗前後良好記錄信號的特性。另—方 面，含有式（3)化合物的比較例丨及含有式（2)的R為氫原 子，n= 1之化合物的比較例2是無法得到耐久性試驗前後 良好的記錄信號特性。 [產業上的可利用性] 本發明之賴組成物作為光碟的光透過制的樹脂 組成物使用時，由於所得的硬化物層在藍光的_nm附近 的光透過性優’並且，所得光碟的記錄信號特性優，财久 性也優異，故本發明之樹脂組成物及本發明之光碟，尤其 含有有機色素記錄層之光碟，在藍光光 非常有用。 【圖式簡單說明】 無 【主要元件符號說明】 無 322934 39R (2) (wherein R represents a hydrogen atom or a fluorenyl group, and η represents an integer of 2 to 10, and the (meth) acrylate having a structure represented by the general formula (2) is obtained by poly) tetradecylene diol Desalting and dehydration with (fluorenyl)acrylic acid, and transesterification with a low-grade alkyl acrylate, can be produced by degassing and constituting acrylic acid vapor. As a commercially available compound, for example, it is possible to obtain a compound of the formula (2) in which R is a hydrogen atom and η = 3, and the company has a system of BLEMMER ADT-250 or a subsidiary of Kyoei Chemical Co., Ltd. & acrylate PTMGA-250, the content of the uniform ester a_PTMg and M9 (A) in the ultraviolet curable resin composition of the compound of Nakamura Chemical Co., Ltd., in which R is a hydrogen atom and n = ht in general formula (2) It is preferably from 2 to 95% by weight, more preferably from 2 to 95% by weight, more preferably 2% by weight, still more preferably from 40 to 80% by weight, most preferably from 50 to 80% by weight. The δ 重量 weight % cannot assist the volume change of the pigment, and the jitter value (%) of the recorded mark will be deteriorated. The photopolymerization initiator (B) contained in the composition of the present invention is particularly limited, and, for example, i: a brain having a cyclohexylphenyl group (184); Ciba Specialty Chemical Co., Ltd. ), 2-hydroxy-2_methyl_[4_(1_methylethyl 322934 11 201212022 phenyl) phenyl]propanol oligomer (ONE · Rifined), l~[4-(2 - via base B) Oxy)-phenyl]-2-yl-2-methyl-1-propanone-1_(irgacure 2959; manufactured by Ciba Specialty Chemicals Co., Ltd.), 2-hydroxy-1-{4-[4- (2 - mercapto-2-indenyl-propyl)-benzyl]-phenyl}-2-methyl-propan [-ketone (Irgacure 127; manufactured by Ciba Specialty Chemicals Co., Ltd.), 2, 2 -dimethoxy-2-phenylethyl benzene (Irgacure 651; manufactured by Ciba Specialty Chemicals Co., Ltd.), 2_transyl-2-mercapto-1-phenylpropan-1-one (DAR0CUR 117 3 ; Ciba 2-Mercapto-1-[4-(indolyl)phenyl]-2-(N-morpholinyl)propane-i-ketone (Irgacure 907; manufactured by Ciba Specialty Chemicals Co., Ltd.), 2 -Benzyl-2-indenylamino-1_(4-(N-morphinyl)phenyl)-butyl dimethoate, 2-chloro fluorenone, 2,4-dimercaptopurone, 2 , 4 -diisopropyl sneer Ketone, isopropyl xanthone, 2,4,6-trimethylphenylnonyldiphenylphosphine oxide, bis(2,4,6-trimercaptophenyl)phenylphosphine oxide, Bis(2,6-dimethoxyphenylphenyl)-2,4,4-tridecylpentylphosphine oxide or the like. In the ultraviolet curable resin composition of the present invention, these (B) components may be used singly or in combination of two or more kinds in any ratio. The content of the ultraviolet curable resin composition of the component (B) is usually 〇.  It is preferably 5 to 20% by weight, and preferably 1 to 10% by weight. Further, an amine or the like which can be used as a photopolymerization initiation aid may be used in combination with the above photopolymerization initiator. Examples of the amines and the like which can be used include benzoic acid 2-dimethylaminoethyl ester, dimethylaminoethyl benzene benzene, p-dimethylamino benzoic acid ethyl ester, or p-bis. Methylamino benzoic acid isoamyl vinegar and the like. When the photopolymerization initiation aid of the amine or the like is used, the content in the resin composition for subsequent use of the present invention is usually 0. 005 to 5 weight 12 322934 201212022 %' is preferably 0. 01 to 3% by weight. # ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( (丙 仏 又 又 又 又 又 又 又 又 又 又 又 又 又 又 ( ( ( ( ( ( ( ( ( ( ( ( ( C C C C C C C C C C C C C C C C C C Ethoxy (meth) acrylic acid and/or (c 2) amino fluorene (fluorenyl) enoate _, further, (C _ 3 yl) propylene s day monomer (the aforementioned (A ) ingredients, ((9) ingredients, 2) (meth) acrylate other than the component. The epoxy (fluorenyl) acrylate (C-1) used in the present invention is a function of improving the hardness of the hardened or cured product. Further, in the present invention, the epoxy group (mercapto) acrylate may be used as long as it is a oxime propyl ether type epoxy compound and reacted with (meth)acrylic acid. An ideal epoxypropyl ether type epoxy compound which can be used for obtaining the epoxy (indenyl) acrylate, and a di-epoxy propyl ether of double-spectrum A or an alkylene oxide adduct thereof a diepoxypropyl ether of bisphenol F or an alkylene oxide adduct thereof, a diepoxypropyl group of hydrogenated bisphenol A or an oxyalkylated adduct thereof, or a dimerization F or Di-epoxypropyl ether, ethylene glycol diepoxypropyl ether, internal alcohol epoxilyl group, neodecyl alcohol, aoxypropyl sulphide, succinyl Alcohol propyl propyl ether, hexanediol diepoxypropyl ether, cyclohexane dimethanol bicyclo gas internal ether, polypropylene glycol diepoxypropyl ether and the like. The epoxy group (meth) acrylate is obtained by reacting these epoxy propyl ether type epoxy compounds with (meth)acrylic acid, for example, by the following conditions: 322934 13 201212022. With respect to 1 equivalent of the epoxy group of the epoxy propyl ether type epoxy compound, (meth)acrylic acid is 0.  9 to 1.5 moles, preferably 〇.  95 to 1.  1 mole ratio reaction. The reaction temperature is preferably 80 to 120 ° C, and the reaction time is about 10 to 35 hours. In order to promote the reaction, for example, a catalyst such as triphenylphosphine, TAP, triethanolamine or vaporized tetraethylammonium is preferably used. . Further, as the polymerization inhibiting agent for preventing polymerization, for example, p-nonyloxyphenol, methylhydroquinone or the like may be used in the reaction. In the present invention, 'as an epoxy group (mercapto) acrylic acid vinegar (C-1), which is obtained by using a bisphenol A type epoxy compound, and a bisphenol A type epoxy group (fluorenyl) acrylate is used. Better. Examples of the epoxy compound of the bisphenol A type include diglycidyl ether of the above bisphenol A or an alkylene oxide compound addition product thereof, hydrogenated bisphenol A or an alkylene oxide compound adduct thereof. Di-epoxypropyl ether and the like. In the present invention, the epoxy group (meth) acrylate (C-1) preferably has a molecular weight of from 5 Å to 10,000. The amino decanoate (C-2) acrylate (C-2) used in the present invention is provided with the entire body of the (4) (10) lipid shattering substance and the elastic substance in the hardened material, and the resin composition. The hardened layer functions as a light-transmitting layer to enhance the mechanical characteristics of the temple (instead, to reduce skew, etc.), and to improve the characteristics of the recorded signal in the optical disc. The ruthenium methacrylate (meth) acrylate is obtained by reacting a polyol, a polyisocyanate S oxime and a hydroxy (meth) acrylate compound. Further, it is obtained by reacting a polyhydric alcohol with polyisocyanate in an amine-based f-ester oligomer obtained at 14 322 934 201212022. The group of the (meth)acrylic acid vinegar compound may be, for example, the following polyols. (1) neopentyl n-methyl pentanediol, ethylene glycol, propylene glycol, 1 - 4: butanediol, 16-hexanediol, trimethylolpropane, pentaerythritol, ^ methyl tricyclic terpine, double - An aliphatic f-reading such as [hydroxymethyl]-cyclohexene is preferred, and a carbon number of 2 to 1 G aliphatic polyol is preferred. (11) A polyester polyol obtained by reacting a polyhydric acid with a compound of the above aliphatic polyol (1). Further, examples of the polybasic acid include succinic acid, phthalic acid, hexahydrophthalic anhydride, isophthalic acid, adipic acid, sebacic acid, and tetrahydrophthalic anhydride. (ill) A caprolactone obtained by reacting the above polyol with £_caprolactone. (IV) Polycarbonate polyol. For example, a polycarbonate diol obtained by reacting a polyhydric alcohol such as hydrazine or 6-hexane diol with monophenyl carbonate. (V) Polyether polyol. For example, a poly C2 to C4 alkylene glycol such as polyethylene glycol, polypropylene glycol or polytetramethylene glycol, ethylene oxide modified bisphenol A or the like. Among the above, as the polyhydric alcohol, a polyether polyol or a polyester polyol is preferred. The average molecular weight of these is preferably from about 2 to about 8 inches, preferably from about 200 to about 3,000, more preferably from about 3 to about 18, and most preferably from about 400 to about 1,500. Poly C2 to C4 alkylene glycol. At the same time, polyether polyols are particularly preferred from the viewpoint of improvement in compatibility. 15 322934 201212022 In the synthesis of amino phthalate acrylate (C-2), as the polyisocyanate (organic polyisocyanate) to be used, diisocyanate is preferred, for example, Isophorone diisocyanate, hexamethylene diisocyanate, phenylene diisocyanate, xylylene diisocyanate, diphenyldecane-4,4'-diisocyanate or dicyclopentyl diisocyanate. Among them, isophorone diisocyanate and stilbene diisocyanate are more preferred. In the synthesis of the amino decanoate (C-2) acrylate, as the trans group (fluorenyl) acrylate vinegar compound used, for example, a phenylethyl (mercapto) acrylate is exemplified. Hydroxy C2 to C8 aliphatic hydrocarbon group (methyl) such as propyl (mercapto) propionate, butyl butyl (meth) acrylate, dihydroxy decyl cyclohexyl mono (meth) acrylate Acrylate, hexyl lactone (fluorenyl) acrylate, and the like. Among them, the preferred hydrocarbyl (meth) acrylate is a hydroxyl group C2 to C8 aliphatic nicotine (meth) acrylate, preferably a trans group [2 to 匸4 aliphatic hydrocarbon (meth) acrylate, preferably It is a hydroxyethyl (meth) acrylate. The reaction is, for example, carried out in the following manner. Namely, it is preferable that the isocyanate group per one equivalent of the hydroxyl group and the organic polyisocyanate in the polyol is 1.  1 to 2.  The mixture is mixed in a ruthenium equivalent manner, and the reaction temperature is preferably carried out at 7 Torr to 9 ° C to synthesize an amino-based f-ester oligomer. Next, the isocyanate group per one equivalent of the urethane oligomer is preferably mixed with the hydroxyl group of the hydroxy (meth) acrylate compound to be 15 equivalents, and the reaction can be obtained at 70 to 90 C. Urethane (meth) acrylate. 16 322934 201212022 As an ideal amino phthalate (meth) acrylate (C-2), a polyester polyol or a polyether polyol is used as the polyol, and the above diisocyanate is used as the organic polyisocyanate. The hydroxy (meth) acrylate as the above-mentioned preferred hydroxy(indenyl)glycolic acid s, preferably 2-hydroxyethyl (fluorenyl) acrylate, is used as the hydroxy (meth) acrylate. The amine decanoic acid acrylate (mercapto) acrylate is obtained, and preferably an amine obtained from a polyester polyol or a polyfluorene polyol 'diisocyanate and 2-hydroxyethyl (decyl) acrylate. Base carboxylic acid (mercapto) acrylate (c-2a). Further, in the above, a urethane (meth) acrylate obtained by using a polyester polyol or a polyether polyol having a molecular weight of about 200 to 3,000 (preferably having a molecular weight of 300 to 1800) is also an ideal amine group. A type of formate (meth) acrylate (C-2). Further, 'according to the case, a poly C2 to C6 of about 300 to 1800 is preferably a C3 to C5 alkyl diol, isophorone diisocyanate and a hydroxyl group having a molecular weight of about 300 to 1800. The amino phthalate (meth) acrylate obtained by the C2 to C4 (fluorenyl) propionate reaction is also one of the desirable amino phthalate (meth) acrylates (C-2). Further, UX-0937: polyether-based phthalic acid ester acrylate (manufactured by Nippon Kayaku Co., Ltd.) may also be obtained from the market. The molecular weight of the amino phthalate (meth) acrylate (C-2) is usually from about 4 〇〇〇〇 to about 10 μm, preferably from about 4 〇〇 to about 2,000, and from about 400 to about 1 〇〇〇. For better. In the resin composition of the present invention, the aspect containing the amino phthalate acrylate (C-2) is one of desirable embodiments, and as the component (c), a separate amino phthalate may be contained. The aspect of (meth) acrylate (c_2) can also be used in combination with other components (c) in 17 322934 201212022. In the resin composition of the present invention, the case of containing the amino phthalic acid (meth) propyl hydrazine (tetra) (C-2) is larger than the total amount of the resin composition, and the content thereof is larger than 〇%, usually 8 The weight % is less than or equal to 7% by weight, more preferably 60% by weight or less. For example, as the component (6), in the aspect containing the amino group 曱酉夂=(fluorenyl)acrylic acid vinegar (c_2), the total amount of the resin composition is preferably about 20 to 80% by weight, preferably 20%. Up to 70% by weight. The following is preferred, more preferably 2 to 60% by weight, most preferably 20 to 5% by weight. Among these contents, the amino acid formic acid S as the component (C) may be contained alone (C-2), and may also be combined with the component (C-1) or (C-3). Use the ingredients together. As the (meth) acrylate monomer (C-3), any (meth) acrylate monomer other than the above components (A), (C-1) and (c-2) can be used. For example, the following monofunctional or polyfunctional (except for 2 to 6 lyophilic) (meth) acrylic acid is exemplified. For example, 'as a (meth) acrylate monomer having one (meth) acrylonitrile group, an oxirane-modified phenol (mercapto) acrylate, (mercapto) isopropyl acrylate, Isoamyl (meth)acrylate, lauryl (meth)acrylate, isodecyl (meth)acrylate, stearyl (meth) acrylate, hexadecane (meth) acrylate Base ester, iso-myristyl (meth)acrylate, tridecyl (meth)acrylate, methoxytripropylene glycol (meth) acrylate, caprolactone modified hydroxyethyl (methyl) Acrylate, caprolactone modified hydroxybutyl (mercapto) acrylate, (benzyl) benzyl acrylate, (meth) acrylate tetrahydrofuran methyl ester, (meth) acrylate morpholinyl ester, phenyl 18 322934 201212022 Epoxypropyl (meth) acrylate, 2-hydroxypropyl (decyl) acrylate, ethoxy diethylene glycol (mercapto) acrylate, tricyclodecyl (meth) acrylate, Polypropylene glycol (mercapto) acrylate, polypropylene oxide modified (mercapto) propylene Nonylphenyl ester, isobornyl (mercapto) acrylate, dicyclopentadienyl oxyethyl (meth) acrylate, dicyclopentenyl acrylate (for example, manufactured by 曰立化成股份有限公司) FANCRYLFA-511A), dicyclopentaoxyethyl acrylate (for example, FANCRYL FA-512A manufactured by Hitachi Chemical Co., Ltd.), dicyclopentenyloxy acrylate (for example, Hitachi Chemical Industry Co., Ltd.) ) FANCRYL FA-512M), dicyclopentyl acrylate (for example, FANCRYL FA-513A manufactured by Hitachi Chemical Co., Ltd.), and dicyclopentyl methacrylate (for example, Hitachi Chemical Co., Ltd.) Company-made FANCRYL FA-513M), adamantyl acrylate (for example, Adamantate AA manufactured by Idemitsu Kosan Co., Ltd.), 2-methyl-2-adamantyl acrylate (for example, 'Immediate production ( (company) AdamantateMA), 2-ethyl-2-carboacetic acid acrylate (for example, Adamantate EA from Idemitsu Kosan Co., Ltd.), 1-adamantyl methacrylate (for example, Shinkosen Production (stock) company Adamantate AM), ethylene oxide modified phenoxy Phosphate (Yue-yl) acrylate, ethylene oxide modified butoxylated phosphoric acid (meth) acrylate, and ethylene oxide modified burn octyloxylated heteroaryl (Yue-yl) acrylic vinegar. a (meth)acrylic acid vinegar monomer having one (meth)-endene-based fluorenyl group, which is a mechanical impurity which enhances the optical disk of the hair-transmitting layer of the present invention (4) The function of suppressing skew *positivity). Here, from the point of view of § recording and high temperature and humidity, excellent signal recording is given. To use Ethylene Oxide to modify (methyl) propylene vinegar, 19 322934 201212022 (fluorenyl) isopropyl acrylate, (methyl) isopropyl isoamyl, (mercapto) acrylic Lauryl ester, isodecyl (meth)acrylate, stearyl (mercapto) acrylate, hexadecyl (meth)propionate, heterodymite (mercapto) acrylate Base ester, tridecyl (decyl) acrylate, decyl tripropylene glycol (decyl) acrylate, caprolactone modified hydroxyethyl (meth) acrylate, caprolactone modified butyl butyl (Mercapto) acrylate, polypropylene glycol (meth) acrylate, polypropylene oxide modified (fluorenyl) decyl phenyl acrylate, dicyclopentenyl oxyethyl acrylate is particularly preferred. The (meth) acrylate monomer having two (fluorenyl) acrylonitrile groups as the component (C-3) may, for example, be a caprolactone-modified hydroxytrimethylacetate pentaerythritol-(methyl) group. Acetic acid S, 2-ethyl-2-butyl-propylene glycol di(meth) acrylate, 1,9-nonanediol di(meth) acrylate, hydrazine, 1 〇 癸 diol diol ( Mercapto) acrylate, cyclohexane-1,4-dimethanol di(meth)acrylate, cyclohexene-1,3-decanol bis(indenyl)acrylic acid g, tricyclic terpene Indomethacin (for example, sakamoto Chemical Co., Ltd., R-684, tricyclodecane dimethylol diacrylate, etc.), dioxane, etc. Acrylate (for example, manufactured by Nippon Kayaku Co., Ltd., KAYARAD R-604, dioxanediol diacrylate, etc.), neopentyl glycol di(methyl) acrylate, dicyclopentyl (fluorenyl) acrylate, 1,6-hexane diol di(meth) acrylate, ethylene oxide modified oxime, 6-hexane diol di(meth) propylene (tetra), polyepoxy Modified ι'6_hexane diol di(methyl) Acrylic brewing, neopentyl glycol bis(indenyl) acrylate, alkylene oxide modified neopentyl glycol mono(meth) acrylate, hydroxytrimethyl acetic acid neopentyl glycol di(meth) acrylate, Polyethylene glycol di(meth)acrylate, polypropylene glycol bis(indenyl)propene 322934 20 201212022 enoate, alkylene oxide modified bisphenol A type di(meth) acrylate, and epoxy epoxide It is filled with acid bis(indenyl) acrylate and the like. Here, from the viewpoint of imparting excellent signal recording characteristics at the time of recording and high temperature and humidity, the use of caprolactone is modified by transmethyltrimethylacetate neopentyl glycol di(meth)acrylate, 2-B. Benzyl-2-propanediol bis(indenyl) acrylate, 1,9-nonanediol bis(indenyl) acrylate, l-nonyl diol di(meth) acrylate, ethylene oxide Modified 1,6-hexanediol di(indenyl)acrylate, polypropylene oxide modified 1,6-hexanediol di(indenyl)acrylate, %oxygen-modified neopentyl glycol (meth) acrylate, polyethylene glycol bis(indenyl) acrylate, polypropylene glycol di(meth) acrylate, alkylene oxide modified bisphenol A type bis(indenyl) acrylate, preferably Modified with caprolactone via trimethylglycolic acid neopentyl glycol di(meth)acrylate, or (poly)C2 to C4 epoxy modified shell C6 to C15 burnt diol di(indenyl)propionic acid The ester is better. Depending on the situation, the (poly) C2 to C4 alkylene oxide modified bisphenol-type bis(indenyl) acrylic acid. The ester is better. As the (C-3) component, there are three (meth) acrylonitrile-based (meth) acrylate monomers, and examples thereof include caprolactam modified ginseng (acryloxyethyl) trimeric isocyanate. , trimethylolpropane tri(meth) acrylate, trimethylol octane di(meth) acrylate, trishydroxypropyl propane polyethoxy tris, methacrylate丙院聚丙氧三(methyl)propyl vinegar vinegar, trimethopropanol polyethoxylated polypropoxy tris(methyl) propyl acetonate, ginseng [(methyl) propylene oxylate B Di]isocyanuric acid vinegar, pentaerythritol tris(meth)acrylic acid vinegar, epoxy ethene modified tris(tetra)ylpropanol tris(methyl)propionate vinegar, epoxidized propylene modified two light armor Acetyl tris(meth)acrylic acid and the like. 322934 21 201212022 Here, from the viewpoint of imparting excellent signal recording characteristics at the time of recording and temperature and humidity, the use of caprolactone modified styrene (propylene oxyethyl) trimer isocyanate good. Examples of the (C-3) component having four (fluorenyl) acrylonitrile-based (fluorenyl) acryl acrylate monomers include pentaerythritol polyethoxytetrakis (meth) acrylate and pentaerythritol polypropoxy group. Tetrakis(yl) acrylate, pentaerythritol tetrakis(meth) acrylate, bis(trihydroxydecyl)propane tetrakis(meth) acrylate, dipentaerythritol tetrakis(meth) acrylate, and the like. Examples of the (meth)acryloyl group-containing (meth) acrylate monomer as the component (C-3) include dipentaerythritol penta(methyl) acrylate vinegar and the like. Examples of the (meth)acrylic acid ester monomer having six (meth)acrylonitrile groups as the component (C-3) include caprolactone-modified dipentaerythritol hexa(meth)acrylate and dipentaerythritol. Mercapto) acrylate and the like. Further, the (fluorenyl) acrylate monomer which can be used in the present invention may be a polyfunctional group having seven or more (fluorenyl) fluorenyl groups. Here, it is preferred to use dicaprolactam-modified dipentaerythritol hexa(meth)acrylate from the viewpoint of imparting excellent signal recording characteristics at the time of recording and high temperature and humidity. In the ultraviolet curable resin composition of the present invention, the component (c) may be used in one or two or more components in an ultraviolet curable resin composition in an arbitrary ratio (relative to the resin composition). The total amount) is usually from 4 to 80% by weight 'preferably from 1 〇 to 5 〇 by weight, more preferably from 10 to 40% by weight. Further, the urethane (meth) acrylate (C-2) is used in an amount of 15 to 35% by weight based on the total amount of the resin composition, and is preferably in the range of 20 to 30% by weight in comparison with 322934 22 201212022. The epoxy (meth) acrylate (C-1) or the (meth) acrylate monomer (C-3) component may be used in combination, but as the component (C), the component (C-2) may be used alone. The situation is also an ideal.  One of them. Further, when the component (C-2) is not contained, or the content is 25% by weight or less based on the total amount of the resin composition, the epoxy group (C-based) acrylate (C- is used as the component (C). The aspect of 1) or the aforementioned (fluorenyl) acrylate monomer (C-3) is also desirable. When the content of (C-2) is not contained, or the content thereof is determined to be as small as described above, the content of the component (C) is from 30 to 80% by weight, and from 40 to 70, relative to the total amount of the resin composition. The weight % is preferred. Further, when (C-1) and (C-2) are used as the component (C), usually (C-1) and/or (C-2) is 5 to 50 with respect to 100 parts by weight of the component (C). The parts by weight are preferably from 10 to 30 parts by weight, and the balance is (C-3). In addition, as an ideal aspect of the case where (C-3) is used as the component (C), the component (C-3) is contained in an amount of 10 to 80% by weight based on 1 part by weight of the component (C). The ratio is preferably from 20 to 80 parts by weight, preferably from about 25 to about 75 parts by weight. In one of the preferred embodiments of the present invention, as the component (C), the component (c-2) is determined to be larger than cerium, and is 80% by weight or less, and 20% or less, based on the total amount of the resin composition. 70% by weight, more preferably 20 to 60% by weight, (C-1) or (c-3) (preferably (C-3)) contains 〇 to 4% by weight '(C) The total amount of the components is larger than 〇 and is 8% by weight or less, preferably 20 to 70% by weight, more preferably 2 Å to 6% by weight. Moreover, one of the ideal aspects at this time is 'about 40 to 100% by weight with respect to the total amount of the component (C), and the amount of the component (C-2) is 23 to 322934 201212022, and preferably 60 to 100% by weight. Good is 80 to 1% by weight. Further, 'with respect to the total amount of the resin composition, the total amount of the component (A) and the component (c) is preferably from 80 to 99% by weight, and more preferably from 90 to 99% by weight, more preferably used in the optical disk of the present invention. In the ultraviolet curable resin composition, if necessary, an antiscaling agent such as mercaptophenol, an oxidizing agent, an organic solvent, a decane coupling agent, a polymerization inhibiting agent, a coating agent, an antistatic agent, and a surface lubricant may be added. , a fluorescent whitening agent, a light stabilizer (for example, a hindered amine compound), a filler, and the like. Specific examples of the hindered amine compound include, for example, 1,2,2,6,6-pentamethyl-4-piperidyl alcohol, 2,2,6,6-tetramethyl-4-piperidyl alcohol, (Methyl)propene oxime 1'2,2,6,6-pentamethylene-4_fl bottom biting vinegar (ADEKA (manufactured by ADEKA), LA-82). By adding a hindered amine compound or/nonylphenol or the like, it is possible to achieve a desired effect by improving durability and the like. These additives ' can usually be used in an amount of from 0 to 20% by weight, based on the total amount of the resin composition, and preferably from 〇 to 1% by weight. Further, in the present invention, the (Α) component and the (C) component are preferably used by using an amino phthalate acrylate (C-2) or the aforementioned (mercapto) acrylate monomer. Any one of (C-3), or both, can also make the elastic modulus of the cured product of the resin composition of the present invention, for example, the desired elastic modulus (253⁄4) in the present invention is 〇〇1 to 1〇〇MPa. 'And 〇.  It is preferably MPa, more preferably 0.  01 to 2 〇 MPa range. When the elastic layer is adjusted to have a refractive index of 25 C in this range, the cured layer of the optical layer is provided on the interface layer, and 322934 24 201212022 has excellent durability and recording characteristics. In this case, as the preferred urethane (fluorenyl) acrylate (C-2) ', the above-mentioned ideal amino phthalate (mercapto) acrylate is exemplified, and more preferably as the above (C-2a) The listed amino phthalate (meth) acrylate. Further, 'the above-mentioned (fluorenyl) acrylate monomer (c_3) is exemplified by a C5 to C18 alkyl (meth) acrylate and a C 7 to 18 alkyl diol bis(indenyl) propylene. Phthalate, poly(C2 to C4 alkyl diol) di(meth) acrylate (simultaneous polymerization is preferably about 2 to 2 Torr), poly(C2 to C3 alkylene oxide) modified bisphenol a Type di(meth)acrylate (simultaneous polymerization is preferably about 2 to 20), etc., and ethylene oxide 5 to 5 molybdenum modification (preferably 10 mole modification) bisphenol A type Di(indenyl) acrylate is preferred. The ideal aspect of exemplifying the resin composition of the present invention is as follows. (I) Poly(tetramethylene glycol) di(meth)acrylate or poly(C2 or C3 alkylene group) containing (A) (meth) acrylate having the structure represented by the above general formula (丨) a diol-tetramethylene glycol) di(meth) acrylate, (B) a photopolymerization initiator, and a (meth) acrylate (c) other than (A), and having an organic dye recording layer as The optical disk of the recording layer is made of an ultraviolet curable resin composition. (II) The ultraviolet curable resin composition according to the above (I), wherein the component (A) is poly(tetramethylene glycol) di(meth)acrylate. (III) The ultraviolet curable resin composition according to the above (II), wherein the "aggregation" in the component (A) is in the range of 2 to 30. (IV) The ultraviolet curable resin composition according to (a) above, wherein 322934 25 201212022 "poly" is in the range of 2 to ι〇. The ultraviolet curable resin composition according to the above (1), wherein "polymerization" is in the range of 3 to 1 Torr. (5) The ultraviolet curable resin according to any one of the above (1) to (V), wherein the component (C) is selected from the group consisting of epoxy group (fluorenyl) propylene I 酉曰 (C 1), Urethane (mercapto) acrylate (C-2), and (fluorenyl) acrylate monomer (C-3) other than (Α), ((Μ), and (C-2) (A) The ultraviolet curable resin composition according to any one of the above (1), wherein the component (C) contains at least a urethane. (M) acrylate (C-2). (VIII) The ultraviolet curable resin composition described in the above (VI) or (VII), wherein the amino phthalate (meth) acrylate (C- (2) The ultraviolet curable resin composition described in any one of the above (VI) to (VIII), wherein the urethane (meth) acrylate (c_2) It is an amino phthalate acrylate obtained by the reaction of a polyhydric alcohol, a polyisocyanate, and a hydroxy (meth) acrylate compound. (X) The above (IX) The ultraviolet curable resin composition according to the above aspect (X), wherein the polyhydric alcohol is a polyether polyol, wherein the polyhydric alcohol is a polyether polyol. (XII) The ultraviolet curable resin composition according to (X) or (XI) above, wherein the molecular weight of the 'polyester polyol or polyether polyol is 200 to 26 322934 201212022 3000 〇 (XIII) (X) above The ultraviolet curable resin composition according to any one of (X), wherein the polyester polyol is a poly C2 to C6 alkylene glycol. (XIV) Any one of the above (IX) to (XIII) The ultraviolet curable resin composition according to any one of the above-mentioned (IX) to (XIII), wherein the polyisocyanate is isophor, the polyisocyanate is a diisocyanate. The ultraviolet curable resin composition according to any one of the above (1) to (XIII), wherein the trans (meth)propionate compound is a transethyl group (methyl group) )Acrylate (XVII) The ultraviolet curable resin composition according to any one of (VI), wherein the (mercapto)acrylic acid-monomer (C_3) is a caprolactone-modified hydroxytrimercaptoacetic acid neopentyl glycol. Di(indenyl) acrylate, or (poly) C2 to C4 alkylene oxide modified C6 to C15 alkyl diol bis(indenyl) acrylate. (XVIII) Any of the above (VI) to (XVI) The ultraviolet curable resin composition described above, wherein the (meth) acrylonitrile monomer (C-3) is a poly C2 to C4 alkylene oxide modified bisphenol A type di(meth)acrylate. (XIX) The ultraviolet curable resin composition according to any one of the above (1), wherein the content of the component (A) is from 1% to 95% by weight based on the total amount of the resin composition. The content of the component (B) is from 1 to 10% by weight ' and the content of the component (C) is from 4 to 89% by weight. (XX) The ultraviolet curable resin composition described in the above (XIX), in the 322934 27 201212022, the content of the component (A) is 2% to 8% by weight, and the above (the content of the bismuth component is 10 to 70% by weight) (XXI) The ultraviolet curable resin composition according to the above (XIX), wherein the content of the above (A) component is 4 〇 to 8 〇 by weight, and the above (the content of the 〇 component is 20 to 60% by weight '(A (XII) The ultraviolet curable resin composition of the above (XXI), wherein the content of the above (A) component is 5 Å to 80% by weight. And the content of the component (C) is from 20 to 50% by weight. (XXIII) The ultraviolet curable resin composition of any one of the above (I) to (XXII), wherein the total amount of the composition is relative to the resin composition The content of the amino phthalate acrylate (C-2) is more than 0% and is 80% by weight or less. (X XIV ) as described in any one of the above (I) to (X X11) An ultraviolet curable resin composition in which an amine group is added relative to the total amount of the resin composition The content of the ester (meth) acrylate (C-2) is more than 20% by weight ' and is 60% by weight or less. (XXV) The ultraviolet curable resin composition described in the above (χχιν), wherein 'as (C) The amino phthalate acrylate (C-2) of the component contains 80% to 100% by weight based on the total amount of the component (C). (XXVI) Any of the above (I) to (XXV) The ultraviolet curable resin composition according to the above-mentioned item, wherein the additive is contained in an amount of up to 20% by weight based on the total amount of the resin composition. (XXVII) Any one of the above (1) to (XXVI) The optical disc is made of ultraviolet light 28 322934 201212022 hardened resin composition, wherein the hardening property of the cured product at 25 ° C is 0.  01 to 100 MPa. (XXVIII) The ultraviolet curable resin composition for optical discs according to the above (XXVII), wherein the hardening property at the time of hardening is at 25 ° C.  01 to 30 MPa. (XXIX) The ultraviolet curable resin composition for optical discs according to the above (XXVII), wherein the cured product at the time of curing has an elastic modulus at 25 ° C of 〇· 01 to 20 MPa. The ultraviolet curable resin composition for an optical disk of the present invention can be obtained by mixing and dissolving the above components at room temperature to 8 (TC), and if necessary, the inclusions can be removed by filtration or the like. The viscosity of the resin composition of the present invention at 25 ° C is in the range of 30 to 2000 mPa · s, preferably 50 to 2000 mPa · s, and 8 to 1600 mPa. s is more preferable, and it is preferable to appropriately adjust the mixing ratio of the components and the like. In particular, when the light-transmitting layer is used as a layer of the cured layer of the resin composition of the invention, it is preferably a viscosity of about 500 to 1600 mPa. Here, since the formation of the thin layer becomes difficult when the viscosity is too high, it is preferable to appropriately adjust the viscosity in accordance with the film thickness to be formed. The ultraviolet curable resin composition for an optical disk of the present invention can be suitably used as a coating agent for a light transmitting layer on a laser incident side such as a Blu-ray disk. Specifically, the resin film to be coated has a thickness of 1 to 1, and any method in which the melon is preferably 1 to 1 Å. For example, the resin of the present invention is spin-coated, ruthenium, roll-coated, screen printing, or the like. The composition is coated on a disc substrate. Preferably, the interface layer is coated on a substrate having an organic dye recording layer and an interface layer formed thereon. 322934 29 201212022 substrate. After coating, the light is cured by irradiating ultraviolet light to near-ultraviolet light (near the wavelength of 200 to 400 nm) on one side or both sides. The irradiation amount is preferably about 50 to 1500 mJ/cm2, and particularly preferably 1 to 1000 mj/cm2. When hardened by irradiation of ultraviolet or near-ultraviolet light, it is possible to illuminate the lamp with ultraviolet or even near-ultraviolet light without regard to the light source. For example, a low pressure, high pressure, or ultra high pressure mercury lamp, a metal halogen lamp, a (pulse) xenon lamp, or an electrodeless lamp can be cited. In the ultraviolet curable resin composition of the present invention, the light transmissive layer is a first resin layer formed on the recording layer or the interface layer formed thereon, and the recording layer or interface as seen from the first resin layer In the case where the layer side is composed of the second resin layer formed on the opposite surface, it may be suitably used in the first resin layer. In this case, the thickness of the foregoing first resin layer is usually from 1 μm to 5 Å/m, and preferably from 5 #m to 40/ζηη, more preferably from 1〇 to 30 // m °. The thickness of the second resin layer is usually 5 Å to 100 " m, and preferably 6 〇//m to 95 Å, more preferably 70/zm to 90 Å. When the light-transmitting layer (protective layer) is composed of two layers, it is a method of forming a light-transmitting layer (protective layer), specifically, a resin coated as the first resin layer (the resin composition layer of the present invention). The film thickness is, for example, 1 to 50 /zm, preferably 1 5 Qn l is the main one, and any method is preferably 1 to 30 # m, for example, spin coating, 2P method, roll coating, The composition is coated on the optical disk substrate by a screen printing method or the like. After coating, it is hardened by irradiating light of ultraviolet or even near ultraviolet (near wavelengths of 200 to 400 nm) on one side or both sides. 30 322934 201212022 The exposure is preferably 50 to 1500 mJ/cm2. The best is loo to loo〇mj /cm2. After the first resin layer is hardened, the film thickness of the second resin layer is, for example, 50 to 100 μm, preferably 70 to ΙΟΟμπι, and more preferably 70 to 90 μm, for example, to spin. A coating method, a two-step method, a roll coating method, a screen printing method, or the like is applied to a disc substrate by a resin composition for a light-transmitting layer different from the resin composition of the present invention. After coating, the light is cured by illuminating the ultraviolet or near ultraviolet (near the wavelength of 200 to 400 nm) light from one side or both sides. The irradiation amount is preferably from 50 to 1500 mJ/cm2, particularly preferably from about 100 to 1000 mJ/cm2. Further, it is hardened by irradiation with ultraviolet light or near ultraviolet light, as long as there is a light that irradiates ultraviolet or even near-infrared light. You don't have to think about the light source. For example, a low pressure, high pressure, or ultra high pressure mercury lamp, a metal lamp, a (pulse) xenon lamp, or an electrodeless lamp can be cited. Further, in the resin composition of the present invention, a light-transmitting layer can be formed by using a layer of a cured product of the resin composition of the present invention. The formation of the hardened layer may also be made to have a thickness of 50/zm to 1 〇〇//in, preferably 70 to 100/zm, and in addition to the argument that the second layer is not formed, according to the present invention described above The formation of the first layer of the resin composition is carried out. The light-transmitting layer formed of the cured product of the resin composition of the present invention has excellent light transmittance at around 400 nm, and is suitable as a light-transmitting layer for a Blu-ray disc. Preferably, the optical disk of the present invention obtained as described above has at least a plastic support substrate such as a carbonate of a guide groove, a reflective layer formed on the guide groove, and a record formed on the reflective layer. a layer {inorganic or organic recording 31 322934 201212022 layer, an organic pigment (usually azo dye, etc.) recording layer is preferred, an interface layer (dielectric layer) formed on the recording layer, formed on the interface layer, A disc having a cured layer (light transmitting layer) of the resin composition of the present invention. The cured layer (light-transmitting layer) of the resin composition of the present invention may be a single layer alone or a light-transmitting layer, and further on the cured layer of the resin composition of the present invention. There may be other cured layers of the resin composition for the light transmitting layer. In the latter case, the light-transmitting layer is formed by two layers of a cured layer of the resin composition of the present invention and a cured layer of a resin composition for other light-transmitting layers. In the optical disk of the present invention, when the cured layer of the resin composition of the present invention is directly formed on the interface layer formed by recording 餍 {on a recording layer containing an organic dye (usually azo dye or the like), the present invention can be achieved. effect. In particular, the optical disc of the hardened layer of the resin composition is described in the above-mentioned ideal aspects (I) to (XXIX), in particular, a Blu-ray disc having an organic dye recording layer, a jitter value before endurance test, or an endurance test The post-jitter value 'has been shown to have a very good value'. It is highly reliable when used for recording and for long periods of time under high temperature and high humidity. As is well known to the person skilled in the art, the interface layer is a layer formed of an inorganic compound containing a metal atom such as a complex containing a metal atom such as Zrl. Further, the recording layer in the optical disk of the present invention means a recording layer which can be written by laser light. In the optical disc of the present invention, a recording layer is provided on the recording information surface of the substrate. The recording layer is a recording layer material which is conventionally used as an optical recording medium. For example, a dye, an amorphous semiconductor, a part 32 322934 201212022 a nitride film, a partial bismuth film (inorganic film), and the like can be cited. The optical recording medium of the present invention may have a plurality of recording layers. In this case, the respective layers may be formed of the same material or may be formed by arbitrarily combining other materials. Thus, the optical properties such as transmittance can be changed in each layer. Specific examples of the amorphous semiconductor material used in the recording layer include materials such as SbTe, GeTe, GeSbTe, inSbTe, AgSbTe, AgInSbTe, GeSb, GeSbSn, InGeSbTe, and InGeSbSnTe. Among them, in order to increase the crystallization rate, it is preferred to use a composition containing Sb as a main component. Meanwhile, these amorphous semiconductor materials may be used singly or in combination of two or more kinds in any combination. Specific examples of the partial nitride film and the partial oxide film include a partial nitride film such as BiGeN or SnNbN, and a partial oxide film such as Te0x or BiF0x. EXAMPLES Hereinafter, the present invention will be more specifically described based on the examples, but the present invention is not limited by the examples. Examples 1 to 3 and Comparative Examples 1 and 2 The ultraviolet curable resin compositions of Examples 1 to 3 and Comparative Examples 1 and 2 were prepared by uniformly mixing the components shown in Table 1 by uniform mixing. 33 322934 201212022 [Table 1] Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Ingredient (A) ADT-250 65 A-PTMG-65 75 55 TPGDA 65 FA-124AS 65 Ingredient (B) IRGACURE-184 4 4 4 4 4 Ingredient (C) UA-1 30 40 30 30 BPE-10 20 Other ingredients LA-82 0. 5 0. 5 0. 5 0. 5 0. 5 PMP 0. 5 0. 5 0. 5 0. 5 0. 5 Jitter value before durability test (%) 6. 2 6. 4 6. 2 11. 8 12. 5 Judgment 〇 〇 〇 X X Dither value after durability test (%) 8. 5 8. 8 8. 0 14. 0 15. 1 Judgment 〇 〇 〇 X X Elasticity (MPa) 25 ° C / lHz 100 28 17 1200 1600 At the same time, the components shown schematically in Table 1 are as follows. A-PTMG-65: polytetradecyl diol bis(indenyl) acrylate (manufactured by Shin-Nakamura Chemical Co., Ltd., R of formula (2) is a hydrogen atom, and compound of n=9) ADT-250 Polytetramethylene glycol diacrylate (manufactured by Nippon Oil Co., Ltd., R of formula (2) is a hydrogen atom, and compound of n=3) TPGDA: tripropylene glycol diacrylate (manufactured by Sartomer Co., Ltd.) 3) Compound) 34 322934 201212022 〇FA-_U-Butanediol diacrylate vinegar (R of formula (2) is a hydrogen atom, n ^ Chengye (stock) company B-carbamic acid acetoacetic acid vinegar ( Will be four:: different Buddha _ two different atmosphere with Mo Er ratio 1:2: 2 庳 庳 日 日 日 日 日 日 3 3 3 3 3 3 3 3 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业 工业35 propylene diacetate (the first - ^ 82: methacrylic acid 12, 2, 66 _ Wujia Wuhua (stock) company) tropazine (Shu electric PMP: 4-nonyl phenol by making The present invention is purple hard (4) (four) = or (the method described in the broad description of the production of the blue light of the pigment recording layer is estimated =) two methods: the method of recording the resulting blue light disc recording: = record. In addition, the resin composition of the present invention Things 'hard ^ rate' (5) The method described above is carried out, and the results are shown in the above Table 1. (1) A Blu-ray disc is produced using the resin compositions of Examples 1 and 2 (the light-transmitting layer is used for the cured resin layer of the present invention and other light-transmitting layers) a blue light disc having a pigment recording layer formed by two layers of a cured resin layer) 1. In track pitch 0.  The diameter of the 32 um guide groove is i2 cm, 35 322934 201212022 The polycarbonate substrate having a thickness of 1·1 mm is formed so that the silver alloy has a film thickness of just nm to form a reflective layer. Thereafter, the dye solution in which the azo dye was dissolved in a tetrafluoropropanol solvent was applied by spin coating, and dried at W 80 C for 30 minutes to form a dye recording layer. Further, ZM-si〇2 (Morby 80:20) was sputtered with a thickness of about 15 (10) to form an interface layer, and a Blu-ray disc substrate was produced. 2.  The Blu-ray optical disc substrate is placed on the upper sheet on the interface layer, and the inner diameter is up to the cover pattern to perform circular 2; cap processing, and then the 0. 0 § ultraviolet curable resin composition of the present invention is supplied to the center portion. Cap on the cover. 3.  The viscosity of the ultraviolet curable resin composition of the present invention was adjusted, and it was applied by spin coating at a speed range of from 1 Torr to 150 rpm for 4 seconds to 7 seconds so that the thickness of each coating film was 25 μm. At the end of the spin coating, 2 shots (sh〇t) were irradiated with a gas flash to harden the surface to no degree of fluidity. 4.  The ultraviolet curable resin composition of the present invention was completely cured by irradiation with a high pressure mercury lamp at 4 〇〇 mJ/cm 2 for 3 seconds from the upper side. 5. The hardened ultraviolet curable resin composition of the present invention is coated on the rotating sheet in an upper manner to have an inner diameter of 11. The 5 mra overlay style is rounded to the cap and then 3.  0g BRD_864 (Resin for light transmission layer for Blu-ray discs made by Nippon Kayaku Co., Ltd.) is supplied to the cap of the center. 6. The coating was applied at a speed of 1500 rpm for 4 seconds to 7 seconds, and the coating film thickness was applied in a 75 ura manner. At the end of the spin coating, 2 shots (sh〇t) were irradiated with a xenon flash lamp to harden the surface to a degree of no fluidity. 36 322934 201212022 7. The high-definition mercury lamp was used, and the BRD-864 was completely hardened by irradiation with the gamma for 3 seconds from the upper side, and the Blu-ray disc of the present invention can be produced. (ii) A Blu-ray disc was produced using the resin composition of Example 3 (the light-transmitting layer is a blue-ray disc having a color recording layer formed by the resin cured layer of the present invention). The diameter of the 32 um guide groove is 12 (10), and the thickness of the polycarbonate substrate is such that the silver alloy is sputtered to a film thickness of 1 〇〇 (10), and is turned into a reflective layer. Thereafter, the dye solution in which the azo dye was dissolved in the TFp (tetrafluoropropanol) solvent was applied by spin coating, and the organic dye recording layer was formed by drying at 8 (rc for 30 minutes. Further, Zns_si02 (mole ratio 80.  20) The antimony ore is formed by a thickness of about 15 nm to form an interface layer, and a Blu-ray disc substrate is produced. 2.  The blue light disc substrate is covered on the rotating thin film in such a manner that the interface layer is on the upper surface, and the inner diameter is up to U.  The 5 mm cover pattern is rounded to the cap and then 2. 0 g The ultraviolet curable resin composition of the present invention is supplied to the cap of the center portion. 3.  & The viscosity of the ultraviolet curable resin composition of the present invention is spin-coated at a speed ranging from rpm to 130 rpm for 4 seconds to 7 seconds, so that the film thickness after curing of each coating film becomes 1 〇〇 um Coating. At the end of the spin coating, 2 shots (sh〇t) were irradiated with a xenon flash lamp to harden the surface to a degree of no fluidity. 4.  Using a high-pressure mercury lamp, the ultraviolet curable resin composition of the present invention was completely cured by irradiating it at 4 〇〇 mJ/cm 2 for 3 seconds from the upper side to prepare a Blu-ray disc of the present invention. 37 322934 201212022 (iii) Recording signal characteristics before and after the durability test of Blu-ray discs The optical disc of the present invention was placed in an environment of 8 (TC, 85% RH for 250 hours. Using a Blu-ray Disc information signal measuring device (Palus Technology Industries) (Pulstec) company ODU-1000), online speed 4.  92 m/s, regenerative power 0. 30mW’ recorded electricity. 〇mw, T continuous record (IT length = 0. 08um) The recording signal characteristics (jitter value) of the Blu-ray disc before and after the durability test were measured and evaluated on the basis of the following criteria. The jitter value is one of the electrical signals of the optical disc. The higher the value is, the less the signal information of the Blu-ray disc is. When it becomes 10% or more, the reading and writing of the data becomes difficult. Evaluation of jitter value 〇· · · The jitter value is less than 10.  0% X · · · Jitter value 10.  0% or more. (i v) Measurement of the modulus of elasticity of the cured resin layer of the present invention The modulus of elasticity is measured in accordance with the viscoelasticity measurement according to JIS K 7244-5. In other words, a coating film was formed so that the thickness of the resin composition of the present invention became 1 mm after hardening, and it was hardened by a cumulative light amount of 1 J/cm 2 using a Fusion lamp D pulse to prepare a length of 5 cm and a width of 1 cm. The sample piece having a thickness of 1 mm was measured by a viscoelasticity measuring device DMS 6100 manufactured by SII Nanotechnology Co., Ltd. The measurement was carried out in a bending mode, and the measurement was carried out in the range of -50 ° C to 200 ° C under the conditions of an amplitude load of 10 mN, a frequency of 1 Hz, and a temperature increase rate of 2 ° C / min. (v) Measurement of Transmittance of Blue Light (Light Near 400 nm) Using the resin compositions obtained in the above Examples 1 to 3, each sample for measuring the light transmittance after curing with a film thickness of 100 μm was used, and 322934 was used. 38 201212022 Spectrophotometer (U-3310 'Hitachi High-Tech Co., Ltd.) measured the absorbance of light at 405 rim in each sample to obtain the light transmittance. The light transmittance in the sample can be more than 85%. From the results of Table 1, the resin compositions of the present invention containing Examples 1 and 2 having the structure of (indenyl)acrylic acid represented by the general formula (1) can be well-recorded before and after the relevant durability test. The characteristics of the signal. On the other hand, Comparative Example 2 containing the compound of the formula (3) and Comparative Example 2 containing the compound of the formula (2) wherein R is a hydrogen atom and n = 1 were incapable of obtaining good recording signal characteristics before and after the durability test. [Industrial Applicability] When the composition of the present invention is used as a resin composition for light transmission of an optical disk, the obtained cured layer has excellent light transmittance in the vicinity of _nm of blue light and the obtained optical disk The recording signal characteristics are excellent and the long-lasting property is also excellent. Therefore, the resin composition of the present invention and the optical disk of the present invention, particularly the optical disk containing the organic dye recording layer, are very useful in blue light. [Simple diagram description] None [Main component symbol description] None 322934 39

Claims (1)

201212022 零 七、申請專利範圍： 1. 一種光碟，具備：含有（A)具有下述一般式（1)所示結構 的（曱基）丙烯酸酯（但是，丁二醇（曱基）丙烯酸酯除 外）、（B)光聚合起始劑、及（C)上述（A)以外之（曱基） 丙烯酸酯之紫外線硬化型樹脂組成物的硬化物層及記 錄層， 式（1) (1) 式中，η表示1至30的整數。 2. —種具有記錄層之光碟用紫外線硬化型樹脂組成物，係 含有（Α)具有下述一般式（1)所示結構的（曱基）丙烯酸 酯（但是，丁二醇（甲基）丙烯酸酯除外）、（Β)光聚合起 始劑、及（C)上述（Α)以外之（曱基）丙烯酸酯， 式（1)201212022 VII. Patent application scope: 1. An optical disc having: (A) (fluorenyl) acrylate having the structure represented by the following general formula (1) (except for butylene glycol (mercapto) acrylate) (B) a photopolymerization initiator, and (C) a cured layer and a recording layer of the ultraviolet curable resin composition of (mercapto) acrylate other than the above (A), formula (1) (1) Where η represents an integer of 1 to 30. 2. An ultraviolet curable resin composition for a disc having a recording layer, comprising (fluorene) acrylate having a structure represented by the following general formula (1) (however, butanediol (methyl)) (except acrylate), (Β) photopolymerization initiator, and (C) (曱) acrylate other than the above (Α), formula (1) (1) 式中，η表示1至30的整數。 3.如申請專利範圍第2項所述之光碟用紫外線硬化型樹 脂組成物，其中，（Α)具有一般式（1)所示結構的（曱基） 丙烯酸酯（但是，丁二醇（甲基）丙烯酸酯除外）為聚（四 亞甲基二醇）二（曱基）丙烯酸酯，或聚（C2或C3伸烷基 二醇-四亞曱基二醇）二（曱基）丙烯酸酯。 1 322934 201212022 4.如申請專利範圍第2項所述之光碟用紫外線硬化型樹 脂組成物，其中，前述（曱基）丙烯酸酯（A)為具有下述 一般式（2)所示結構的（曱基）丙烯酸酯， h2c= o-c-c=ch2 (2) 式中，R表示氫原子或曱基，η表示2至10之整數。 5. 如申請專利範圍第2項所述之光碟用紫外線硬化型樹 脂組成物，其中，相對於組成物全體，前述（曱基）丙烯 酸酯（Α)是含有20至95重量％。 6. 如申請專利範圍第2項所述之光碟用紫外線硬化型樹 脂組成物，其中，（Α)以外之（曱基）丙烯酸酯（C)為選自 由環氧基（曱基）丙烯酸酯（C-1)、胺基曱酸酯（甲基）丙 烯酸酯（C-2)、及前述（A)、（C-1)、及（C-2)以外之（甲 基）丙烯酸酯單體（C-3)所成群組中之至少一種。 7. 如申請專利範圍第2項所述之光碟用紫外線硬化型樹 脂組成物，其中，（Α)以外之（曱基）丙烯酸酯（C)為聚酯 多元醇或聚醚多元醇，與多異氰酸酯及丙烯酸2-羥基 乙基酯反應而得之胺基甲酸酯丙烯酸酯或聚環氧乙烷 改質雙紛Α型二丙烯酸S旨的任何一者或是兩者。 8. 如申請專利範圍第2項所述之光碟用紫外線硬化型樹 脂組成物，其中，相對於組成物全體，前述（曱基）丙烯 酸酯（A)是含有20至95重量％，（B)光聚合起始劑的含 量為1至10重量％，其餘部分為（A)以外之（甲基）丙烯 2 322934 201212022 酸酯（c)。 9.如申請專利範圍第2項所述之光碟用紫外線硬化型樹 脂組成物，其中，硬化時的硬化物在2代 0.01 至 100 MPa。 ίο.二種硬化物，係對申請專利範圍第2至9項任一項中所 述之务外線硬化型樹脂組成物照射活性能量線而得者。 U.f種申請專利範’ 1項職之光碟的製造方法，其特 ft係在具有A錄層之光碟基板，塗布巾請專利範圍第2 至9項中任—項輯的紫祕硬化型樹频成物後，照 射活性能量㈣找切基板上’形成_脂組成物的 硬化物層。 12· 一種申料難圍第…射任-韻述的紫外線硬 化型樹脂組成物_用途，剌以在具有記錄層之光碟 形成光透過層者。 13·如申4專利範圍第丨項所述之光碟，其係具有有機色素 記錄層。 4.如申#專利範㈣2 i 9項巾任—項所述之紫外線硬化 型樹脂組成物，其中，光碟為具有有機色素記錄層之光 碟0 15.如申請專利範圍第2至9項，及第14項中任一項所述 之i外線硬化型樹脂組成物，其中，作為上述（a)以外 之（曱基）丙烯酸酯（C)，相對於樹脂組成物之總量，胺 基甲SscS曰（甲基）丙稀酸酯（c_2)是含有2〇至6〇重量％。 322934 3 201212022 四、 指定代表圖： (一)本案指定代表圖為：第（）圖。（本案無圖式） .(二)本代表圖之元件符號簡單說明：（無） 五、 本案若有化學式時，請揭示最能顯示發明特徵的化學式： 式（1)(1) In the formula, η represents an integer of 1 to 30. 3. The ultraviolet curable resin composition for optical discs according to the second aspect of the invention, wherein (Α) has a (fluorenyl) acrylate having a structure represented by the general formula (1) (however, butanediol (A) (except acrylate) is poly(tetramethylene glycol) bis(indenyl) acrylate, or poly(C2 or C3 alkylene glycol-tetradecylene diol) bis(indenyl) acrylate . The ultraviolet curable resin composition for optical discs according to the second aspect of the invention, wherein the (mercapto) acrylate (A) has a structure represented by the following general formula (2) ( Indenyl) acrylate, h2c = occ = ch2 (2) wherein R represents a hydrogen atom or a fluorenyl group, and η represents an integer of 2 to 10. 5. The ultraviolet curable resin composition for optical discs according to the second aspect of the invention, wherein the (mercapto) acrylate (Α) is contained in an amount of 20 to 95% by weight based on the entire composition. 6. The ultraviolet curable resin composition for optical discs according to the second aspect of the invention, wherein the (fluorenyl) acrylate (C) other than (Α) is selected from the group consisting of epoxy (fluorenyl) acrylates ( C-1), amino phthalate (meth) acrylate (C-2), and (meth) acrylate monomers other than the above (A), (C-1), and (C-2) (C-3) at least one of the groups. 7. The ultraviolet curable resin composition for optical discs according to the second aspect of the invention, wherein the (mercapto) acrylate (C) other than (Α) is a polyester polyol or a polyether polyol, and more Either or both of the urethane acrylate or the polyethylene oxide modified di-dicarboxylic acid diacrylate obtained by reacting the isocyanate with 2-hydroxyethyl acrylate. 8. The ultraviolet curable resin composition for optical discs according to the second aspect of the invention, wherein the (mercapto) acrylate (A) is contained in an amount of 20 to 95% by weight based on the entire composition, (B) The photopolymerization initiator is contained in an amount of from 1 to 10% by weight, and the balance is (meth) propylene 2 322934 201212022 acid ester (c) other than (A). 9. The ultraviolet curable resin composition for optical discs according to the second aspect of the invention, wherein the hardened material at the time of hardening is from 0.01 to 100 MPa in two generations. Ίο. The two types of cured products are obtained by irradiating an active energy ray to an external hardening type resin composition as described in any one of claims 2 to 9. Uf kind of patent application model of the 1st position of the optical disc, the special ft is on the optical disc substrate with the A recording layer, and the coated towel is the patented range 2 to 9 After the product is formed, the active energy is irradiated (4) to form a hardened layer of the 'former composition' on the substrate. 12. A kind of ultraviolet hardening type resin composition which is used for the application of the syllabus, and is used for forming a light transmission layer on a disc having a recording layer. 13. The optical disc of claim 4, which has an organic dye recording layer. 4. The ultraviolet curable resin composition according to the above-mentioned patent, wherein the optical disc is a disc having an organic dye recording layer, as disclosed in claim 2, and The i-ray-curable resin composition according to any one of the above-mentioned (a), wherein the (meth) acrylate (C) other than the above (a), the amine-based SscS is based on the total amount of the resin composition. The hydrazine (meth) acrylate (c_2) is contained in an amount of from 2 to 6 % by weight. 322934 3 201212022 IV. Designation of Representative Representatives: (1) The representative representative of the case is: (). (There is no picture in this case.) (2) A brief description of the symbol of the representative figure: (none) 5. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: (1) 3 3229343 322934
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